/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-78.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:58:11,233 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:58:11,300 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 01:58:11,305 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:58:11,306 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:58:11,325 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:58:11,325 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:58:11,325 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:58:11,326 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:58:11,326 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:58:11,327 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:58:11,327 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:58:11,327 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:58:11,328 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:58:11,328 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:58:11,328 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:58:11,328 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:58:11,329 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:58:11,329 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:58:11,329 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:58:11,329 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:58:11,333 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:58:11,333 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:58:11,333 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:58:11,333 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:58:11,334 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:58:11,334 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:58:11,334 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:58:11,334 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:58:11,334 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:58:11,335 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:58:11,335 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:58:11,335 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:58:11,335 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:58:11,335 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:58:11,335 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:58:11,336 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:58:11,336 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:58:11,336 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:58:11,336 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:11,336 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:58:11,337 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:58:11,337 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:58:11,337 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:58:11,337 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:11,512 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:58:11,533 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:58:11,537 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:58:11,538 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:58:11,538 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:58:11,539 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-78.i
[2024-11-03 01:58:12,766 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:58:12,931 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:58:12,931 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-78.i
[2024-11-03 01:58:12,943 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dddeac7a/071c9ef635c54614b87336dca514bc9e/FLAG0ed512f9a
[2024-11-03 01:58:12,954 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dddeac7a/071c9ef635c54614b87336dca514bc9e
[2024-11-03 01:58:12,956 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:58:12,957 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:58:12,958 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:58:12,958 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:58:12,965 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:58:12,965 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:58:12" (1/1) ...
[2024-11-03 01:58:12,966 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb76d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:12, skipping insertion in model container
[2024-11-03 01:58:12,966 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:58:12" (1/1) ...
[2024-11-03 01:58:12,987 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:58:13,102 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-78.i[915,928]
[2024-11-03 01:58:13,152 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:58:13,171 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:58:13,181 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-78.i[915,928]
[2024-11-03 01:58:13,211 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:58:13,233 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:58:13,235 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:13 WrapperNode
[2024-11-03 01:58:13,235 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:58:13,236 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:58:13,236 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:58:13,236 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:58:13,241 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:13" (1/1) ...
[2024-11-03 01:58:13,253 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:13" (1/1) ...
[2024-11-03 01:58:13,273 INFO  L138                Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135
[2024-11-03 01:58:13,273 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:58:13,274 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:58:13,274 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:58:13,274 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:58:13,282 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:13" (1/1) ...
[2024-11-03 01:58:13,283 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:13" (1/1) ...
[2024-11-03 01:58:13,288 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:13" (1/1) ...
[2024-11-03 01:58:13,298 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 01:58:13,299 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:13" (1/1) ...
[2024-11-03 01:58:13,299 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:13" (1/1) ...
[2024-11-03 01:58:13,306 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:13" (1/1) ...
[2024-11-03 01:58:13,308 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:13" (1/1) ...
[2024-11-03 01:58:13,310 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:13" (1/1) ...
[2024-11-03 01:58:13,311 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:13" (1/1) ...
[2024-11-03 01:58:13,314 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:58:13,315 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:58:13,315 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:58:13,315 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:58:13,316 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:13" (1/1) ...
[2024-11-03 01:58:13,325 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:58:13,336 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:58:13,352 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 01:58:13,355 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 01:58:13,374 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:58:13,375 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:58:13,375 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:58:13,375 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:58:13,375 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:58:13,376 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:58:13,448 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:58:13,450 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:58:19,207 INFO  L?                        ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-11-03 01:58:19,207 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:58:19,216 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:58:19,216 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:58:19,216 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:58:19 BoogieIcfgContainer
[2024-11-03 01:58:19,217 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:58:19,219 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:58:19,220 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:58:19,222 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:58:19,223 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:58:12" (1/3) ...
