./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/loop-1.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 61a67961
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/loop-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b0545f8921a3072195050599e45eb6fe3a423f5bd887720e0418c3666aaad9b
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m
[2024-10-14 00:33:40,607 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-14 00:33:40,664 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-10-14 00:33:40,668 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-14 00:33:40,669 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-14 00:33:40,689 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-14 00:33:40,691 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-14 00:33:40,691 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-14 00:33:40,692 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-14 00:33:40,695 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-14 00:33:40,695 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-14 00:33:40,695 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-14 00:33:40,695 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-14 00:33:40,695 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-14 00:33:40,696 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-14 00:33:40,696 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-14 00:33:40,696 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-14 00:33:40,696 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-10-14 00:33:40,696 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-14 00:33:40,696 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-10-14 00:33:40,696 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-14 00:33:40,697 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-14 00:33:40,698 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-14 00:33:40,698 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-14 00:33:40,698 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-14 00:33:40,698 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-10-14 00:33:40,698 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-14 00:33:40,698 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-14 00:33:40,699 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-14 00:33:40,699 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-14 00:33:40,699 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-14 00:33:40,700 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-14 00:33:40,700 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-14 00:33:40,700 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-14 00:33:40,700 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-14 00:33:40,700 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-14 00:33:40,701 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-14 00:33:40,701 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-14 00:33:40,701 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-14 00:33:40,701 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-14 00:33:40,701 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-14 00:33:40,701 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-14 00:33:40,701 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: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b0545f8921a3072195050599e45eb6fe3a423f5bd887720e0418c3666aaad9b
[2024-10-14 00:33:40,876 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-14 00:33:40,905 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-14 00:33:40,908 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-14 00:33:40,908 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-14 00:33:40,909 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-14 00:33:40,910 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/loop-1.c
[2024-10-14 00:33:42,187 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-14 00:33:42,329 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-14 00:33:42,330 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/loop-1.c
[2024-10-14 00:33:42,334 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/708db6e68/b19fff4f05bb43108693bf298b5d0205/FLAG10ca7a5c7
[2024-10-14 00:33:42,344 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/708db6e68/b19fff4f05bb43108693bf298b5d0205
[2024-10-14 00:33:42,345 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-14 00:33:42,346 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-14 00:33:42,347 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-14 00:33:42,347 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-14 00:33:42,351 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-14 00:33:42,351 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:33:42" (1/1) ...
[2024-10-14 00:33:42,352 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b402cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:42, skipping insertion in model container
[2024-10-14 00:33:42,352 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:33:42" (1/1) ...
[2024-10-14 00:33:42,367 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-14 00:33:42,470 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/loop-1.c[311,324]
[2024-10-14 00:33:42,479 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-14 00:33:42,486 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-14 00:33:42,493 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/loop-1.c[311,324]
[2024-10-14 00:33:42,495 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-14 00:33:42,510 INFO  L204         MainTranslator]: Completed translation
[2024-10-14 00:33:42,511 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:42 WrapperNode
[2024-10-14 00:33:42,511 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-14 00:33:42,512 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-14 00:33:42,512 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-14 00:33:42,512 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-14 00:33:42,517 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:42" (1/1) ...
[2024-10-14 00:33:42,522 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:42" (1/1) ...
[2024-10-14 00:33:42,533 INFO  L138                Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31
[2024-10-14 00:33:42,534 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-14 00:33:42,534 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-14 00:33:42,534 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-14 00:33:42,534 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-14 00:33:42,541 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:42" (1/1) ...
[2024-10-14 00:33:42,541 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:42" (1/1) ...
[2024-10-14 00:33:42,542 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:42" (1/1) ...
[2024-10-14 00:33:42,549 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].
[2024-10-14 00:33:42,549 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:42" (1/1) ...
[2024-10-14 00:33:42,549 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:42" (1/1) ...
[2024-10-14 00:33:42,551 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:42" (1/1) ...
[2024-10-14 00:33:42,553 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:42" (1/1) ...
[2024-10-14 00:33:42,553 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:42" (1/1) ...
[2024-10-14 00:33:42,554 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:42" (1/1) ...
[2024-10-14 00:33:42,555 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-14 00:33:42,556 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-14 00:33:42,556 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-14 00:33:42,556 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-14 00:33:42,556 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:42" (1/1) ...
