./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 3289d67d
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i -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 aa004690edfde808b1aefac96308d2a9e2df62056aeddc89c51bd2015ab29125
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m
[2024-11-16 04:59:42,168 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-16 04:59:42,243 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-16 04:59:42,247 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-16 04:59:42,247 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-16 04:59:42,270 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-16 04:59:42,271 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-16 04:59:42,271 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-16 04:59:42,272 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-16 04:59:42,273 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-16 04:59:42,274 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-16 04:59:42,274 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-16 04:59:42,275 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-16 04:59:42,278 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-16 04:59:42,279 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-16 04:59:42,279 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-16 04:59:42,280 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-16 04:59:42,280 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-16 04:59:42,280 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-16 04:59:42,280 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-16 04:59:42,280 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-16 04:59:42,281 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-16 04:59:42,281 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-16 04:59:42,281 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-16 04:59:42,283 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-16 04:59:42,283 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-16 04:59:42,283 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-16 04:59:42,284 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-16 04:59:42,284 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-16 04:59:42,284 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-16 04:59:42,285 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-16 04:59:42,285 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-16 04:59:42,285 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-16 04:59:42,285 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-16 04:59:42,286 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-16 04:59:42,286 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-16 04:59:42,286 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-16 04:59:42,287 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-16 04:59:42,287 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-16 04:59:42,288 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-16 04:59:42,288 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-16 04:59:42,288 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-16 04:59:42,288 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 -> aa004690edfde808b1aefac96308d2a9e2df62056aeddc89c51bd2015ab29125
[2024-11-16 04:59:42,521 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-16 04:59:42,546 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-16 04:59:42,550 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-16 04:59:42,551 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-16 04:59:42,551 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-16 04:59:42,552 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i
[2024-11-16 04:59:43,954 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-16 04:59:44,146 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-16 04:59:44,147 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i
[2024-11-16 04:59:44,158 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90c2df4b3/d06d624688a84ee29ba319c66b3fce7f/FLAG8e57a5253
[2024-11-16 04:59:44,526 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90c2df4b3/d06d624688a84ee29ba319c66b3fce7f
[2024-11-16 04:59:44,529 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-16 04:59:44,530 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-16 04:59:44,532 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-16 04:59:44,532 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-16 04:59:44,536 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-16 04:59:44,537 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:59:44" (1/1) ...
[2024-11-16 04:59:44,538 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226eb561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:44, skipping insertion in model container
[2024-11-16 04:59:44,538 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:59:44" (1/1) ...
[2024-11-16 04:59:44,554 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-16 04:59:44,718 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i[808,821]
[2024-11-16 04:59:44,730 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-16 04:59:44,738 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-16 04:59:44,751 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i[808,821]
[2024-11-16 04:59:44,754 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-16 04:59:44,768 INFO  L204         MainTranslator]: Completed translation
[2024-11-16 04:59:44,768 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:44 WrapperNode
[2024-11-16 04:59:44,768 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-16 04:59:44,769 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-16 04:59:44,769 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-16 04:59:44,770 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-16 04:59:44,776 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:44" (1/1) ...
[2024-11-16 04:59:44,783 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:44" (1/1) ...
[2024-11-16 04:59:44,803 INFO  L138                Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24
[2024-11-16 04:59:44,803 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-16 04:59:44,804 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-16 04:59:44,804 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-16 04:59:44,805 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-16 04:59:44,814 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:44" (1/1) ...
[2024-11-16 04:59:44,814 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:44" (1/1) ...
[2024-11-16 04:59:44,816 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:44" (1/1) ...
[2024-11-16 04:59:44,826 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].
[2024-11-16 04:59:44,826 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:44" (1/1) ...
[2024-11-16 04:59:44,826 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:44" (1/1) ...
[2024-11-16 04:59:44,829 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:44" (1/1) ...
[2024-11-16 04:59:44,833 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:44" (1/1) ...
[2024-11-16 04:59:44,834 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:44" (1/1) ...
[2024-11-16 04:59:44,834 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:44" (1/1) ...
[2024-11-16 04:59:44,836 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-16 04:59:44,836 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2024-11-16 04:59:44,836 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2024-11-16 04:59:44,837 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2024-11-16 04:59:44,840 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:44" (1/1) ...
