/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-59.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:08:51,183 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:08:51,255 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 08:08:51,262 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:08:51,262 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:08:51,294 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:08:51,295 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:08:51,295 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:08:51,296 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:08:51,296 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:08:51,297 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:08:51,298 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:08:51,299 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:08:51,300 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:08:51,300 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:08:51,303 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:08:51,303 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:08:51,304 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:08:51,304 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:08:51,304 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:08:51,305 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:08:51,309 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:08:51,309 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:08:51,309 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:08:51,310 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:08:51,310 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:08:51,310 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:08:51,310 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:08:51,311 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:08:51,311 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:08:51,311 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:08:51,312 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:08:51,312 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:08:51,316 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:08:51,316 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:08:51,316 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:08:51,316 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:08:51,317 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:08:51,317 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:08:51,317 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:08:51,317 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:08:51,320 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:08:51,320 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:08:51,321 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:08:51,321 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:08:51,608 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:08:51,635 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:08:51,639 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:08:51,640 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:08:51,640 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:08:51,642 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-59.i
[2024-11-06 08:08:53,271 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:08:53,497 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:08:53,497 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-59.i
[2024-11-06 08:08:53,510 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf53d5145/c9a8d947e83544bfaecd228920c49786/FLAG430f7ba95
[2024-11-06 08:08:53,856 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf53d5145/c9a8d947e83544bfaecd228920c49786
[2024-11-06 08:08:53,858 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:08:53,860 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:08:53,861 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:08:53,862 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:08:53,866 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:08:53,867 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:08:53" (1/1) ...
[2024-11-06 08:08:53,868 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70103163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:53, skipping insertion in model container
[2024-11-06 08:08:53,868 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:08:53" (1/1) ...
[2024-11-06 08:08:53,904 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:08:54,068 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-59.i[916,929]
[2024-11-06 08:08:54,143 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:08:54,170 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:08:54,184 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-59.i[916,929]
[2024-11-06 08:08:54,262 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:08:54,292 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:08:54,293 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:54 WrapperNode
[2024-11-06 08:08:54,293 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:08:54,294 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:08:54,294 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:08:54,294 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:08:54,302 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:54" (1/1) ...
[2024-11-06 08:08:54,316 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:54" (1/1) ...
[2024-11-06 08:08:54,349 INFO  L138                Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 165
[2024-11-06 08:08:54,350 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:08:54,351 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:08:54,351 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:08:54,351 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:08:54,374 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:54" (1/1) ...
[2024-11-06 08:08:54,374 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:54" (1/1) ...
[2024-11-06 08:08:54,381 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:54" (1/1) ...
[2024-11-06 08:08:54,399 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 08:08:54,399 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:54" (1/1) ...
[2024-11-06 08:08:54,399 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:54" (1/1) ...
[2024-11-06 08:08:54,410 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:54" (1/1) ...
[2024-11-06 08:08:54,414 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:54" (1/1) ...
[2024-11-06 08:08:54,417 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:54" (1/1) ...
[2024-11-06 08:08:54,420 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:54" (1/1) ...
[2024-11-06 08:08:54,425 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:08:54,426 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:08:54,426 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:08:54,426 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:08:54,429 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:54" (1/1) ...
[2024-11-06 08:08:54,446 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:08:54,464 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:08:54,491 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 08:08:54,495 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 08:08:54,525 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:08:54,527 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:08:54,527 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:08:54,527 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:08:54,527 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:08:54,529 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:08:54,638 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:08:54,642 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:09:07,501 INFO  L?                        ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-11-06 08:09:07,501 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:09:07,520 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:09:07,520 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:09:07,521 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:09:07 BoogieIcfgContainer
[2024-11-06 08:09:07,521 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:09:07,524 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:09:07,524 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:09:07,527 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:09:07,528 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:08:53" (1/3) ...
[2024-11-06 08:09:07,528 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4504465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:09:07, skipping insertion in model container
[2024-11-06 08:09:07,529 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:54" (2/3) ...