[2024-11-03 01:58:19,223 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffee9c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:58:19, skipping insertion in model container
[2024-11-03 01:58:19,224 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:13" (2/3) ...
[2024-11-03 01:58:19,224 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffee9c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:58:19, skipping insertion in model container
[2024-11-03 01:58:19,224 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:58:19" (3/3) ...
[2024-11-03 01:58:19,225 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-78.i
[2024-11-03 01:58:19,237 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:58:19,238 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:58:19,282 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:58:19,288 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;@18e85cf0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:58:19,288 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:58:19,291 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 57 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 37 states have internal predecessors, (48), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 01:58:19,299 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 118
[2024-11-03 01:58:19,299 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:58:19,300 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:58:19,300 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:58:19,304 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:58:19,304 INFO  L85        PathProgramCache]: Analyzing trace with hash -303364268, now seen corresponding path program 1 times
[2024-11-03 01:58:19,310 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:58:19,311 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862543070]
[2024-11-03 01:58:19,311 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:58:19,312 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:19,313 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:58:19,314 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:58:19,315 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process
[2024-11-03 01:58:19,635 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:58:19,657 INFO  L255         TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:58:19,666 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:58:19,725 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked.
[2024-11-03 01:58:19,725 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:58:20,001 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked.
[2024-11-03 01:58:20,002 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:58:20,002 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862543070]
[2024-11-03 01:58:20,003 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1862543070] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:58:20,003 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:58:20,003 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:58:20,004 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793299249]
[2024-11-03 01:58:20,005 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:58:20,008 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:58:20,008 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:58:20,029 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:58:20,029 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:58:20,031 INFO  L87              Difference]: Start difference. First operand  has 57 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 37 states have internal predecessors, (48), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 01:58:20,047 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:58:20,047 INFO  L93              Difference]: Finished difference Result 107 states and 180 transitions.
[2024-11-03 01:58:20,048 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:58:20,049 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 117
[2024-11-03 01:58:20,050 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:58:20,054 INFO  L225             Difference]: With dead ends: 107
[2024-11-03 01:58:20,054 INFO  L226             Difference]: Without dead ends: 53
[2024-11-03 01:58:20,057 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 232 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 01:58:20,059 INFO  L432           NwaCegarLoop]: 77 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, 77 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 01:58:20,060 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:58:20,071 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-11-03 01:58:20,089 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2024-11-03 01:58:20,090 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 53 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 01:58:20,091 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 77 transitions.
[2024-11-03 01:58:20,093 INFO  L78                 Accepts]: Start accepts. Automaton has 53 states and 77 transitions. Word has length 117
[2024-11-03 01:58:20,094 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:58:20,094 INFO  L471      AbstractCegarLoop]: Abstraction has 53 states and 77 transitions.
[2024-11-03 01:58:20,094 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 01:58:20,094 INFO  L276                IsEmpty]: Start isEmpty. Operand 53 states and 77 transitions.
[2024-11-03 01:58:20,098 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 118
[2024-11-03 01:58:20,098 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:58:20,098 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:58:20,102 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0
[2024-11-03 01:58:20,298 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:20,299 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:58:20,300 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:58:20,300 INFO  L85        PathProgramCache]: Analyzing trace with hash 200732360, now seen corresponding path program 1 times
[2024-11-03 01:58:20,300 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:58:20,300 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977080208]
[2024-11-03 01:58:20,300 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:58:20,301 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:20,301 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:58:20,302 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:58:20,303 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process
[2024-11-03 01:58:21,001 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:58:21,011 INFO  L255         TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:58:21,019 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:58:21,102 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 01:58:21,102 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:58:21,467 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 01:58:21,468 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:58:21,468 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977080208]
[2024-11-03 01:58:21,468 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [977080208] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:58:21,468 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:58:21,468 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2024-11-03 01:58:21,468 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177082489]
[2024-11-03 01:58:21,469 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:58:21,470 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 01:58:21,470 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:58:21,470 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 01:58:21,471 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 01:58:21,471 INFO  L87              Difference]: Start difference. First operand 53 states and 77 transitions. Second operand  has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 01:58:25,201 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:58:25,203 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:58:25,203 INFO  L93              Difference]: Finished difference Result 103 states and 151 transitions.
