/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...