[2024-10-14 00:33:42,560 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-14 00:33:42,568 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-14 00:33:42,580 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)
[2024-10-14 00:33:42,583 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
[2024-10-14 00:33:42,619 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-14 00:33:42,619 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-14 00:33:42,619 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-14 00:33:42,619 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-14 00:33:42,669 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-14 00:33:42,670 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-14 00:33:42,754 INFO  L?                        ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-10-14 00:33:42,754 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-14 00:33:42,778 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-14 00:33:42,779 INFO  L314             CfgBuilder]: Removed 1 assume(true) statements.
[2024-10-14 00:33:42,780 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:33:42 BoogieIcfgContainer
[2024-10-14 00:33:42,780 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-14 00:33:42,781 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-14 00:33:42,782 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-14 00:33:42,784 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-14 00:33:42,784 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:33:42" (1/3) ...
[2024-10-14 00:33:42,785 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fef2d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:33:42, skipping insertion in model container
[2024-10-14 00:33:42,785 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:42" (2/3) ...
[2024-10-14 00:33:42,786 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fef2d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:33:42, skipping insertion in model container
[2024-10-14 00:33:42,786 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:33:42" (3/3) ...
[2024-10-14 00:33:42,787 INFO  L112   eAbstractionObserver]: Analyzing ICFG loop-1.c
[2024-10-14 00:33:42,800 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-14 00:33:42,801 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-14 00:33:42,857 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-14 00:33:42,863 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;@258abd32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-14 00:33:42,863 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-14 00:33:42,866 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 00:33:42,871 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-10-14 00:33:42,871 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 00:33:42,872 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-10-14 00:33:42,873 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 00:33:42,877 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 00:33:42,878 INFO  L85        PathProgramCache]: Analyzing trace with hash 57541414, now seen corresponding path program 1 times
[2024-10-14 00:33:42,885 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-14 00:33:42,886 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885423013]
[2024-10-14 00:33:42,886 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 00:33:42,887 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-14 00:33:42,965 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-14 00:33:42,965 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-10-14 00:33:42,974 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-14 00:33:42,989 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-10-14 00:33:42,990 INFO  L325         BasicCegarLoop]: Counterexample is feasible
[2024-10-14 00:33:42,991 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-10-14 00:33:42,992 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-14 00:33:42,995 INFO  L407         BasicCegarLoop]: Path program histogram: [1]
[2024-10-14 00:33:43,003 INFO  L165   ceAbstractionStarter]: Computing trace abstraction results
[2024-10-14 00:33:43,005 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:33:43 BoogieIcfgContainer
[2024-10-14 00:33:43,005 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-10-14 00:33:43,005 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-10-14 00:33:43,005 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-10-14 00:33:43,006 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-10-14 00:33:43,006 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:33:42" (3/4) ...
[2024-10-14 00:33:43,007 INFO  L142         WitnessPrinter]: No result that supports witness generation found
[2024-10-14 00:33:43,008 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-10-14 00:33:43,009 INFO  L158              Benchmark]: Toolchain (without parser) took 662.67ms. Allocated memory is still 188.7MB. Free memory was 158.2MB in the beginning and 119.5MB in the end (delta: 38.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB.
[2024-10-14 00:33:43,009 INFO  L158              Benchmark]: CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory was 82.9MB in the beginning and 82.8MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-10-14 00:33:43,009 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 164.50ms. Allocated memory is still 188.7MB. Free memory was 158.2MB in the beginning and 146.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-10-14 00:33:43,010 INFO  L158              Benchmark]: Boogie Procedure Inliner took 21.73ms. Allocated memory is still 188.7MB. Free memory was 146.8MB in the beginning and 145.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-10-14 00:33:43,010 INFO  L158              Benchmark]: Boogie Preprocessor took 20.88ms. Allocated memory is still 188.7MB. Free memory was 145.7MB in the beginning and 144.7MB in the end (delta: 995.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-10-14 00:33:43,011 INFO  L158              Benchmark]: RCFGBuilder took 224.12ms. Allocated memory is still 188.7MB. Free memory was 144.7MB in the beginning and 133.1MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-10-14 00:33:43,011 INFO  L158              Benchmark]: TraceAbstraction took 223.26ms. Allocated memory is still 188.7MB. Free memory was 133.1MB in the beginning and 119.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-10-14 00:33:43,011 INFO  L158              Benchmark]: Witness Printer took 3.03ms. Allocated memory is still 188.7MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-10-14 00:33:43,013 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory was 82.9MB in the beginning and 82.8MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 164.50ms. Allocated memory is still 188.7MB. Free memory was 158.2MB in the beginning and 146.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 21.73ms. Allocated memory is still 188.7MB. Free memory was 146.8MB in the beginning and 145.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 20.88ms. Allocated memory is still 188.7MB. Free memory was 145.7MB in the beginning and 144.7MB in the end (delta: 995.5kB). There was no memory consumed. Max. memory is 16.1GB.