[2024-11-03 01:58:25,237 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:58:25,237 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 117
[2024-11-03 01:58:25,238 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:58:25,239 INFO  L225             Difference]: With dead ends: 103
[2024-11-03 01:58:25,239 INFO  L226             Difference]: Without dead ends: 53
[2024-11-03 01:58:25,239 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 01:58:25,241 INFO  L432           NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2024-11-03 01:58:25,241 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2024-11-03 01:58:25,242 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-11-03 01:58:25,247 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2024-11-03 01:58:25,247 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 53 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 01:58:25,248 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions.
[2024-11-03 01:58:25,249 INFO  L78                 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 117
[2024-11-03 01:58:25,250 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:58:25,250 INFO  L471      AbstractCegarLoop]: Abstraction has 53 states and 76 transitions.
[2024-11-03 01:58:25,250 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 01:58:25,250 INFO  L276                IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions.
[2024-11-03 01:58:25,251 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 119
[2024-11-03 01:58:25,251 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:58:25,251 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:58:25,261 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0
[2024-11-03 01:58:25,452 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:25,452 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:58:25,453 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:58:25,453 INFO  L85        PathProgramCache]: Analyzing trace with hash 566889491, now seen corresponding path program 1 times
[2024-11-03 01:58:25,453 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:58:25,453 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777407629]
[2024-11-03 01:58:25,453 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:58:25,453 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:25,454 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:58:25,455 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:58:25,455 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 01:58:26,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:58:26,134 INFO  L255         TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 01:58:26,139 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:58:28,317 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 01:58:28,317 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:58:29,064 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 01:58:29,064 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:58:29,064 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777407629]
[2024-11-03 01:58:29,064 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [777407629] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:58:29,064 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:58:29,064 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-03 01:58:29,065 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027006570]
[2024-11-03 01:58:29,065 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:58:29,065 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 01:58:29,065 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:58:29,066 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 01:58:29,066 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-03 01:58:29,066 INFO  L87              Difference]: Start difference. First operand 53 states and 76 transitions. Second operand  has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2024-11-03 01:58:33,888 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:58:39,095 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:58:40,998 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:58:44,390 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:58:44,390 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:58:44,390 INFO  L93              Difference]: Finished difference Result 239 states and 342 transitions.
[2024-11-03 01:58:44,424 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-03 01:58:44,425 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 118
[2024-11-03 01:58:44,425 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:58:44,427 INFO  L225             Difference]: With dead ends: 239
[2024-11-03 01:58:44,427 INFO  L226             Difference]: Without dead ends: 189
[2024-11-03 01:58:44,428 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210
[2024-11-03 01:58:44,429 INFO  L432           NwaCegarLoop]: 80 mSDtfsCounter, 134 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 92 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time
[2024-11-03 01:58:44,429 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 365 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 223 Invalid, 1 Unknown, 0 Unchecked, 14.9s Time]
[2024-11-03 01:58:44,430 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 189 states.
[2024-11-03 01:58:44,448 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 151.
[2024-11-03 01:58:44,448 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 151 states, 93 states have (on average 1.2043010752688172) internal successors, (112), 93 states have internal predecessors, (112), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54)
[2024-11-03 01:58:44,450 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 220 transitions.
[2024-11-03 01:58:44,450 INFO  L78                 Accepts]: Start accepts. Automaton has 151 states and 220 transitions. Word has length 118
[2024-11-03 01:58:44,450 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:58:44,451 INFO  L471      AbstractCegarLoop]: Abstraction has 151 states and 220 transitions.
