/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-91.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 08:30:20,211 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 08:30:20,269 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 08:30:20,273 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 08:30:20,274 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 08:30:20,291 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 08:30:20,292 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 08:30:20,292 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 08:30:20,293 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 08:30:20,293 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 08:30:20,293 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 08:30:20,293 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 08:30:20,294 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 08:30:20,294 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 08:30:20,294 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 08:30:20,295 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 08:30:20,295 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 08:30:20,295 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 08:30:20,295 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 08:30:20,295 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 08:30:20,296 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 08:30:20,298 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 08:30:20,298 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 08:30:20,298 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 08:30:20,299 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 08:30:20,299 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 08:30:20,299 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 08:30:20,299 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 08:30:20,299 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 08:30:20,299 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 08:30:20,300 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 08:30:20,300 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 08:30:20,300 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 08:30:20,300 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 08:30:20,300 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:30:20,301 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 08:30:20,301 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 08:30:20,301 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 08:30:20,303 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 08:30:20,304 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 08:30:20,304 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 08:30:20,305 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 08:30:20,305 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 08:30:20,305 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 08:30:20,305 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 08:30:20,473 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 08:30:20,490 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 08:30:20,492 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 08:30:20,494 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 08:30:20,494 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 08:30:20,495 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-91.i
[2024-11-06 08:30:21,672 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 08:30:21,876 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 08:30:21,877 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-91.i
[2024-11-06 08:30:21,886 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a20458014/dac4bf98ea5d453384ac6ed26947d2d8/FLAGfeeb5102a
[2024-11-06 08:30:21,896 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a20458014/dac4bf98ea5d453384ac6ed26947d2d8
[2024-11-06 08:30:21,898 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 08:30:21,899 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 08:30:21,901 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 08:30:21,901 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 08:30:21,904 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 08:30:21,905 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:30:21" (1/1) ...
[2024-11-06 08:30:21,905 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff2f8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:21, skipping insertion in model container
[2024-11-06 08:30:21,906 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:30:21" (1/1) ...
[2024-11-06 08:30:21,945 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 08:30:22,065 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-91.i[916,929]
[2024-11-06 08:30:22,204 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:30:22,218 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 08:30:22,227 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-91.i[916,929]
[2024-11-06 08:30:22,280 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 08:30:22,298 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 08:30:22,299 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:22 WrapperNode
[2024-11-06 08:30:22,299 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 08:30:22,300 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 08:30:22,300 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 08:30:22,300 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 08:30:22,304 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:22" (1/1) ...
[2024-11-06 08:30:22,322 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:22" (1/1) ...
[2024-11-06 08:30:22,350 INFO  L138                Inliner]: procedures = 27, calls = 70, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 374
[2024-11-06 08:30:22,351 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 08:30:22,351 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 08:30:22,351 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 08:30:22,351 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 08:30:22,359 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:22" (1/1) ...
[2024-11-06 08:30:22,359 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:22" (1/1) ...
[2024-11-06 08:30:22,364 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:22" (1/1) ...
[2024-11-06 08:30:22,388 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 08:30:22,389 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:22" (1/1) ...
[2024-11-06 08:30:22,389 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:22" (1/1) ...
[2024-11-06 08:30:22,413 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:22" (1/1) ...
[2024-11-06 08:30:22,420 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:22" (1/1) ...
[2024-11-06 08:30:22,424 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:22" (1/1) ...
[2024-11-06 08:30:22,426 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:22" (1/1) ...
[2024-11-06 08:30:22,431 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 08:30:22,431 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 08:30:22,431 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 08:30:22,431 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 08:30:22,432 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:22" (1/1) ...
[2024-11-06 08:30:22,436 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 08:30:22,451 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:30:22,464 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 08:30:22,466 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 08:30:22,489 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 08:30:22,489 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 08:30:22,489 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 08:30:22,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 08:30:22,489 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 08:30:22,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 08:30:22,572 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 08:30:22,574 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 08:30:39,724 INFO  L?                        ?]: Removed 40 outVars from TransFormulas that were not future-live.