 * RCFGBuilder took 224.12ms. Allocated memory is still 188.7MB. Free memory was 144.7MB in the beginning and 133.1MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 223.26ms. Allocated memory is still 188.7MB. Free memory was 133.1MB in the beginning and 119.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
 * Witness Printer took 3.03ms. Allocated memory is still 188.7MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB.
 * 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: 4]: 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 someBinaryFLOATComparisonOperation at line 20, overapproximation of someBinaryDOUBLEComparisonOperation at line 20. 
Possible FailurePath: 
[L8]               float x, y, z;
[L10]              x = 1.f
[L11]              y = 1e7
[L12]              z = 42.f
[L14]  COND FALSE  !(x < y)
[L20]  CALL        __VERIFIER_assert(z >= 0.f && z <= 1e8)
[L4]   COND TRUE   !(cond)
[L4]               reach_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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
[2024-10-14 00:33:43,035 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...
--- End real Ultimate output ---

Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis

### Bit-precise run ###
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/loop-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b0545f8921a3072195050599e45eb6fe3a423f5bd887720e0418c3666aaad9b
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m
[2024-10-14 00:33:44,704 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-14 00:33:44,763 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-10-14 00:33:44,768 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-14 00:33:44,768 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-14 00:33:44,791 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-14 00:33:44,792 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-14 00:33:44,792 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-14 00:33:44,792 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-14 00:33:44,795 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-14 00:33:44,796 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-14 00:33:44,796 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-14 00:33:44,797 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-14 00:33:44,797 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-14 00:33:44,797 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-14 00:33:44,797 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-14 00:33:44,798 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-14 00:33:44,798 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-10-14 00:33:44,799 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-10-14 00:33:44,799 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-14 00:33:44,799 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-14 00:33:44,799 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-14 00:33:44,799 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-14 00:33:44,800 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-10-14 00:33:44,800 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-10-14 00:33:44,800 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-14 00:33:44,800 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-10-14 00:33:44,800 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-10-14 00:33:44,800 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-14 00:33:44,800 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-14 00:33:44,801 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-14 00:33:44,801 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-14 00:33:44,801 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-14 00:33:44,801 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-14 00:33:44,802 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-14 00:33:44,802 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-14 00:33:44,802 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-14 00:33:44,803 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-14 00:33:44,803 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-10-14 00:33:44,803 INFO  L153        SettingsManager]:  * Command for external solver=cvc5 --incremental --print-success --lang smt
[2024-10-14 00:33:44,803 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-14 00:33:44,803 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-14 00:33:44,803 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-14 00:33:44,804 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-14 00:33:44,804 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2024-10-14 00:33:44,804 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: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b0545f8921a3072195050599e45eb6fe3a423f5bd887720e0418c3666aaad9b
[2024-10-14 00:33:45,040 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-14 00:33:45,056 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-14 00:33:45,057 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-14 00:33:45,058 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-14 00:33:45,059 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-14 00:33:45,060 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/loop-1.c
[2024-10-14 00:33:46,273 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-14 00:33:46,419 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-14 00:33:46,419 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/loop-1.c
[2024-10-14 00:33:46,427 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9fa088e2/dea649e165e6435aa0a230c3c5f12e21/FLAGa58c8bc80
[2024-10-14 00:33:46,827 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9fa088e2/dea649e165e6435aa0a230c3c5f12e21
[2024-10-14 00:33:46,829 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-14 00:33:46,831 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-14 00:33:46,831 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-14 00:33:46,832 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-14 00:33:46,836 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-14 00:33:46,836 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:33:46" (1/1) ...
[2024-10-14 00:33:46,837 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a6bcbe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:46, skipping insertion in model container
[2024-10-14 00:33:46,839 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:33:46" (1/1) ...
