/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_amount50_file-85.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 00:06:34,727 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 00:06:34,814 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-06 00:06:34,821 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 00:06:34,822 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 00:06:34,856 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 00:06:34,857 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 00:06:34,857 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 00:06:34,858 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 00:06:34,858 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 00:06:34,860 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 00:06:34,861 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 00:06:34,862 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 00:06:34,863 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 00:06:34,864 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 00:06:34,864 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 00:06:34,864 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 00:06:34,864 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 00:06:34,865 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 00:06:34,865 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 00:06:34,865 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 00:06:34,866 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 00:06:34,866 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 00:06:34,867 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 00:06:34,867 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 00:06:34,867 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 00:06:34,867 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 00:06:34,868 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 00:06:34,868 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 00:06:34,868 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 00:06:34,869 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 00:06:34,869 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 00:06:34,869 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 00:06:34,869 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 00:06:34,870 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 00:06:34,870 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 00:06:34,870 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 00:06:34,871 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 00:06:34,871 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 00:06:34,871 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 00:06:34,871 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 00:06:34,872 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 00:06:34,872 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 00:06:34,872 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 00:06:34,872 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF
[2024-11-06 00:06:35,125 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 00:06:35,154 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 00:06:35,159 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 00:06:35,161 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 00:06:35,162 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 00:06:35,164 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-85.i
[2024-11-06 00:06:36,705 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 00:06:36,920 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 00:06:36,921 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-85.i
[2024-11-06 00:06:36,933 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4121be8ad/e52a77cae1474681b7c031fd9422d2fd/FLAG68aeac9d5
[2024-11-06 00:06:36,950 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4121be8ad/e52a77cae1474681b7c031fd9422d2fd
[2024-11-06 00:06:36,953 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 00:06:36,954 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 00:06:36,955 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 00:06:36,955 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 00:06:36,960 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 00:06:36,961 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 12:06:36" (1/1) ...
[2024-11-06 00:06:36,962 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2909d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:06:36, skipping insertion in model container
[2024-11-06 00:06:36,962 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 12:06:36" (1/1) ...
[2024-11-06 00:06:36,994 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 00:06:37,154 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_amount50_file-85.i[915,928]
[2024-11-06 00:06:37,214 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 00:06:37,231 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 00:06:37,242 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_amount50_file-85.i[915,928]
[2024-11-06 00:06:37,266 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 00:06:37,289 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 00:06:37,289 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:06:37 WrapperNode
[2024-11-06 00:06:37,290 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 00:06:37,291 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 00:06:37,291 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 00:06:37,291 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 00:06:37,298 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:06:37" (1/1) ...
[2024-11-06 00:06:37,311 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:06:37" (1/1) ...
[2024-11-06 00:06:37,339 INFO  L138                Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 124
[2024-11-06 00:06:37,339 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 00:06:37,341 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 00:06:37,341 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 00:06:37,342 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 00:06:37,353 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:06:37" (1/1) ...
[2024-11-06 00:06:37,353 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:06:37" (1/1) ...
[2024-11-06 00:06:37,357 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:06:37" (1/1) ...
[2024-11-06 00:06:37,371 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 00:06:37,372 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:06:37" (1/1) ...
[2024-11-06 00:06:37,372 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:06:37" (1/1) ...
[2024-11-06 00:06:37,383 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:06:37" (1/1) ...
[2024-11-06 00:06:37,391 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:06:37" (1/1) ...
[2024-11-06 00:06:37,398 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:06:37" (1/1) ...
[2024-11-06 00:06:37,400 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:06:37" (1/1) ...
[2024-11-06 00:06:37,403 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 00:06:37,404 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 00:06:37,404 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 00:06:37,405 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 00:06:37,405 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:06:37" (1/1) ...
[2024-11-06 00:06:37,412 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 00:06:37,427 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 00:06:37,441 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 00:06:37,444 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 00:06:37,467 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 00:06:37,467 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 00:06:37,467 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 00:06:37,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 00:06:37,468 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 00:06:37,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 00:06:37,545 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 00:06:37,547 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 00:06:41,502 INFO  L?                        ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-11-06 00:06:41,502 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 00:06:41,522 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 00:06:41,523 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 00:06:41,525 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 12:06:41 BoogieIcfgContainer
[2024-11-06 00:06:41,525 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 00:06:41,530 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 00:06:41,530 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 00:06:41,534 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 00:06:41,534 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 12:06:36" (1/3) ...
[2024-11-06 00:06:41,535 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1051c179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 12:06:41, skipping insertion in model container
[2024-11-06 00:06:41,535 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:06:37" (2/3) ...