[2024-11-06 08:30:39,725 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 08:30:39,739 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 08:30:39,739 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 08:30:39,739 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:30:39 BoogieIcfgContainer
[2024-11-06 08:30:39,740 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 08:30:39,743 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 08:30:39,743 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 08:30:39,745 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 08:30:39,745 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:30:21" (1/3) ...
[2024-11-06 08:30:39,746 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6582607b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:30:39, skipping insertion in model container
[2024-11-06 08:30:39,746 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:30:22" (2/3) ...
[2024-11-06 08:30:39,746 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6582607b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:30:39, skipping insertion in model container
[2024-11-06 08:30:39,746 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:30:39" (3/3) ...
[2024-11-06 08:30:39,747 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-91.i
[2024-11-06 08:30:39,759 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 08:30:39,759 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 08:30:39,814 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 08:30:39,837 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;@28a73fee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 08:30:39,837 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 08:30:39,841 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 161 states, 101 states have (on average 1.4554455445544554) internal successors, (147), 102 states have internal predecessors, (147), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57)
[2024-11-06 08:30:39,866 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 361
[2024-11-06 08:30:39,867 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:30:39,868 INFO  L215           NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:39,868 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:30:39,872 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:30:39,873 INFO  L85        PathProgramCache]: Analyzing trace with hash 1839131634, now seen corresponding path program 1 times
[2024-11-06 08:30:39,885 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:30:39,885 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104534493]
[2024-11-06 08:30:39,885 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:30:39,886 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 08:30:39,886 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:30:39,891 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 08:30:39,892 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 08:30:40,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:30:41,039 INFO  L255         TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 08:30:41,055 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:30:41,130 INFO  L134       CoverageAnalysis]: Checked inductivity of 6384 backedges. 544 proven. 0 refuted. 0 times theorem prover too weak. 5840 trivial. 0 not checked.
[2024-11-06 08:30:41,130 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:30:41,131 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:30:41,131 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104534493]
[2024-11-06 08:30:41,131 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [104534493] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:30:41,131 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:30:41,131 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 08:30:41,133 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074616405]
[2024-11-06 08:30:41,134 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:30:41,138 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 08:30:41,138 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:30:41,152 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 08:30:41,153 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 08:30:41,155 INFO  L87              Difference]: Start difference. First operand  has 161 states, 101 states have (on average 1.4554455445544554) internal successors, (147), 102 states have internal predecessors, (147), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) 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, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57)
[2024-11-06 08:30:41,192 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:30:41,192 INFO  L93              Difference]: Finished difference Result 314 states and 571 transitions.
[2024-11-06 08:30:41,193 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 08:30:41,194 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, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 360
[2024-11-06 08:30:41,194 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:30:41,201 INFO  L225             Difference]: With dead ends: 314
[2024-11-06 08:30:41,201 INFO  L226             Difference]: Without dead ends: 156
[2024-11-06 08:30:41,206 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 359 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 08:30:41,209 INFO  L432           NwaCegarLoop]: 251 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, 251 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 08:30:41,209 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 08:30:41,225 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 156 states.
[2024-11-06 08:30:41,254 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156.
[2024-11-06 08:30:41,255 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 156 states, 97 states have (on average 1.4123711340206186) internal successors, (137), 97 states have internal predecessors, (137), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57)
[2024-11-06 08:30:41,257 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 251 transitions.
[2024-11-06 08:30:41,259 INFO  L78                 Accepts]: Start accepts. Automaton has 156 states and 251 transitions. Word has length 360
[2024-11-06 08:30:41,259 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:30:41,259 INFO  L471      AbstractCegarLoop]: Abstraction has 156 states and 251 transitions.
[2024-11-06 08:30:41,260 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, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57)
[2024-11-06 08:30:41,260 INFO  L276                IsEmpty]: Start isEmpty. Operand 156 states and 251 transitions.
