/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 FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-51.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:24:43,808 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:24:43,853 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 08:24:43,857 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:24:43,858 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:24:43,880 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:24:43,880 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:24:43,881 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:24:43,881 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:24:43,882 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:24:43,883 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:24:43,883 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:24:43,884 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:24:43,884 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:24:43,884 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:24:43,885 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:24:43,885 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:24:43,885 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:24:43,885 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:24:43,885 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:24:43,886 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:24:43,888 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:24:43,888 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:24:43,888 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:24:43,888 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:24:43,888 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:24:43,889 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:24:43,889 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:24:43,889 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:24:43,889 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:24:43,889 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:24:43,889 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:24:43,889 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:24:43,890 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:24:43,890 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:24:43,890 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:24:43,890 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:24:43,890 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:24:43,890 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:24:43,891 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:24:43,891 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:24:43,891 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:24:43,891 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:24:43,892 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:24:43,892 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:24:44,063 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:24:44,078 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:24:44,079 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:24:44,080 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:24:44,082 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:24:44,083 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-51.i
[2024-11-06 08:24:45,312 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:24:45,484 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:24:45,485 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-51.i
[2024-11-06 08:24:45,495 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d15c363bb/4815f3b08fc6404781880f40613bf029/FLAGbb57033a1
[2024-11-06 08:24:45,511 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d15c363bb/4815f3b08fc6404781880f40613bf029
[2024-11-06 08:24:45,513 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:24:45,514 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:24:45,515 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:24:45,515 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:24:45,520 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:24:45,521 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:24:45" (1/1) ...
[2024-11-06 08:24:45,522 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d06b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:24:45, skipping insertion in model container
[2024-11-06 08:24:45,522 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:24:45" (1/1) ...
[2024-11-06 08:24:45,557 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:24:45,679 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_amount250_file-51.i[916,929]
[2024-11-06 08:24:45,823 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:24:45,836 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:24:45,845 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_amount250_file-51.i[916,929]
[2024-11-06 08:24:45,890 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:24:45,906 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:24:45,906 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:24:45 WrapperNode
[2024-11-06 08:24:45,906 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:24:45,907 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:24:45,907 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:24:45,907 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:24:45,912 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:24:45" (1/1) ...
[2024-11-06 08:24:45,928 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:24:45" (1/1) ...
[2024-11-06 08:24:45,955 INFO  L138                Inliner]: procedures = 27, calls = 80, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 384
[2024-11-06 08:24:45,955 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:24:45,956 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:24:45,956 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:24:45,956 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:24:45,964 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:24:45" (1/1) ...
[2024-11-06 08:24:45,965 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:24:45" (1/1) ...
[2024-11-06 08:24:45,970 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:24:45" (1/1) ...
[2024-11-06 08:24:45,990 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 08:24:45,990 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:24:45" (1/1) ...
[2024-11-06 08:24:45,990 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:24:45" (1/1) ...
[2024-11-06 08:24:46,016 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:24:45" (1/1) ...
[2024-11-06 08:24:46,020 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:24:45" (1/1) ...
[2024-11-06 08:24:46,027 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:24:45" (1/1) ...
[2024-11-06 08:24:46,034 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:24:45" (1/1) ...
[2024-11-06 08:24:46,045 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:24:46,046 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:24:46,046 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:24:46,047 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:24:46,047 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:24:45" (1/1) ...
[2024-11-06 08:24:46,053 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:24:46,061 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:24:46,076 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 08:24:46,078 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 08:24:46,099 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:24:46,099 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:24:46,099 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:24:46,099 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:24:46,099 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:24:46,099 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:24:46,200 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:24:46,201 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:24:55,939 INFO  L?                        ?]: Removed 37 outVars from TransFormulas that were not future-live.
