/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-benchs/drift_tenth.c.p+cfa-reducer.c


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 09:18:03,117 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 09:18:03,190 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-06 09:18:03,195 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 09:18:03,196 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 09:18:03,223 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 09:18:03,224 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 09:18:03,224 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 09:18:03,225 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 09:18:03,225 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 09:18:03,225 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 09:18:03,226 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 09:18:03,226 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 09:18:03,230 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 09:18:03,230 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 09:18:03,230 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 09:18:03,230 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 09:18:03,231 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 09:18:03,231 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 09:18:03,231 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 09:18:03,231 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 09:18:03,232 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 09:18:03,232 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 09:18:03,232 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 09:18:03,232 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 09:18:03,232 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 09:18:03,233 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 09:18:03,233 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 09:18:03,233 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 09:18:03,233 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 09:18:03,234 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 09:18:03,234 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 09:18:03,234 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 09:18:03,234 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 09:18:03,234 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 09:18:03,235 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 09:18:03,235 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 09:18:03,238 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 09:18:03,238 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 09:18:03,238 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 09:18:03,238 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 09:18:03,239 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 09:18:03,239 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 09:18:03,239 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 09:18:03,239 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 09:18:03,482 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 09:18:03,507 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 09:18:03,510 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 09:18:03,511 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 09:18:03,511 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 09:18:03,512 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/drift_tenth.c.p+cfa-reducer.c
[2024-11-06 09:18:04,969 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 09:18:05,144 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 09:18:05,144 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/drift_tenth.c.p+cfa-reducer.c
[2024-11-06 09:18:05,151 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab8c9c604/1ae0f57c102b44fc8fa3f76e085fe479/FLAG095db4789
[2024-11-06 09:18:05,543 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab8c9c604/1ae0f57c102b44fc8fa3f76e085fe479
[2024-11-06 09:18:05,545 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 09:18:05,547 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 09:18:05,549 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 09:18:05,549 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 09:18:05,555 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 09:18:05,556 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:18:05" (1/1) ...
[2024-11-06 09:18:05,557 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48ebd065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:05, skipping insertion in model container
[2024-11-06 09:18:05,557 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:18:05" (1/1) ...
[2024-11-06 09:18:05,576 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 09:18:05,754 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/drift_tenth.c.p+cfa-reducer.c[721,734]
[2024-11-06 09:18:05,760 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 09:18:05,771 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 09:18:05,784 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/drift_tenth.c.p+cfa-reducer.c[721,734]
[2024-11-06 09:18:05,784 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 09:18:05,797 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 09:18:05,798 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:05 WrapperNode
[2024-11-06 09:18:05,798 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 09:18:05,799 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 09:18:05,799 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 09:18:05,799 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 09:18:05,805 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:05" (1/1) ...
[2024-11-06 09:18:05,812 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:05" (1/1) ...
[2024-11-06 09:18:05,823 INFO  L138                Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31
[2024-11-06 09:18:05,824 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 09:18:05,824 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 09:18:05,825 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 09:18:05,825 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 09:18:05,831 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:05" (1/1) ...
[2024-11-06 09:18:05,831 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:05" (1/1) ...
[2024-11-06 09:18:05,835 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:05" (1/1) ...
[2024-11-06 09:18:05,843 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-06 09:18:05,843 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:05" (1/1) ...
[2024-11-06 09:18:05,843 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:05" (1/1) ...
[2024-11-06 09:18:05,848 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:05" (1/1) ...
[2024-11-06 09:18:05,850 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:05" (1/1) ...
[2024-11-06 09:18:05,853 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:05" (1/1) ...
[2024-11-06 09:18:05,854 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:05" (1/1) ...
[2024-11-06 09:18:05,856 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 09:18:05,859 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 09:18:05,859 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 09:18:05,859 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 09:18:05,860 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:05" (1/1) ...
[2024-11-06 09:18:05,864 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 09:18:05,872 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 09:18:05,885 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-06 09:18:05,887 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-06 09:18:05,908 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 09:18:05,909 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 09:18:05,909 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 09:18:05,909 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 09:18:05,957 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 09:18:05,959 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 09:18:06,117 INFO  L?                        ?]: Removed 7 outVars from TransFormulas that were not future-live.
[2024-11-06 09:18:06,117 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 09:18:06,126 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 09:18:06,126 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-06 09:18:06,126 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:18:06 BoogieIcfgContainer
[2024-11-06 09:18:06,126 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 09:18:06,128 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 09:18:06,129 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 09:18:06,131 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 09:18:06,132 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:18:05" (1/3) ...
