/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy WOLF -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-1.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-05 23:19:17,321 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-05 23:19:17,390 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-05 23:19:17,395 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-05 23:19:17,395 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-05 23:19:17,427 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-05 23:19:17,427 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-05 23:19:17,428 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-05 23:19:17,428 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-05 23:19:17,428 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-05 23:19:17,429 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-05 23:19:17,429 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-05 23:19:17,430 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-05 23:19:17,430 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-05 23:19:17,430 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-05 23:19:17,431 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-05 23:19:17,431 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-05 23:19:17,431 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-05 23:19:17,432 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-05 23:19:17,432 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-05 23:19:17,432 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-05 23:19:17,433 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-05 23:19:17,433 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-05 23:19:17,433 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-05 23:19:17,433 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-05 23:19:17,434 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-05 23:19:17,434 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-05 23:19:17,434 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-05 23:19:17,434 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-05 23:19:17,435 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-05 23:19:17,435 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-05 23:19:17,435 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-05 23:19:17,435 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-05 23:19:17,436 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-05 23:19:17,440 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 23:19:17,441 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-05 23:19:17,441 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-05 23:19:17,441 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-05 23:19:17,441 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-05 23:19:17,442 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-05 23:19:17,442 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-05 23:19:17,442 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-05 23:19:17,442 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-05 23:19:17,443 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-05 23:19:17,443 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF
[2024-11-05 23:19:17,655 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-05 23:19:17,677 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-05 23:19:17,679 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-05 23:19:17,680 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-05 23:19:17,681 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-05 23:19:17,683 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-1.i
[2024-11-05 23:19:19,102 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-05 23:19:19,329 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-05 23:19:19,330 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-1.i
[2024-11-05 23:19:19,343 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/086df6682/f930c8abeea44124b42bd75770ae21ce/FLAG692bc552e
[2024-11-05 23:19:19,683 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/086df6682/f930c8abeea44124b42bd75770ae21ce
[2024-11-05 23:19:19,687 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-05 23:19:19,688 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-05 23:19:19,689 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-05 23:19:19,689 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-05 23:19:19,694 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-05 23:19:19,695 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:19:19" (1/1) ...
[2024-11-05 23:19:19,696 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445fc325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:19:19, skipping insertion in model container
[2024-11-05 23:19:19,696 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 11:19:19" (1/1) ...
[2024-11-05 23:19:19,734 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-05 23:19:19,897 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-1.i[915,928]
[2024-11-05 23:19:20,041 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 23:19:20,062 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-05 23:19:20,076 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-1.i[915,928]
[2024-11-05 23:19:20,169 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 23:19:20,201 INFO  L204         MainTranslator]: Completed translation
[2024-11-05 23:19:20,204 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:19:20 WrapperNode
[2024-11-05 23:19:20,204 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-05 23:19:20,205 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-05 23:19:20,205 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-05 23:19:20,205 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-05 23:19:20,212 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:19:20" (1/1) ...
[2024-11-05 23:19:20,233 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:19:20" (1/1) ...
[2024-11-05 23:19:20,266 INFO  L138                Inliner]: procedures = 27, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 348
[2024-11-05 23:19:20,267 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-05 23:19:20,268 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-05 23:19:20,268 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-05 23:19:20,268 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-05 23:19:20,279 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:19:20" (1/1) ...
[2024-11-05 23:19:20,279 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:19:20" (1/1) ...
[2024-11-05 23:19:20,293 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:19:20" (1/1) ...
[2024-11-05 23:19:20,327 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-05 23:19:20,327 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:19:20" (1/1) ...
[2024-11-05 23:19:20,327 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:19:20" (1/1) ...
[2024-11-05 23:19:20,357 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:19:20" (1/1) ...
[2024-11-05 23:19:20,365 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:19:20" (1/1) ...
[2024-11-05 23:19:20,369 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:19:20" (1/1) ...
[2024-11-05 23:19:20,382 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:19:20" (1/1) ...
[2024-11-05 23:19:20,392 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-05 23:19:20,393 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-05 23:19:20,393 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-05 23:19:20,393 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-05 23:19:20,394 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:19:20" (1/1) ...