[2024-11-16 04:59:44,845 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-16 04:59:44,856 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-16 04:59:44,871 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)
[2024-11-16 04:59:44,876 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
[2024-11-16 04:59:44,923 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-16 04:59:44,924 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-16 04:59:44,924 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-16 04:59:44,924 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-16 04:59:44,987 INFO  L256             CfgBuilder]: Building ICFG
[2024-11-16 04:59:44,989 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-16 04:59:45,071 INFO  L?                        ?]: Removed 7 outVars from TransFormulas that were not future-live.
[2024-11-16 04:59:45,072 INFO  L307             CfgBuilder]: Performing block encoding
[2024-11-16 04:59:45,080 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-16 04:59:45,081 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-16 04:59:45,081 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:59:45 BoogieIcfgContainer
[2024-11-16 04:59:45,081 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2024-11-16 04:59:45,083 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-16 04:59:45,083 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-16 04:59:45,086 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-16 04:59:45,086 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:59:44" (1/3) ...
[2024-11-16 04:59:45,086 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a7f163f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:59:45, skipping insertion in model container
[2024-11-16 04:59:45,087 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:44" (2/3) ...
[2024-11-16 04:59:45,087 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a7f163f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:59:45, skipping insertion in model container
[2024-11-16 04:59:45,087 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:59:45" (3/3) ...
[2024-11-16 04:59:45,088 INFO  L112   eAbstractionObserver]: Analyzing ICFG Double_div_bad.i
[2024-11-16 04:59:45,104 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-16 04:59:45,104 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-16 04:59:45,151 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-16 04:59:45,162 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;@3baacef8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-16 04:59:45,163 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-16 04:59:45,167 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 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)
[2024-11-16 04:59:45,172 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-16 04:59:45,173 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-16 04:59:45,174 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-16 04:59:45,176 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-16 04:59:45,182 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-16 04:59:45,183 INFO  L85        PathProgramCache]: Analyzing trace with hash 1039785133, now seen corresponding path program 1 times
[2024-11-16 04:59:45,191 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-16 04:59:45,192 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966399472]
[2024-11-16 04:59:45,192 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-16 04:59:45,192 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-16 04:59:45,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 04:59:45,321 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-16 04:59:45,321 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-16 04:59:45,322 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966399472]
[2024-11-16 04:59:45,323 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966399472] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-16 04:59:45,323 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-16 04:59:45,323 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-16 04:59:45,325 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756220319]
[2024-11-16 04:59:45,325 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-16 04:59:45,352 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-16 04:59:45,353 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-16 04:59:45,375 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-16 04:59:45,375 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-16 04:59:45,377 INFO  L87              Difference]: Start difference. First operand  has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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)
[2024-11-16 04:59:45,388 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-16 04:59:45,388 INFO  L93              Difference]: Finished difference Result 23 states and 25 transitions.
[2024-11-16 04:59:45,389 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-16 04:59:45,390 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) Word has length 7
[2024-11-16 04:59:45,390 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-16 04:59:45,395 INFO  L225             Difference]: With dead ends: 23
[2024-11-16 04:59:45,395 INFO  L226             Difference]: Without dead ends: 9
[2024-11-16 04:59:45,397 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-16 04:59:45,399 INFO  L432           NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-16 04:59:45,400 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-16 04:59:45,413 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2024-11-16 04:59:45,422 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2024-11-16 04:59:45,423 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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)
[2024-11-16 04:59:45,424 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2024-11-16 04:59:45,425 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7
[2024-11-16 04:59:45,425 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-16 04:59:45,425 INFO  L471      AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2024-11-16 04:59:45,425 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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)
[2024-11-16 04:59:45,425 INFO  L276                IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2024-11-16 04:59:45,426 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-16 04:59:45,426 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-16 04:59:45,426 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-16 04:59:45,426 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-16 04:59:45,426 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-16 04:59:45,427 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-16 04:59:45,427 INFO  L85        PathProgramCache]: Analyzing trace with hash 2141846522, now seen corresponding path program 1 times
[2024-11-16 04:59:45,427 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-16 04:59:45,427 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920914901]
[2024-11-16 04:59:45,427 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-16 04:59:45,428 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-16 04:59:45,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-16 04:59:45,448 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-16 04:59:45,456 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-16 04:59:45,469 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-16 04:59:45,469 INFO  L325         BasicCegarLoop]: Counterexample is feasible
[2024-11-16 04:59:45,471 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-16 04:59:45,472 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-16 04:59:45,475 INFO  L407         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-16 04:59:45,483 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-16 04:59:45,485 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:59:45 BoogieIcfgContainer
[2024-11-16 04:59:45,486 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-16 04:59:45,486 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-16 04:59:45,486 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-11-16 04:59:45,486 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-11-16 04:59:45,487 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:59:45" (3/4) ...
