/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 --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-84.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:00:00,294 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:00:00,369 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-06 08:00:00,376 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:00:00,377 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:00:00,409 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:00:00,411 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:00:00,411 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:00:00,412 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:00:00,413 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:00:00,413 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:00:00,413 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:00:00,414 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:00:00,414 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:00:00,415 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:00:00,415 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:00:00,417 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:00:00,418 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:00:00,418 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:00:00,418 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:00:00,419 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:00:00,424 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:00:00,424 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:00:00,424 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:00:00,425 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:00:00,425 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:00:00,425 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:00:00,425 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:00:00,426 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:00:00,426 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:00:00,426 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:00:00,426 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:00:00,427 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:00:00,427 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:00:00,427 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:00:00,427 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:00:00,428 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:00:00,428 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:00:00,428 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:00:00,428 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:00:00,429 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:00:00,429 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:00:00,429 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:00:00,429 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:00:00,430 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:00:00,641 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:00:00,666 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:00:00,671 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:00:00,672 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:00:00,673 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:00:00,674 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-84.i
[2024-11-06 08:00:02,079 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:00:02,248 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:00:02,249 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-84.i
[2024-11-06 08:00:02,257 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bf8ddca4/b02826bbdc30464a9ac721911eb68452/FLAGe013d0532
[2024-11-06 08:00:02,271 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bf8ddca4/b02826bbdc30464a9ac721911eb68452
[2024-11-06 08:00:02,273 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:00:02,274 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:00:02,276 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:00:02,276 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:00:02,281 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:00:02,282 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:00:02" (1/1) ...
[2024-11-06 08:00:02,283 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2514f398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:00:02, skipping insertion in model container
[2024-11-06 08:00:02,283 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:00:02" (1/1) ...
[2024-11-06 08:00:02,312 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:00:02,454 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_floatingpointinfluence_no-floats_file-84.i[916,929]
[2024-11-06 08:00:02,502 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:00:02,520 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:00:02,529 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_floatingpointinfluence_no-floats_file-84.i[916,929]
[2024-11-06 08:00:02,549 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:00:02,567 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:00:02,568 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:00:02 WrapperNode
[2024-11-06 08:00:02,568 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:00:02,569 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:00:02,569 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:00:02,569 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:00:02,574 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:00:02" (1/1) ...
[2024-11-06 08:00:02,585 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:00:02" (1/1) ...
[2024-11-06 08:00:02,610 INFO  L138                Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117
[2024-11-06 08:00:02,611 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:00:02,612 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:00:02,612 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:00:02,612 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:00:02,622 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:00:02" (1/1) ...
[2024-11-06 08:00:02,623 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:00:02" (1/1) ...
[2024-11-06 08:00:02,627 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:00:02" (1/1) ...
[2024-11-06 08:00:02,638 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].
[2024-11-06 08:00:02,638 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:00:02" (1/1) ...
[2024-11-06 08:00:02,638 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:00:02" (1/1) ...
[2024-11-06 08:00:02,649 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:00:02" (1/1) ...
[2024-11-06 08:00:02,653 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:00:02" (1/1) ...
[2024-11-06 08:00:02,654 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:00:02" (1/1) ...
[2024-11-06 08:00:02,655 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:00:02" (1/1) ...
[2024-11-06 08:00:02,658 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:00:02,659 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:00:02,659 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:00:02,659 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:00:02,660 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:00:02" (1/1) ...
[2024-11-06 08:00:02,669 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:00:02,681 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:00:02,696 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)
[2024-11-06 08:00:02,698 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
[2024-11-06 08:00:02,717 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:00:02,717 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:00:02,717 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:00:02,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:00:02,718 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:00:02,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:00:02,785 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:00:02,787 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:00:03,050 INFO  L?                        ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-06 08:00:03,051 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:00:03,063 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:00:03,065 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:00:03,066 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:00:03 BoogieIcfgContainer
[2024-11-06 08:00:03,066 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:00:03,068 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:00:03,068 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:00:03,072 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:00:03,072 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:00:02" (1/3) ...
[2024-11-06 08:00:03,073 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e27d600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:00:03, skipping insertion in model container
[2024-11-06 08:00:03,073 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:00:02" (2/3) ...
[2024-11-06 08:00:03,073 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e27d600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:00:03, skipping insertion in model container
[2024-11-06 08:00:03,074 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:00:03" (3/3) ...
[2024-11-06 08:00:03,075 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-84.i
[2024-11-06 08:00:03,090 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:00:03,091 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:00:03,181 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:00:03,189 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;@5adf2265, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:00:03,190 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:00:03,194 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 56 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-06 08:00:03,208 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2024-11-06 08:00:03,208 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:00:03,209 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:00:03,209 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:00:03,215 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:00:03,215 INFO  L85        PathProgramCache]: Analyzing trace with hash 1608907350, now seen corresponding path program 1 times
[2024-11-06 08:00:03,230 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:00:03,230 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1590015677]
[2024-11-06 08:00:03,231 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:00:03,231 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:00:03,231 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:00:03,234 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 08:00:03,235 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-06 08:00:03,398 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:00:03,404 INFO  L255         TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 08:00:03,419 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:00:03,463 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked.
