/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_amount100_file-16.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:02:45,058 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:02:45,123 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 08:02:45,129 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:02:45,129 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:02:45,155 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:02:45,155 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:02:45,156 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:02:45,156 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:02:45,156 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:02:45,157 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:02:45,157 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:02:45,157 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:02:45,160 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:02:45,160 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:02:45,161 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:02:45,161 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:02:45,161 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:02:45,161 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:02:45,161 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:02:45,162 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:02:45,163 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:02:45,164 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:02:45,164 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:02:45,164 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:02:45,164 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:02:45,164 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:02:45,164 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:02:45,165 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:02:45,165 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:02:45,165 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:02:45,165 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:02:45,166 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:02:45,166 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:02:45,166 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:02:45,168 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:02:45,168 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:02:45,169 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:02:45,169 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:02:45,169 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:02:45,169 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:02:45,170 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:02:45,170 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:02:45,170 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:02:45,170 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:02:45,396 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:02:45,431 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:02:45,433 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:02:45,435 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:02:45,435 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:02:45,436 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-16.i
[2024-11-06 08:02:47,040 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:02:47,229 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:02:47,229 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-16.i
[2024-11-06 08:02:47,236 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f13dbc12/63ad1ddf46224a44b12a2f3c35c84e0f/FLAG414f51690
[2024-11-06 08:02:47,246 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f13dbc12/63ad1ddf46224a44b12a2f3c35c84e0f
[2024-11-06 08:02:47,249 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:02:47,250 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:02:47,251 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:02:47,251 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:02:47,256 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:02:47,256 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:02:47" (1/1) ...
[2024-11-06 08:02:47,257 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@508a8033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:47, skipping insertion in model container
[2024-11-06 08:02:47,257 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:02:47" (1/1) ...
[2024-11-06 08:02:47,283 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:02:47,414 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_amount100_file-16.i[916,929]
[2024-11-06 08:02:47,489 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:02:47,505 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:02:47,514 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_amount100_file-16.i[916,929]
[2024-11-06 08:02:47,589 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:02:47,609 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:02:47,609 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:47 WrapperNode
[2024-11-06 08:02:47,609 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:02:47,610 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:02:47,610 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:02:47,610 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:02:47,615 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:47" (1/1) ...
[2024-11-06 08:02:47,624 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:47" (1/1) ...
[2024-11-06 08:02:47,644 INFO  L138                Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 177
[2024-11-06 08:02:47,647 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:02:47,648 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:02:47,648 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:02:47,648 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:02:47,660 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:47" (1/1) ...
[2024-11-06 08:02:47,661 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:47" (1/1) ...
[2024-11-06 08:02:47,669 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:47" (1/1) ...
[2024-11-06 08:02:47,687 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 08:02:47,687 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:47" (1/1) ...
[2024-11-06 08:02:47,687 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:47" (1/1) ...
[2024-11-06 08:02:47,695 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:47" (1/1) ...
[2024-11-06 08:02:47,698 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:47" (1/1) ...
[2024-11-06 08:02:47,703 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:47" (1/1) ...
[2024-11-06 08:02:47,705 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:47" (1/1) ...
[2024-11-06 08:02:47,708 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:02:47,709 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:02:47,709 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:02:47,709 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:02:47,710 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:47" (1/1) ...
[2024-11-06 08:02:47,718 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:02:47,737 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:02:47,756 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 08:02:47,768 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 08:02:47,791 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:02:47,791 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:02:47,792 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:02:47,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:02:47,792 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:02:47,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:02:47,866 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:02:47,867 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:02:59,460 INFO  L?                        ?]: Removed 18 outVars from TransFormulas that were not future-live.
[2024-11-06 08:02:59,460 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:02:59,472 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:02:59,472 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:02:59,473 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:02:59 BoogieIcfgContainer
[2024-11-06 08:02:59,473 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:02:59,474 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:02:59,475 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:02:59,480 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:02:59,480 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:02:47" (1/3) ...
[2024-11-06 08:02:59,480 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0b0242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:02:59, skipping insertion in model container
[2024-11-06 08:02:59,481 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:47" (2/3) ...
