/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/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 07:48:18,264 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 07:48:18,318 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 07:48:18,323 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 07:48:18,323 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 07:48:18,345 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 07:48:18,346 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 07:48:18,346 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 07:48:18,346 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 07:48:18,349 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 07:48:18,349 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 07:48:18,349 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 07:48:18,350 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 07:48:18,350 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 07:48:18,350 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 07:48:18,350 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 07:48:18,350 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 07:48:18,351 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 07:48:18,351 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 07:48:18,351 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 07:48:18,351 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 07:48:18,353 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 07:48:18,353 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 07:48:18,353 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 07:48:18,354 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 07:48:18,354 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 07:48:18,354 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 07:48:18,354 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 07:48:18,354 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 07:48:18,354 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 07:48:18,354 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 07:48:18,355 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 07:48:18,355 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 07:48:18,355 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 07:48:18,355 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 07:48:18,355 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 07:48:18,355 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 07:48:18,356 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 07:48:18,356 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 07:48:18,356 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 07:48:18,356 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 07:48:18,357 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 07:48:18,357 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 07:48:18,357 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 07:48:18,357 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 07:48:18,537 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 07:48:18,558 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 07:48:18,561 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 07:48:18,562 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 07:48:18,562 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 07:48:18,563 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i
[2024-11-06 07:48:19,781 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 07:48:19,937 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 07:48:19,937 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i
[2024-11-06 07:48:19,948 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cdf26ed1/6746a7b4718c4520b74f6c7396c0fbce/FLAG60fb44785
[2024-11-06 07:48:20,337 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cdf26ed1/6746a7b4718c4520b74f6c7396c0fbce
[2024-11-06 07:48:20,339 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 07:48:20,340 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 07:48:20,342 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 07:48:20,343 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 07:48:20,347 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 07:48:20,348 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:48:20" (1/1) ...
[2024-11-06 07:48:20,350 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a12acca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:20, skipping insertion in model container
[2024-11-06 07:48:20,350 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:48:20" (1/1) ...
[2024-11-06 07:48:20,373 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 07:48:20,509 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i[917,930]
[2024-11-06 07:48:20,549 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 07:48:20,563 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 07:48:20,572 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i[917,930]
[2024-11-06 07:48:20,586 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 07:48:20,601 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 07:48:20,601 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:20 WrapperNode
[2024-11-06 07:48:20,601 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 07:48:20,602 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 07:48:20,602 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 07:48:20,602 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 07:48:20,607 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:20" (1/1) ...
[2024-11-06 07:48:20,614 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:20" (1/1) ...
[2024-11-06 07:48:20,630 INFO  L138                Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116
[2024-11-06 07:48:20,631 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 07:48:20,631 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 07:48:20,631 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 07:48:20,632 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 07:48:20,640 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:20" (1/1) ...
[2024-11-06 07:48:20,640 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:20" (1/1) ...
[2024-11-06 07:48:20,643 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:20" (1/1) ...
[2024-11-06 07:48:20,657 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 07:48:20,657 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:20" (1/1) ...
[2024-11-06 07:48:20,657 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:20" (1/1) ...
[2024-11-06 07:48:20,666 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:20" (1/1) ...
[2024-11-06 07:48:20,669 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:20" (1/1) ...
[2024-11-06 07:48:20,673 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:20" (1/1) ...
[2024-11-06 07:48:20,674 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:20" (1/1) ...
[2024-11-06 07:48:20,676 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 07:48:20,677 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 07:48:20,677 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 07:48:20,677 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 07:48:20,678 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:20" (1/1) ...
[2024-11-06 07:48:20,683 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 07:48:20,691 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 07:48:20,702 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 07:48:20,704 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 07:48:20,721 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 07:48:20,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 07:48:20,721 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 07:48:20,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 07:48:20,722 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 07:48:20,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 07:48:20,777 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 07:48:20,779 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 07:48:20,964 INFO  L?                        ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-06 07:48:20,964 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 07:48:20,974 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 07:48:20,974 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 07:48:20,975 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:48:20 BoogieIcfgContainer
[2024-11-06 07:48:20,976 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 07:48:20,977 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 07:48:20,977 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 07:48:20,981 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 07:48:20,981 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:48:20" (1/3) ...
[2024-11-06 07:48:20,982 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cea6cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:48:20, skipping insertion in model container
[2024-11-06 07:48:20,982 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:48:20" (2/3) ...