[2024-11-06 08:24:55,940 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:24:55,955 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:24:55,955 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:24:55,956 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:24:55 BoogieIcfgContainer
[2024-11-06 08:24:55,956 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:24:55,959 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:24:55,960 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:24:55,962 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:24:55,962 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:24:45" (1/3) ...
[2024-11-06 08:24:55,963 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4bea1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:24:55, skipping insertion in model container
[2024-11-06 08:24:55,963 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:24:45" (2/3) ...
[2024-11-06 08:24:55,963 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4bea1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:24:55, skipping insertion in model container
[2024-11-06 08:24:55,963 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:24:55" (3/3) ...
[2024-11-06 08:24:55,964 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-51.i
[2024-11-06 08:24:55,976 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:24:55,976 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:24:56,019 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:24:56,023 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;@36959ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:24:56,023 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:24:56,028 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 173 states, 103 states have (on average 1.4563106796116505) internal successors, (150), 104 states have internal predecessors, (150), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67)
[2024-11-06 08:24:56,047 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 413
[2024-11-06 08:24:56,047 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:24:56,048 INFO  L215           NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:24:56,048 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:24:56,053 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:24:56,053 INFO  L85        PathProgramCache]: Analyzing trace with hash -1686381084, now seen corresponding path program 1 times
[2024-11-06 08:24:56,065 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:24:56,066 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675300127]
[2024-11-06 08:24:56,066 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:24:56,066 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 08:24:56,067 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:24:56,070 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 08:24:56,071 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 08:24:56,745 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:24:56,775 INFO  L255         TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 08:24:56,787 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:24:56,849 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8712 trivial. 0 not checked.
[2024-11-06 08:24:56,850 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:24:56,850 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:24:56,850 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675300127]
[2024-11-06 08:24:56,851 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675300127] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:24:56,851 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:24:56,851 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 08:24:56,853 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358739282]
[2024-11-06 08:24:56,853 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:24:56,858 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 08:24:56,858 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:24:56,899 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 08:24:56,900 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:24:56,902 INFO  L87              Difference]: Start difference. First operand  has 173 states, 103 states have (on average 1.4563106796116505) internal successors, (150), 104 states have internal predecessors, (150), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Second operand  has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 2 states have call successors, (67)
[2024-11-06 08:24:56,980 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:24:56,980 INFO  L93              Difference]: Finished difference Result 338 states and 627 transitions.
[2024-11-06 08:24:56,982 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 08:24:56,983 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 2 states have call successors, (67) Word has length 412
[2024-11-06 08:24:56,984 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:24:56,992 INFO  L225             Difference]: With dead ends: 338
[2024-11-06 08:24:56,992 INFO  L226             Difference]: Without dead ends: 168
[2024-11-06 08:24:56,997 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 411 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 08:24:57,001 INFO  L432           NwaCegarLoop]: 273 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, 273 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 08:24:57,002 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 08:24:57,016 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 168 states.
[2024-11-06 08:24:57,058 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168.
[2024-11-06 08:24:57,061 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 168 states, 99 states have (on average 1.404040404040404) internal successors, (139), 99 states have internal predecessors, (139), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67)
[2024-11-06 08:24:57,062 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 273 transitions.
[2024-11-06 08:24:57,066 INFO  L78                 Accepts]: Start accepts. Automaton has 168 states and 273 transitions. Word has length 412
[2024-11-06 08:24:57,067 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:24:57,067 INFO  L471      AbstractCegarLoop]: Abstraction has 168 states and 273 transitions.
[2024-11-06 08:24:57,067 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 41.0) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 2 states have call successors, (67)
[2024-11-06 08:24:57,067 INFO  L276                IsEmpty]: Start isEmpty. Operand 168 states and 273 transitions.
