/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-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d64_e0.c


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 06:26:09,410 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 06:26:09,482 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2024-11-06 06:26:09,488 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 06:26:09,488 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 06:26:09,522 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 06:26:09,523 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 06:26:09,523 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 06:26:09,524 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 06:26:09,524 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 06:26:09,524 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 06:26:09,525 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 06:26:09,527 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 06:26:09,530 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 06:26:09,531 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 06:26:09,531 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 06:26:09,531 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 06:26:09,532 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 06:26:09,532 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 06:26:09,532 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 06:26:09,532 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 06:26:09,533 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 06:26:09,533 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 06:26:09,533 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 06:26:09,534 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 06:26:09,534 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 06:26:09,534 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 06:26:09,534 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 06:26:09,535 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 06:26:09,535 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 06:26:09,535 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 06:26:09,535 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 06:26:09,536 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 06:26:09,536 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 06:26:09,539 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 06:26:09,539 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 06:26:09,539 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2024-11-06 06:26:09,540 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 06:26:09,540 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 06:26:09,540 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 06:26:09,540 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 06:26:09,541 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF
[2024-11-06 06:26:09,809 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 06:26:09,837 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 06:26:09,840 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 06:26:09,841 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 06:26:09,842 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 06:26:09,843 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d64_e0.c
[2024-11-06 06:26:11,546 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 06:26:11,929 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 06:26:11,929 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d64_e0.c
[2024-11-06 06:26:11,953 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51915aa34/6dde335eba1b444ebbafb5e989d12f6a/FLAG5e770d324
[2024-11-06 06:26:11,975 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51915aa34/6dde335eba1b444ebbafb5e989d12f6a
[2024-11-06 06:26:11,979 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 06:26:11,981 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 06:26:11,984 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 06:26:11,984 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 06:26:11,992 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 06:26:11,994 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:26:11" (1/1) ...
[2024-11-06 06:26:11,995 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ad0faf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:26:11, skipping insertion in model container
[2024-11-06 06:26:11,995 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:26:11" (1/1) ...
[2024-11-06 06:26:12,076 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 06:26:12,292 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d64_e0.c[1280,1293]
[2024-11-06 06:26:12,771 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 06:26:12,785 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 06:26:12,796 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d64_e0.c[1280,1293]
[2024-11-06 06:26:12,963 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 06:26:12,980 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 06:26:12,982 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:26:12 WrapperNode
[2024-11-06 06:26:12,982 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 06:26:12,983 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 06:26:12,983 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 06:26:12,983 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 06:26:12,990 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:26:12" (1/1) ...
[2024-11-06 06:26:13,053 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:26:12" (1/1) ...
[2024-11-06 06:26:13,144 INFO  L138                Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2549
[2024-11-06 06:26:13,145 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 06:26:13,146 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 06:26:13,146 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 06:26:13,146 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 06:26:13,160 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:26:12" (1/1) ...
[2024-11-06 06:26:13,160 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:26:12" (1/1) ...
[2024-11-06 06:26:13,190 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:26:12" (1/1) ...
[2024-11-06 06:26:13,262 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 06:26:13,263 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:26:12" (1/1) ...
[2024-11-06 06:26:13,263 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:26:12" (1/1) ...
[2024-11-06 06:26:13,319 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:26:12" (1/1) ...
[2024-11-06 06:26:13,332 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:26:12" (1/1) ...
[2024-11-06 06:26:13,350 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:26:12" (1/1) ...
[2024-11-06 06:26:13,365 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:26:12" (1/1) ...
[2024-11-06 06:26:13,388 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 06:26:13,389 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 06:26:13,389 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 06:26:13,389 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 06:26:13,390 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:26:12" (1/1) ...
[2024-11-06 06:26:13,396 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 06:26:13,407 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 06:26:13,423 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 06:26:13,426 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 06:26:13,452 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 06:26:13,452 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 06:26:13,452 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 06:26:13,452 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 06:26:13,452 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 06:26:13,453 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 06:26:13,839 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 06:26:13,841 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 06:26:15,997 INFO  L?                        ?]: Removed 705 outVars from TransFormulas that were not future-live.
[2024-11-06 06:26:15,997 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 06:26:16,009 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 06:26:16,009 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 06:26:16,010 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:26:16 BoogieIcfgContainer
[2024-11-06 06:26:16,010 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 06:26:16,013 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 06:26:16,013 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 06:26:16,018 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 06:26:16,018 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:26:11" (1/3) ...