[2024-11-16 04:59:45,489 INFO  L146         WitnessPrinter]: No result that supports witness generation found
[2024-11-16 04:59:45,490 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-16 04:59:45,490 INFO  L158              Benchmark]: Toolchain (without parser) took 960.04ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 100.8MB in the beginning and 162.3MB in the end (delta: -61.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-16 04:59:45,491 INFO  L158              Benchmark]: CDTParser took 0.18ms. Allocated memory is still 155.2MB. Free memory was 114.3MB in the beginning and 114.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-16 04:59:45,491 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 237.13ms. Allocated memory is still 155.2MB. Free memory was 100.5MB in the beginning and 87.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-16 04:59:45,492 INFO  L158              Benchmark]: Boogie Procedure Inliner took 34.22ms. Allocated memory is still 155.2MB. Free memory was 87.8MB in the beginning and 86.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-16 04:59:45,492 INFO  L158              Benchmark]: Boogie Preprocessor took 31.55ms. Allocated memory is still 155.2MB. Free memory was 86.5MB in the beginning and 84.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-16 04:59:45,493 INFO  L158              Benchmark]: IcfgBuilder took 244.95ms. Allocated memory is still 155.2MB. Free memory was 84.8MB in the beginning and 75.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-16 04:59:45,493 INFO  L158              Benchmark]: TraceAbstraction took 402.55ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 74.9MB in the beginning and 162.3MB in the end (delta: -87.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-16 04:59:45,494 INFO  L158              Benchmark]: Witness Printer took 3.47ms. Allocated memory is still 201.3MB. Free memory is still 162.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-16 04:59:45,496 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.18ms. Allocated memory is still 155.2MB. Free memory was 114.3MB in the beginning and 114.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 237.13ms. Allocated memory is still 155.2MB. Free memory was 100.5MB in the beginning and 87.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 34.22ms. Allocated memory is still 155.2MB. Free memory was 87.8MB in the beginning and 86.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 31.55ms. Allocated memory is still 155.2MB. Free memory was 86.5MB in the beginning and 84.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * IcfgBuilder took 244.95ms. Allocated memory is still 155.2MB. Free memory was 84.8MB in the beginning and 75.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * TraceAbstraction took 402.55ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 74.9MB in the beginning and 162.3MB in the end (delta: -87.3MB). There was no memory consumed. Max. memory is 16.1GB.
 * Witness Printer took 3.47ms. Allocated memory is still 201.3MB. Free memory is still 162.3MB. 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: 13]: 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 someBinaryDOUBLEComparisonOperation at line 29, overapproximation of someBinaryArithmeticDOUBLEoperation at line 21. 