[2024-11-06 08:02:59,481 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0b0242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:02:59, skipping insertion in model container
[2024-11-06 08:02:59,481 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:02:59" (3/3) ...
[2024-11-06 08:02:59,482 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-16.i
[2024-11-06 08:02:59,495 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:02:59,495 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:02:59,550 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:02:59,555 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;@420bca21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:02:59,555 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:02:59,559 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 76 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 53 states have internal predecessors, (75), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-06 08:02:59,568 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2024-11-06 08:02:59,569 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:02:59,569 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:02:59,570 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:02:59,573 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:02:59,574 INFO  L85        PathProgramCache]: Analyzing trace with hash -871836568, now seen corresponding path program 1 times
[2024-11-06 08:02:59,584 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:02:59,584 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549500769]
[2024-11-06 08:02:59,585 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:02:59,585 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 08:02:59,585 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:02:59,588 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 08:02:59,594 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 08:02:59,978 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:02:59,994 INFO  L255         TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 08:03:00,009 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:03:00,043 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked.
[2024-11-06 08:03:00,044 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:03:00,044 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:03:00,044 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549500769]
[2024-11-06 08:03:00,045 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549500769] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:03:00,045 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:03:00,045 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 08:03:00,047 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936017255]
[2024-11-06 08:03:00,047 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:03:00,051 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 08:03:00,051 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:03:00,070 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 08:03:00,071 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:03:00,073 INFO  L87              Difference]: Start difference. First operand  has 76 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 53 states have internal predecessors, (75), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)
[2024-11-06 08:03:00,105 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:03:00,105 INFO  L93              Difference]: Finished difference Result 145 states and 249 transitions.
[2024-11-06 08:03:00,106 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 08:03:00,108 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 143
[2024-11-06 08:03:00,108 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:03:00,116 INFO  L225             Difference]: With dead ends: 145
[2024-11-06 08:03:00,116 INFO  L226             Difference]: Without dead ends: 72
[2024-11-06 08:03:00,120 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 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 08:03:00,125 INFO  L432           NwaCegarLoop]: 110 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, 110 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 08:03:00,126 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 08:03:00,163 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2024-11-06 08:03:00,187 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72.
[2024-11-06 08:03:00,190 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 72 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 49 states have internal predecessors, (68), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-06 08:03:00,192 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 110 transitions.
[2024-11-06 08:03:00,195 INFO  L78                 Accepts]: Start accepts. Automaton has 72 states and 110 transitions. Word has length 143
[2024-11-06 08:03:00,196 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:03:00,196 INFO  L471      AbstractCegarLoop]: Abstraction has 72 states and 110 transitions.
[2024-11-06 08:03:00,197 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)
[2024-11-06 08:03:00,197 INFO  L276                IsEmpty]: Start isEmpty. Operand 72 states and 110 transitions.
[2024-11-06 08:03:00,200 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2024-11-06 08:03:00,201 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:03:00,201 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:03:00,214 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2024-11-06 08:03:00,402 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 08:03:00,402 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:03:00,403 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:03:00,403 INFO  L85        PathProgramCache]: Analyzing trace with hash 482563998, now seen corresponding path program 1 times
[2024-11-06 08:03:00,404 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:03:00,404 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379645144]
[2024-11-06 08:03:00,404 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:03:00,404 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 08:03:00,405 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:03:00,407 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 08:03:00,408 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 08:03:00,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:03:00,731 INFO  L255         TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-06 08:03:00,742 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:03:02,456 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked.
[2024-11-06 08:03:02,457 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:03:03,489 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked.
[2024-11-06 08:03:03,490 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:03:03,490 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1379645144]
[2024-11-06 08:03:03,490 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1379645144] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 08:03:03,490 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 08:03:03,490 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 10
[2024-11-06 08:03:03,491 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846984163]
[2024-11-06 08:03:03,491 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 08:03:03,492 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-06 08:03:03,492 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:03:03,493 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-06 08:03:03,493 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2024-11-06 08:03:03,494 INFO  L87              Difference]: Start difference. First operand 72 states and 110 transitions. Second operand  has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 2 states have call successors, (42), 3 states have call predecessors, (42), 5 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42)
[2024-11-06 08:03:07,712 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:03:10,922 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:03:11,081 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:03:11,081 INFO  L93              Difference]: Finished difference Result 292 states and 445 transitions.