[2024-11-06 07:48:20,982 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cea6cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:48:20, skipping insertion in model container
[2024-11-06 07:48:20,983 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:48:20" (3/3) ...
[2024-11-06 07:48:20,984 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-88.i
[2024-11-06 07:48:20,998 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 07:48:20,999 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 07:48:21,058 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 07:48:21,063 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;@7b14bf21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 07:48:21,063 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 07:48:21,066 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2024-11-06 07:48:21,075 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-06 07:48:21,076 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:48:21,076 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 07:48:21,077 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:48:21,081 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:48:21,081 INFO  L85        PathProgramCache]: Analyzing trace with hash -151393228, now seen corresponding path program 1 times
[2024-11-06 07:48:21,091 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:48:21,091 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056376899]
[2024-11-06 07:48:21,091 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:48:21,092 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 07:48:21,092 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 07:48:21,094 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 07:48:21,096 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 07:48:21,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:48:21,224 INFO  L255         TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 07:48:21,234 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 07:48:21,262 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked.
[2024-11-06 07:48:21,263 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 07:48:21,263 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 07:48:21,263 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056376899]
[2024-11-06 07:48:21,264 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056376899] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 07:48:21,264 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 07:48:21,264 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 07:48:21,265 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355958385]
[2024-11-06 07:48:21,266 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 07:48:21,269 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 07:48:21,269 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 07:48:21,287 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 07:48:21,288 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 07:48:21,290 INFO  L87              Difference]: Start difference. First operand  has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand  has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2024-11-06 07:48:21,312 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 07:48:21,312 INFO  L93              Difference]: Finished difference Result 95 states and 161 transitions.
[2024-11-06 07:48:21,315 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 07:48:21,316 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108
[2024-11-06 07:48:21,317 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 07:48:21,323 INFO  L225             Difference]: With dead ends: 95
[2024-11-06 07:48:21,323 INFO  L226             Difference]: Without dead ends: 47
[2024-11-06 07:48:21,326 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 07:48:21,329 INFO  L432           NwaCegarLoop]: 68 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, 68 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
[2024-11-06 07:48:21,329 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 07:48:21,343 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2024-11-06 07:48:21,363 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47.
[2024-11-06 07:48:21,364 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 47 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2024-11-06 07:48:21,366 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions.
[2024-11-06 07:48:21,367 INFO  L78                 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 108
[2024-11-06 07:48:21,367 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 07:48:21,367 INFO  L471      AbstractCegarLoop]: Abstraction has 47 states and 68 transitions.
[2024-11-06 07:48:21,368 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2024-11-06 07:48:21,368 INFO  L276                IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions.
[2024-11-06 07:48:21,369 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-06 07:48:21,370 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:48:21,370 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 07:48:21,375 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 07:48:21,570 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 07:48:21,571 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:48:21,572 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:48:21,572 INFO  L85        PathProgramCache]: Analyzing trace with hash 222157298, now seen corresponding path program 1 times
[2024-11-06 07:48:21,573 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:48:21,573 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1891530693]
[2024-11-06 07:48:21,573 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:48:21,573 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 07:48:21,573 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 07:48:21,577 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 07:48:21,578 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 07:48:21,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:48:21,668 INFO  L255         TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 07:48:21,673 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 07:48:21,954 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2024-11-06 07:48:21,955 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 07:48:21,955 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 07:48:21,955 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1891530693]
[2024-11-06 07:48:21,955 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1891530693] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 07:48:21,955 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 07:48:21,955 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-06 07:48:21,955 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594152994]
[2024-11-06 07:48:21,955 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 07:48:21,956 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-06 07:48:21,957 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 07:48:21,958 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-06 07:48:21,958 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-06 07:48:21,959 INFO  L87              Difference]: Start difference. First operand 47 states and 68 transitions. Second operand  has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2024-11-06 07:48:22,110 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 07:48:22,110 INFO  L93              Difference]: Finished difference Result 158 states and 226 transitions.
[2024-11-06 07:48:22,127 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-06 07:48:22,128 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108
[2024-11-06 07:48:22,128 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 07:48:22,130 INFO  L225             Difference]: With dead ends: 158
[2024-11-06 07:48:22,130 INFO  L226             Difference]: Without dead ends: 114
[2024-11-06 07:48:22,130 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-06 07:48:22,131 INFO  L432           NwaCegarLoop]: 63 mSDtfsCounter, 84 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-06 07:48:22,132 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 254 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-06 07:48:22,132 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 114 states.