Possible FailurePath: 
[L20]              double x = 1.0;
[L21]              double x1 = x/1.6;
[L23]  COND FALSE  !(x1 != x)
[L29]  CALL        __VERIFIER_assert(x == 0)
[L13]  COND TRUE   !(cond)
[L13]              reach_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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
[2024-11-16 04:59:45,524 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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/11.0.12-open/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 ../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i -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 aa004690edfde808b1aefac96308d2a9e2df62056aeddc89c51bd2015ab29125
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m
[2024-11-16 04:59:47,706 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-16 04:59:47,792 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-16 04:59:47,799 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-16 04:59:47,799 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-16 04:59:47,822 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-16 04:59:47,823 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-16 04:59:47,823 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-16 04:59:47,824 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-16 04:59:47,825 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-16 04:59:47,825 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-16 04:59:47,826 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-16 04:59:47,826 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-16 04:59:47,827 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-16 04:59:47,827 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-16 04:59:47,829 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-16 04:59:47,829 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-16 04:59:47,829 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-16 04:59:47,830 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-16 04:59:47,833 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-16 04:59:47,833 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-16 04:59:47,834 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-16 04:59:47,834 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-16 04:59:47,834 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-16 04:59:47,834 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-16 04:59:47,834 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-16 04:59:47,835 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-16 04:59:47,835 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-16 04:59:47,835 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-16 04:59:47,835 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-16 04:59:47,836 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-16 04:59:47,836 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-16 04:59:47,836 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-16 04:59:47,836 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-16 04:59:47,836 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-16 04:59:47,837 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-16 04:59:47,837 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-16 04:59:47,837 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-16 04:59:47,837 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-16 04:59:47,837 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-16 04:59:47,838 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-16 04:59:47,838 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-16 04:59:47,838 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-16 04:59:47,839 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-16 04:59:47,839 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 -> aa004690edfde808b1aefac96308d2a9e2df62056aeddc89c51bd2015ab29125
[2024-11-16 04:59:48,176 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-16 04:59:48,201 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-16 04:59:48,206 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-16 04:59:48,207 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-16 04:59:48,208 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-16 04:59:48,210 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i
[2024-11-16 04:59:49,753 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-16 04:59:49,939 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-16 04:59:49,939 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i
[2024-11-16 04:59:49,945 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/852bf1296/b65bc8e972324aeea687b0fb0a0304de/FLAGa01a81b60
[2024-11-16 04:59:49,956 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/852bf1296/b65bc8e972324aeea687b0fb0a0304de
[2024-11-16 04:59:49,958 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-16 04:59:49,959 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-16 04:59:49,960 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-16 04:59:49,960 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-16 04:59:49,964 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-16 04:59:49,965 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:59:49" (1/1) ...
[2024-11-16 04:59:49,965 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a23de5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:49, skipping insertion in model container
[2024-11-16 04:59:49,965 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:59:49" (1/1) ...
[2024-11-16 04:59:49,981 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-16 04:59:50,150 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i[808,821]
[2024-11-16 04:59:50,164 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-16 04:59:50,179 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-16 04:59:50,192 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i[808,821]
[2024-11-16 04:59:50,195 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-16 04:59:50,214 INFO  L204         MainTranslator]: Completed translation
[2024-11-16 04:59:50,215 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:50 WrapperNode
[2024-11-16 04:59:50,215 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-16 04:59:50,216 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-16 04:59:50,216 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-16 04:59:50,216 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-16 04:59:50,223 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:50" (1/1) ...
[2024-11-16 04:59:50,232 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:50" (1/1) ...
[2024-11-16 04:59:50,246 INFO  L138                Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25
[2024-11-16 04:59:50,247 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-16 04:59:50,248 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-16 04:59:50,248 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-16 04:59:50,249 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-16 04:59:50,257 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:50" (1/1) ...
[2024-11-16 04:59:50,258 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:50" (1/1) ...
[2024-11-16 04:59:50,260 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:50" (1/1) ...
[2024-11-16 04:59:50,273 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].
[2024-11-16 04:59:50,274 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:50" (1/1) ...
[2024-11-16 04:59:50,274 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:50" (1/1) ...
[2024-11-16 04:59:50,280 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:50" (1/1) ...
[2024-11-16 04:59:50,281 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:50" (1/1) ...
[2024-11-16 04:59:50,283 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:50" (1/1) ...
[2024-11-16 04:59:50,287 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:50" (1/1) ...
[2024-11-16 04:59:50,289 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-16 04:59:50,293 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2024-11-16 04:59:50,294 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2024-11-16 04:59:50,294 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2024-11-16 04:59:50,295 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:50" (1/1) ...
[2024-11-16 04:59:50,300 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-16 04:59:50,311 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-16 04:59:50,327 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)
[2024-11-16 04:59:50,331 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
[2024-11-16 04:59:50,380 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-16 04:59:50,380 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-16 04:59:50,380 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-16 04:59:50,380 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-16 04:59:50,451 INFO  L256             CfgBuilder]: Building ICFG
[2024-11-16 04:59:50,455 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-16 04:59:54,756 INFO  L?                        ?]: Removed 7 outVars from TransFormulas that were not future-live.