[2024-11-06 08:30:41,264 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 361
[2024-11-06 08:30:41,264 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:30:41,264 INFO  L215           NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:41,305 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2024-11-06 08:30:41,465 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 08:30:41,465 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:30:41,466 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:30:41,466 INFO  L85        PathProgramCache]: Analyzing trace with hash -2073681316, now seen corresponding path program 1 times
[2024-11-06 08:30:41,467 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:30:41,467 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514192125]
[2024-11-06 08:30:41,467 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:30:41,467 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 08:30:41,468 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:30:41,469 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 08:30:41,470 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 08:30:42,467 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:30:42,525 INFO  L255         TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-06 08:30:42,537 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:30:43,071 INFO  L134       CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked.
[2024-11-06 08:30:43,072 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:30:43,072 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:30:43,072 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514192125]
[2024-11-06 08:30:43,072 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514192125] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:30:43,072 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 08:30:43,072 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-06 08:30:43,072 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208429802]
[2024-11-06 08:30:43,073 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:30:43,074 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-06 08:30:43,074 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:30:43,079 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-06 08:30:43,079 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 08:30:43,079 INFO  L87              Difference]: Start difference. First operand 156 states and 251 transitions. Second operand  has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57)
[2024-11-06 08:30:45,512 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:30:50,204 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:30:54,736 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:30:55,302 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:30:55,303 INFO  L93              Difference]: Finished difference Result 453 states and 729 transitions.
[2024-11-06 08:30:55,316 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-06 08:30:55,317 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 360
[2024-11-06 08:30:55,318 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:30:55,321 INFO  L225             Difference]: With dead ends: 453
[2024-11-06 08:30:55,321 INFO  L226             Difference]: Without dead ends: 300
[2024-11-06 08:30:55,322 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 08:30:55,323 INFO  L432           NwaCegarLoop]: 413 mSDtfsCounter, 212 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 22 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time
[2024-11-06 08:30:55,324 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 625 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 33 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time]
[2024-11-06 08:30:55,324 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 300 states.
[2024-11-06 08:30:55,373 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 194.
[2024-11-06 08:30:55,374 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 194 states, 135 states have (on average 1.4222222222222223) internal successors, (192), 135 states have internal predecessors, (192), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57)
[2024-11-06 08:30:55,377 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 306 transitions.
[2024-11-06 08:30:55,378 INFO  L78                 Accepts]: Start accepts. Automaton has 194 states and 306 transitions. Word has length 360
[2024-11-06 08:30:55,381 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:30:55,381 INFO  L471      AbstractCegarLoop]: Abstraction has 194 states and 306 transitions.
[2024-11-06 08:30:55,382 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57)
[2024-11-06 08:30:55,382 INFO  L276                IsEmpty]: Start isEmpty. Operand 194 states and 306 transitions.
[2024-11-06 08:30:55,385 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 361
[2024-11-06 08:30:55,387 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:30:55,387 INFO  L215           NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:55,427 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 08:30:55,588 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 08:30:55,588 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:30:55,589 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:30:55,589 INFO  L85        PathProgramCache]: Analyzing trace with hash -912732326, now seen corresponding path program 1 times
[2024-11-06 08:30:55,589 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:30:55,589 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796556717]
[2024-11-06 08:30:55,590 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:30:55,590 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 08:30:55,590 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:30:55,591 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 08:30:55,592 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 08:30:56,568 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:30:56,624 INFO  L255         TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-06 08:30:56,632 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:31:18,336 INFO  L134       CoverageAnalysis]: Checked inductivity of 6384 backedges. 2828 proven. 114 refuted. 0 times theorem prover too weak. 3442 trivial. 0 not checked.
[2024-11-06 08:31:18,336 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:31:19,320 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:31:19,321 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796556717]
[2024-11-06 08:31:19,321 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796556717] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:31:19,321 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177643420]
[2024-11-06 08:31:19,321 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:31:19,321 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:31:19,321 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:31:19,342 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 08:31:19,343 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-06 08:31:20,072 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:31:20,209 INFO  L255         TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-06 08:31:20,213 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:31:20,893 INFO  L134       CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked.