[2024-11-06 06:26:16,019 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d339077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:26:16, skipping insertion in model container
[2024-11-06 06:26:16,019 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:26:12" (2/3) ...
[2024-11-06 06:26:16,019 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d339077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:26:16, skipping insertion in model container
[2024-11-06 06:26:16,020 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:26:16" (3/3) ...
[2024-11-06 06:26:16,022 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w64_d64_e0.c
[2024-11-06 06:26:16,039 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 06:26:16,039 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 06:26:16,098 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 06:26:16,106 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;@470c73eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 06:26:16,106 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 06:26:16,111 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-06 06:26:16,119 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-11-06 06:26:16,120 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 06:26:16,120 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 06:26:16,123 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 06:26:16,127 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 06:26:16,128 INFO  L85        PathProgramCache]: Analyzing trace with hash 1944675641, now seen corresponding path program 1 times
[2024-11-06 06:26:16,146 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 06:26:16,147 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934991066]
[2024-11-06 06:26:16,147 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 06:26:16,147 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 06:26:16,147 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 06:26:16,152 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 06:26:16,153 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 06:26:17,094 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 06:26:17,135 INFO  L255         TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 06:26:17,145 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 06:26:17,164 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-06 06:26:17,165 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 06:26:17,165 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-06 06:26:17,165 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934991066]
[2024-11-06 06:26:17,166 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934991066] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 06:26:17,167 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 06:26:17,167 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 06:26:17,169 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423968694]
[2024-11-06 06:26:17,170 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 06:26:17,173 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 06:26:17,173 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-06 06:26:17,195 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 06:26:17,195 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 06:26:17,197 INFO  L87              Difference]: Start difference. First operand  has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand  has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-06 06:26:17,211 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 06:26:17,212 INFO  L93              Difference]: Finished difference Result 35 states and 47 transitions.
[2024-11-06 06:26:17,213 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 06:26:17,214 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23
[2024-11-06 06:26:17,214 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 06:26:17,219 INFO  L225             Difference]: With dead ends: 35
[2024-11-06 06:26:17,219 INFO  L226             Difference]: Without dead ends: 17
[2024-11-06 06:26:17,222 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 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 06:26:17,226 INFO  L432           NwaCegarLoop]: 19 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, 19 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 06:26:17,227 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 06:26:17,244 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2024-11-06 06:26:17,259 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2024-11-06 06:26:17,260 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-06 06:26:17,262 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions.
[2024-11-06 06:26:17,263 INFO  L78                 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 23
[2024-11-06 06:26:17,263 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 06:26:17,263 INFO  L471      AbstractCegarLoop]: Abstraction has 17 states and 19 transitions.
[2024-11-06 06:26:17,264 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-06 06:26:17,264 INFO  L276                IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2024-11-06 06:26:17,266 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-11-06 06:26:17,266 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 06:26:17,267 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 06:26:17,293 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2024-11-06 06:26:17,467 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 06:26:17,468 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 06:26:17,469 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 06:26:17,469 INFO  L85        PathProgramCache]: Analyzing trace with hash 265954675, now seen corresponding path program 1 times
[2024-11-06 06:26:17,471 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 06:26:17,471 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400166340]
[2024-11-06 06:26:17,471 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 06:26:17,472 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 06:26:17,472 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 06:26:17,474 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 06:26:17,475 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 06:26:18,630 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 06:26:18,678 INFO  L255         TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-06 06:26:18,691 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 06:26:18,861 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-06 06:26:18,861 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 06:26:18,862 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-06 06:26:18,862 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400166340]
[2024-11-06 06:26:18,862 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [400166340] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 06:26:18,862 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 06:26:18,862 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-06 06:26:18,862 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509146710]
[2024-11-06 06:26:18,863 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 06:26:18,864 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-06 06:26:18,864 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-06 06:26:18,865 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-06 06:26:18,865 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-06 06:26:18,865 INFO  L87              Difference]: Start difference. First operand 17 states and 19 transitions. Second operand  has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-11-06 06:26:19,622 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 06:26:19,623 INFO  L93              Difference]: Finished difference Result 27 states and 32 transitions.
[2024-11-06 06:26:19,623 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-06 06:26:19,623 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23
[2024-11-06 06:26:19,624 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 06:26:19,625 INFO  L225             Difference]: With dead ends: 27
[2024-11-06 06:26:19,625 INFO  L226             Difference]: Without dead ends: 25
[2024-11-06 06:26:19,625 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-06 06:26:19,626 INFO  L432           NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-06 06:26:19,627 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-06 06:26:19,627 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2024-11-06 06:26:19,632 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2024-11-06 06:26:19,633 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-06 06:26:19,634 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions.