[2024-11-03 01:58:44,451 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2024-11-03 01:58:44,451 INFO  L276                IsEmpty]: Start isEmpty. Operand 151 states and 220 transitions.
[2024-11-03 01:58:44,452 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 119
[2024-11-03 01:58:44,452 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:58:44,452 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:58:44,463 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2024-11-03 01:58:44,652 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:44,653 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:58:44,654 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:58:44,654 INFO  L85        PathProgramCache]: Analyzing trace with hash 1246947861, now seen corresponding path program 1 times
[2024-11-03 01:58:44,654 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:58:44,654 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309031830]
[2024-11-03 01:58:44,654 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:58:44,654 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:44,654 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:58:44,656 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:58:44,657 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 01:58:45,565 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:58:45,575 INFO  L255         TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 01:58:45,578 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:58:46,651 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 01:58:46,652 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:58:59,397 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 01:58:59,397 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:58:59,398 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1309031830]
[2024-11-03 01:58:59,398 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1309031830] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:58:59,398 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:58:59,398 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-03 01:58:59,398 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291548187]
[2024-11-03 01:58:59,398 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:58:59,398 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 01:58:59,398 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:58:59,399 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 01:58:59,399 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-03 01:58:59,400 INFO  L87              Difference]: Start difference. First operand 151 states and 220 transitions. Second operand  has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2024-11-03 01:59:03,360 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:59:07,030 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:59:13,825 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 01:59:18,698 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 01:59:24,901 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:59:26,398 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 01:59:30,521 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 [1]
[2024-11-03 01:59:30,522 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:59:30,522 INFO  L93              Difference]: Finished difference Result 372 states and 528 transitions.
[2024-11-03 01:59:30,563 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-03 01:59:30,564 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 118
[2024-11-03 01:59:30,564 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:59:30,567 INFO  L225             Difference]: With dead ends: 372
[2024-11-03 01:59:30,567 INFO  L226             Difference]: Without dead ends: 272
[2024-11-03 01:59:30,568 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-03 01:59:30,568 INFO  L432           NwaCegarLoop]: 72 mSDtfsCounter, 85 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 11 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time
[2024-11-03 01:59:30,568 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 290 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 197 Invalid, 4 Unknown, 0 Unchecked, 31.1s Time]
[2024-11-03 01:59:30,572 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 272 states.
[2024-11-03 01:59:30,606 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 262.
[2024-11-03 01:59:30,607 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 262 states, 173 states have (on average 1.2254335260115607) internal successors, (212), 177 states have internal predecessors, (212), 80 states have call successors, (80), 8 states have call predecessors, (80), 8 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80)
[2024-11-03 01:59:30,609 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 372 transitions.
[2024-11-03 01:59:30,610 INFO  L78                 Accepts]: Start accepts. Automaton has 262 states and 372 transitions. Word has length 118
[2024-11-03 01:59:30,610 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:59:30,610 INFO  L471      AbstractCegarLoop]: Abstraction has 262 states and 372 transitions.
[2024-11-03 01:59:30,610 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2024-11-03 01:59:30,611 INFO  L276                IsEmpty]: Start isEmpty. Operand 262 states and 372 transitions.
[2024-11-03 01:59:30,612 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 119
[2024-11-03 01:59:30,612 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:59:30,612 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:59:30,629 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0
[2024-11-03 01:59:30,813 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:59:30,814 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:59:30,814 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:59:30,814 INFO  L85        PathProgramCache]: Analyzing trace with hash 1948012439, now seen corresponding path program 1 times
[2024-11-03 01:59:30,815 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:59:30,815 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1189880887]
[2024-11-03 01:59:30,815 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:59:30,815 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:59:30,815 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:59:30,816 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:59:30,817 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2024-11-03 01:59:31,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:59:31,912 INFO  L255         TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 54 conjuncts are in the unsatisfiable core
[2024-11-03 01:59:31,917 INFO  L278         TraceCheckSpWp]: Computing forward predicates...