[2024-11-06 00:06:41,536 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1051c179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 12:06:41, skipping insertion in model container
[2024-11-06 00:06:41,536 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 12:06:41" (3/3) ...
[2024-11-06 00:06:41,537 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-85.i
[2024-11-06 00:06:41,552 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 00:06:41,553 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 00:06:41,615 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 00:06:41,622 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;@a89a5cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 00:06:41,622 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 00:06:41,628 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 54 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-06 00:06:41,641 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2024-11-06 00:06:41,641 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 00:06:41,642 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 00:06:41,643 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 00:06:41,649 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 00:06:41,649 INFO  L85        PathProgramCache]: Analyzing trace with hash -1458547587, now seen corresponding path program 1 times
[2024-11-06 00:06:41,670 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 00:06:41,670 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859249767]
[2024-11-06 00:06:41,671 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 00:06:41,671 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 00:06:41,671 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 00:06:41,675 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 00:06:41,677 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 00:06:42,168 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 00:06:42,200 INFO  L255         TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 00:06:42,210 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 00:06:42,258 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked.
[2024-11-06 00:06:42,259 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 00:06:42,260 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-06 00:06:42,260 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859249767]
[2024-11-06 00:06:42,261 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859249767] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 00:06:42,261 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 00:06:42,262 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 00:06:42,264 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174467431]
[2024-11-06 00:06:42,265 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 00:06:42,270 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 00:06:42,270 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-06 00:06:42,294 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 00:06:42,294 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 00:06:42,297 INFO  L87              Difference]: Start difference. First operand  has 54 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand  has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)
[2024-11-06 00:06:42,330 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 00:06:42,330 INFO  L93              Difference]: Finished difference Result 101 states and 169 transitions.
[2024-11-06 00:06:42,332 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 00:06:42,334 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 101
[2024-11-06 00:06:42,335 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 00:06:42,341 INFO  L225             Difference]: With dead ends: 101
[2024-11-06 00:06:42,342 INFO  L226             Difference]: Without dead ends: 50
[2024-11-06 00:06:42,345 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 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 00:06:42,352 INFO  L432           NwaCegarLoop]: 73 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, 73 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 00:06:42,353 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 00:06:42,370 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2024-11-06 00:06:42,391 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2024-11-06 00:06:42,393 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 50 states, 33 states have (on average 1.303030303030303) internal successors, (43), 33 states have internal predecessors, (43), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-06 00:06:42,394 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 73 transitions.
[2024-11-06 00:06:42,397 INFO  L78                 Accepts]: Start accepts. Automaton has 50 states and 73 transitions. Word has length 101
[2024-11-06 00:06:42,397 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 00:06:42,398 INFO  L471      AbstractCegarLoop]: Abstraction has 50 states and 73 transitions.
[2024-11-06 00:06:42,398 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)
[2024-11-06 00:06:42,398 INFO  L276                IsEmpty]: Start isEmpty. Operand 50 states and 73 transitions.
[2024-11-06 00:06:42,402 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2024-11-06 00:06:42,402 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 00:06:42,402 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 00:06:42,422 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 00:06:42,606 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 00:06:42,607 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 00:06:42,608 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 00:06:42,608 INFO  L85        PathProgramCache]: Analyzing trace with hash -1039911609, now seen corresponding path program 1 times
[2024-11-06 00:06:42,609 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 00:06:42,609 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113668713]
[2024-11-06 00:06:42,609 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 00:06:42,610 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 00:06:42,613 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 00:06:42,618 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 00:06:42,621 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 00:06:43,065 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 00:06:43,086 INFO  L255         TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 00:06:43,095 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 00:06:44,267 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2024-11-06 00:06:44,267 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 00:06:44,268 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-06 00:06:44,268 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113668713]
[2024-11-06 00:06:44,268 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113668713] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 00:06:44,269 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 00:06:44,269 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-06 00:06:44,269 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944500753]
[2024-11-06 00:06:44,269 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 00:06:44,271 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-06 00:06:44,272 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-06 00:06:44,272 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-06 00:06:44,273 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-06 00:06:44,273 INFO  L87              Difference]: Start difference. First operand 50 states and 73 transitions. Second operand  has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-06 00:06:46,699 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 00:06:46,902 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 00:06:46,903 INFO  L93              Difference]: Finished difference Result 97 states and 143 transitions.
