/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-32.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-05 23:59:53,842 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-05 23:59:53,892 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 23:59:53,897 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-05 23:59:53,897 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-05 23:59:53,919 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-05 23:59:53,919 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-05 23:59:53,919 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-05 23:59:53,920 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-05 23:59:53,921 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-05 23:59:53,921 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-05 23:59:53,921 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-05 23:59:53,922 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-05 23:59:53,922 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-05 23:59:53,922 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-05 23:59:53,922 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-05 23:59:53,922 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-05 23:59:53,922 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-05 23:59:53,923 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-05 23:59:53,923 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-05 23:59:53,923 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-05 23:59:53,926 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-05 23:59:53,926 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-05 23:59:53,926 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-05 23:59:53,926 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-05 23:59:53,926 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-05 23:59:53,927 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-05 23:59:53,927 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-05 23:59:53,927 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-05 23:59:53,927 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-05 23:59:53,927 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-05 23:59:53,927 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-05 23:59:53,927 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-05 23:59:53,928 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-05 23:59:53,928 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 23:59:53,928 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-05 23:59:53,928 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-05 23:59:53,928 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-05 23:59:53,928 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-05 23:59:53,928 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-05 23:59:53,929 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-05 23:59:53,929 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-05 23:59:53,929 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-05 23:59:53,929 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-05 23:59:53,930 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF
[2024-11-05 23:59:54,102 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-05 23:59:54,117 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-05 23:59:54,119 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-05 23:59:54,121 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-05 23:59:54,125 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-05 23:59:54,126 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-32.i
[2024-11-05 23:59:55,355 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-05 23:59:55,486 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-05 23:59:55,488 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-32.i
[2024-11-05 23:59:55,494 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b6624380/23cb9fd9d6894dcc9d436994458bd8b1/FLAG63b485709
[2024-11-05 23:59:55,903 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b6624380/23cb9fd9d6894dcc9d436994458bd8b1
[2024-11-05 23:59:55,904 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-05 23:59:55,905 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-05 23:59:55,906 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-05 23:59:55,906 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-05 23:59:55,911 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-05 23:59:55,911 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:59:55" (1/1) ...
[2024-11-05 23:59:55,912 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d815c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:59:55, skipping insertion in model container
[2024-11-05 23:59:55,912 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:59:55" (1/1) ...
[2024-11-05 23:59:55,931 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-05 23:59:56,059 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-32.i[915,928]
[2024-11-05 23:59:56,097 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 23:59:56,115 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-05 23:59:56,126 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-32.i[915,928]
[2024-11-05 23:59:56,147 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 23:59:56,160 INFO  L204         MainTranslator]: Completed translation
[2024-11-05 23:59:56,160 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:59:56 WrapperNode
[2024-11-05 23:59:56,160 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-05 23:59:56,161 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-05 23:59:56,161 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-05 23:59:56,161 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-05 23:59:56,166 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:59:56" (1/1) ...
[2024-11-05 23:59:56,176 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:59:56" (1/1) ...
[2024-11-05 23:59:56,198 INFO  L138                Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 139
[2024-11-05 23:59:56,198 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-05 23:59:56,199 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-05 23:59:56,199 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-05 23:59:56,199 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-05 23:59:56,207 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:59:56" (1/1) ...
[2024-11-05 23:59:56,207 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:59:56" (1/1) ...
[2024-11-05 23:59:56,215 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:59:56" (1/1) ...
[2024-11-05 23:59:56,231 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 23:59:56,232 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:59:56" (1/1) ...
[2024-11-05 23:59:56,232 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:59:56" (1/1) ...
[2024-11-05 23:59:56,240 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:59:56" (1/1) ...
[2024-11-05 23:59:56,242 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:59:56" (1/1) ...
[2024-11-05 23:59:56,244 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:59:56" (1/1) ...
[2024-11-05 23:59:56,245 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:59:56" (1/1) ...
[2024-11-05 23:59:56,247 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-05 23:59:56,248 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-05 23:59:56,248 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-05 23:59:56,248 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-05 23:59:56,249 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:59:56" (1/1) ...
