/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/floats-esbmc-regression/nearbyint2.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 13:54:42,511 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 13:54:42,559 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 13:54:42,564 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 13:54:42,565 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 13:54:42,585 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 13:54:42,586 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 13:54:42,586 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 13:54:42,586 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 13:54:42,586 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 13:54:42,587 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 13:54:42,587 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 13:54:42,587 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 13:54:42,587 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 13:54:42,588 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 13:54:42,588 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 13:54:42,590 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 13:54:42,591 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 13:54:42,591 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 13:54:42,591 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 13:54:42,592 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 13:54:42,592 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 13:54:42,592 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 13:54:42,592 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 13:54:42,592 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 13:54:42,593 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 13:54:42,593 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 13:54:42,593 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 13:54:42,593 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 13:54:42,593 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 13:54:42,593 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 13:54:42,594 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 13:54:42,594 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 13:54:42,594 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 13:54:42,595 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:54:42,595 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 13:54:42,595 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 13:54:42,595 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 13:54:42,596 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 13:54:42,596 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 13:54:42,596 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 13:54:42,596 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 13:54:42,596 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 13:54:42,596 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 13:54:42,596 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 13:54:42,771 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 13:54:42,788 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 13:54:42,790 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 13:54:42,790 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 13:54:42,791 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 13:54:42,791 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/nearbyint2.i
[2024-11-03 13:54:43,961 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 13:54:44,161 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 13:54:44,161 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/nearbyint2.i
[2024-11-03 13:54:44,171 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e4efe9b8/0f7768f62e2549afa2fa1aa70f32d6ae/FLAGb9debfe5c
[2024-11-03 13:54:44,183 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e4efe9b8/0f7768f62e2549afa2fa1aa70f32d6ae
[2024-11-03 13:54:44,185 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 13:54:44,187 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 13:54:44,188 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 13:54:44,189 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 13:54:44,193 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 13:54:44,193 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:54:44" (1/1) ...
[2024-11-03 13:54:44,194 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28399939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:44, skipping insertion in model container
[2024-11-03 13:54:44,194 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:54:44" (1/1) ...
[2024-11-03 13:54:44,231 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 13:54:44,543 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/nearbyint2.i[38069,38082]
[2024-11-03 13:54:44,554 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:54:44,563 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 13:54:44,592 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/nearbyint2.i[38069,38082]
[2024-11-03 13:54:44,598 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:54:44,706 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 13:54:44,707 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:44 WrapperNode
[2024-11-03 13:54:44,707 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 13:54:44,708 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 13:54:44,708 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 13:54:44,708 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 13:54:44,713 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:44" (1/1) ...
[2024-11-03 13:54:44,727 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:44" (1/1) ...
[2024-11-03 13:54:44,743 INFO  L138                Inliner]: procedures = 459, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74
[2024-11-03 13:54:44,744 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 13:54:44,744 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 13:54:44,744 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 13:54:44,744 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 13:54:44,753 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:44" (1/1) ...
[2024-11-03 13:54:44,754 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:44" (1/1) ...
[2024-11-03 13:54:44,755 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:44" (1/1) ...
[2024-11-03 13:54:44,762 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-03 13:54:44,763 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:44" (1/1) ...
[2024-11-03 13:54:44,763 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:44" (1/1) ...
[2024-11-03 13:54:44,767 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:44" (1/1) ...
[2024-11-03 13:54:44,768 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:44" (1/1) ...
[2024-11-03 13:54:44,769 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:44" (1/1) ...
[2024-11-03 13:54:44,769 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:44" (1/1) ...
[2024-11-03 13:54:44,771 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 13:54:44,772 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 13:54:44,772 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 13:54:44,772 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 13:54:44,773 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:44" (1/1) ...