[2024-11-06 06:26:19,634 INFO  L78                 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 23
[2024-11-06 06:26:19,635 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 06:26:19,635 INFO  L471      AbstractCegarLoop]: Abstraction has 25 states and 30 transitions.
[2024-11-06 06:26:19,635 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-11-06 06:26:19,636 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions.
[2024-11-06 06:26:19,636 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2024-11-06 06:26:19,637 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 06:26:19,637 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1]
[2024-11-06 06:26:19,655 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 06:26:19,837 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 06:26:19,838 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 06:26:19,839 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 06:26:19,839 INFO  L85        PathProgramCache]: Analyzing trace with hash 416519459, now seen corresponding path program 1 times
[2024-11-06 06:26:19,842 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 06:26:19,842 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731606941]
[2024-11-06 06:26:19,842 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 06:26:19,843 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 06:26:19,843 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 06:26:19,846 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 06:26:19,849 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 06:26:27,131 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 06:26:27,237 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1668 conjuncts, 41 conjuncts are in the unsatisfiable core
[2024-11-06 06:26:27,268 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 06:26:28,037 INFO  L134       CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2024-11-06 06:26:28,037 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 06:26:28,389 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-06 06:26:28,392 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731606941]
[2024-11-06 06:26:28,392 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731606941] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 06:26:28,392 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1109680373]
[2024-11-06 06:26:28,392 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 06:26:28,393 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-06 06:26:28,393 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-06 06:26:28,420 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-06 06:26:28,422 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-06 06:26:31,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 06:26:31,463 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1668 conjuncts, 40 conjuncts are in the unsatisfiable core
[2024-11-06 06:26:31,494 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 06:26:31,952 INFO  L134       CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2024-11-06 06:26:31,952 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 06:26:32,126 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1109680373] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 06:26:32,126 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 06:26:32,126 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13
[2024-11-06 06:26:32,126 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370253243]
[2024-11-06 06:26:32,127 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 06:26:32,127 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-06 06:26:32,127 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-06 06:26:32,128 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-06 06:26:32,129 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240
[2024-11-06 06:26:32,129 INFO  L87              Difference]: Start difference. First operand 25 states and 30 transitions. Second operand  has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 13 states have internal predecessors, (31), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12)
[2024-11-06 06:26:34,050 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 06:26:34,051 INFO  L93              Difference]: Finished difference Result 36 states and 44 transitions.
[2024-11-06 06:26:34,051 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-06 06:26:34,051 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 13 states have internal predecessors, (31), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) Word has length 44
[2024-11-06 06:26:34,052 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 06:26:34,053 INFO  L225             Difference]: With dead ends: 36
[2024-11-06 06:26:34,053 INFO  L226             Difference]: Without dead ends: 34
[2024-11-06 06:26:34,054 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420
[2024-11-06 06:26:34,055 INFO  L432           NwaCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2024-11-06 06:26:34,055 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 98 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2024-11-06 06:26:34,056 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 34 states.
[2024-11-06 06:26:34,062 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34.
[2024-11-06 06:26:34,063 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 34 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-06 06:26:34,064 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions.
[2024-11-06 06:26:34,064 INFO  L78                 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 44
[2024-11-06 06:26:34,064 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 06:26:34,065 INFO  L471      AbstractCegarLoop]: Abstraction has 34 states and 42 transitions.
[2024-11-06 06:26:34,065 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 13 states have internal predecessors, (31), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12)
[2024-11-06 06:26:34,065 INFO  L276                IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions.
[2024-11-06 06:26:34,067 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2024-11-06 06:26:34,067 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 06:26:34,068 INFO  L215           NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1]
[2024-11-06 06:26:34,128 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 06:26:34,312 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0
[2024-11-06 06:26:34,468 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-06 06:26:34,469 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 06:26:34,470 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 06:26:34,470 INFO  L85        PathProgramCache]: Analyzing trace with hash 223728499, now seen corresponding path program 2 times
[2024-11-06 06:26:34,473 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 06:26:34,473 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131541450]
[2024-11-06 06:26:34,473 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-06 06:26:34,473 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 06:26:34,474 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 06:26:34,475 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)
[2024-11-06 06:26:34,477 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
[2024-11-06 06:26:46,631 INFO  L227   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-06 06:26:46,632 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-06 06:26:46,783 INFO  L255         TraceCheckSpWp]: Trace formula consists of 2452 conjuncts, 99 conjuncts are in the unsatisfiable core
[2024-11-06 06:26:46,811 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 06:26:50,070 INFO  L134       CoverageAnalysis]: Checked inductivity of 169 backedges. 15 proven. 64 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked.