[2024-11-06 08:31:20,893 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 08:31:20,894 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [177643420] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 08:31:20,894 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-06 08:31:20,894 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2024-11-06 08:31:20,894 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633289378]
[2024-11-06 08:31:20,894 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 08:31:20,895 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-06 08:31:20,895 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 08:31:20,895 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-06 08:31:20,895 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-06 08:31:20,896 INFO  L87              Difference]: Start difference. First operand 194 states and 306 transitions. Second operand  has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57)
[2024-11-06 08:31:23,035 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:31:27,519 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 08:31:27,695 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 08:31:27,695 INFO  L93              Difference]: Finished difference Result 344 states and 548 transitions.
[2024-11-06 08:31:27,697 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-06 08:31:27,697 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 360
[2024-11-06 08:31:27,698 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 08:31:27,699 INFO  L225             Difference]: With dead ends: 344
[2024-11-06 08:31:27,699 INFO  L226             Difference]: Without dead ends: 153
[2024-11-06 08:31:27,700 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 750 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-06 08:31:27,701 INFO  L432           NwaCegarLoop]: 214 mSDtfsCounter, 217 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time
[2024-11-06 08:31:27,701 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 214 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time]
[2024-11-06 08:31:27,702 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 153 states.
[2024-11-06 08:31:27,710 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153.
[2024-11-06 08:31:27,711 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 153 states, 94 states have (on average 1.2553191489361701) internal successors, (118), 94 states have internal predecessors, (118), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57)
[2024-11-06 08:31:27,711 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 232 transitions.
[2024-11-06 08:31:27,712 INFO  L78                 Accepts]: Start accepts. Automaton has 153 states and 232 transitions. Word has length 360
[2024-11-06 08:31:27,712 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 08:31:27,713 INFO  L471      AbstractCegarLoop]: Abstraction has 153 states and 232 transitions.
[2024-11-06 08:31:27,713 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57)
[2024-11-06 08:31:27,713 INFO  L276                IsEmpty]: Start isEmpty. Operand 153 states and 232 transitions.
[2024-11-06 08:31:27,714 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 362
[2024-11-06 08:31:27,714 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 08:31:27,715 INFO  L215           NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:27,754 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 (4)] Ended with exit code 0
[2024-11-06 08:31:28,008 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-06 08:31:28,115 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:31:28,115 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 08:31:28,116 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 08:31:28,116 INFO  L85        PathProgramCache]: Analyzing trace with hash 1631668156, now seen corresponding path program 1 times
[2024-11-06 08:31:28,116 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 08:31:28,116 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577068243]
[2024-11-06 08:31:28,117 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:31:28,117 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 08:31:28,117 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 08:31:28,118 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 08:31:28,118 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2024-11-06 08:31:29,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:31:29,131 INFO  L255         TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-06 08:31:29,137 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:31:50,756 INFO  L134       CoverageAnalysis]: Checked inductivity of 6384 backedges. 2828 proven. 114 refuted. 0 times theorem prover too weak. 3442 trivial. 0 not checked.
[2024-11-06 08:31:50,756 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 08:31:51,729 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 08:31:51,729 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577068243]
[2024-11-06 08:31:51,729 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [577068243] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-06 08:31:51,729 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082212971]
[2024-11-06 08:31:51,730 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 08:31:51,730 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 08:31:51,730 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 08:31:51,731 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-06 08:31:51,732 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-06 08:31:52,457 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 08:31:52,585 INFO  L255         TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-06 08:31:52,590 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 08:32:07,259 INFO  L134       CoverageAnalysis]: Checked inductivity of 6384 backedges. 1178 proven. 15 refuted. 0 times theorem prover too weak. 5191 trivial. 0 not checked.
[2024-11-06 08:32:07,259 INFO  L311         TraceCheckSpWp]: Computing backward predicates...