[2024-11-06 08:24:57,078 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 413
[2024-11-06 08:24:57,078 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:24:57,079 INFO  L215           NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:24:57,101 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
[2024-11-06 08:24:57,279 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 08:24:57,280 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:24:57,280 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:24:57,281 INFO  L85        PathProgramCache]: Analyzing trace with hash -735543190, now seen corresponding path program 1 times
[2024-11-06 08:24:57,282 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:24:57,282 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583061900]
[2024-11-06 08:24:57,282 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:24:57,282 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 08:24:57,282 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:24:57,283 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 08:24:57,284 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 08:24:57,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:24:57,975 INFO  L255         TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-06 08:24:57,990 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:25:09,901 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 2848 proven. 159 refuted. 0 times theorem prover too weak. 5837 trivial. 0 not checked.
[2024-11-06 08:25:09,902 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:25:13,446 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:25:13,446 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583061900]
[2024-11-06 08:25:13,447 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [583061900] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:25:13,447 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274999115]
[2024-11-06 08:25:13,447 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:25:13,447 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:25:13,447 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:25:13,459 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 08:25:13,463 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-06 08:25:13,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:25:13,955 INFO  L255         TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-06 08:25:13,961 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:25:14,174 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked.
[2024-11-06 08:25:14,174 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:25:14,174 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274999115] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:25:14,175 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-06 08:25:14,175 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9
[2024-11-06 08:25:14,175 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061851196]
[2024-11-06 08:25:14,176 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:25:14,177 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-06 08:25:14,177 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:25:14,177 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-06 08:25:14,178 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2024-11-06 08:25:14,178 INFO  L87              Difference]: Start difference. First operand 168 states and 273 transitions. Second operand  has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67)
[2024-11-06 08:25:18,546 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:25:22,553 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:25:22,651 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:25:22,651 INFO  L93              Difference]: Finished difference Result 410 states and 663 transitions.
[2024-11-06 08:25:22,651 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-06 08:25:22,652 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67) Word has length 412
[2024-11-06 08:25:22,653 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:25:22,655 INFO  L225             Difference]: With dead ends: 410
[2024-11-06 08:25:22,656 INFO  L226             Difference]: Without dead ends: 245
[2024-11-06 08:25:22,657 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1152 GetRequests, 1142 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2024-11-06 08:25:22,657 INFO  L432           NwaCegarLoop]: 381 mSDtfsCounter, 116 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time
[2024-11-06 08:25:22,658 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 635 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time]
[2024-11-06 08:25:22,659 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 245 states.
[2024-11-06 08:25:22,681 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 242.
[2024-11-06 08:25:22,682 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 242 states, 147 states have (on average 1.3945578231292517) internal successors, (205), 148 states have internal predecessors, (205), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 91 states have call predecessors, (92), 92 states have call successors, (92)
[2024-11-06 08:25:22,683 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 389 transitions.
[2024-11-06 08:25:22,684 INFO  L78                 Accepts]: Start accepts. Automaton has 242 states and 389 transitions. Word has length 412
[2024-11-06 08:25:22,685 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:25:22,685 INFO  L471      AbstractCegarLoop]: Abstraction has 242 states and 389 transitions.
[2024-11-06 08:25:22,685 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67)
[2024-11-06 08:25:22,685 INFO  L276                IsEmpty]: Start isEmpty. Operand 242 states and 389 transitions.
[2024-11-06 08:25:22,693 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 414
[2024-11-06 08:25:22,693 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:25:22,693 INFO  L215           NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:25:22,723 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2024-11-06 08:25:22,943 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-06 08:25:23,094 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=3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:25:23,094 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:25:23,095 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:25:23,096 INFO  L85        PathProgramCache]: Analyzing trace with hash -1865051289, now seen corresponding path program 1 times
[2024-11-06 08:25:23,097 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:25:23,097 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418018982]
[2024-11-06 08:25:23,097 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:25:23,097 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 08:25:23,097 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:25:23,100 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 08:25:23,101 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 08:25:23,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:25:23,725 INFO  L255         TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-06 08:25:23,731 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:25:36,358 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 2848 proven. 159 refuted. 0 times theorem prover too weak. 5837 trivial. 0 not checked.
