/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_operatoramount_amount250_file-70.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:27:29,267 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:27:29,345 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 08:27:29,349 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:27:29,349 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:27:29,377 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:27:29,378 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:27:29,378 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:27:29,379 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:27:29,379 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:27:29,379 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:27:29,380 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:27:29,380 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:27:29,381 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:27:29,381 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:27:29,381 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:27:29,382 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:27:29,382 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:27:29,382 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:27:29,383 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:27:29,383 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:27:29,386 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:27:29,387 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:27:29,387 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:27:29,387 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:27:29,388 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:27:29,388 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:27:29,388 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:27:29,388 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:27:29,389 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:27:29,389 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:27:29,389 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:27:29,389 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:27:29,390 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:27:29,390 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:27:29,394 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:27:29,394 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:27:29,394 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:27:29,394 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:27:29,394 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:27:29,395 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:27:29,395 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:27:29,395 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:27:29,396 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:27:29,396 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:27:29,634 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:27:29,662 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:27:29,667 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:27:29,668 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:27:29,668 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:27:29,669 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-70.i
[2024-11-06 08:27:31,175 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:27:31,440 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:27:31,440 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-70.i
[2024-11-06 08:27:31,452 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19a12aa45/efe921d7ffd443f99adafee691dc93d5/FLAG84f44451f
[2024-11-06 08:27:31,466 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19a12aa45/efe921d7ffd443f99adafee691dc93d5
[2024-11-06 08:27:31,468 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:27:31,469 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:27:31,470 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:27:31,471 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:27:31,477 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:27:31,478 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:27:31" (1/1) ...
[2024-11-06 08:27:31,479 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70efdb6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:27:31, skipping insertion in model container
[2024-11-06 08:27:31,479 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:27:31" (1/1) ...
[2024-11-06 08:27:31,530 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:27:31,693 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_operatoramount_amount250_file-70.i[916,929]
[2024-11-06 08:27:31,852 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:27:31,867 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:27:31,880 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_operatoramount_amount250_file-70.i[916,929]
[2024-11-06 08:27:31,957 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:27:31,984 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:27:31,987 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:27:31 WrapperNode
[2024-11-06 08:27:31,987 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:27:31,988 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:27:31,988 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:27:31,989 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:27:31,994 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:27:31" (1/1) ...
[2024-11-06 08:27:32,012 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:27:31" (1/1) ...
[2024-11-06 08:27:32,049 INFO  L138                Inliner]: procedures = 27, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 328
[2024-11-06 08:27:32,050 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:27:32,051 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:27:32,051 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:27:32,051 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:27:32,063 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:27:31" (1/1) ...
[2024-11-06 08:27:32,063 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:27:31" (1/1) ...
[2024-11-06 08:27:32,073 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:27:31" (1/1) ...
[2024-11-06 08:27:32,100 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 08:27:32,100 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:27:31" (1/1) ...
[2024-11-06 08:27:32,100 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:27:31" (1/1) ...
[2024-11-06 08:27:32,121 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:27:31" (1/1) ...
[2024-11-06 08:27:32,126 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:27:31" (1/1) ...
[2024-11-06 08:27:32,131 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:27:31" (1/1) ...
[2024-11-06 08:27:32,134 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:27:31" (1/1) ...
[2024-11-06 08:27:32,140 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:27:32,141 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:27:32,141 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:27:32,141 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:27:32,142 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:27:31" (1/1) ...
[2024-11-06 08:27:32,154 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:27:32,175 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:27:32,195 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 08:27:32,199 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 08:27:32,248 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:27:32,249 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:27:32,249 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:27:32,249 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:27:32,249 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:27:32,250 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:27:32,366 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:27:32,369 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:27:53,699 INFO  L?                        ?]: Removed 46 outVars from TransFormulas that were not future-live.
[2024-11-06 08:27:53,699 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:27:53,717 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:27:53,717 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:27:53,717 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:27:53 BoogieIcfgContainer
[2024-11-06 08:27:53,718 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:27:53,723 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:27:53,723 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:27:53,727 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:27:53,727 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:27:31" (1/3) ...
[2024-11-06 08:27:53,728 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b41019e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:27:53, skipping insertion in model container
[2024-11-06 08:27:53,728 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:27:31" (2/3) ...
[2024-11-06 08:27:53,728 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b41019e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:27:53, skipping insertion in model container
[2024-11-06 08:27:53,728 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:27:53" (3/3) ...
[2024-11-06 08:27:53,729 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-70.i
[2024-11-06 08:27:53,742 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:27:53,742 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:27:53,800 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:27:53,806 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;@780c162a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:27:53,806 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:27:53,811 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 130 states, 92 states have (on average 1.5326086956521738) internal successors, (141), 93 states have internal predecessors, (141), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2024-11-06 08:27:53,827 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 240
[2024-11-06 08:27:53,827 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:27:53,828 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:27:53,829 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:27:53,833 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:27:53,834 INFO  L85        PathProgramCache]: Analyzing trace with hash 187069376, now seen corresponding path program 1 times
[2024-11-06 08:27:53,846 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:27:53,846 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260054032]
[2024-11-06 08:27:53,847 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:27:53,847 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 08:27:53,847 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:27:53,851 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 08:27:53,852 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 08:27:55,457 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:27:55,527 INFO  L255         TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 08:27:55,539 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:27:55,600 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 2312 trivial. 0 not checked.