[2024-11-06 00:06:46,929 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-06 00:06:46,929 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 101
[2024-11-06 00:06:46,930 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 00:06:46,931 INFO  L225             Difference]: With dead ends: 97
[2024-11-06 00:06:46,931 INFO  L226             Difference]: Without dead ends: 50
[2024-11-06 00:06:46,932 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-06 00:06:46,933 INFO  L432           NwaCegarLoop]: 66 mSDtfsCounter, 66 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2024-11-06 00:06:46,934 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 100 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2024-11-06 00:06:46,935 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2024-11-06 00:06:46,943 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2024-11-06 00:06:46,944 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 50 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-06 00:06:46,945 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 72 transitions.
[2024-11-06 00:06:46,945 INFO  L78                 Accepts]: Start accepts. Automaton has 50 states and 72 transitions. Word has length 101
[2024-11-06 00:06:46,947 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 00:06:46,947 INFO  L471      AbstractCegarLoop]: Abstraction has 50 states and 72 transitions.
[2024-11-06 00:06:46,947 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-06 00:06:46,947 INFO  L276                IsEmpty]: Start isEmpty. Operand 50 states and 72 transitions.
[2024-11-06 00:06:46,949 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-06 00:06:46,949 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 00:06:46,949 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 00:06:46,970 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 00:06:47,153 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 00:06:47,154 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 00:06:47,155 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 00:06:47,155 INFO  L85        PathProgramCache]: Analyzing trace with hash 473802101, now seen corresponding path program 1 times
[2024-11-06 00:06:47,155 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 00:06:47,156 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763143523]
[2024-11-06 00:06:47,156 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 00:06:47,156 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 00:06:47,156 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 00:06:47,158 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 00:06:47,160 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 00:06:47,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 00:06:47,508 INFO  L255         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-06 00:06:47,517 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 00:06:50,204 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 134 proven. 6 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked.
[2024-11-06 00:06:50,205 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 00:06:51,670 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked.
[2024-11-06 00:06:51,671 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-06 00:06:51,671 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763143523]
[2024-11-06 00:06:51,671 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763143523] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 00:06:51,672 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 00:06:51,672 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14
[2024-11-06 00:06:51,672 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475206522]
[2024-11-06 00:06:51,672 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 00:06:51,673 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-06 00:06:51,673 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-06 00:06:51,674 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-06 00:06:51,674 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182
[2024-11-06 00:06:51,675 INFO  L87              Difference]: Start difference. First operand 50 states and 72 transitions. Second operand  has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30)
[2024-11-06 00:06:56,239 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 00:06:59,701 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 00:06:59,983 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 00:06:59,984 INFO  L93              Difference]: Finished difference Result 207 states and 298 transitions.
[2024-11-06 00:06:59,984 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2024-11-06 00:06:59,985 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 102
[2024-11-06 00:06:59,986 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 00:06:59,988 INFO  L225             Difference]: With dead ends: 207
[2024-11-06 00:06:59,988 INFO  L226             Difference]: Without dead ends: 160
[2024-11-06 00:06:59,991 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600
[2024-11-06 00:06:59,992 INFO  L432           NwaCegarLoop]: 75 mSDtfsCounter, 362 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time
[2024-11-06 00:06:59,993 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 401 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time]
[2024-11-06 00:06:59,994 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 160 states.
[2024-11-06 00:07:00,037 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 124.
[2024-11-06 00:07:00,038 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 124 states, 78 states have (on average 1.2307692307692308) internal successors, (96), 79 states have internal predecessors, (96), 41 states have call successors, (41), 4 states have call predecessors, (41), 4 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41)
[2024-11-06 00:07:00,040 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 178 transitions.
[2024-11-06 00:07:00,041 INFO  L78                 Accepts]: Start accepts. Automaton has 124 states and 178 transitions. Word has length 102
[2024-11-06 00:07:00,041 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 00:07:00,041 INFO  L471      AbstractCegarLoop]: Abstraction has 124 states and 178 transitions.
[2024-11-06 00:07:00,042 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30)
[2024-11-06 00:07:00,042 INFO  L276                IsEmpty]: Start isEmpty. Operand 124 states and 178 transitions.
[2024-11-06 00:07:00,043 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-06 00:07:00,044 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 00:07:00,044 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 00:07:00,064 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 00:07:00,244 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 00:07:00,245 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 00:07:00,246 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 00:07:00,246 INFO  L85        PathProgramCache]: Analyzing trace with hash -1366099463, now seen corresponding path program 1 times
[2024-11-06 00:07:00,246 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 00:07:00,247 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938042358]
[2024-11-06 00:07:00,247 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 00:07:00,247 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 00:07:00,247 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 00:07:00,248 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 00:07:00,251 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2024-11-06 00:07:00,564 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 00:07:00,585 INFO  L255         TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 27 conjuncts are in the unsatisfiable core
[2024-11-06 00:07:00,592 INFO  L278         TraceCheckSpWp]: Computing forward predicates...