[2024-11-05 23:19:20,402 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 23:19:20,413 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-05 23:19:20,430 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-05 23:19:20,433 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-05 23:19:20,460 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-05 23:19:20,461 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-05 23:19:20,461 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-05 23:19:20,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-05 23:19:20,461 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-05 23:19:20,463 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-05 23:19:20,568 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-05 23:19:20,570 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-05 23:19:32,439 INFO  L?                        ?]: Removed 34 outVars from TransFormulas that were not future-live.
[2024-11-05 23:19:32,440 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-05 23:19:32,460 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-05 23:19:32,461 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-05 23:19:32,461 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:19:32 BoogieIcfgContainer
[2024-11-05 23:19:32,461 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-05 23:19:32,465 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-05 23:19:32,465 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-05 23:19:32,468 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-05 23:19:32,468 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 11:19:19" (1/3) ...
[2024-11-05 23:19:32,469 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5251baee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:19:32, skipping insertion in model container
[2024-11-05 23:19:32,470 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 11:19:20" (2/3) ...
[2024-11-05 23:19:32,470 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5251baee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:19:32, skipping insertion in model container
[2024-11-05 23:19:32,470 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:19:32" (3/3) ...
[2024-11-05 23:19:32,473 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-1.i
[2024-11-05 23:19:32,489 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-05 23:19:32,489 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-05 23:19:32,560 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-05 23:19:32,567 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;@11db8af9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-05 23:19:32,568 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-05 23:19:32,573 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 139 states, 93 states have (on average 1.5268817204301075) internal successors, (142), 94 states have internal predecessors, (142), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-05 23:19:32,589 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 284
[2024-11-05 23:19:32,590 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:19:32,591 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:19:32,591 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:19:32,596 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:19:32,596 INFO  L85        PathProgramCache]: Analyzing trace with hash -234542320, now seen corresponding path program 1 times
[2024-11-05 23:19:32,610 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:19:32,610 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375033181]
[2024-11-05 23:19:32,610 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:19:32,611 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 23:19:32,611 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:19:32,612 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-05 23:19:32,614 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2024-11-05 23:19:33,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:19:33,421 INFO  L255         TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-05 23:19:33,436 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:19:33,508 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 1448 proven. 0 refuted. 0 times theorem prover too weak. 2164 trivial. 0 not checked.
[2024-11-05 23:19:33,508 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:19:33,509 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:19:33,509 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375033181]
[2024-11-05 23:19:33,510 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375033181] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:19:33,510 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-05 23:19:33,510 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-05 23:19:33,511 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699314250]
[2024-11-05 23:19:33,512 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:19:33,517 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-05 23:19:33,518 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:19:33,539 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-05 23:19:33,540 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 23:19:33,542 INFO  L87              Difference]: Start difference. First operand  has 139 states, 93 states have (on average 1.5268817204301075) internal successors, (142), 94 states have internal predecessors, (142), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand  has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43)
[2024-11-05 23:19:33,591 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:19:33,591 INFO  L93              Difference]: Finished difference Result 271 states and 493 transitions.
[2024-11-05 23:19:33,592 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-05 23:19:33,594 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 283
[2024-11-05 23:19:33,594 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:19:33,602 INFO  L225             Difference]: With dead ends: 271
[2024-11-05 23:19:33,602 INFO  L226             Difference]: Without dead ends: 135
[2024-11-05 23:19:33,610 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 23:19:33,614 INFO  L432           NwaCegarLoop]: 221 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, 221 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-05 23:19:33,614 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-05 23:19:33,633 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 135 states.
[2024-11-05 23:19:33,676 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135.
[2024-11-05 23:19:33,677 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 135 states, 90 states have (on average 1.5) internal successors, (135), 90 states have internal predecessors, (135), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-05 23:19:33,680 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 221 transitions.
[2024-11-05 23:19:33,683 INFO  L78                 Accepts]: Start accepts. Automaton has 135 states and 221 transitions. Word has length 283
[2024-11-05 23:19:33,683 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:19:33,683 INFO  L471      AbstractCegarLoop]: Abstraction has 135 states and 221 transitions.
