/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_amount10_file-54.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-05 23:16:59,190 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-05 23:16:59,247 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 23:16:59,253 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-05 23:16:59,253 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-05 23:16:59,275 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-05 23:16:59,275 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-05 23:16:59,276 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-05 23:16:59,276 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-05 23:16:59,276 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-05 23:16:59,276 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-05 23:16:59,277 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-05 23:16:59,277 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-05 23:16:59,277 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-05 23:16:59,278 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-05 23:16:59,278 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-05 23:16:59,278 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-05 23:16:59,281 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-05 23:16:59,281 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-05 23:16:59,282 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-05 23:16:59,283 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-05 23:16:59,284 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-05 23:16:59,285 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-05 23:16:59,285 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-05 23:16:59,285 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-05 23:16:59,285 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-05 23:16:59,285 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-05 23:16:59,285 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-05 23:16:59,285 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-05 23:16:59,286 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-05 23:16:59,286 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-05 23:16:59,286 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-05 23:16:59,286 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-05 23:16:59,286 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-05 23:16:59,286 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 23:16:59,286 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-05 23:16:59,287 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-05 23:16:59,287 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-05 23:16:59,287 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-05 23:16:59,287 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-05 23:16:59,287 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-05 23:16:59,289 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-05 23:16:59,289 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-05 23:16:59,289 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-05 23:16:59,289 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF
[2024-11-05 23:16:59,465 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-05 23:16:59,488 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-05 23:16:59,491 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-05 23:16:59,492 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-05 23:16:59,492 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-05 23:16:59,493 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-54.i
[2024-11-05 23:17:00,794 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-05 23:17:00,974 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-05 23:17:00,974 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-54.i
[2024-11-05 23:17:00,984 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9359eb0c7/ab1a9a238a3546c397f8a80791fb8ff3/FLAG3045d789d
[2024-11-05 23:17:01,000 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9359eb0c7/ab1a9a238a3546c397f8a80791fb8ff3
[2024-11-05 23:17:01,003 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-05 23:17:01,004 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-05 23:17:01,006 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-05 23:17:01,006 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-05 23:17:01,010 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-05 23:17:01,010 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:17:01" (1/1) ...
[2024-11-05 23:17:01,011 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@733a2b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:17:01, skipping insertion in model container
[2024-11-05 23:17:01,011 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:17:01" (1/1) ...
[2024-11-05 23:17:01,032 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-05 23:17:01,170 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_amount10_file-54.i[915,928]
[2024-11-05 23:17:01,214 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 23:17:01,239 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-05 23:17:01,256 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_amount10_file-54.i[915,928]
[2024-11-05 23:17:01,275 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 23:17:01,304 INFO  L204         MainTranslator]: Completed translation
[2024-11-05 23:17:01,305 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:17:01 WrapperNode
[2024-11-05 23:17:01,308 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-05 23:17:01,309 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-05 23:17:01,309 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-05 23:17:01,309 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-05 23:17:01,319 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:17:01" (1/1) ...
[2024-11-05 23:17:01,331 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:17:01" (1/1) ...
[2024-11-05 23:17:01,368 INFO  L138                Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 72
[2024-11-05 23:17:01,368 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-05 23:17:01,369 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-05 23:17:01,369 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-05 23:17:01,369 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-05 23:17:01,384 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:17:01" (1/1) ...
[2024-11-05 23:17:01,385 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:17:01" (1/1) ...
[2024-11-05 23:17:01,392 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:17:01" (1/1) ...
[2024-11-05 23:17:01,418 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 23:17:01,418 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:17:01" (1/1) ...
[2024-11-05 23:17:01,419 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:17:01" (1/1) ...
[2024-11-05 23:17:01,426 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:17:01" (1/1) ...
[2024-11-05 23:17:01,436 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:17:01" (1/1) ...
[2024-11-05 23:17:01,443 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:17:01" (1/1) ...
[2024-11-05 23:17:01,444 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:17:01" (1/1) ...
[2024-11-05 23:17:01,446 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-05 23:17:01,452 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-05 23:17:01,452 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-05 23:17:01,453 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-05 23:17:01,453 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:17:01" (1/1) ...