[2024-11-05 23:59:56,254 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 23:59:56,265 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-05 23:59:56,279 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 23:59:56,282 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 23:59:56,301 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-05 23:59:56,301 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-05 23:59:56,301 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-05 23:59:56,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-05 23:59:56,302 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-05 23:59:56,302 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-05 23:59:56,363 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-05 23:59:56,365 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-05 23:59:58,679 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-05 23:59:58,679 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-05 23:59:58,687 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-05 23:59:58,688 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-05 23:59:58,688 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:59:58 BoogieIcfgContainer
[2024-11-05 23:59:58,688 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-05 23:59:58,690 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-05 23:59:58,690 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-05 23:59:58,692 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-05 23:59:58,692 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 11:59:55" (1/3) ...
[2024-11-05 23:59:58,693 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c04a9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:59:58, skipping insertion in model container
[2024-11-05 23:59:58,693 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:59:56" (2/3) ...
[2024-11-05 23:59:58,693 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c04a9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:59:58, skipping insertion in model container
[2024-11-05 23:59:58,693 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:59:58" (3/3) ...
[2024-11-05 23:59:58,694 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-32.i
[2024-11-05 23:59:58,706 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-05 23:59:58,706 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-05 23:59:58,751 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-05 23:59:58,755 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;@79df96ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-05 23:59:58,756 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-05 23:59:58,758 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 62 states, 40 states have (on average 1.4) internal successors, (56), 41 states have internal predecessors, (56), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-05 23:59:58,767 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2024-11-05 23:59:58,767 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:59:58,768 INFO  L215           NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:58,768 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:59:58,771 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:59:58,772 INFO  L85        PathProgramCache]: Analyzing trace with hash -353626371, now seen corresponding path program 1 times
[2024-11-05 23:59:58,781 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:59:58,781 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661999834]
[2024-11-05 23:59:58,782 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:59:58,784 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 23:59:58,785 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:59:58,788 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 23:59:58,789 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 23:59:58,992 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:59:58,999 INFO  L255         TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-05 23:59:59,005 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:59:59,041 INFO  L134       CoverageAnalysis]: Checked inductivity of 684 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked.
[2024-11-05 23:59:59,042 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:59:59,042 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:59:59,042 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661999834]
[2024-11-05 23:59:59,043 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661999834] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:59:59,043 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:59:59,043 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-05 23:59:59,044 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209500352]
[2024-11-05 23:59:59,045 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:59:59,049 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-05 23:59:59,049 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:59:59,069 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-05 23:59:59,069 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 23:59:59,071 INFO  L87              Difference]: Start difference. First operand  has 62 states, 40 states have (on average 1.4) internal successors, (56), 41 states have internal predecessors, (56), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand  has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)
[2024-11-05 23:59:59,097 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:59:59,098 INFO  L93              Difference]: Finished difference Result 117 states and 201 transitions.
[2024-11-05 23:59:59,099 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-05 23:59:59,100 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 123
[2024-11-05 23:59:59,101 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:59:59,107 INFO  L225             Difference]: With dead ends: 117
[2024-11-05 23:59:59,107 INFO  L226             Difference]: Without dead ends: 58
[2024-11-05 23:59:59,111 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 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 23:59:59,114 INFO  L432           NwaCegarLoop]: 87 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, 87 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 23:59:59,115 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-05 23:59:59,128 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2024-11-05 23:59:59,150 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58.
[2024-11-05 23:59:59,151 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 58 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 37 states have internal predecessors, (49), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-05 23:59:59,153 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 87 transitions.
[2024-11-05 23:59:59,155 INFO  L78                 Accepts]: Start accepts. Automaton has 58 states and 87 transitions. Word has length 123
[2024-11-05 23:59:59,156 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:59:59,156 INFO  L471      AbstractCegarLoop]: Abstraction has 58 states and 87 transitions.
[2024-11-05 23:59:59,156 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)
[2024-11-05 23:59:59,156 INFO  L276                IsEmpty]: Start isEmpty. Operand 58 states and 87 transitions.
[2024-11-05 23:59:59,158 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2024-11-05 23:59:59,158 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:59:59,158 INFO  L215           NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:59:59,165 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 23:59:59,359 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 23:59:59,360 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:59:59,360 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:59:59,360 INFO  L85        PathProgramCache]: Analyzing trace with hash -176196605, now seen corresponding path program 1 times
[2024-11-05 23:59:59,361 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:59:59,361 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646275258]
[2024-11-05 23:59:59,362 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:59:59,362 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 23:59:59,362 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:59:59,364 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 23:59:59,365 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 23:59:59,568 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:59:59,575 INFO  L255         TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-05 23:59:59,584 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:59:59,949 INFO  L134       CoverageAnalysis]: Checked inductivity of 684 backedges. 276 proven. 18 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked.