[2024-11-06 08:27:55,601 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:27:55,601 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:27:55,602 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260054032]
[2024-11-06 08:27:55,604 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [260054032] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:27:55,604 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:27:55,605 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 08:27:55,606 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347889688]
[2024-11-06 08:27:55,607 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:27:55,612 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 08:27:55,612 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:27:55,630 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 08:27:55,631 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:27:55,634 INFO  L87              Difference]: Start difference. First operand  has 130 states, 92 states have (on average 1.5326086956521738) internal successors, (141), 93 states have internal predecessors, (141), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand  has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35)
[2024-11-06 08:27:55,669 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:27:55,670 INFO  L93              Difference]: Finished difference Result 253 states and 451 transitions.
[2024-11-06 08:27:55,672 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 08:27:55,673 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) Word has length 239
[2024-11-06 08:27:55,674 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:27:55,683 INFO  L225             Difference]: With dead ends: 253
[2024-11-06 08:27:55,683 INFO  L226             Difference]: Without dead ends: 126
[2024-11-06 08:27:55,688 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 238 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 08:27:55,693 INFO  L432           NwaCegarLoop]: 204 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, 204 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 08:27:55,694 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 08:27:55,707 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 126 states.
[2024-11-06 08:27:55,741 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126.
[2024-11-06 08:27:55,743 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 126 states, 89 states have (on average 1.5056179775280898) internal successors, (134), 89 states have internal predecessors, (134), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2024-11-06 08:27:55,745 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 204 transitions.
[2024-11-06 08:27:55,747 INFO  L78                 Accepts]: Start accepts. Automaton has 126 states and 204 transitions. Word has length 239
[2024-11-06 08:27:55,747 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:27:55,748 INFO  L471      AbstractCegarLoop]: Abstraction has 126 states and 204 transitions.
[2024-11-06 08:27:55,748 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35)
[2024-11-06 08:27:55,748 INFO  L276                IsEmpty]: Start isEmpty. Operand 126 states and 204 transitions.
[2024-11-06 08:27:55,756 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 240
[2024-11-06 08:27:55,757 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:27:55,757 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:27:55,807 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 08:27:55,958 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 08:27:55,959 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:27:55,959 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:27:55,959 INFO  L85        PathProgramCache]: Analyzing trace with hash -1861226630, now seen corresponding path program 1 times
[2024-11-06 08:27:55,961 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:27:55,961 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720769923]
[2024-11-06 08:27:55,961 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:27:55,962 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 08:27:55,962 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:27:55,965 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 08:27:55,967 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 08:27:57,671 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:27:57,744 INFO  L255         TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-06 08:27:57,753 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:28:10,679 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2024-11-06 08:28:10,682 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:28:10,683 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:28:10,683 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720769923]
[2024-11-06 08:28:10,683 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720769923] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:28:10,683 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:28:10,683 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-06 08:28:10,684 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329861128]
[2024-11-06 08:28:10,684 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:28:10,685 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-06 08:28:10,686 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:28:10,689 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-06 08:28:10,689 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-06 08:28:10,689 INFO  L87              Difference]: Start difference. First operand 126 states and 204 transitions. Second operand  has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2024-11-06 08:28:16,944 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:28:20,971 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:28:24,986 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:28:31,451 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:28:35,472 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:28:39,494 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:28:43,499 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:28:43,846 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:28:43,846 INFO  L93              Difference]: Finished difference Result 472 states and 776 transitions.
[2024-11-06 08:28:43,847 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-06 08:28:43,847 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 239
[2024-11-06 08:28:43,849 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:28:43,853 INFO  L225             Difference]: With dead ends: 472
[2024-11-06 08:28:43,853 INFO  L226             Difference]: Without dead ends: 349
[2024-11-06 08:28:43,854 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-06 08:28:43,855 INFO  L432           NwaCegarLoop]: 239 mSDtfsCounter, 332 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 98 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.9s IncrementalHoareTripleChecker+Time
[2024-11-06 08:28:43,856 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 672 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 31 Invalid, 7 Unknown, 0 Unchecked, 32.9s Time]
[2024-11-06 08:28:43,858 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 349 states.
[2024-11-06 08:28:43,918 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 254.
[2024-11-06 08:28:43,919 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 254 states, 181 states have (on average 1.4861878453038675) internal successors, (269), 181 states have internal predecessors, (269), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2024-11-06 08:28:43,924 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 409 transitions.
[2024-11-06 08:28:43,925 INFO  L78                 Accepts]: Start accepts. Automaton has 254 states and 409 transitions. Word has length 239
[2024-11-06 08:28:43,929 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:28:43,929 INFO  L471      AbstractCegarLoop]: Abstraction has 254 states and 409 transitions.
[2024-11-06 08:28:43,929 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2024-11-06 08:28:43,930 INFO  L276                IsEmpty]: Start isEmpty. Operand 254 states and 409 transitions.
[2024-11-06 08:28:43,935 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 240
[2024-11-06 08:28:43,936 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:28:43,936 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 08:28:44,008 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 08:28:44,137 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 08:28:44,137 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:28:44,138 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:28:44,138 INFO  L85        PathProgramCache]: Analyzing trace with hash -1201695108, now seen corresponding path program 1 times
[2024-11-06 08:28:44,139 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:28:44,139 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122264287]
[2024-11-06 08:28:44,139 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:28:44,139 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 08:28:44,139 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:28:44,140 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 08:28:44,142 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 08:28:45,884 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:28:45,966 INFO  L255         TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-06 08:28:45,975 INFO  L278         TraceCheckSpWp]: Computing forward predicates...