[2024-11-03 13:54:44,776 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:54:44,784 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 13:54:44,799 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-03 13:54:44,804 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-03 13:54:44,821 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 13:54:44,822 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-11-03 13:54:44,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-11-03 13:54:44,822 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 13:54:44,822 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 13:54:44,823 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 13:54:44,823 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode
[2024-11-03 13:54:44,824 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode
[2024-11-03 13:54:44,899 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 13:54:44,900 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 13:54:45,024 INFO  L?                        ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-11-03 13:54:45,024 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 13:54:45,035 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 13:54:45,036 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-03 13:54:45,036 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:54:45 BoogieIcfgContainer
[2024-11-03 13:54:45,036 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 13:54:45,040 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 13:54:45,040 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 13:54:45,042 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 13:54:45,043 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:54:44" (1/3) ...
[2024-11-03 13:54:45,044 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c69970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:54:45, skipping insertion in model container
[2024-11-03 13:54:45,044 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:54:44" (2/3) ...
[2024-11-03 13:54:45,044 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c69970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:54:45, skipping insertion in model container
[2024-11-03 13:54:45,044 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:54:45" (3/3) ...
[2024-11-03 13:54:45,045 INFO  L112   eAbstractionObserver]: Analyzing ICFG nearbyint2.i
[2024-11-03 13:54:45,057 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 13:54:45,057 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 13:54:45,102 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 13:54:45,107 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;@17379844, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 13:54:45,107 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 13:54:45,109 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 49 states, 29 states have (on average 1.206896551724138) internal successors, (35), 30 states have internal predecessors, (35), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-03 13:54:45,113 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-03 13:54:45,114 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:54:45,114 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:54:45,114 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:54:45,117 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:54:45,117 INFO  L85        PathProgramCache]: Analyzing trace with hash 2085159998, now seen corresponding path program 1 times
[2024-11-03 13:54:45,123 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:54:45,123 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806976643]
[2024-11-03 13:54:45,124 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:54:45,125 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:54:45,125 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:54:45,126 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:54:45,127 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 13:54:45,180 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:54:45,181 INFO  L255         TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 13:54:45,184 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:54:45,207 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 13:54:45,207 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:54:45,227 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 13:54:45,229 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:54:45,229 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806976643]
[2024-11-03 13:54:45,233 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1806976643] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:54:45,233 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:54:45,233 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2024-11-03 13:54:45,234 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391682076]
[2024-11-03 13:54:45,235 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:54:45,237 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 13:54:45,237 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:54:45,255 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 13:54:45,255 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 13:54:45,258 INFO  L87              Difference]: Start difference. First operand  has 49 states, 29 states have (on average 1.206896551724138) internal successors, (35), 30 states have internal predecessors, (35), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand  has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-03 13:54:45,316 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:54:45,316 INFO  L93              Difference]: Finished difference Result 101 states and 154 transitions.
[2024-11-03 13:54:45,318 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 13:54:45,319 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 11
[2024-11-03 13:54:45,319 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:54:45,323 INFO  L225             Difference]: With dead ends: 101
[2024-11-03 13:54:45,324 INFO  L226             Difference]: Without dead ends: 49
[2024-11-03 13:54:45,326 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 13:54:45,328 INFO  L432           NwaCegarLoop]: 61 mSDtfsCounter, 5 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-03 13:54:45,328 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 117 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 13:54:45,339 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2024-11-03 13:54:45,352 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49.
[2024-11-03 13:54:45,354 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 49 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-03 13:54:45,356 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 64 transitions.
[2024-11-03 13:54:45,357 INFO  L78                 Accepts]: Start accepts. Automaton has 49 states and 64 transitions. Word has length 11
[2024-11-03 13:54:45,357 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:54:45,357 INFO  L471      AbstractCegarLoop]: Abstraction has 49 states and 64 transitions.
[2024-11-03 13:54:45,357 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-03 13:54:45,357 INFO  L276                IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions.
