/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-48.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:07:17,234 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:07:17,316 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 08:07:17,321 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:07:17,322 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:07:17,348 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:07:17,349 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:07:17,349 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:07:17,349 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:07:17,350 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:07:17,350 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:07:17,350 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:07:17,351 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:07:17,351 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:07:17,352 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:07:17,352 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:07:17,352 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:07:17,353 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:07:17,353 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:07:17,353 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:07:17,354 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:07:17,354 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:07:17,354 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:07:17,355 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:07:17,355 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:07:17,355 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:07:17,356 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:07:17,356 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:07:17,356 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:07:17,356 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:07:17,357 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:07:17,357 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:07:17,357 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:07:17,358 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:07:17,358 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:07:17,358 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:07:17,359 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:07:17,359 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:07:17,359 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:07:17,359 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:07:17,360 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:07:17,360 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:07:17,360 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:07:17,360 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:07:17,361 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:07:17,585 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:07:17,610 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:07:17,617 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:07:17,618 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:07:17,619 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:07:17,622 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-48.i
[2024-11-06 08:07:19,046 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:07:19,290 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:07:19,291 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-48.i
[2024-11-06 08:07:19,302 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be3de04d6/3ca0de706ffb4088ab9b29b9a3b48848/FLAGde4e65c69
[2024-11-06 08:07:19,319 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be3de04d6/3ca0de706ffb4088ab9b29b9a3b48848
[2024-11-06 08:07:19,323 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:07:19,324 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:07:19,326 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:07:19,326 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:07:19,331 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:07:19,332 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:07:19" (1/1) ...
[2024-11-06 08:07:19,333 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738c015d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:07:19, skipping insertion in model container
[2024-11-06 08:07:19,333 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:07:19" (1/1) ...
[2024-11-06 08:07:19,370 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:07:19,538 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-48.i[916,929]
[2024-11-06 08:07:19,615 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:07:19,627 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:07:19,636 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-48.i[916,929]
[2024-11-06 08:07:19,669 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:07:19,689 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:07:19,690 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:07:19 WrapperNode
[2024-11-06 08:07:19,690 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:07:19,691 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:07:19,691 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:07:19,691 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:07:19,696 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:07:19" (1/1) ...
[2024-11-06 08:07:19,710 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:07:19" (1/1) ...
[2024-11-06 08:07:19,751 INFO  L138                Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 187
[2024-11-06 08:07:19,751 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:07:19,752 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:07:19,752 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:07:19,752 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:07:19,766 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:07:19" (1/1) ...
[2024-11-06 08:07:19,766 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:07:19" (1/1) ...
[2024-11-06 08:07:19,770 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:07:19" (1/1) ...
[2024-11-06 08:07:19,790 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 08:07:19,791 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:07:19" (1/1) ...
[2024-11-06 08:07:19,791 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:07:19" (1/1) ...
[2024-11-06 08:07:19,801 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:07:19" (1/1) ...
[2024-11-06 08:07:19,805 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:07:19" (1/1) ...
[2024-11-06 08:07:19,808 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:07:19" (1/1) ...
[2024-11-06 08:07:19,810 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:07:19" (1/1) ...
[2024-11-06 08:07:19,814 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:07:19,815 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:07:19,815 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:07:19,815 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:07:19,816 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:07:19" (1/1) ...
[2024-11-06 08:07:19,825 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:07:19,839 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:07:19,853 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 08:07:19,859 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 08:07:19,883 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:07:19,884 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:07:19,884 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:07:19,884 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:07:19,884 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:07:19,884 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:07:19,995 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:07:19,997 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:07:26,257 INFO  L?                        ?]: Removed 30 outVars from TransFormulas that were not future-live.
[2024-11-06 08:07:26,258 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:07:26,274 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:07:26,274 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:07:26,275 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:07:26 BoogieIcfgContainer
[2024-11-06 08:07:26,275 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:07:26,277 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:07:26,277 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:07:26,280 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:07:26,280 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:07:19" (1/3) ...
[2024-11-06 08:07:26,281 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bed0c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:07:26, skipping insertion in model container
[2024-11-06 08:07:26,281 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:07:19" (2/3) ...
[2024-11-06 08:07:26,281 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bed0c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:07:26, skipping insertion in model container
[2024-11-06 08:07:26,282 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:07:26" (3/3) ...