[2024-11-06 08:09:07,529 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4504465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:09:07, skipping insertion in model container
[2024-11-06 08:09:07,529 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:09:07" (3/3) ...
[2024-11-06 08:09:07,531 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-59.i
[2024-11-06 08:09:07,552 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:09:07,552 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:09:07,610 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:09:07,615 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;@36656383, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:09:07,615 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:09:07,620 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 75 states, 51 states have (on average 1.4901960784313726) internal successors, (76), 52 states have internal predecessors, (76), 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 08:09:07,635 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2024-11-06 08:09:07,635 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:09:07,636 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]
[2024-11-06 08:09:07,637 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:09:07,643 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:09:07,644 INFO  L85        PathProgramCache]: Analyzing trace with hash 1757905294, now seen corresponding path program 1 times
[2024-11-06 08:09:07,662 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:09:07,663 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597298675]
[2024-11-06 08:09:07,663 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:09:07,663 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 08:09:07,664 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:09:07,667 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 08:09:07,670 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 08:09:08,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:09:08,113 INFO  L255         TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 08:09:08,128 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:09:08,176 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 08:09:08,176 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:09:08,179 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:09:08,180 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597298675]
[2024-11-06 08:09:08,180 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597298675] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:09:08,181 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:09:08,181 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 08:09:08,183 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741728693]
[2024-11-06 08:09:08,183 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:09:08,192 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 08:09:08,193 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:09:08,223 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 08:09:08,224 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:09:08,227 INFO  L87              Difference]: Start difference. First operand  has 75 states, 51 states have (on average 1.4901960784313726) internal successors, (76), 52 states have internal predecessors, (76), 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 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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 08:09:08,261 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:09:08,262 INFO  L93              Difference]: Finished difference Result 143 states and 251 transitions.
[2024-11-06 08:09:08,263 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 08:09:08,264 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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 140
[2024-11-06 08:09:08,264 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:09:08,272 INFO  L225             Difference]: With dead ends: 143
[2024-11-06 08:09:08,273 INFO  L226             Difference]: Without dead ends: 71
[2024-11-06 08:09:08,280 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 139 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 08:09:08,285 INFO  L432           NwaCegarLoop]: 111 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, 111 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 08:09:08,287 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 08:09:08,305 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2024-11-06 08:09:08,337 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71.
[2024-11-06 08:09:08,341 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 71 states, 48 states have (on average 1.4375) internal successors, (69), 48 states have internal predecessors, (69), 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 08:09:08,346 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 111 transitions.
[2024-11-06 08:09:08,351 INFO  L78                 Accepts]: Start accepts. Automaton has 71 states and 111 transitions. Word has length 140
[2024-11-06 08:09:08,351 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:09:08,352 INFO  L471      AbstractCegarLoop]: Abstraction has 71 states and 111 transitions.
[2024-11-06 08:09:08,352 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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 08:09:08,352 INFO  L276                IsEmpty]: Start isEmpty. Operand 71 states and 111 transitions.
[2024-11-06 08:09:08,356 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2024-11-06 08:09:08,356 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:09:08,356 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]
[2024-11-06 08:09:08,374 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 08:09:08,557 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 08:09:08,558 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:09:08,558 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:09:08,559 INFO  L85        PathProgramCache]: Analyzing trace with hash -2091457580, now seen corresponding path program 1 times
[2024-11-06 08:09:08,560 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:09:08,560 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146145377]
[2024-11-06 08:09:08,560 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:09:08,560 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 08:09:08,561 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:09:08,562 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 08:09:08,564 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 08:09:09,014 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:09:09,031 INFO  L255         TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-06 08:09:09,038 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:09:09,412 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked.