[2024-11-06 08:03:11,082 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2024-11-06 08:03:11,082 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 2 states have call successors, (42), 3 states have call predecessors, (42), 5 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 143
[2024-11-06 08:03:11,082 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:03:11,084 INFO  L225             Difference]: With dead ends: 292
[2024-11-06 08:03:11,084 INFO  L226             Difference]: Without dead ends: 223
[2024-11-06 08:03:11,085 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 277 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=126, Invalid=254, Unknown=0, NotChecked=0, Total=380
[2024-11-06 08:03:11,086 INFO  L432           NwaCegarLoop]: 109 mSDtfsCounter, 371 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time
[2024-11-06 08:03:11,086 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 514 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time]
[2024-11-06 08:03:11,087 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 223 states.
[2024-11-06 08:03:11,106 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 184.
[2024-11-06 08:03:11,107 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 184 states, 129 states have (on average 1.4031007751937985) internal successors, (181), 130 states have internal predecessors, (181), 51 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51)
[2024-11-06 08:03:11,109 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 283 transitions.
[2024-11-06 08:03:11,109 INFO  L78                 Accepts]: Start accepts. Automaton has 184 states and 283 transitions. Word has length 143
[2024-11-06 08:03:11,109 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:03:11,109 INFO  L471      AbstractCegarLoop]: Abstraction has 184 states and 283 transitions.
[2024-11-06 08:03:11,110 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 2 states have call successors, (42), 3 states have call predecessors, (42), 5 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42)
[2024-11-06 08:03:11,110 INFO  L276                IsEmpty]: Start isEmpty. Operand 184 states and 283 transitions.
[2024-11-06 08:03:11,111 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 145
[2024-11-06 08:03:11,111 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:03:11,111 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:03:11,127 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 (3)] Ended with exit code 0
[2024-11-06 08:03:11,312 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 08:03:11,312 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:03:11,313 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:03:11,313 INFO  L85        PathProgramCache]: Analyzing trace with hash 577043965, now seen corresponding path program 1 times
[2024-11-06 08:03:11,313 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:03:11,313 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355753125]
[2024-11-06 08:03:11,314 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:03:11,314 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 08:03:11,314 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:03:11,316 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 08:03:11,318 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 08:03:11,582 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:03:11,594 INFO  L255         TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-06 08:03:11,600 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:03:11,941 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 168 proven. 54 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked.
[2024-11-06 08:03:11,941 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:03:12,092 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked.
[2024-11-06 08:03:12,093 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:03:12,093 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355753125]
[2024-11-06 08:03:12,093 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1355753125] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:03:12,093 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-06 08:03:12,093 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2024-11-06 08:03:12,094 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298007090]
[2024-11-06 08:03:12,094 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:03:12,094 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-06 08:03:12,094 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:03:12,095 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-06 08:03:12,095 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-06 08:03:12,097 INFO  L87              Difference]: Start difference. First operand 184 states and 283 transitions. Second operand  has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-06 08:03:14,151 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:03:14,195 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:03:14,195 INFO  L93              Difference]: Finished difference Result 377 states and 572 transitions.
[2024-11-06 08:03:14,196 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-06 08:03:14,196 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 144
[2024-11-06 08:03:14,196 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:03:14,199 INFO  L225             Difference]: With dead ends: 377
[2024-11-06 08:03:14,199 INFO  L226             Difference]: Without dead ends: 196
[2024-11-06 08:03:14,200 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-06 08:03:14,201 INFO  L432           NwaCegarLoop]: 95 mSDtfsCounter, 46 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2024-11-06 08:03:14,201 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 151 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2024-11-06 08:03:14,202 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 196 states.
[2024-11-06 08:03:14,217 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196.
[2024-11-06 08:03:14,217 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 196 states, 138 states have (on average 1.3478260869565217) internal successors, (186), 139 states have internal predecessors, (186), 51 states have call successors, (51), 6 states have call predecessors, (51), 6 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51)
[2024-11-06 08:03:14,219 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 288 transitions.