[2024-11-05 23:59:59,949 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 00:00:00,280 INFO  L134       CoverageAnalysis]: Checked inductivity of 684 backedges. 42 proven. 12 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked.
[2024-11-06 00:00:00,280 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-06 00:00:00,280 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646275258]
[2024-11-06 00:00:00,280 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [646275258] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 00:00:00,280 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 00:00:00,281 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 14
[2024-11-06 00:00:00,281 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840053044]
[2024-11-06 00:00:00,281 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 00:00:00,282 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-06 00:00:00,282 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-06 00:00:00,283 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-06 00:00:00,283 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182
[2024-11-06 00:00:00,283 INFO  L87              Difference]: Start difference. First operand 58 states and 87 transitions. Second operand  has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24)
[2024-11-06 00:00:02,525 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 00:00:04,271 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 00:00:04,271 INFO  L93              Difference]: Finished difference Result 279 states and 403 transitions.
[2024-11-06 00:00:04,272 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2024-11-06 00:00:04,272 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 123
[2024-11-06 00:00:04,273 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 00:00:04,277 INFO  L225             Difference]: With dead ends: 279
[2024-11-06 00:00:04,277 INFO  L226             Difference]: Without dead ends: 224
[2024-11-06 00:00:04,279 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406
[2024-11-06 00:00:04,279 INFO  L432           NwaCegarLoop]: 105 mSDtfsCounter, 322 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2024-11-06 00:00:04,280 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 630 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2024-11-06 00:00:04,282 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 224 states.
[2024-11-06 00:00:04,329 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 211.
[2024-11-06 00:00:04,330 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 211 states, 130 states have (on average 1.2384615384615385) internal successors, (161), 131 states have internal predecessors, (161), 71 states have call successors, (71), 9 states have call predecessors, (71), 9 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71)
[2024-11-06 00:00:04,332 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 303 transitions.
[2024-11-06 00:00:04,333 INFO  L78                 Accepts]: Start accepts. Automaton has 211 states and 303 transitions. Word has length 123
[2024-11-06 00:00:04,333 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 00:00:04,333 INFO  L471      AbstractCegarLoop]: Abstraction has 211 states and 303 transitions.
[2024-11-06 00:00:04,333 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 3 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24)
[2024-11-06 00:00:04,333 INFO  L276                IsEmpty]: Start isEmpty. Operand 211 states and 303 transitions.
[2024-11-06 00:00:04,335 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-06 00:00:04,335 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 00:00:04,335 INFO  L215           NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:00:04,347 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 00:00:04,535 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 00:00:04,536 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 00:00:04,537 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 00:00:04,537 INFO  L85        PathProgramCache]: Analyzing trace with hash -2078721945, now seen corresponding path program 1 times
[2024-11-06 00:00:04,537 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 00:00:04,538 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441811607]
[2024-11-06 00:00:04,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 00:00:04,539 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 00:00:04,539 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 00:00:04,541 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 00:00:04,543 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 00:00:04,745 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 00:00:04,754 INFO  L255         TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-06 00:00:04,759 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 00:00:23,762 WARN  L286               SmtUtils]: Spent 7.16s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-06 00:00:24,503 INFO  L134       CoverageAnalysis]: Checked inductivity of 684 backedges. 368 proven. 42 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked.
[2024-11-06 00:00:24,504 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 00:00:50,538 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-06 00:00:50,545 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441811607]
[2024-11-06 00:00:50,545 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1441811607] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 00:00:50,545 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1585490872]
[2024-11-06 00:00:50,545 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 00:00:50,546 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-06 00:00:50,546 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-06 00:00:50,572 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-06 00:00:50,574 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-06 00:00:51,261 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 00:00:51,283 INFO  L255         TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 27 conjuncts are in the unsatisfiable core
[2024-11-06 00:00:51,291 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 00:01:39,982 WARN  L286               SmtUtils]: Spent 12.46s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-06 00:01:40,567 INFO  L134       CoverageAnalysis]: Checked inductivity of 684 backedges. 368 proven. 42 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked.
[2024-11-06 00:01:40,568 INFO  L311         TraceCheckSpWp]: Computing backward predicates...