[2024-11-06 06:26:50,071 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 06:26:56,028 WARN  L851   $PredicateComparison]: unable to prove that (let ((.cse11 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse15 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_351~0#1|)) (.cse8 (= |c_ULTIMATE.start_main_~state_370~0#1| (bvand |c_ULTIMATE.start_main_~mask_SORT_3~0#1| |c_ULTIMATE.start_main_~state_338~0#1|)))) (let ((.cse12 (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_13~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_12~0#1|)))))))) (.cse10 (not .cse8)) (.cse9 (forall ((|v_ULTIMATE.start_main_~var_341_arg_2~0#1_15| (_ BitVec 64))) (not (= (bvand |v_ULTIMATE.start_main_~var_341_arg_2~0#1_15| |c_ULTIMATE.start_main_~mask_SORT_3~0#1|) |c_ULTIMATE.start_main_~state_370~0#1|)))) (.cse3 (forall ((|v_ULTIMATE.start_main_~var_354_arg_1~0#1_16| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_368_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_395_arg_2~0#1_16| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_357_arg_1~0#1_17| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_395_arg_2~0#1_16|))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor (_ bv1 32) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse15 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_354_arg_1~0#1_16|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_357_arg_1~0#1_17|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_368_arg_1~0#1_17|))))))))))))))))))))))) (.cse0 (forall ((|v_ULTIMATE.start_main_~var_354_arg_1~0#1_16| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_368_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_395_arg_2~0#1_16| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_357_arg_1~0#1_17| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse15 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_354_arg_1~0#1_16|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_357_arg_1~0#1_17|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_368_arg_1~0#1_17|))))))))))))))) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_395_arg_2~0#1_16|)))))))) (_ bv0 8)))) (.cse4 (forall ((|v_ULTIMATE.start_main_~var_393_arg_1~0#1_17| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_394~0#1|))) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_393_arg_1~0#1_17|))))))))))) (_ bv0 8)))) (.cse6 (forall ((|v_ULTIMATE.start_main_~var_341_arg_2~0#1_15| (_ BitVec 64))) (= (bvand |v_ULTIMATE.start_main_~var_341_arg_2~0#1_15| |c_ULTIMATE.start_main_~mask_SORT_3~0#1|) |c_ULTIMATE.start_main_~state_370~0#1|)))) (and (or (let ((.cse7 (= ((_ extract 7 0) (bvand .cse11 (_ bv254 32))) (_ bv0 8)))) (let ((.cse5 (not .cse7))) (let ((.cse2 (and (or .cse9 .cse5) (or .cse10 .cse7))) (.cse1 (and (or .cse5 .cse6) (or .cse7 .cse8)))) (and (or .cse0 .cse1) (or .cse2 .cse3) (or .cse2 .cse4) (or .cse4 .cse1))))) .cse12) (or (not .cse12) (let ((.cse13 (= (_ bv0 8) ((_ extract 7 0) (bvand .cse11 (_ bv255 32)))))) (let ((.cse14 (not .cse13))) (and (or (and (or .cse10 .cse13) (or .cse9 .cse14)) (and .cse3 .cse4)) (or (and .cse0 .cse4) (and (or .cse6 .cse14) (or .cse13 .cse8)))))))))) is different from false
[2024-11-06 06:26:56,801 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-06 06:26:56,801 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131541450]
[2024-11-06 06:26:56,802 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131541450] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 06:26:56,802 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [596161434]
[2024-11-06 06:26:56,802 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-06 06:26:56,802 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-06 06:26:56,802 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-06 06:26:56,806 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-06 06:26:56,808 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process
[2024-11-06 06:27:01,290 INFO  L227   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-06 06:27:01,290 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-06 06:27:01,502 INFO  L255         TraceCheckSpWp]: Trace formula consists of 2452 conjuncts, 86 conjuncts are in the unsatisfiable core
[2024-11-06 06:27:01,525 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 06:27:39,454 INFO  L134       CoverageAnalysis]: Checked inductivity of 169 backedges. 12 proven. 55 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked.
[2024-11-06 06:27:39,454 INFO  L311         TraceCheckSpWp]: Computing backward predicates...