[2024-11-06 08:07:26,283 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-48.i
[2024-11-06 08:07:26,298 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:07:26,298 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:07:26,355 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:07:26,360 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;@93a2073, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:07:26,361 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:07:26,365 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 83 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 56 states have internal predecessors, (78), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2024-11-06 08:07:26,380 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 166
[2024-11-06 08:07:26,380 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:07:26,381 INFO  L215           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:26,382 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:07:26,388 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:07:26,388 INFO  L85        PathProgramCache]: Analyzing trace with hash -1203948473, now seen corresponding path program 1 times
[2024-11-06 08:07:26,404 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:07:26,404 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883182844]
[2024-11-06 08:07:26,405 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:07:26,405 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 08:07:26,406 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:07:26,409 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 08:07:26,410 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 08:07:26,952 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:07:26,975 INFO  L255         TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 08:07:26,987 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:07:27,052 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked.
[2024-11-06 08:07:27,052 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:07:27,053 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:07:27,053 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883182844]
[2024-11-06 08:07:27,057 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [883182844] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:07:27,057 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:07:27,057 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 08:07:27,059 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888668440]
[2024-11-06 08:07:27,060 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:07:27,065 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 08:07:27,065 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:07:27,090 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 08:07:27,091 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:07:27,094 INFO  L87              Difference]: Start difference. First operand  has 83 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 56 states have internal predecessors, (78), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)
[2024-11-06 08:07:27,128 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:07:27,129 INFO  L93              Difference]: Finished difference Result 159 states and 275 transitions.
[2024-11-06 08:07:27,130 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 08:07:27,131 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 165
[2024-11-06 08:07:27,131 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:07:27,142 INFO  L225             Difference]: With dead ends: 159
[2024-11-06 08:07:27,142 INFO  L226             Difference]: Without dead ends: 79
[2024-11-06 08:07:27,147 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 164 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 08:07:27,150 INFO  L432           NwaCegarLoop]: 121 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, 121 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 08:07:27,151 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 08:07:27,163 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 79 states.
[2024-11-06 08:07:27,186 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79.
[2024-11-06 08:07:27,187 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 79 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 52 states have internal predecessors, (71), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2024-11-06 08:07:27,189 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 121 transitions.
[2024-11-06 08:07:27,192 INFO  L78                 Accepts]: Start accepts. Automaton has 79 states and 121 transitions. Word has length 165
[2024-11-06 08:07:27,192 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:07:27,192 INFO  L471      AbstractCegarLoop]: Abstraction has 79 states and 121 transitions.
[2024-11-06 08:07:27,193 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)
[2024-11-06 08:07:27,193 INFO  L276                IsEmpty]: Start isEmpty. Operand 79 states and 121 transitions.
[2024-11-06 08:07:27,215 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 166
[2024-11-06 08:07:27,216 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:07:27,216 INFO  L215           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:27,238 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 08:07:27,419 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 08:07:27,420 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:07:27,421 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:07:27,422 INFO  L85        PathProgramCache]: Analyzing trace with hash 1265619665, now seen corresponding path program 1 times
[2024-11-06 08:07:27,422 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:07:27,423 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685642067]
[2024-11-06 08:07:27,423 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:07:27,424 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 08:07:27,425 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:07:27,428 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 08:07:27,429 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 08:07:27,909 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:07:27,929 INFO  L255         TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 08:07:27,935 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:07:29,600 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2024-11-06 08:07:29,601 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:07:29,603 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:07:29,603 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685642067]
[2024-11-06 08:07:29,603 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [685642067] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:07:29,603 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:07:29,603 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-06 08:07:29,603 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463114929]
[2024-11-06 08:07:29,604 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:07:29,605 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-06 08:07:29,605 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:07:29,606 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-06 08:07:29,606 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-06 08:07:29,608 INFO  L87              Difference]: Start difference. First operand 79 states and 121 transitions. Second operand  has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2024-11-06 08:07:34,093 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:07:38,104 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:07:41,009 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:07:45,220 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:07:49,225 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:07:49,226 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:07:49,226 INFO  L93              Difference]: Finished difference Result 232 states and 358 transitions.
[2024-11-06 08:07:49,294 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-06 08:07:49,294 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 165
[2024-11-06 08:07:49,295 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:07:49,297 INFO  L225             Difference]: With dead ends: 232
[2024-11-06 08:07:49,298 INFO  L226             Difference]: Without dead ends: 156
[2024-11-06 08:07:49,299 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-06 08:07:49,300 INFO  L432           NwaCegarLoop]: 117 mSDtfsCounter, 82 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 51 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time
[2024-11-06 08:07:49,300 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 455 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 20 Invalid, 4 Unknown, 0 Unchecked, 19.5s Time]
[2024-11-06 08:07:49,301 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 156 states.