[2024-11-05 23:19:33,684 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43)
[2024-11-05 23:19:33,684 INFO  L276                IsEmpty]: Start isEmpty. Operand 135 states and 221 transitions.
[2024-11-05 23:19:33,691 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 284
[2024-11-05 23:19:33,692 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:19:33,692 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:19:33,721 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
[2024-11-05 23:19:33,893 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 23:19:33,894 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:19:33,894 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:19:33,894 INFO  L85        PathProgramCache]: Analyzing trace with hash 1370977302, now seen corresponding path program 1 times
[2024-11-05 23:19:33,896 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:19:33,896 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501426691]
[2024-11-05 23:19:33,896 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:19:33,896 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 23:19:33,897 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:19:33,900 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-05 23:19:33,902 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2024-11-05 23:19:34,722 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:19:34,749 INFO  L255         TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-05 23:19:34,761 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:19:49,003 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 1906 proven. 171 refuted. 0 times theorem prover too weak. 1535 trivial. 0 not checked.
[2024-11-05 23:19:49,004 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 23:19:53,892 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:19:53,893 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501426691]
[2024-11-05 23:19:53,893 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [501426691] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-05 23:19:53,893 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [35053178]
[2024-11-05 23:19:53,893 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:19:53,893 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-05 23:19:53,894 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-05 23:19:53,913 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-05 23:19:53,916 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-05 23:19:54,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:19:54,604 INFO  L255         TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-05 23:19:54,611 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:19:54,886 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked.
[2024-11-05 23:19:54,886 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:19:54,886 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [35053178] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:19:54,886 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-05 23:19:54,886 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 12
[2024-11-05 23:19:54,887 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887022518]
[2024-11-05 23:19:54,887 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:19:54,889 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-05 23:19:54,889 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:19:54,890 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-05 23:19:54,891 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210
[2024-11-05 23:19:54,891 INFO  L87              Difference]: Start difference. First operand 135 states and 221 transitions. Second operand  has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43)
[2024-11-05 23:19:59,276 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 23:20:03,287 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 []
[2024-11-05 23:20:03,291 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:20:03,291 INFO  L93              Difference]: Finished difference Result 315 states and 520 transitions.
[2024-11-05 23:20:03,347 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-05 23:20:03,348 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 283
[2024-11-05 23:20:03,350 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:20:03,352 INFO  L225             Difference]: With dead ends: 315
[2024-11-05 23:20:03,352 INFO  L226             Difference]: Without dead ends: 183
[2024-11-05 23:20:03,354 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 749 GetRequests, 736 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210
[2024-11-05 23:20:03,355 INFO  L432           NwaCegarLoop]: 216 mSDtfsCounter, 74 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time
[2024-11-05 23:20:03,355 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 420 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time]
[2024-11-05 23:20:03,356 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 183 states.
[2024-11-05 23:20:03,368 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 143.
[2024-11-05 23:20:03,371 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 143 states, 98 states have (on average 1.510204081632653) internal successors, (148), 98 states have internal predecessors, (148), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-05 23:20:03,373 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 234 transitions.
[2024-11-05 23:20:03,373 INFO  L78                 Accepts]: Start accepts. Automaton has 143 states and 234 transitions. Word has length 283
[2024-11-05 23:20:03,375 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:20:03,375 INFO  L471      AbstractCegarLoop]: Abstraction has 143 states and 234 transitions.
[2024-11-05 23:20:03,376 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43)
[2024-11-05 23:20:03,376 INFO  L276                IsEmpty]: Start isEmpty. Operand 143 states and 234 transitions.