[2024-11-06 08:00:03,463 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:00:03,464 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:00:03,464 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590015677]
[2024-11-06 08:00:03,464 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590015677] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:00:03,465 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:00:03,465 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 08:00:03,466 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605577388]
[2024-11-06 08:00:03,467 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:00:03,471 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 08:00:03,472 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:00:03,499 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 08:00:03,500 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:00:03,503 INFO  L87              Difference]: Start difference. First operand  has 56 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21)
[2024-11-06 08:00:03,537 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:00:03,537 INFO  L93              Difference]: Finished difference Result 105 states and 183 transitions.
[2024-11-06 08:00:03,539 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 08:00:03,540 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129
[2024-11-06 08:00:03,540 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:00:03,547 INFO  L225             Difference]: With dead ends: 105
[2024-11-06 08:00:03,547 INFO  L226             Difference]: Without dead ends: 52
[2024-11-06 08:00:03,550 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:00:03,552 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
[2024-11-06 08:00:03,553 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]
[2024-11-06 08:00:03,566 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2024-11-06 08:00:03,591 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2024-11-06 08:00:03,593 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 52 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-06 08:00:03,595 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions.
[2024-11-06 08:00:03,597 INFO  L78                 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 129
[2024-11-06 08:00:03,599 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:00:03,599 INFO  L471      AbstractCegarLoop]: Abstraction has 52 states and 77 transitions.
[2024-11-06 08:00:03,599 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21)
[2024-11-06 08:00:03,599 INFO  L276                IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions.
[2024-11-06 08:00:03,603 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2024-11-06 08:00:03,604 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:00:03,604 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:00:03,620 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-06 08:00:03,805 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:00:03,806 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:00:03,806 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:00:03,807 INFO  L85        PathProgramCache]: Analyzing trace with hash -1493085736, now seen corresponding path program 1 times
[2024-11-06 08:00:03,807 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:00:03,807 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945285265]
[2024-11-06 08:00:03,808 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:00:03,808 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:00:03,808 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:00:03,811 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 08:00:03,813 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-06 08:00:03,961 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:00:03,967 INFO  L255         TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 08:00:03,974 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:00:04,194 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked.
[2024-11-06 08:00:04,194 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:00:04,258 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:00:04,258 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945285265]
[2024-11-06 08:00:04,258 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945285265] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:00:04,258 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [224565253]
[2024-11-06 08:00:04,259 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:00:04,259 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-06 08:00:04,259 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-06 08:00:04,285 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)
[2024-11-06 08:00:04,287 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-06 08:00:04,459 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:00:04,462 INFO  L255         TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-06 08:00:04,472 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:00:04,633 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked.
[2024-11-06 08:00:04,633 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:00:04,656 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [224565253] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:00:04,657 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 08:00:04,657 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5
[2024-11-06 08:00:04,658 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501756700]
[2024-11-06 08:00:04,658 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 08:00:04,660 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-06 08:00:04,660 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:00:04,661 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-06 08:00:04,661 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-06 08:00:04,662 INFO  L87              Difference]: Start difference. First operand 52 states and 77 transitions. Second operand  has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)
[2024-11-06 08:00:04,918 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:00:04,918 INFO  L93              Difference]: Finished difference Result 107 states and 156 transitions.
[2024-11-06 08:00:04,923 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-06 08:00:04,924 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129
[2024-11-06 08:00:04,925 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:00:04,926 INFO  L225             Difference]: With dead ends: 107
[2024-11-06 08:00:04,926 INFO  L226             Difference]: Without dead ends: 58
[2024-11-06 08:00:04,927 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-11-06 08:00:04,928 INFO  L432           NwaCegarLoop]: 50 mSDtfsCounter, 33 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-06 08:00:04,929 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 109 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-06 08:00:04,933 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2024-11-06 08:00:04,948 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56.
[2024-11-06 08:00:04,949 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 56 states, 32 states have (on average 1.15625) internal successors, (37), 32 states have internal predecessors, (37), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-06 08:00:04,950 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 79 transitions.
[2024-11-06 08:00:04,951 INFO  L78                 Accepts]: Start accepts. Automaton has 56 states and 79 transitions. Word has length 129
[2024-11-06 08:00:04,953 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:00:04,954 INFO  L471      AbstractCegarLoop]: Abstraction has 56 states and 79 transitions.
[2024-11-06 08:00:04,954 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)
[2024-11-06 08:00:04,954 INFO  L276                IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions.
[2024-11-06 08:00:04,956 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2024-11-06 08:00:04,956 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:00:04,957 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:00:04,973 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-06 08:00:05,161 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2024-11-06 08:00:05,357 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-06 08:00:05,358 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:00:05,359 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:00:05,359 INFO  L85        PathProgramCache]: Analyzing trace with hash 1026874198, now seen corresponding path program 1 times
[2024-11-06 08:00:05,360 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:00:05,360 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716360179]
[2024-11-06 08:00:05,360 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:00:05,360 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:00:05,361 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:00:05,363 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 08:00:05,379 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-06 08:00:05,478 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:00:05,490 INFO  L255         TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-06 08:00:05,497 INFO  L278         TraceCheckSpWp]: Computing forward predicates...