[2024-11-06 09:18:06,132 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e25a6c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:18:06, skipping insertion in model container
[2024-11-06 09:18:06,132 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:18:05" (2/3) ...
[2024-11-06 09:18:06,133 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e25a6c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:18:06, skipping insertion in model container
[2024-11-06 09:18:06,133 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:18:06" (3/3) ...
[2024-11-06 09:18:06,134 INFO  L112   eAbstractionObserver]: Analyzing ICFG drift_tenth.c.p+cfa-reducer.c
[2024-11-06 09:18:06,147 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 09:18:06,147 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 09:18:06,207 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 09:18:06,212 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;@59a4e905, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 09:18:06,213 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 09:18:06,216 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 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)
[2024-11-06 09:18:06,220 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-11-06 09:18:06,220 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 09:18:06,221 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-11-06 09:18:06,221 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 09:18:06,225 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 09:18:06,225 INFO  L85        PathProgramCache]: Analyzing trace with hash 28696774, now seen corresponding path program 1 times
[2024-11-06 09:18:06,235 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 09:18:06,235 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550265014]
[2024-11-06 09:18:06,236 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 09:18:06,236 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
[2024-11-06 09:18:06,236 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 09:18:06,239 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)
[2024-11-06 09:18:06,241 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
[2024-11-06 09:18:06,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 09:18:06,321 INFO  L255         TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-06 09:18:06,326 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 09:18:06,371 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 09:18:06,371 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 09:18:06,371 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 09:18:06,372 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550265014]
[2024-11-06 09:18:06,372 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550265014] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 09:18:06,372 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 09:18:06,373 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-06 09:18:06,374 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980111782]
[2024-11-06 09:18:06,375 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 09:18:06,378 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-06 09:18:06,378 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 09:18:06,395 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-06 09:18:06,395 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 09:18:06,397 INFO  L87              Difference]: Start difference. First operand  has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 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), 3 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)
[2024-11-06 09:18:06,509 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 09:18:06,509 INFO  L93              Difference]: Finished difference Result 16 states and 18 transitions.
[2024-11-06 09:18:06,510 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-06 09:18:06,511 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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
[2024-11-06 09:18:06,512 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 09:18:06,516 INFO  L225             Difference]: With dead ends: 16
[2024-11-06 09:18:06,516 INFO  L226             Difference]: Without dead ends: 7
[2024-11-06 09:18:06,518 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
[2024-11-06 09:18:06,521 INFO  L432           NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-06 09:18:06,522 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-06 09:18:06,534 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7 states.
[2024-11-06 09:18:06,540 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7.
[2024-11-06 09:18:06,541 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)
[2024-11-06 09:18:06,542 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions.
[2024-11-06 09:18:06,542 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5
[2024-11-06 09:18:06,543 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 09:18:06,543 INFO  L471      AbstractCegarLoop]: Abstraction has 7 states and 7 transitions.
[2024-11-06 09:18:06,543 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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)
[2024-11-06 09:18:06,543 INFO  L276                IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions.
[2024-11-06 09:18:06,543 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-06 09:18:06,544 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 09:18:06,544 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-06 09:18:06,548 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
[2024-11-06 09:18:06,744 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
[2024-11-06 09:18:06,745 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 09:18:06,746 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 09:18:06,746 INFO  L85        PathProgramCache]: Analyzing trace with hash 889537510, now seen corresponding path program 1 times
[2024-11-06 09:18:06,746 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 09:18:06,747 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363445669]
[2024-11-06 09:18:06,747 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 09:18:06,747 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
[2024-11-06 09:18:06,747 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 09:18:06,750 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)
[2024-11-06 09:18:06,751 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
[2024-11-06 09:18:06,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 09:18:06,824 INFO  L255         TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-06 09:18:06,826 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 09:18:06,859 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 09:18:06,859 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 09:18:06,894 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 09:18:06,895 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 09:18:06,895 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363445669]
[2024-11-06 09:18:06,895 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [363445669] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 09:18:06,895 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 09:18:06,896 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6
[2024-11-06 09:18:06,896 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301001000]
[2024-11-06 09:18:06,896 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 09:18:06,898 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-06 09:18:06,899 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 09:18:06,899 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-06 09:18:06,900 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-06 09:18:06,900 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), 6 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)
[2024-11-06 09:18:07,115 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 09:18:07,115 INFO  L93              Difference]: Finished difference Result 13 states and 15 transitions.