[2024-11-06 08:09:09,412 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:09:09,413 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:09:09,413 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146145377]
[2024-11-06 08:09:09,413 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [146145377] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:09:09,413 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:09:09,414 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-06 08:09:09,414 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596979872]
[2024-11-06 08:09:09,414 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:09:09,415 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-06 08:09:09,416 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:09:09,417 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-06 08:09:09,417 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-06 08:09:09,417 INFO  L87              Difference]: Start difference. First operand 71 states and 111 transitions. Second operand  has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-06 08:09:14,999 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:09:17,603 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:09:17,671 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:09:17,672 INFO  L93              Difference]: Finished difference Result 146 states and 224 transitions.
[2024-11-06 08:09:17,710 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-06 08:09:17,711 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 140
[2024-11-06 08:09:17,712 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:09:17,713 INFO  L225             Difference]: With dead ends: 146
[2024-11-06 08:09:17,714 INFO  L226             Difference]: Without dead ends: 78
[2024-11-06 08:09:17,715 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156
[2024-11-06 08:09:17,716 INFO  L432           NwaCegarLoop]: 70 mSDtfsCounter, 120 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 88 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time
[2024-11-06 08:09:17,716 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 166 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 142 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time]
[2024-11-06 08:09:17,717 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 78 states.
[2024-11-06 08:09:17,733 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74.
[2024-11-06 08:09:17,733 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 74 states, 50 states have (on average 1.26) internal successors, (63), 50 states have internal predecessors, (63), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-06 08:09:17,735 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions.
[2024-11-06 08:09:17,735 INFO  L78                 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 140
[2024-11-06 08:09:17,736 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:09:17,737 INFO  L471      AbstractCegarLoop]: Abstraction has 74 states and 105 transitions.
[2024-11-06 08:09:17,737 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-06 08:09:17,737 INFO  L276                IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions.
[2024-11-06 08:09:17,741 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2024-11-06 08:09:17,741 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:09:17,742 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]
[2024-11-06 08:09:17,759 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 08:09:17,943 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 08:09:17,944 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:09:17,944 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:09:17,944 INFO  L85        PathProgramCache]: Analyzing trace with hash 1475538645, now seen corresponding path program 1 times
[2024-11-06 08:09:17,945 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:09:17,945 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385677728]
[2024-11-06 08:09:17,945 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:09:17,946 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 08:09:17,946 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:09:17,947 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 08:09:17,948 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 08:09:18,303 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:09:18,319 INFO  L255         TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-06 08:09:18,326 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:09:18,389 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 08:09:18,389 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:09:18,390 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:09:18,390 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385677728]
[2024-11-06 08:09:18,390 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385677728] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:09:18,390 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:09:18,390 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-06 08:09:18,391 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011479858]
[2024-11-06 08:09:18,391 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:09:18,391 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-06 08:09:18,392 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:09:18,392 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-06 08:09:18,393 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 08:09:18,393 INFO  L87              Difference]: Start difference. First operand 74 states and 105 transitions. Second operand  has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 08:09:22,507 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-06 08:09:22,512 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:09:22,512 INFO  L93              Difference]: Finished difference Result 145 states and 207 transitions.
[2024-11-06 08:09:22,549 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-06 08:09:22,549 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 141
[2024-11-06 08:09:22,550 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:09:22,551 INFO  L225             Difference]: With dead ends: 145
[2024-11-06 08:09:22,551 INFO  L226             Difference]: Without dead ends: 74
[2024-11-06 08:09:22,552 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 08:09:22,553 INFO  L432           NwaCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2024-11-06 08:09:22,554 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 197 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time]
[2024-11-06 08:09:22,555 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 74 states.
[2024-11-06 08:09:22,575 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74.
[2024-11-06 08:09:22,576 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 74 states, 50 states have (on average 1.24) internal successors, (62), 50 states have internal predecessors, (62), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-06 08:09:22,581 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 104 transitions.
[2024-11-06 08:09:22,581 INFO  L78                 Accepts]: Start accepts. Automaton has 74 states and 104 transitions. Word has length 141
[2024-11-06 08:09:22,582 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:09:22,582 INFO  L471      AbstractCegarLoop]: Abstraction has 74 states and 104 transitions.