[2024-11-06 08:03:14,219 INFO  L78                 Accepts]: Start accepts. Automaton has 196 states and 288 transitions. Word has length 144
[2024-11-06 08:03:14,219 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:03:14,220 INFO  L471      AbstractCegarLoop]: Abstraction has 196 states and 288 transitions.
[2024-11-06 08:03:14,220 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-06 08:03:14,220 INFO  L276                IsEmpty]: Start isEmpty. Operand 196 states and 288 transitions.
[2024-11-06 08:03:14,221 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 145
[2024-11-06 08:03:14,221 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:03:14,222 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:03:14,236 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 08:03:14,425 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 08:03:14,426 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:03:14,427 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:03:14,427 INFO  L85        PathProgramCache]: Analyzing trace with hash 1163849979, now seen corresponding path program 1 times
[2024-11-06 08:03:14,428 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:03:14,428 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62304946]
[2024-11-06 08:03:14,428 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:03:14,428 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 08:03:14,428 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:03:14,430 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 08:03:14,431 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 08:03:14,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:03:14,712 INFO  L255         TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-06 08:03:14,716 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:03:15,860 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 168 proven. 54 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked.
[2024-11-06 08:03:15,860 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:03:20,754 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:03:20,755 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62304946]
[2024-11-06 08:03:20,755 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [62304946] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:03:20,755 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651214375]
[2024-11-06 08:03:20,755 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:03:20,755 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:03:20,755 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:03:20,760 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 08:03:20,761 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-06 08:03:20,998 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:03:21,026 INFO  L255         TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-06 08:03:21,031 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:03:23,450 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 168 proven. 54 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked.
[2024-11-06 08:03:23,450 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:03:42,218 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [651214375] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:03:42,218 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 08:03:42,218 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 10
[2024-11-06 08:03:42,218 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035159382]
[2024-11-06 08:03:42,218 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 08:03:42,219 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-06 08:03:42,219 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:03:42,219 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-06 08:03:42,220 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=262, Unknown=1, NotChecked=0, Total=342
[2024-11-06 08:03:42,220 INFO  L87              Difference]: Start difference. First operand 196 states and 288 transitions. Second operand  has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)
[2024-11-06 08:03:46,636 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-06 08:03:52,299 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-06 08:03:52,457 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:03:52,457 INFO  L93              Difference]: Finished difference Result 652 states and 937 transitions.
[2024-11-06 08:03:52,458 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2024-11-06 08:03:52,458 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 144
[2024-11-06 08:03:52,458 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:03:52,461 INFO  L225             Difference]: With dead ends: 652
[2024-11-06 08:03:52,461 INFO  L226             Difference]: Without dead ends: 459
[2024-11-06 08:03:52,462 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 24.5s TimeCoverageRelationStatistics Valid=332, Invalid=857, Unknown=1, NotChecked=0, Total=1190
[2024-11-06 08:03:52,463 INFO  L432           NwaCegarLoop]: 114 mSDtfsCounter, 118 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time
[2024-11-06 08:03:52,463 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 713 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time]
[2024-11-06 08:03:52,464 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 459 states.
[2024-11-06 08:03:52,513 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 432.
[2024-11-06 08:03:52,515 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 432 states, 289 states have (on average 1.259515570934256) internal successors, (364), 292 states have internal predecessors, (364), 123 states have call successors, (123), 19 states have call predecessors, (123), 19 states have return successors, (123), 120 states have call predecessors, (123), 123 states have call successors, (123)
[2024-11-06 08:03:52,518 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 610 transitions.
[2024-11-06 08:03:52,520 INFO  L78                 Accepts]: Start accepts. Automaton has 432 states and 610 transitions. Word has length 144
[2024-11-06 08:03:52,520 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:03:52,520 INFO  L471      AbstractCegarLoop]: Abstraction has 432 states and 610 transitions.
[2024-11-06 08:03:52,520 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)
[2024-11-06 08:03:52,520 INFO  L276                IsEmpty]: Start isEmpty. Operand 432 states and 610 transitions.