[2024-11-05 23:17:01,472 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 23:17:01,488 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-05 23:17:01,501 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 23:17:01,503 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 23:17:01,523 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-05 23:17:01,523 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-05 23:17:01,523 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-05 23:17:01,523 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-05 23:17:01,523 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-05 23:17:01,523 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-05 23:17:01,576 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-05 23:17:01,577 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-05 23:17:03,764 INFO  L?                        ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-05 23:17:03,765 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-05 23:17:03,777 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-05 23:17:03,777 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-05 23:17:03,778 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:17:03 BoogieIcfgContainer
[2024-11-05 23:17:03,778 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-05 23:17:03,780 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-05 23:17:03,780 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-05 23:17:03,782 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-05 23:17:03,783 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 11:17:01" (1/3) ...
[2024-11-05 23:17:03,783 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e244925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:17:03, skipping insertion in model container
[2024-11-05 23:17:03,784 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:17:01" (2/3) ...
[2024-11-05 23:17:03,784 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e244925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:17:03, skipping insertion in model container
[2024-11-05 23:17:03,784 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:17:03" (3/3) ...
[2024-11-05 23:17:03,813 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-54.i
[2024-11-05 23:17:03,827 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-05 23:17:03,827 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-05 23:17:03,872 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-05 23:17:03,876 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;@7f50ee7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-05 23:17:03,877 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-05 23:17:03,880 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-05 23:17:03,885 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-05 23:17:03,886 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:17:03,886 INFO  L215           NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:17:03,887 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:17:03,890 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:17:03,891 INFO  L85        PathProgramCache]: Analyzing trace with hash 696913717, now seen corresponding path program 1 times
[2024-11-05 23:17:03,900 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:17:03,901 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402468060]
[2024-11-05 23:17:03,901 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:17:03,901 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 23:17:03,902 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:17:03,908 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 23:17:03,912 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 23:17:04,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:17:04,207 INFO  L255         TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-05 23:17:04,214 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:17:04,242 INFO  L134       CoverageAnalysis]: Checked inductivity of 112 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked.
[2024-11-05 23:17:04,242 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:17:04,243 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:17:04,243 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402468060]
[2024-11-05 23:17:04,244 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [402468060] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:17:04,244 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:17:04,244 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-05 23:17:04,246 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548843224]
[2024-11-05 23:17:04,246 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:17:04,249 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-05 23:17:04,249 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:17:04,265 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-05 23:17:04,266 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 23:17:04,267 INFO  L87              Difference]: Start difference. First operand  has 34 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)
[2024-11-05 23:17:04,284 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:17:04,285 INFO  L93              Difference]: Finished difference Result 61 states and 94 transitions.
[2024-11-05 23:17:04,285 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-05 23:17:04,286 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56
[2024-11-05 23:17:04,287 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:17:04,291 INFO  L225             Difference]: With dead ends: 61
[2024-11-05 23:17:04,291 INFO  L226             Difference]: Without dead ends: 30
[2024-11-05 23:17:04,294 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 55 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 23:17:04,297 INFO  L432           NwaCegarLoop]: 39 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, 39 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 23:17:04,298 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-05 23:17:04,310 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2024-11-05 23:17:04,323 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30.
[2024-11-05 23:17:04,324 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-05 23:17:04,327 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions.
[2024-11-05 23:17:04,329 INFO  L78                 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 56
[2024-11-05 23:17:04,329 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:17:04,329 INFO  L471      AbstractCegarLoop]: Abstraction has 30 states and 39 transitions.
[2024-11-05 23:17:04,330 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)
[2024-11-05 23:17:04,330 INFO  L276                IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions.
[2024-11-05 23:17:04,332 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-05 23:17:04,332 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:17:04,332 INFO  L215           NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:17:04,342 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 23:17:04,533 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 23:17:04,534 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:17:04,535 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:17:04,535 INFO  L85        PathProgramCache]: Analyzing trace with hash -469856391, now seen corresponding path program 1 times
[2024-11-05 23:17:04,536 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:17:04,536 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270942069]
[2024-11-05 23:17:04,536 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:17:04,537 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 23:17:04,537 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:17:04,539 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 23:17:04,540 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 23:17:04,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:17:04,774 INFO  L255         TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-05 23:17:04,778 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:17:04,816 INFO  L134       CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked.
[2024-11-05 23:17:04,817 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:17:04,817 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:17:04,817 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270942069]
[2024-11-05 23:17:04,817 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [270942069] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:17:04,817 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:17:04,817 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-05 23:17:04,817 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404360086]
[2024-11-05 23:17:04,818 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:17:04,818 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-05 23:17:04,819 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:17:04,819 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-05 23:17:04,819 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-05 23:17:04,819 INFO  L87              Difference]: Start difference. First operand 30 states and 39 transitions. Second operand  has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8)
[2024-11-05 23:17:05,751 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:17:05,752 INFO  L93              Difference]: Finished difference Result 57 states and 75 transitions.