[2024-11-06 08:09:22,583 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 08:09:22,583 INFO  L276                IsEmpty]: Start isEmpty. Operand 74 states and 104 transitions.
[2024-11-06 08:09:22,588 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2024-11-06 08:09:22,589 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:09:22,589 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]
[2024-11-06 08:09:22,603 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2024-11-06 08:09:22,790 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 08:09:22,790 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:09:22,791 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:09:22,791 INFO  L85        PathProgramCache]: Analyzing trace with hash 2017213119, now seen corresponding path program 1 times
[2024-11-06 08:09:22,792 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:09:22,792 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920606776]
[2024-11-06 08:09:22,792 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:09:22,792 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 08:09:22,793 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:09:22,796 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 08:09:22,799 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 08:09:23,220 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:09:23,237 INFO  L255         TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-06 08:09:23,241 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:09:26,479 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 182 proven. 108 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked.
[2024-11-06 08:09:26,479 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:09:27,801 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:09:27,801 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920606776]
[2024-11-06 08:09:27,802 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920606776] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:09:27,802 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964866311]
[2024-11-06 08:09:27,802 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:09:27,802 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:09:27,802 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:09:27,822 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 08:09:27,824 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 08:09:28,105 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:09:28,144 INFO  L255         TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-06 08:09:28,149 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:09:32,866 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 136 proven. 159 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked.
[2024-11-06 08:09:32,866 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:09:33,671 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [964866311] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:09:33,671 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 08:09:33,672 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 16
[2024-11-06 08:09:33,672 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016274419]
[2024-11-06 08:09:33,672 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 08:09:33,673 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-06 08:09:33,673 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:09:33,674 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-06 08:09:33,674 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380
[2024-11-06 08:09:33,674 INFO  L87              Difference]: Start difference. First operand 74 states and 104 transitions. Second operand  has 16 states, 16 states have (on average 4.625) internal successors, (74), 16 states have internal predecessors, (74), 5 states have call successors, (40), 5 states have call predecessors, (40), 7 states have return successors, (41), 4 states have call predecessors, (41), 5 states have call successors, (41)
[2024-11-06 08:09:42,175 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:09:44,155 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-06 08:09:49,247 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-06 08:09:50,686 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:09:50,686 INFO  L93              Difference]: Finished difference Result 192 states and 259 transitions.
[2024-11-06 08:09:50,687 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2024-11-06 08:09:50,687 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 4.625) internal successors, (74), 16 states have internal predecessors, (74), 5 states have call successors, (40), 5 states have call predecessors, (40), 7 states have return successors, (41), 4 states have call predecessors, (41), 5 states have call successors, (41) Word has length 142
[2024-11-06 08:09:50,688 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:09:50,689 INFO  L225             Difference]: With dead ends: 192
[2024-11-06 08:09:50,689 INFO  L226             Difference]: Without dead ends: 121
[2024-11-06 08:09:50,690 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=151, Invalid=499, Unknown=0, NotChecked=0, Total=650
[2024-11-06 08:09:50,692 INFO  L432           NwaCegarLoop]: 80 mSDtfsCounter, 171 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time
[2024-11-06 08:09:50,693 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 481 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 630 Invalid, 2 Unknown, 0 Unchecked, 16.3s Time]
[2024-11-06 08:09:50,694 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 121 states.
[2024-11-06 08:09:50,705 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 89.
[2024-11-06 08:09:50,706 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 62 states have (on average 1.2096774193548387) internal successors, (75), 62 states have internal predecessors, (75), 21 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-06 08:09:50,707 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions.
[2024-11-06 08:09:50,707 INFO  L78                 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 142
[2024-11-06 08:09:50,708 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:09:50,708 INFO  L471      AbstractCegarLoop]: Abstraction has 89 states and 117 transitions.
[2024-11-06 08:09:50,708 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 4.625) internal successors, (74), 16 states have internal predecessors, (74), 5 states have call successors, (40), 5 states have call predecessors, (40), 7 states have return successors, (41), 4 states have call predecessors, (41), 5 states have call successors, (41)
[2024-11-06 08:09:50,709 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions.