[2024-11-06 09:18:07,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-06 09:18:07,118 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 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
[2024-11-06 09:18:07,118 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 09:18:07,119 INFO  L225             Difference]: With dead ends: 13
[2024-11-06 09:18:07,119 INFO  L226             Difference]: Without dead ends: 10
[2024-11-06 09:18:07,119 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42
[2024-11-06 09:18:07,120 INFO  L432           NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-06 09:18:07,121 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-06 09:18:07,122 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10 states.
[2024-11-06 09:18:07,123 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10.
[2024-11-06 09:18:07,123 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)
[2024-11-06 09:18:07,123 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions.
[2024-11-06 09:18:07,124 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6
[2024-11-06 09:18:07,124 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 09:18:07,124 INFO  L471      AbstractCegarLoop]: Abstraction has 10 states and 10 transitions.
[2024-11-06 09:18:07,124 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 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)
[2024-11-06 09:18:07,124 INFO  L276                IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions.
[2024-11-06 09:18:07,125 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-06 09:18:07,125 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 09:18:07,125 INFO  L215           NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1]
[2024-11-06 09:18:07,132 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
[2024-11-06 09:18:07,325 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
[2024-11-06 09:18:07,326 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 09:18:07,327 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 09:18:07,327 INFO  L85        PathProgramCache]: Analyzing trace with hash 201697478, now seen corresponding path program 2 times
[2024-11-06 09:18:07,328 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 09:18:07,328 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861207520]
[2024-11-06 09:18:07,328 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-06 09:18:07,328 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
[2024-11-06 09:18:07,329 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 09:18:07,330 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)
[2024-11-06 09:18:07,331 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
[2024-11-06 09:18:07,451 INFO  L227   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-06 09:18:07,451 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-06 09:18:07,455 INFO  L255         TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-06 09:18:07,459 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 09:18:07,533 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 09:18:07,533 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 09:18:07,644 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 09:18:07,645 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 09:18:07,645 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861207520]
[2024-11-06 09:18:07,645 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [861207520] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 09:18:07,646 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 09:18:07,646 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12
[2024-11-06 09:18:07,646 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127407010]
[2024-11-06 09:18:07,646 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 09:18:07,646 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-06 09:18:07,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 09:18:07,647 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-06 09:18:07,648 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132
[2024-11-06 09:18:07,648 INFO  L87              Difference]: Start difference. First operand 10 states and 10 transitions. Second operand  has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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)
[2024-11-06 09:18:08,157 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 09:18:08,157 INFO  L93              Difference]: Finished difference Result 19 states and 24 transitions.
[2024-11-06 09:18:08,160 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2024-11-06 09:18:08,160 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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 9
[2024-11-06 09:18:08,160 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 09:18:08,161 INFO  L225             Difference]: With dead ends: 19
[2024-11-06 09:18:08,161 INFO  L226             Difference]: Without dead ends: 16
[2024-11-06 09:18:08,162 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240
[2024-11-06 09:18:08,163 INFO  L432           NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-06 09:18:08,163 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-06 09:18:08,164 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2024-11-06 09:18:08,165 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2024-11-06 09:18:08,166 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 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)
[2024-11-06 09:18:08,166 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions.
[2024-11-06 09:18:08,166 INFO  L78                 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9
[2024-11-06 09:18:08,166 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 09:18:08,167 INFO  L471      AbstractCegarLoop]: Abstraction has 16 states and 16 transitions.
[2024-11-06 09:18:08,167 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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)
[2024-11-06 09:18:08,167 INFO  L276                IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions.
[2024-11-06 09:18:08,167 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-06 09:18:08,167 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 09:18:08,167 INFO  L215           NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1]
[2024-11-06 09:18:08,174 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 (4)] Forceful destruction successful, exit code 0
[2024-11-06 09:18:08,368 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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
[2024-11-06 09:18:08,368 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 09:18:08,369 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 09:18:08,370 INFO  L85        PathProgramCache]: Analyzing trace with hash -763767610, now seen corresponding path program 3 times
[2024-11-06 09:18:08,370 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 09:18:08,370 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111922820]
[2024-11-06 09:18:08,371 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-06 09:18:08,371 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
[2024-11-06 09:18:08,371 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 09:18:08,375 INFO  L229       MonitoredProcess]: Starting monitored process 5 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)
[2024-11-06 09:18:08,377 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 (5)] Waiting until timeout for monitored process
[2024-11-06 09:18:08,657 INFO  L227   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s)
[2024-11-06 09:18:08,657 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-06 09:18:08,666 INFO  L255         TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-06 09:18:08,669 INFO  L278         TraceCheckSpWp]: Computing forward predicates...