[2024-11-06 08:07:49,334 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 125.
[2024-11-06 08:07:49,335 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 125 states, 72 states have (on average 1.2638888888888888) internal successors, (91), 72 states have internal predecessors, (91), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2024-11-06 08:07:49,340 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 191 transitions.
[2024-11-06 08:07:49,341 INFO  L78                 Accepts]: Start accepts. Automaton has 125 states and 191 transitions. Word has length 165
[2024-11-06 08:07:49,345 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:07:49,345 INFO  L471      AbstractCegarLoop]: Abstraction has 125 states and 191 transitions.
[2024-11-06 08:07:49,345 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2024-11-06 08:07:49,346 INFO  L276                IsEmpty]: Start isEmpty. Operand 125 states and 191 transitions.
[2024-11-06 08:07:49,348 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 167
[2024-11-06 08:07:49,351 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:07:49,351 INFO  L215           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:49,375 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2024-11-06 08:07:49,552 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 08:07:49,553 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:07:49,553 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:07:49,553 INFO  L85        PathProgramCache]: Analyzing trace with hash 689033448, now seen corresponding path program 1 times
[2024-11-06 08:07:49,554 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:07:49,554 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477225057]
[2024-11-06 08:07:49,554 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:07:49,554 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 08:07:49,555 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:07:49,556 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 08:07:49,558 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 08:07:49,998 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:07:50,026 INFO  L255         TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 08:07:50,031 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:07:50,863 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 568 proven. 24 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked.
[2024-11-06 08:07:50,863 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:07:52,183 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 48 proven. 24 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked.
[2024-11-06 08:07:52,183 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:07:52,183 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477225057]
[2024-11-06 08:07:52,184 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [477225057] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 08:07:52,184 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 08:07:52,184 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-06 08:07:52,184 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032839696]
[2024-11-06 08:07:52,184 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 08:07:52,185 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-06 08:07:52,185 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:07:52,186 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-06 08:07:52,187 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-06 08:07:52,187 INFO  L87              Difference]: Start difference. First operand 125 states and 191 transitions. Second operand  has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34)
[2024-11-06 08:07:57,618 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:08:01,622 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:08:05,627 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:08:05,636 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:08:05,637 INFO  L93              Difference]: Finished difference Result 217 states and 323 transitions.
[2024-11-06 08:08:05,704 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-06 08:08:05,705 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 166
[2024-11-06 08:08:05,706 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:08:05,708 INFO  L225             Difference]: With dead ends: 217
[2024-11-06 08:08:05,708 INFO  L226             Difference]: Without dead ends: 141
[2024-11-06 08:08:05,709 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 324 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2024-11-06 08:08:05,710 INFO  L432           NwaCegarLoop]: 89 mSDtfsCounter, 132 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 42 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time
[2024-11-06 08:08:05,710 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 215 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 133 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time]
[2024-11-06 08:08:05,711 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 141 states.
[2024-11-06 08:08:05,728 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 133.
[2024-11-06 08:08:05,729 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 133 states, 78 states have (on average 1.2307692307692308) internal successors, (96), 78 states have internal predecessors, (96), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2024-11-06 08:08:05,730 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 196 transitions.
[2024-11-06 08:08:05,731 INFO  L78                 Accepts]: Start accepts. Automaton has 133 states and 196 transitions. Word has length 166
[2024-11-06 08:08:05,732 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:08:05,732 INFO  L471      AbstractCegarLoop]: Abstraction has 133 states and 196 transitions.
[2024-11-06 08:08:05,732 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34)
[2024-11-06 08:08:05,732 INFO  L276                IsEmpty]: Start isEmpty. Operand 133 states and 196 transitions.
[2024-11-06 08:08:05,738 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2024-11-06 08:08:05,738 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:08:05,739 INFO  L215           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:08:05,761 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 08:08:05,939 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 08:08:05,940 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:08:05,940 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:08:05,940 INFO  L85        PathProgramCache]: Analyzing trace with hash 1050524552, now seen corresponding path program 1 times
[2024-11-06 08:08:05,941 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:08:05,941 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109808178]
[2024-11-06 08:08:05,941 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:08:05,941 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 08:08:05,942 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:08:05,945 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 08:08:05,946 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 08:08:06,968 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:08:06,996 INFO  L255         TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 79 conjuncts are in the unsatisfiable core
[2024-11-06 08:08:07,007 INFO  L278         TraceCheckSpWp]: Computing forward predicates...