[2024-10-14 00:33:46,868 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-14 00:33:46,987 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/loop-1.c[311,324]
[2024-10-14 00:33:47,004 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-14 00:33:47,017 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-14 00:33:47,028 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/loop-1.c[311,324]
[2024-10-14 00:33:47,030 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-14 00:33:47,050 INFO  L204         MainTranslator]: Completed translation
[2024-10-14 00:33:47,051 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:47 WrapperNode
[2024-10-14 00:33:47,051 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-14 00:33:47,052 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-14 00:33:47,052 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-14 00:33:47,052 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-14 00:33:47,058 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:47" (1/1) ...
[2024-10-14 00:33:47,065 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:47" (1/1) ...
[2024-10-14 00:33:47,077 INFO  L138                Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32
[2024-10-14 00:33:47,078 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-14 00:33:47,079 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-14 00:33:47,079 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-14 00:33:47,080 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-14 00:33:47,087 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:47" (1/1) ...
[2024-10-14 00:33:47,087 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:47" (1/1) ...
[2024-10-14 00:33:47,088 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:47" (1/1) ...
[2024-10-14 00:33:47,099 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].
[2024-10-14 00:33:47,099 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:47" (1/1) ...
[2024-10-14 00:33:47,100 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:47" (1/1) ...
[2024-10-14 00:33:47,107 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:47" (1/1) ...
[2024-10-14 00:33:47,109 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:47" (1/1) ...
[2024-10-14 00:33:47,110 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:47" (1/1) ...
[2024-10-14 00:33:47,110 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:47" (1/1) ...
[2024-10-14 00:33:47,112 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-14 00:33:47,114 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-14 00:33:47,114 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-14 00:33:47,114 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-14 00:33:47,115 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:47" (1/1) ...
[2024-10-14 00:33:47,120 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-14 00:33:47,128 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-14 00:33:47,140 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)
[2024-10-14 00:33:47,145 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
[2024-10-14 00:33:47,177 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-14 00:33:47,178 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-14 00:33:47,178 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-14 00:33:47,178 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-10-14 00:33:47,233 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-14 00:33:47,235 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-14 00:33:47,615 INFO  L?                        ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-10-14 00:33:47,615 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-14 00:33:47,644 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-14 00:33:47,645 INFO  L314             CfgBuilder]: Removed 1 assume(true) statements.
[2024-10-14 00:33:47,645 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:33:47 BoogieIcfgContainer
[2024-10-14 00:33:47,646 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-14 00:33:47,648 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-14 00:33:47,649 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-14 00:33:47,651 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-14 00:33:47,651 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:33:46" (1/3) ...
[2024-10-14 00:33:47,652 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ecbf14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:33:47, skipping insertion in model container
[2024-10-14 00:33:47,653 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:33:47" (2/3) ...
[2024-10-14 00:33:47,653 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ecbf14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:33:47, skipping insertion in model container
[2024-10-14 00:33:47,653 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:33:47" (3/3) ...
[2024-10-14 00:33:47,654 INFO  L112   eAbstractionObserver]: Analyzing ICFG loop-1.c
[2024-10-14 00:33:47,669 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-14 00:33:47,670 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-14 00:33:47,713 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-14 00:33:47,720 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;@5870278, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-14 00:33:47,720 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-14 00:33:47,724 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 00:33:47,727 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-10-14 00:33:47,728 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 00:33:47,728 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-10-14 00:33:47,728 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 00:33:47,732 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 00:33:47,733 INFO  L85        PathProgramCache]: Analyzing trace with hash 57541414, now seen corresponding path program 1 times
[2024-10-14 00:33:47,741 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-10-14 00:33:47,742 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24575886]
[2024-10-14 00:33:47,742 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 00:33:47,742 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-10-14 00:33:47,743 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-10-14 00:33:47,745 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-10-14 00:33:47,746 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2024-10-14 00:33:47,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-14 00:33:47,820 INFO  L255         TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-10-14 00:33:47,823 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-14 00:33:47,898 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 00:33:47,898 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-10-14 00:33:47,901 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-10-14 00:33:47,901 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24575886]
[2024-10-14 00:33:47,902 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [24575886] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-14 00:33:47,902 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-14 00:33:47,903 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-14 00:33:47,904 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475940088]
[2024-10-14 00:33:47,905 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-14 00:33:47,908 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-14 00:33:47,908 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-10-14 00:33:47,927 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-14 00:33:47,927 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-14 00:33:47,929 INFO  L87              Difference]: Start difference. First operand  has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 00:33:48,102 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-14 00:33:48,103 INFO  L93              Difference]: Finished difference Result 15 states and 19 transitions.