[2024-11-16 04:59:54,757 INFO  L307             CfgBuilder]: Performing block encoding
[2024-11-16 04:59:54,769 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-16 04:59:54,770 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-16 04:59:54,770 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:59:54 BoogieIcfgContainer
[2024-11-16 04:59:54,771 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2024-11-16 04:59:54,773 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-16 04:59:54,774 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-16 04:59:54,777 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-16 04:59:54,777 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:59:49" (1/3) ...
[2024-11-16 04:59:54,778 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a022209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:59:54, skipping insertion in model container
[2024-11-16 04:59:54,779 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:59:50" (2/3) ...
[2024-11-16 04:59:54,780 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a022209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:59:54, skipping insertion in model container
[2024-11-16 04:59:54,781 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:59:54" (3/3) ...
[2024-11-16 04:59:54,782 INFO  L112   eAbstractionObserver]: Analyzing ICFG Double_div_bad.i
[2024-11-16 04:59:54,799 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-16 04:59:54,800 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-16 04:59:54,862 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-16 04:59:54,869 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;@570ab777, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-16 04:59:54,869 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-16 04:59:54,874 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 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)
[2024-11-16 04:59:54,880 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-16 04:59:54,880 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-16 04:59:54,881 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-16 04:59:54,882 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-16 04:59:54,888 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-16 04:59:54,889 INFO  L85        PathProgramCache]: Analyzing trace with hash 1039785133, now seen corresponding path program 1 times
[2024-11-16 04:59:54,900 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-16 04:59:54,900 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636761397]
[2024-11-16 04:59:54,901 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-16 04:59:54,901 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
[2024-11-16 04:59:54,901 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-16 04:59:54,904 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)
[2024-11-16 04:59:54,935 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
[2024-11-16 04:59:55,459 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 04:59:55,484 INFO  L255         TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-16 04:59:55,487 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-16 04:59:55,501 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-16 04:59:55,501 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-16 04:59:55,502 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-16 04:59:55,502 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636761397]
[2024-11-16 04:59:55,503 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636761397] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-16 04:59:55,503 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-16 04:59:55,503 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-16 04:59:55,505 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124327283]
[2024-11-16 04:59:55,506 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-16 04:59:55,510 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-16 04:59:55,510 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-16 04:59:55,537 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-16 04:59:55,538 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-16 04:59:55,540 INFO  L87              Difference]: Start difference. First operand  has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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)
[2024-11-16 04:59:55,550 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-16 04:59:55,551 INFO  L93              Difference]: Finished difference Result 23 states and 25 transitions.
[2024-11-16 04:59:55,552 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-16 04:59:55,553 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) Word has length 7
[2024-11-16 04:59:55,553 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-16 04:59:55,559 INFO  L225             Difference]: With dead ends: 23
[2024-11-16 04:59:55,559 INFO  L226             Difference]: Without dead ends: 9
[2024-11-16 04:59:55,562 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-16 04:59:55,565 INFO  L432           NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-16 04:59:55,566 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-16 04:59:55,581 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2024-11-16 04:59:55,590 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2024-11-16 04:59:55,591 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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)
[2024-11-16 04:59:55,591 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2024-11-16 04:59:55,593 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7
[2024-11-16 04:59:55,593 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-16 04:59:55,593 INFO  L471      AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2024-11-16 04:59:55,593 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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)
[2024-11-16 04:59:55,593 INFO  L276                IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2024-11-16 04:59:55,594 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-16 04:59:55,594 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-16 04:59:55,594 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-16 04:59:55,618 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 (2)] Forceful destruction successful, exit code 0
[2024-11-16 04:59:55,795 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
[2024-11-16 04:59:55,795 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-16 04:59:55,796 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-16 04:59:55,796 INFO  L85        PathProgramCache]: Analyzing trace with hash 2141846522, now seen corresponding path program 1 times
[2024-11-16 04:59:55,797 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-16 04:59:55,797 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228559689]
[2024-11-16 04:59:55,797 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-16 04:59:55,798 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
[2024-11-16 04:59:55,798 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-16 04:59:55,801 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)
[2024-11-16 04:59:55,802 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
[2024-11-16 04:59:56,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 04:59:56,404 INFO  L255         TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-16 04:59:56,405 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-16 04:59:58,130 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-16 04:59:58,131 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-16 04:59:58,131 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-16 04:59:58,131 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228559689]
[2024-11-16 04:59:58,131 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1228559689] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-16 04:59:58,132 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-16 04:59:58,132 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-16 04:59:58,132 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510630769]
[2024-11-16 04:59:58,132 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-16 04:59:58,133 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-16 04:59:58,134 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-16 04:59:58,134 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-16 04:59:58,134 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-16 04:59:58,135 INFO  L87              Difference]: Start difference. First operand 9 states and 9 transitions. Second operand  has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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)
[2024-11-16 05:00:01,141 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-16 05:00:01,142 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-16 05:00:01,142 INFO  L93              Difference]: Finished difference Result 16 states and 16 transitions.