[2024-11-06 07:48:22,160 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 81.
[2024-11-06 07:48:22,160 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 44 states have internal predecessors, (51), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-06 07:48:22,162 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 119 transitions.
[2024-11-06 07:48:22,164 INFO  L78                 Accepts]: Start accepts. Automaton has 81 states and 119 transitions. Word has length 108
[2024-11-06 07:48:22,165 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 07:48:22,165 INFO  L471      AbstractCegarLoop]: Abstraction has 81 states and 119 transitions.
[2024-11-06 07:48:22,165 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2024-11-06 07:48:22,165 INFO  L276                IsEmpty]: Start isEmpty. Operand 81 states and 119 transitions.
[2024-11-06 07:48:22,166 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-06 07:48:22,166 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:48:22,167 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 07:48:22,174 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 (3)] Forceful destruction successful, exit code 0
[2024-11-06 07:48:22,373 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 07:48:22,374 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:48:22,375 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:48:22,375 INFO  L85        PathProgramCache]: Analyzing trace with hash -587189328, now seen corresponding path program 1 times
[2024-11-06 07:48:22,375 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:48:22,375 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271008449]
[2024-11-06 07:48:22,376 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:48:22,376 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 07:48:22,376 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 07:48:22,379 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 07:48:22,380 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 07:48:22,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:48:22,450 INFO  L255         TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-06 07:48:22,453 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 07:48:22,737 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 258 proven. 15 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked.
[2024-11-06 07:48:22,738 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 07:48:22,940 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 33 proven. 15 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked.
[2024-11-06 07:48:22,940 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 07:48:22,940 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1271008449]
[2024-11-06 07:48:22,940 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1271008449] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 07:48:22,940 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 07:48:22,940 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10
[2024-11-06 07:48:22,941 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605013106]
[2024-11-06 07:48:22,941 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 07:48:22,941 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-06 07:48:22,941 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 07:48:22,942 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-06 07:48:22,942 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2024-11-06 07:48:22,942 INFO  L87              Difference]: Start difference. First operand 81 states and 119 transitions. Second operand  has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34)
[2024-11-06 07:48:23,437 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 07:48:23,437 INFO  L93              Difference]: Finished difference Result 242 states and 342 transitions.
[2024-11-06 07:48:23,438 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2024-11-06 07:48:23,438 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 108
[2024-11-06 07:48:23,439 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 07:48:23,440 INFO  L225             Difference]: With dead ends: 242
[2024-11-06 07:48:23,440 INFO  L226             Difference]: Without dead ends: 198
[2024-11-06 07:48:23,443 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210
[2024-11-06 07:48:23,444 INFO  L432           NwaCegarLoop]: 43 mSDtfsCounter, 131 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-06 07:48:23,444 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 212 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-06 07:48:23,447 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 198 states.
[2024-11-06 07:48:23,482 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 157.
[2024-11-06 07:48:23,484 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 157 states, 89 states have (on average 1.1573033707865168) internal successors, (103), 90 states have internal predecessors, (103), 61 states have call successors, (61), 6 states have call predecessors, (61), 6 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61)
[2024-11-06 07:48:23,485 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 225 transitions.
[2024-11-06 07:48:23,486 INFO  L78                 Accepts]: Start accepts. Automaton has 157 states and 225 transitions. Word has length 108
[2024-11-06 07:48:23,486 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 07:48:23,486 INFO  L471      AbstractCegarLoop]: Abstraction has 157 states and 225 transitions.
[2024-11-06 07:48:23,486 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34)
[2024-11-06 07:48:23,487 INFO  L276                IsEmpty]: Start isEmpty. Operand 157 states and 225 transitions.
[2024-11-06 07:48:23,490 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-06 07:48:23,490 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:48:23,490 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 07:48:23,497 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 (4)] Ended with exit code 0
[2024-11-06 07:48:23,690 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 07:48:23,691 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:48:23,691 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:48:23,691 INFO  L85        PathProgramCache]: Analyzing trace with hash 1932770606, now seen corresponding path program 1 times
[2024-11-06 07:48:23,696 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:48:23,696 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693064458]
[2024-11-06 07:48:23,696 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:48:23,696 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 07:48:23,696 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 07:48:23,697 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 07:48:23,698 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 07:48:23,765 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:48:23,767 INFO  L255         TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-06 07:48:23,774 INFO  L278         TraceCheckSpWp]: Computing forward predicates...