[2024-11-05 23:20:03,379 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 284
[2024-11-05 23:20:03,380 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:20:03,380 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:20:03,390 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2024-11-05 23:20:03,604 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
[2024-11-05 23:20:03,781 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 23:20:03,781 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:20:03,782 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:20:03,782 INFO  L85        PathProgramCache]: Analyzing trace with hash 1236963796, now seen corresponding path program 1 times
[2024-11-05 23:20:03,782 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:20:03,783 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084527480]
[2024-11-05 23:20:03,783 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:20:03,783 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 23:20:03,783 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:20:03,786 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-05 23:20:03,787 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2024-11-05 23:20:04,557 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:20:04,588 INFO  L255         TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-05 23:20:04,594 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:20:19,221 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 1906 proven. 171 refuted. 0 times theorem prover too weak. 1535 trivial. 0 not checked.
[2024-11-05 23:20:19,221 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 23:20:23,925 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-05 23:20:23,925 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084527480]
[2024-11-05 23:20:23,925 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084527480] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-05 23:20:23,925 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [974460419]
[2024-11-05 23:20:23,925 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:20:23,926 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-05 23:20:23,926 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-05 23:20:23,927 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-05 23:20:23,929 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2024-11-05 23:20:24,538 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:20:24,585 INFO  L255         TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-05 23:20:24,589 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 23:20:28,655 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked.
[2024-11-05 23:20:28,655 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-05 23:20:28,655 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [974460419] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-05 23:20:28,655 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-05 23:20:28,655 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10] total 11
[2024-11-05 23:20:28,656 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656585055]
[2024-11-05 23:20:28,656 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 23:20:28,656 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-05 23:20:28,657 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-05 23:20:28,657 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-05 23:20:28,657 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210
[2024-11-05 23:20:28,658 INFO  L87              Difference]: Start difference. First operand 143 states and 234 transitions. Second operand  has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43)
[2024-11-05 23:20:32,874 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 23:20:37,128 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 23:20:37,231 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 23:20:37,231 INFO  L93              Difference]: Finished difference Result 423 states and 696 transitions.
[2024-11-05 23:20:37,232 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-05 23:20:37,233 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 283
[2024-11-05 23:20:37,234 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 23:20:37,237 INFO  L225             Difference]: With dead ends: 423
[2024-11-05 23:20:37,237 INFO  L226             Difference]: Without dead ends: 283
[2024-11-05 23:20:37,239 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 749 GetRequests, 736 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210
[2024-11-05 23:20:37,240 INFO  L432           NwaCegarLoop]: 218 mSDtfsCounter, 74 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time
[2024-11-05 23:20:37,240 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 427 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time]
[2024-11-05 23:20:37,241 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 283 states.
[2024-11-05 23:20:37,279 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 281.
[2024-11-05 23:20:37,280 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 281 states, 192 states have (on average 1.5104166666666667) internal successors, (290), 192 states have internal predecessors, (290), 86 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86)
[2024-11-05 23:20:37,282 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 462 transitions.
[2024-11-05 23:20:37,283 INFO  L78                 Accepts]: Start accepts. Automaton has 281 states and 462 transitions. Word has length 283
[2024-11-05 23:20:37,284 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 23:20:37,284 INFO  L471      AbstractCegarLoop]: Abstraction has 281 states and 462 transitions.
[2024-11-05 23:20:37,285 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43)
[2024-11-05 23:20:37,285 INFO  L276                IsEmpty]: Start isEmpty. Operand 281 states and 462 transitions.
[2024-11-05 23:20:37,287 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 284
[2024-11-05 23:20:37,287 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 23:20:37,287 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 23:20:37,321 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 (5)] Forceful destruction successful, exit code 0
[2024-11-05 23:20:37,495 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0
[2024-11-05 23:20:37,688 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/cvc4 --incremental --print-success --lang smt
[2024-11-05 23:20:37,689 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 23:20:37,689 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 23:20:37,689 INFO  L85        PathProgramCache]: Analyzing trace with hash -42899882, now seen corresponding path program 1 times
[2024-11-05 23:20:37,690 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-05 23:20:37,690 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227598465]
[2024-11-05 23:20:37,690 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 23:20:37,691 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 23:20:37,691 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 23:20:37,692 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)
[2024-11-05 23:20:37,694 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
[2024-11-05 23:20:38,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 23:20:38,549 INFO  L255         TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-05 23:20:38,556 INFO  L278         TraceCheckSpWp]: Computing forward predicates...