[2024-11-06 08:09:50,710 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2024-11-06 08:09:50,710 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:09:50,711 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]
[2024-11-06 08:09:50,727 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 (5)] Forceful destruction successful, exit code 0
[2024-11-06 08:09:50,941 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-06 08:09:51,111 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 08:09:51,112 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:09:51,113 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:09:51,113 INFO  L85        PathProgramCache]: Analyzing trace with hash 1199564669, now seen corresponding path program 1 times
[2024-11-06 08:09:51,113 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:09:51,113 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462872565]
[2024-11-06 08:09:51,113 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:09:51,113 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 08:09:51,113 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:09:51,115 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 08:09:51,116 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 08:09:51,439 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:09:51,454 INFO  L255         TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-06 08:09:51,457 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:09:52,709 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 08:09:52,709 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:09:52,709 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:09:52,710 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462872565]
[2024-11-06 08:09:52,710 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462872565] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:09:52,710 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:09:52,710 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-06 08:09:52,710 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734665578]
[2024-11-06 08:09:52,710 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:09:52,710 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-06 08:09:52,711 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:09:52,711 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-06 08:09:52,711 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-06 08:09:52,712 INFO  L87              Difference]: Start difference. First operand 89 states and 117 transitions. Second operand  has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 08:09:56,973 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:10:00,222 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:10:02,684 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:10:07,021 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:10:11,149 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:10:11,150 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:10:11,150 INFO  L93              Difference]: Finished difference Result 281 states and 370 transitions.
[2024-11-06 08:10:11,193 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-06 08:10:11,193 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 142
[2024-11-06 08:10:11,194 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:10:11,196 INFO  L225             Difference]: With dead ends: 281
[2024-11-06 08:10:11,196 INFO  L226             Difference]: Without dead ends: 195
[2024-11-06 08:10:11,196 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-06 08:10:11,197 INFO  L432           NwaCegarLoop]: 123 mSDtfsCounter, 92 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 43 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time
[2024-11-06 08:10:11,198 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 308 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 16 Invalid, 3 Unknown, 0 Unchecked, 18.4s Time]
[2024-11-06 08:10:11,199 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 195 states.
[2024-11-06 08:10:11,223 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 170.
[2024-11-06 08:10:11,224 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 170 states, 117 states have (on average 1.1965811965811965) internal successors, (140), 117 states have internal predecessors, (140), 42 states have call successors, (42), 10 states have call predecessors, (42), 10 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2024-11-06 08:10:11,225 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 224 transitions.
[2024-11-06 08:10:11,225 INFO  L78                 Accepts]: Start accepts. Automaton has 170 states and 224 transitions. Word has length 142
[2024-11-06 08:10:11,226 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:10:11,226 INFO  L471      AbstractCegarLoop]: Abstraction has 170 states and 224 transitions.
[2024-11-06 08:10:11,226 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 08:10:11,226 INFO  L276                IsEmpty]: Start isEmpty. Operand 170 states and 224 transitions.
[2024-11-06 08:10:11,228 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 145
[2024-11-06 08:10:11,228 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:10:11,228 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 08:10:11,243 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 (7)] Forceful destruction successful, exit code 0
[2024-11-06 08:10:11,429 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 08:10:11,429 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:10:11,430 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:10:11,430 INFO  L85        PathProgramCache]: Analyzing trace with hash -2143517372, now seen corresponding path program 1 times
[2024-11-06 08:10:11,431 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:10:11,431 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866699135]
[2024-11-06 08:10:11,431 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:10:11,431 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 08:10:11,431 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:10:11,432 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 08:10:11,433 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 08:10:12,145 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:10:12,164 INFO  L255         TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 48 conjuncts are in the unsatisfiable core
[2024-11-06 08:10:12,169 INFO  L278         TraceCheckSpWp]: Computing forward predicates...