[2024-11-06 08:25:36,359 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:25:40,215 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:25:40,215 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418018982]
[2024-11-06 08:25:40,215 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [418018982] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:25:40,216 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631438151]
[2024-11-06 08:25:40,216 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:25:40,216 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:25:40,216 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:25:40,218 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 08:25:40,218 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-06 08:25:40,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:25:40,700 INFO  L255         TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-06 08:25:40,706 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:25:41,326 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked.
[2024-11-06 08:25:41,327 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:25:41,327 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [631438151] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:25:41,327 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-06 08:25:41,327 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10
[2024-11-06 08:25:41,327 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221105467]
[2024-11-06 08:25:41,327 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:25:41,328 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-06 08:25:41,328 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:25:41,329 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-06 08:25:41,329 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2024-11-06 08:25:41,329 INFO  L87              Difference]: Start difference. First operand 242 states and 389 transitions. Second operand  has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67)
[2024-11-06 08:25:46,944 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:25:50,949 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:25:54,961 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:25:58,966 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:26:02,969 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:26:06,975 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:26:10,979 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:26:12,047 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:26:12,048 INFO  L93              Difference]: Finished difference Result 900 states and 1435 transitions.
[2024-11-06 08:26:12,048 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-06 08:26:12,048 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67) Word has length 413
[2024-11-06 08:26:12,049 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:26:12,055 INFO  L225             Difference]: With dead ends: 900
[2024-11-06 08:26:12,055 INFO  L226             Difference]: Without dead ends: 661
[2024-11-06 08:26:12,056 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1157 GetRequests, 1145 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182
[2024-11-06 08:26:12,057 INFO  L432           NwaCegarLoop]: 265 mSDtfsCounter, 464 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 104 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time
[2024-11-06 08:26:12,057 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 790 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 217 Invalid, 7 Unknown, 0 Unchecked, 30.5s Time]
[2024-11-06 08:26:12,058 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 661 states.
[2024-11-06 08:26:12,098 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 268.
[2024-11-06 08:26:12,098 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 268 states, 173 states have (on average 1.439306358381503) internal successors, (249), 174 states have internal predecessors, (249), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 91 states have call predecessors, (92), 92 states have call successors, (92)
[2024-11-06 08:26:12,100 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 433 transitions.
[2024-11-06 08:26:12,101 INFO  L78                 Accepts]: Start accepts. Automaton has 268 states and 433 transitions. Word has length 413
[2024-11-06 08:26:12,101 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:26:12,101 INFO  L471      AbstractCegarLoop]: Abstraction has 268 states and 433 transitions.
[2024-11-06 08:26:12,102 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67)
[2024-11-06 08:26:12,102 INFO  L276                IsEmpty]: Start isEmpty. Operand 268 states and 433 transitions.
[2024-11-06 08:26:12,103 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 414
[2024-11-06 08:26:12,103 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:26:12,104 INFO  L215           NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:26:12,128 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 (5)] Ended with exit code 0
[2024-11-06 08:26:12,350 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-06 08:26:12,504 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:26:12,505 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:26:12,505 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:26:12,506 INFO  L85        PathProgramCache]: Analyzing trace with hash -1163986711, now seen corresponding path program 1 times
[2024-11-06 08:26:12,506 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:26:12,506 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167455712]
[2024-11-06 08:26:12,507 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:26:12,507 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 08:26:12,507 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:26:12,509 INFO  L229       MonitoredProcess]: Starting monitored process 7 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 08:26:12,510 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 (7)] Waiting until timeout for monitored process
[2024-11-06 08:26:13,127 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:26:13,159 INFO  L255         TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-06 08:26:13,165 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:26:26,241 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 2848 proven. 159 refuted. 0 times theorem prover too weak. 5837 trivial. 0 not checked.
[2024-11-06 08:26:26,241 INFO  L311         TraceCheckSpWp]: Computing backward predicates...