[2024-10-14 00:33:48,104 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-14 00:33:48,105 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5
[2024-10-14 00:33:48,105 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-14 00:33:48,109 INFO  L225             Difference]: With dead ends: 15
[2024-10-14 00:33:48,110 INFO  L226             Difference]: Without dead ends: 7
[2024-10-14 00:33:48,112 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-14 00:33:48,116 INFO  L432           NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-10-14 00:33:48,117 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-10-14 00:33:48,129 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7 states.
[2024-10-14 00:33:48,135 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7.
[2024-10-14 00:33:48,137 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 00:33:48,138 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions.
[2024-10-14 00:33:48,139 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5
[2024-10-14 00:33:48,139 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-14 00:33:48,139 INFO  L471      AbstractCegarLoop]: Abstraction has 7 states and 7 transitions.
[2024-10-14 00:33:48,139 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 00:33:48,139 INFO  L276                IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions.
[2024-10-14 00:33:48,139 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-10-14 00:33:48,139 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 00:33:48,139 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-10-14 00:33:48,143 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2024-10-14 00:33:48,340 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-10-14 00:33:48,340 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 00:33:48,341 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 00:33:48,341 INFO  L85        PathProgramCache]: Analyzing trace with hash 1785449205, now seen corresponding path program 1 times
[2024-10-14 00:33:48,341 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-10-14 00:33:48,341 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837538869]
[2024-10-14 00:33:48,342 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 00:33:48,342 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-10-14 00:33:48,342 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-10-14 00:33:48,343 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-10-14 00:33:48,344 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2024-10-14 00:33:48,419 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-14 00:33:48,422 INFO  L255         TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-10-14 00:33:48,422 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-14 00:33:48,483 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 00:33:48,483 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-10-14 00:33:51,608 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 00:33:51,608 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-10-14 00:33:51,609 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837538869]
[2024-10-14 00:33:51,609 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837538869] provided 0 perfect and 2 imperfect interpolant sequences
[2024-10-14 00:33:51,609 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-10-14 00:33:51,609 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5
[2024-10-14 00:33:51,609 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046222143]
[2024-10-14 00:33:51,609 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-10-14 00:33:51,610 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-10-14 00:33:51,610 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-10-14 00:33:51,611 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-10-14 00:33:51,611 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-10-14 00:33:51,611 INFO  L87              Difference]: Start difference. First operand 7 states and 7 transitions. Second operand  has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 00:33:52,425 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-14 00:33:52,426 INFO  L93              Difference]: Finished difference Result 14 states and 16 transitions.
[2024-10-14 00:33:52,429 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-10-14 00:33:52,429 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-10-14 00:33:52,429 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-14 00:33:52,429 INFO  L225             Difference]: With dead ends: 14
[2024-10-14 00:33:52,429 INFO  L226             Difference]: Without dead ends: 10
[2024-10-14 00:33:52,430 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-10-14 00:33:52,431 INFO  L432           NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-10-14 00:33:52,431 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-10-14 00:33:52,431 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10 states.
[2024-10-14 00:33:52,433 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10.
[2024-10-14 00:33:52,433 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 00:33:52,433 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions.
[2024-10-14 00:33:52,433 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6
[2024-10-14 00:33:52,433 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-14 00:33:52,433 INFO  L471      AbstractCegarLoop]: Abstraction has 10 states and 10 transitions.
[2024-10-14 00:33:52,434 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 00:33:52,434 INFO  L276                IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions.
[2024-10-14 00:33:52,434 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-10-14 00:33:52,434 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 00:33:52,434 INFO  L215           NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1]
[2024-10-14 00:33:52,439 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2024-10-14 00:33:52,635 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-10-14 00:33:52,636 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 00:33:52,636 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 00:33:52,636 INFO  L85        PathProgramCache]: Analyzing trace with hash -1198981402, now seen corresponding path program 2 times
[2024-10-14 00:33:52,637 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-10-14 00:33:52,637 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423301095]
[2024-10-14 00:33:52,637 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-10-14 00:33:52,637 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-10-14 00:33:52,637 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-10-14 00:33:52,639 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-10-14 00:33:52,640 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2024-10-14 00:33:52,842 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-10-14 00:33:52,842 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-10-14 00:33:52,850 INFO  L255         TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-10-14 00:33:52,851 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-14 00:33:54,718 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 00:33:54,719 INFO  L311         TraceCheckSpWp]: Computing backward predicates...