[2024-11-16 05:00:01,171 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-16 05:00:01,172 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8
[2024-11-16 05:00:01,172 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-16 05:00:01,172 INFO  L225             Difference]: With dead ends: 16
[2024-11-16 05:00:01,172 INFO  L226             Difference]: Without dead ends: 11
[2024-11-16 05:00:01,173 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-16 05:00:01,174 INFO  L432           NwaCegarLoop]: 6 mSDtfsCounter, 10 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2024-11-16 05:00:01,174 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 11 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2024-11-16 05:00:01,176 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11 states.
[2024-11-16 05:00:01,178 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11.
[2024-11-16 05:00:01,179 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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)
[2024-11-16 05:00:01,179 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions.
[2024-11-16 05:00:01,180 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8
[2024-11-16 05:00:01,180 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-16 05:00:01,180 INFO  L471      AbstractCegarLoop]: Abstraction has 11 states and 11 transitions.
[2024-11-16 05:00:01,180 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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)
[2024-11-16 05:00:01,180 INFO  L276                IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions.
[2024-11-16 05:00:01,180 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-16 05:00:01,180 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-16 05:00:01,181 INFO  L215           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-16 05:00:01,196 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
[2024-11-16 05:00:01,381 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
[2024-11-16 05:00:01,382 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-16 05:00:01,382 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-16 05:00:01,382 INFO  L85        PathProgramCache]: Analyzing trace with hash -1347855719, now seen corresponding path program 1 times
[2024-11-16 05:00:01,383 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-16 05:00:01,383 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539908547]
[2024-11-16 05:00:01,383 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-16 05:00:01,383 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
[2024-11-16 05:00:01,383 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-16 05:00:01,385 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)
[2024-11-16 05:00:01,386 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
[2024-11-16 05:00:02,512 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-16 05:00:02,554 INFO  L255         TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-16 05:00:02,555 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-16 05:00:06,758 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-16 05:00:06,758 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-16 05:00:46,013 WARN  L286               SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-16 05:00:50,159 WARN  L851   $PredicateComparison]: unable to prove that (not (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (let ((.cse0 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse1))) (fp.eq (fp.div c_currentRoundingMode .cse0 .cse1) .cse0)))) is different from false
[2024-11-16 05:00:54,301 WARN  L873   $PredicateComparison]: unable to prove that (not (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (let ((.cse0 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse1))) (fp.eq (fp.div c_currentRoundingMode .cse0 .cse1) .cse0)))) is different from true
[2024-11-16 05:00:54,302 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-16 05:00:54,302 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-16 05:00:54,302 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539908547]
[2024-11-16 05:00:54,302 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539908547] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-16 05:00:54,303 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-16 05:00:54,303 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2024-11-16 05:00:54,303 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17565078]
[2024-11-16 05:00:54,303 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-16 05:00:54,303 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-16 05:00:54,303 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-16 05:00:54,304 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-16 05:00:54,304 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=27, Unknown=3, NotChecked=10, Total=56
[2024-11-16 05:00:54,305 INFO  L87              Difference]: Start difference. First operand 11 states and 11 transitions. Second operand  has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 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)
[2024-11-16 05:00:58,674 WARN  L873   $PredicateComparison]: unable to prove that (and (not (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 8.0 5.0)))) (let ((.cse0 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) .cse1))) (fp.eq (fp.div c_currentRoundingMode .cse0 .cse1) .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true
[2024-11-16 05:01:08,502 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []