/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 WOLF -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-22.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-05 23:33:21,620 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-05 23:33:21,690 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-05 23:33:21,695 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-05 23:33:21,696 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-05 23:33:21,722 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-05 23:33:21,723 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-05 23:33:21,723 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-05 23:33:21,724 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-05 23:33:21,724 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-05 23:33:21,724 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-05 23:33:21,725 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-05 23:33:21,725 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-05 23:33:21,726 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-05 23:33:21,727 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-05 23:33:21,728 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-05 23:33:21,729 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-05 23:33:21,731 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-05 23:33:21,731 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-05 23:33:21,731 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-05 23:33:21,731 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-05 23:33:21,732 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-05 23:33:21,732 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-05 23:33:21,732 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-05 23:33:21,732 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-05 23:33:21,733 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-05 23:33:21,733 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-05 23:33:21,733 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-05 23:33:21,733 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-05 23:33:21,734 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-05 23:33:21,734 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-05 23:33:21,734 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-05 23:33:21,734 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-05 23:33:21,735 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-05 23:33:21,735 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 23:33:21,736 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-05 23:33:21,737 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-05 23:33:21,737 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-05 23:33:21,737 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-05 23:33:21,737 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-05 23:33:21,737 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-05 23:33:21,737 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-05 23:33:21,738 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-05 23:33:21,738 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-05 23:33:21,738 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF
[2024-11-05 23:33:21,961 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-05 23:33:21,992 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-05 23:33:21,996 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-05 23:33:21,997 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-05 23:33:21,997 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-05 23:33:21,998 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-22.i
[2024-11-05 23:33:23,420 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-05 23:33:23,604 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-05 23:33:23,604 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-22.i
[2024-11-05 23:33:23,611 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a1cf13fb/8191e17270ab49bfbb1127802dedc5d8/FLAGfc3c54c2b
[2024-11-05 23:33:23,988 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a1cf13fb/8191e17270ab49bfbb1127802dedc5d8
[2024-11-05 23:33:23,990 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-05 23:33:23,992 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-05 23:33:23,994 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-05 23:33:23,994 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-05 23:33:23,999 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-05 23:33:24,000 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:33:23" (1/1) ...
[2024-11-05 23:33:24,000 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e51f8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:24, skipping insertion in model container
[2024-11-05 23:33:24,001 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:33:23" (1/1) ...
[2024-11-05 23:33:24,020 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-05 23:33:24,211 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_amount25_file-22.i[915,928]
[2024-11-05 23:33:24,262 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 23:33:24,280 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-05 23:33:24,296 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_amount25_file-22.i[915,928]
[2024-11-05 23:33:24,322 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 23:33:24,343 INFO  L204         MainTranslator]: Completed translation
[2024-11-05 23:33:24,344 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:24 WrapperNode
[2024-11-05 23:33:24,345 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-05 23:33:24,346 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-05 23:33:24,346 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-05 23:33:24,346 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-05 23:33:24,352 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:24" (1/1) ...
[2024-11-05 23:33:24,367 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:24" (1/1) ...
[2024-11-05 23:33:24,399 INFO  L138                Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84
[2024-11-05 23:33:24,400 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-05 23:33:24,400 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-05 23:33:24,400 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-05 23:33:24,401 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-05 23:33:24,410 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:24" (1/1) ...
[2024-11-05 23:33:24,410 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:24" (1/1) ...
[2024-11-05 23:33:24,415 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:24" (1/1) ...
[2024-11-05 23:33:24,431 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].
[2024-11-05 23:33:24,431 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:24" (1/1) ...
[2024-11-05 23:33:24,432 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:24" (1/1) ...
[2024-11-05 23:33:24,438 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:24" (1/1) ...
[2024-11-05 23:33:24,444 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:24" (1/1) ...
[2024-11-05 23:33:24,446 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:24" (1/1) ...
[2024-11-05 23:33:24,448 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:24" (1/1) ...
[2024-11-05 23:33:24,451 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-05 23:33:24,452 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-05 23:33:24,452 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-05 23:33:24,452 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-05 23:33:24,453 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:24" (1/1) ...
[2024-11-05 23:33:24,458 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 23:33:24,468 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-05 23:33:24,481 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)
[2024-11-05 23:33:24,484 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
[2024-11-05 23:33:24,516 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-05 23:33:24,516 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-05 23:33:24,516 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-05 23:33:24,516 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-05 23:33:24,517 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-05 23:33:24,517 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-05 23:33:24,591 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-05 23:33:24,593 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-05 23:33:24,807 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-05 23:33:24,807 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-05 23:33:24,822 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-05 23:33:24,823 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-05 23:33:24,824 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:33:24 BoogieIcfgContainer
[2024-11-05 23:33:24,824 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-05 23:33:24,827 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-05 23:33:24,827 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-05 23:33:24,830 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-05 23:33:24,831 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 11:33:23" (1/3) ...
[2024-11-05 23:33:24,831 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8bcf1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:33:24, skipping insertion in model container
[2024-11-05 23:33:24,831 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:33:24" (2/3) ...
[2024-11-05 23:33:24,832 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8bcf1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:33:24, skipping insertion in model container
[2024-11-05 23:33:24,832 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:33:24" (3/3) ...
[2024-11-05 23:33:24,833 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-22.i
[2024-11-05 23:33:24,849 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-05 23:33:24,850 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-05 23:33:24,937 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-05 23:33:24,945 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;@386ed1e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-05 23:33:24,946 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-05 23:33:24,950 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 39 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-05 23:33:24,957 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-11-05 23:33:24,957 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:33:24,957 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:33:24,958 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:33:24,963 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:33:24,964 INFO  L85        PathProgramCache]: Analyzing trace with hash -2131587255, now seen corresponding path program 1 times
[2024-11-05 23:33:24,977 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:33:24,977 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760235433]
[2024-11-05 23:33:24,978 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:33:24,978 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
[2024-11-05 23:33:24,978 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:33:24,982 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)
[2024-11-05 23:33:24,988 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
[2024-11-05 23:33:25,165 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:33:25,170 INFO  L255         TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-05 23:33:25,177 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:33:25,205 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2024-11-05 23:33:25,206 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:33:25,207 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:33:25,207 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760235433]
[2024-11-05 23:33:25,207 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [760235433] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:33:25,208 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:33:25,208 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-05 23:33:25,209 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948071715]
[2024-11-05 23:33:25,210 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:33:25,214 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-05 23:33:25,214 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:33:25,232 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-05 23:33:25,233 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 23:33:25,235 INFO  L87              Difference]: Start difference. First operand  has 39 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-05 23:33:25,261 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:33:25,261 INFO  L93              Difference]: Finished difference Result 71 states and 109 transitions.
[2024-11-05 23:33:25,262 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-05 23:33:25,264 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 55
[2024-11-05 23:33:25,264 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:33:25,268 INFO  L225             Difference]: With dead ends: 71
[2024-11-05 23:33:25,269 INFO  L226             Difference]: Without dead ends: 35
[2024-11-05 23:33:25,271 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 23:33:25,274 INFO  L432           NwaCegarLoop]: 46 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, 46 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
[2024-11-05 23:33:25,275 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-05 23:33:25,286 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2024-11-05 23:33:25,301 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35.
[2024-11-05 23:33:25,303 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-05 23:33:25,306 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 46 transitions.
[2024-11-05 23:33:25,308 INFO  L78                 Accepts]: Start accepts. Automaton has 35 states and 46 transitions. Word has length 55
[2024-11-05 23:33:25,308 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:33:25,308 INFO  L471      AbstractCegarLoop]: Abstraction has 35 states and 46 transitions.
[2024-11-05 23:33:25,308 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-05 23:33:25,309 INFO  L276                IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions.
[2024-11-05 23:33:25,310 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-11-05 23:33:25,311 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:33:25,311 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:33:25,319 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
[2024-11-05 23:33:25,511 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
[2024-11-05 23:33:25,512 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:33:25,513 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:33:25,513 INFO  L85        PathProgramCache]: Analyzing trace with hash -1920406395, now seen corresponding path program 1 times
[2024-11-05 23:33:25,514 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:33:25,514 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149537392]
[2024-11-05 23:33:25,514 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:33:25,515 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
[2024-11-05 23:33:25,515 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:33:25,517 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)
[2024-11-05 23:33:25,525 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
[2024-11-05 23:33:25,674 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:33:25,679 INFO  L255         TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-05 23:33:25,683 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:33:26,144 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-11-05 23:33:26,144 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:33:26,145 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:33:26,145 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149537392]
[2024-11-05 23:33:26,145 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149537392] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:33:26,145 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:33:26,145 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-05 23:33:26,146 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52789689]
[2024-11-05 23:33:26,146 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:33:26,148 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-05 23:33:26,148 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:33:26,149 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-05 23:33:26,149 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-05 23:33:26,149 INFO  L87              Difference]: Start difference. First operand 35 states and 46 transitions. Second operand  has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2024-11-05 23:33:26,277 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:33:26,277 INFO  L93              Difference]: Finished difference Result 102 states and 136 transitions.
[2024-11-05 23:33:26,278 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-05 23:33:26,278 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 55
[2024-11-05 23:33:26,279 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:33:26,280 INFO  L225             Difference]: With dead ends: 102
[2024-11-05 23:33:26,281 INFO  L226             Difference]: Without dead ends: 70
[2024-11-05 23:33:26,281 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-05 23:33:26,283 INFO  L432           NwaCegarLoop]: 42 mSDtfsCounter, 37 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-05 23:33:26,283 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 114 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-05 23:33:26,284 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 70 states.
[2024-11-05 23:33:26,298 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 54.
[2024-11-05 23:33:26,298 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-05 23:33:26,300 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions.
[2024-11-05 23:33:26,300 INFO  L78                 Accepts]: Start accepts. Automaton has 54 states and 71 transitions. Word has length 55
[2024-11-05 23:33:26,300 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:33:26,301 INFO  L471      AbstractCegarLoop]: Abstraction has 54 states and 71 transitions.
[2024-11-05 23:33:26,301 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2024-11-05 23:33:26,301 INFO  L276                IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions.
[2024-11-05 23:33:26,302 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-05 23:33:26,302 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:33:26,302 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:33:26,311 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2024-11-05 23:33:26,503 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
[2024-11-05 23:33:26,504 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:33:26,504 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:33:26,504 INFO  L85        PathProgramCache]: Analyzing trace with hash 1812581011, now seen corresponding path program 1 times
[2024-11-05 23:33:26,505 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:33:26,505 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342760309]
[2024-11-05 23:33:26,505 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:33:26,506 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
[2024-11-05 23:33:26,506 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:33:26,507 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)
[2024-11-05 23:33:26,508 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
[2024-11-05 23:33:26,672 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:33:26,679 INFO  L255         TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-05 23:33:26,688 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:33:38,193 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-11-05 23:33:38,193 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:33:38,194 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:33:38,194 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342760309]
[2024-11-05 23:33:38,194 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342760309] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:33:38,194 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:33:38,194 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-05 23:33:38,194 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220613307]
[2024-11-05 23:33:38,195 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:33:38,195 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-05 23:33:38,195 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:33:38,196 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-05 23:33:38,196 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-11-05 23:33:38,196 INFO  L87              Difference]: Start difference. First operand 54 states and 71 transitions. Second operand  has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2024-11-05 23:33:38,486 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:33:38,487 INFO  L93              Difference]: Finished difference Result 112 states and 148 transitions.
[2024-11-05 23:33:38,488 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-05 23:33:38,489 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 56
[2024-11-05 23:33:38,489 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:33:38,490 INFO  L225             Difference]: With dead ends: 112
[2024-11-05 23:33:38,490 INFO  L226             Difference]: Without dead ends: 80
[2024-11-05 23:33:38,491 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156
[2024-11-05 23:33:38,494 INFO  L432           NwaCegarLoop]: 33 mSDtfsCounter, 47 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-05 23:33:38,494 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 199 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-05 23:33:38,496 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2024-11-05 23:33:38,511 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 63.
[2024-11-05 23:33:38,511 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 63 states, 46 states have (on average 1.173913043478261) internal successors, (54), 46 states have internal predecessors, (54), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-05 23:33:38,516 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 82 transitions.
[2024-11-05 23:33:38,516 INFO  L78                 Accepts]: Start accepts. Automaton has 63 states and 82 transitions. Word has length 56
[2024-11-05 23:33:38,516 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:33:38,517 INFO  L471      AbstractCegarLoop]: Abstraction has 63 states and 82 transitions.
[2024-11-05 23:33:38,517 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2024-11-05 23:33:38,517 INFO  L276                IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions.
[2024-11-05 23:33:38,518 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-05 23:33:38,518 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:33:38,519 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:33:38,527 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
[2024-11-05 23:33:38,722 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
[2024-11-05 23:33:38,723 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:33:38,724 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:33:38,724 INFO  L85        PathProgramCache]: Analyzing trace with hash 1419554001, now seen corresponding path program 1 times
[2024-11-05 23:33:38,724 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:33:38,725 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135239757]
[2024-11-05 23:33:38,725 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:33:38,725 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
[2024-11-05 23:33:38,725 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:33:38,728 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)
[2024-11-05 23:33:38,729 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
[2024-11-05 23:33:38,849 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:33:38,853 INFO  L255         TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-05 23:33:38,855 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:33:38,863 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-11-05 23:33:38,863 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:33:38,863 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:33:38,864 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135239757]
[2024-11-05 23:33:38,864 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [135239757] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:33:38,864 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:33:38,864 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-05 23:33:38,864 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465237933]
[2024-11-05 23:33:38,864 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:33:38,865 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-05 23:33:38,865 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:33:38,866 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-05 23:33:38,866 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-05 23:33:38,866 INFO  L87              Difference]: Start difference. First operand 63 states and 82 transitions. Second operand  has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2024-11-05 23:33:38,896 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:33:38,897 INFO  L93              Difference]: Finished difference Result 108 states and 140 transitions.
[2024-11-05 23:33:38,900 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-05 23:33:38,900 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 56
[2024-11-05 23:33:38,901 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:33:38,902 INFO  L225             Difference]: With dead ends: 108
[2024-11-05 23:33:38,902 INFO  L226             Difference]: Without dead ends: 76
[2024-11-05 23:33:38,903 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-05 23:33:38,903 INFO  L432           NwaCegarLoop]: 53 mSDtfsCounter, 16 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-05 23:33:38,904 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 86 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-05 23:33:38,904 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 76 states.
[2024-11-05 23:33:38,915 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 65.
[2024-11-05 23:33:38,915 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 65 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-05 23:33:38,916 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions.
[2024-11-05 23:33:38,917 INFO  L78                 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 56
[2024-11-05 23:33:38,917 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:33:38,917 INFO  L471      AbstractCegarLoop]: Abstraction has 65 states and 84 transitions.
[2024-11-05 23:33:38,917 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2024-11-05 23:33:38,917 INFO  L276                IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions.
[2024-11-05 23:33:38,919 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-05 23:33:38,919 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:33:38,919 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:33:38,927 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
[2024-11-05 23:33:39,119 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
[2024-11-05 23:33:39,120 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:33:39,121 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:33:39,121 INFO  L85        PathProgramCache]: Analyzing trace with hash 461798945, now seen corresponding path program 1 times
[2024-11-05 23:33:39,121 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:33:39,121 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833254293]
[2024-11-05 23:33:39,121 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:33:39,121 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
[2024-11-05 23:33:39,122 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:33:39,125 INFO  L229       MonitoredProcess]: Starting monitored process 6 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)
[2024-11-05 23:33:39,128 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 (6)] Waiting until timeout for monitored process
[2024-11-05 23:33:39,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:33:39,255 INFO  L255         TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-05 23:33:39,259 INFO  L278         TraceCheckSpWp]: Computing forward predicates...