[2024-11-03 13:54:45,358 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-03 13:54:45,358 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:54:45,358 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:54:45,361 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0
[2024-11-03 13:54:45,559 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:54:45,559 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:54:45,560 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:54:45,560 INFO  L85        PathProgramCache]: Analyzing trace with hash 1226873045, now seen corresponding path program 1 times
[2024-11-03 13:54:45,560 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:54:45,560 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460710307]
[2024-11-03 13:54:45,560 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:54:45,561 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:54:45,561 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:54:45,562 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:54:45,563 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 13:54:45,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-03 13:54:45,594 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-03 13:54:45,609 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-03 13:54:45,626 INFO  L130   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2024-11-03 13:54:45,627 INFO  L325         BasicCegarLoop]: Counterexample is feasible
[2024-11-03 13:54:45,630 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-03 13:54:45,635 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0
[2024-11-03 13:54:45,831 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:54:45,834 INFO  L407         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-03 13:54:45,845 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-03 13:54:45,847 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:54:45 BoogieIcfgContainer
[2024-11-03 13:54:45,847 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-03 13:54:45,848 INFO  L158              Benchmark]: Toolchain (without parser) took 1661.01ms. Allocated memory was 210.8MB in the beginning and 413.1MB in the end (delta: 202.4MB). Free memory was 155.0MB in the beginning and 306.1MB in the end (delta: -151.1MB). Peak memory consumption was 51.5MB. Max. memory is 8.0GB.
[2024-11-03 13:54:45,848 INFO  L158              Benchmark]: CDTParser took 0.22ms. Allocated memory is still 210.8MB. Free memory is still 166.0MB. There was no memory consumed. Max. memory is 8.0GB.
[2024-11-03 13:54:45,848 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 519.72ms. Allocated memory was 210.8MB in the beginning and 413.1MB in the end (delta: 202.4MB). Free memory was 154.7MB in the beginning and 357.5MB in the end (delta: -202.8MB). Peak memory consumption was 31.6MB. Max. memory is 8.0GB.
[2024-11-03 13:54:45,849 INFO  L158              Benchmark]: Boogie Procedure Inliner took 35.34ms. Allocated memory is still 413.1MB. Free memory was 357.5MB in the beginning and 354.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB.
[2024-11-03 13:54:45,849 INFO  L158              Benchmark]: Boogie Preprocessor took 27.27ms. Allocated memory is still 413.1MB. Free memory was 354.9MB in the beginning and 352.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2024-11-03 13:54:45,852 INFO  L158              Benchmark]: RCFGBuilder took 264.19ms. Allocated memory is still 413.1MB. Free memory was 352.8MB in the beginning and 337.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
[2024-11-03 13:54:45,852 INFO  L158              Benchmark]: TraceAbstraction took 806.97ms. Allocated memory is still 413.1MB. Free memory was 336.5MB in the beginning and 306.1MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB.
[2024-11-03 13:54:45,856 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.22ms. Allocated memory is still 210.8MB. Free memory is still 166.0MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 519.72ms. Allocated memory was 210.8MB in the beginning and 413.1MB in the end (delta: 202.4MB). Free memory was 154.7MB in the beginning and 357.5MB in the end (delta: -202.8MB). Peak memory consumption was 31.6MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 35.34ms. Allocated memory is still 413.1MB. Free memory was 357.5MB in the beginning and 354.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 27.27ms. Allocated memory is still 413.1MB. Free memory was 354.9MB in the beginning and 352.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * RCFGBuilder took 264.19ms. Allocated memory is still 413.1MB. Free memory was 352.8MB in the beginning and 337.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
 * TraceAbstraction took 806.97ms. Allocated memory is still 413.1MB. Free memory was 336.5MB in the beginning and 306.1MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - UnprovableResult [Line: 997]: Unable to prove that a call to reach_error is unreachable
    Unable to prove that a call to reach_error is unreachable
 Reason: overapproximation of nearbyint at line 1002. 
Possible FailurePath: 
[L1001]  FCALL      fesetround(0)
[L1002]  CALL       __VERIFIER_assert(nearbyint(2.3) == 2.0)
         VAL        [\old(cond)=0]
[L997]   COND TRUE  !(cond)
         VAL        [\old(cond)=0]
[L997]              reach_error()
         VAL        [\old(cond)=0]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 3 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 117 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 61 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-03 13:54:45,880 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...