[2024-11-05 23:17:05,768 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-05 23:17:05,769 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56
[2024-11-05 23:17:05,769 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:17:05,770 INFO  L225             Difference]: With dead ends: 57
[2024-11-05 23:17:05,770 INFO  L226             Difference]: Without dead ends: 30
[2024-11-05 23:17:05,770 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 23:17:05,771 INFO  L432           NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-11-05 23:17:05,772 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-11-05 23:17:05,772 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2024-11-05 23:17:05,776 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30.
[2024-11-05 23:17:05,776 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-05 23:17:05,776 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions.
[2024-11-05 23:17:05,777 INFO  L78                 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 56
[2024-11-05 23:17:05,778 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:17:05,778 INFO  L471      AbstractCegarLoop]: Abstraction has 30 states and 38 transitions.
[2024-11-05 23:17:05,778 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8)
[2024-11-05 23:17:05,778 INFO  L276                IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions.
[2024-11-05 23:17:05,779 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-05 23:17:05,779 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:17:05,779 INFO  L215           NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:17:05,790 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
[2024-11-05 23:17:05,984 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 23:17:05,985 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:17:05,985 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:17:05,985 INFO  L85        PathProgramCache]: Analyzing trace with hash -412598089, now seen corresponding path program 1 times
[2024-11-05 23:17:05,986 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:17:05,986 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [516712068]
[2024-11-05 23:17:05,986 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:17:05,986 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 23:17:05,986 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:17:05,991 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 23:17:05,992 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 23:17:06,218 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:17:06,225 INFO  L255         TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-05 23:17:06,229 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:18:20,766 INFO  L134       CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked.
[2024-11-05 23:18:20,766 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:18:20,767 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:18:20,767 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [516712068]
[2024-11-05 23:18:20,767 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [516712068] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:18:20,767 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:18:20,767 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-05 23:18:20,767 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528299084]
[2024-11-05 23:18:20,767 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:18:20,768 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-05 23:18:20,768 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:18:20,768 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-05 23:18:20,768 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-05 23:18:20,768 INFO  L87              Difference]: Start difference. First operand 30 states and 38 transitions. Second operand  has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8)
[2024-11-05 23:18:27,795 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 23:18:29,107 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 23:18:48,192 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 23:18:48,192 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:18:48,192 INFO  L93              Difference]: Finished difference Result 38 states and 46 transitions.
[2024-11-05 23:18:48,228 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-05 23:18:48,228 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56
[2024-11-05 23:18:48,228 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:18:48,229 INFO  L225             Difference]: With dead ends: 38
[2024-11-05 23:18:48,229 INFO  L226             Difference]: Without dead ends: 36
[2024-11-05 23:18:48,229 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-05 23:18:48,230 INFO  L432           NwaCegarLoop]: 36 mSDtfsCounter, 5 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time
[2024-11-05 23:18:48,230 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 126 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 18.6s Time]
[2024-11-05 23:18:48,231 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2024-11-05 23:18:48,233 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33.
[2024-11-05 23:18:48,234 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-05 23:18:48,234 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions.
[2024-11-05 23:18:48,234 INFO  L78                 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 56
[2024-11-05 23:18:48,234 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:18:48,235 INFO  L471      AbstractCegarLoop]: Abstraction has 33 states and 41 transitions.
[2024-11-05 23:18:48,235 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8)
[2024-11-05 23:18:48,235 INFO  L276                IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions.
[2024-11-05 23:18:48,236 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-05 23:18:48,236 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:18:48,236 INFO  L215           NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:18:48,245 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
[2024-11-05 23:18:48,439 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 23:18:48,440 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:18:48,440 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:18:48,440 INFO  L85        PathProgramCache]: Analyzing trace with hash -410751047, now seen corresponding path program 1 times
[2024-11-05 23:18:48,441 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:18:48,441 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331849379]
[2024-11-05 23:18:48,441 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:18:48,441 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 23:18:48,441 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:18:48,445 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 23:18:48,446 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 23:18:48,681 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:18:48,687 INFO  L255         TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-05 23:18:48,698 INFO  L278         TraceCheckSpWp]: Computing forward predicates...