[2024-11-06 08:03:52,522 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 145
[2024-11-06 08:03:52,522 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:03:52,522 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:03:52,544 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 (5)] Ended with exit code 0
[2024-11-06 08:03:52,755 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-06 08:03:52,926 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:03:52,927 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:03:52,927 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:03:52,927 INFO  L85        PathProgramCache]: Analyzing trace with hash 1973196605, now seen corresponding path program 1 times
[2024-11-06 08:03:52,928 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:03:52,928 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253995003]
[2024-11-06 08:03:52,928 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:03:52,928 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 08:03:52,928 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:03:52,931 INFO  L229       MonitoredProcess]: Starting monitored process 7 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 08:03:52,932 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 (7)] Waiting until timeout for monitored process
[2024-11-06 08:03:53,191 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:03:53,207 INFO  L255         TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 08:03:53,211 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:03:53,403 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked.
[2024-11-06 08:03:53,403 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:03:53,403 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:03:53,404 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253995003]
[2024-11-06 08:03:53,404 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [253995003] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:03:53,404 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:03:53,404 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-06 08:03:53,404 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593270396]
[2024-11-06 08:03:53,404 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:03:53,405 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-06 08:03:53,405 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:03:53,405 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-06 08:03:53,405 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-06 08:03:53,406 INFO  L87              Difference]: Start difference. First operand 432 states and 610 transitions. Second operand  has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-06 08:03:57,861 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-06 08:03:59,500 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-06 08:04:03,979 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-06 08:04:04,050 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:04:04,050 INFO  L93              Difference]: Finished difference Result 1029 states and 1472 transitions.
[2024-11-06 08:04:04,051 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-06 08:04:04,051 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 144
[2024-11-06 08:04:04,051 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:04:04,055 INFO  L225             Difference]: With dead ends: 1029
[2024-11-06 08:04:04,055 INFO  L226             Difference]: Without dead ends: 650
[2024-11-06 08:04:04,056 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-06 08:04:04,057 INFO  L432           NwaCegarLoop]: 168 mSDtfsCounter, 161 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time
[2024-11-06 08:04:04,057 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 428 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 105 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time]
[2024-11-06 08:04:04,058 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 650 states.
[2024-11-06 08:04:04,124 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 447.
[2024-11-06 08:04:04,125 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 447 states, 304 states have (on average 1.2467105263157894) internal successors, (379), 307 states have internal predecessors, (379), 123 states have call successors, (123), 19 states have call predecessors, (123), 19 states have return successors, (123), 120 states have call predecessors, (123), 123 states have call successors, (123)
[2024-11-06 08:04:04,127 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 625 transitions.
[2024-11-06 08:04:04,128 INFO  L78                 Accepts]: Start accepts. Automaton has 447 states and 625 transitions. Word has length 144
[2024-11-06 08:04:04,128 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:04:04,128 INFO  L471      AbstractCegarLoop]: Abstraction has 447 states and 625 transitions.
[2024-11-06 08:04:04,128 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-06 08:04:04,128 INFO  L276                IsEmpty]: Start isEmpty. Operand 447 states and 625 transitions.
[2024-11-06 08:04:04,129 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 145
[2024-11-06 08:04:04,130 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:04:04,130 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:04,145 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 (7)] Ended with exit code 0
[2024-11-06 08:04:04,330 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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 08:04:04,331 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:04:04,331 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:04:04,331 INFO  L85        PathProgramCache]: Analyzing trace with hash 2030454907, now seen corresponding path program 1 times
[2024-11-06 08:04:04,332 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:04:04,332 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008126519]
[2024-11-06 08:04:04,332 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:04:04,332 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 08:04:04,332 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:04:04,334 INFO  L229       MonitoredProcess]: Starting monitored process 8 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 08:04:04,336 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 (8)] Waiting until timeout for monitored process
[2024-11-06 08:04:04,576 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:04:04,593 INFO  L255         TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 40 conjuncts are in the unsatisfiable core
[2024-11-06 08:04:04,598 INFO  L278         TraceCheckSpWp]: Computing forward predicates...