/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-69.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:44:32,243 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:44:32,297 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 01:44:32,301 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:44:32,302 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:44:32,321 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:44:32,321 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:44:32,321 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:44:32,322 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:44:32,322 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:44:32,322 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:44:32,323 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:44:32,323 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:44:32,326 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:44:32,327 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:44:32,327 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:44:32,327 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:44:32,327 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:44:32,328 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:44:32,328 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:44:32,328 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:44:32,329 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:44:32,329 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:44:32,330 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:44:32,330 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:44:32,330 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:44:32,330 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:44:32,331 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:44:32,331 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:44:32,331 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:44:32,331 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:44:32,332 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:44:32,332 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:44:32,332 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:44:32,332 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:44:32,333 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:44:32,333 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:44:32,333 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:44:32,333 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:44:32,334 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:44:32,334 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:44:32,335 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:44:32,335 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:44:32,335 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:44:32,336 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:44:32,519 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:44:32,545 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:44:32,548 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:44:32,549 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:44:32,550 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:44:32,551 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-69.i
[2024-11-03 01:44:33,793 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:44:34,093 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:44:34,094 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-69.i
[2024-11-03 01:44:34,118 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4666cd52b/c695b5fe2b3d499ea990de90c0e27bfa/FLAG07479f1f6
[2024-11-03 01:44:34,426 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4666cd52b/c695b5fe2b3d499ea990de90c0e27bfa
[2024-11-03 01:44:34,428 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:44:34,429 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:44:34,432 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:44:34,432 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:44:34,437 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:44:34,437 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:44:34" (1/1) ...
[2024-11-03 01:44:34,438 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4371e795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:34, skipping insertion in model container
[2024-11-03 01:44:34,438 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:44:34" (1/1) ...
[2024-11-03 01:44:34,483 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:44:34,643 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_amount500_file-69.i[916,929]
[2024-11-03 01:44:34,842 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:44:34,861 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:44:34,870 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_amount500_file-69.i[916,929]
[2024-11-03 01:44:34,984 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:44:35,004 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:44:35,008 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:35 WrapperNode
[2024-11-03 01:44:35,008 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:44:35,009 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:44:35,009 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:44:35,009 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:44:35,016 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:35" (1/1) ...
[2024-11-03 01:44:35,043 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:35" (1/1) ...
[2024-11-03 01:44:35,099 INFO  L138                Inliner]: procedures = 27, calls = 80, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 540
[2024-11-03 01:44:35,100 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:44:35,101 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:44:35,101 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:44:35,101 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:44:35,111 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:35" (1/1) ...
[2024-11-03 01:44:35,111 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:35" (1/1) ...
[2024-11-03 01:44:35,122 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:35" (1/1) ...
[2024-11-03 01:44:35,166 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].
[2024-11-03 01:44:35,166 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:35" (1/1) ...
[2024-11-03 01:44:35,167 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:35" (1/1) ...
[2024-11-03 01:44:35,197 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:35" (1/1) ...
[2024-11-03 01:44:35,204 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:35" (1/1) ...
[2024-11-03 01:44:35,210 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:35" (1/1) ...
[2024-11-03 01:44:35,214 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:35" (1/1) ...
[2024-11-03 01:44:35,221 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:44:35,222 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:44:35,222 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:44:35,223 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:44:35,224 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:35" (1/1) ...
[2024-11-03 01:44:35,233 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:44:35,245 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:44:35,267 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)
[2024-11-03 01:44:35,270 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
[2024-11-03 01:44:35,292 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:44:35,293 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:44:35,293 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:44:35,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:44:35,293 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:44:35,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:44:35,400 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:44:35,403 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:45:19,565 INFO  L?                        ?]: Removed 64 outVars from TransFormulas that were not future-live.
[2024-11-03 01:45:19,565 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:45:19,579 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:45:19,579 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:45:19,580 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:45:19 BoogieIcfgContainer
[2024-11-03 01:45:19,580 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:45:19,581 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:45:19,582 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:45:19,584 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:45:19,584 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:44:34" (1/3) ...
[2024-11-03 01:45:19,585 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@812b8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:45:19, skipping insertion in model container
[2024-11-03 01:45:19,585 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:35" (2/3) ...
[2024-11-03 01:45:19,585 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@812b8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:45:19, skipping insertion in model container
[2024-11-03 01:45:19,585 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:45:19" (3/3) ...
[2024-11-03 01:45:19,587 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-69.i
[2024-11-03 01:45:19,600 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:45:19,600 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:45:19,667 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:45:19,673 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;@76657310, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:45:19,674 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:45:19,683 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 230 states, 160 states have (on average 1.5875) internal successors, (254), 161 states have internal predecessors, (254), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67)
[2024-11-03 01:45:19,705 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 442
[2024-11-03 01:45:19,707 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:45:19,708 INFO  L215           NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:45:19,709 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:45:19,714 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:45:19,715 INFO  L85        PathProgramCache]: Analyzing trace with hash -2059190550, now seen corresponding path program 1 times
[2024-11-03 01:45:19,722 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:45:19,722 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [419050859]
[2024-11-03 01:45:19,722 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:45:19,725 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:45:19,726 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:45:19,728 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:45:19,729 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process
[2024-11-03 01:45:21,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:45:21,711 INFO  L255         TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:45:21,735 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:45:21,832 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8712 trivial. 0 not checked.
[2024-11-03 01:45:21,833 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:45:30,797 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8712 trivial. 0 not checked.
[2024-11-03 01:45:30,799 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:45:30,799 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [419050859]
[2024-11-03 01:45:30,801 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [419050859] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:45:30,801 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:45:30,801 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:45:30,803 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103026810]
[2024-11-03 01:45:30,803 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:45:30,809 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:45:30,809 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:45:30,835 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:45:30,836 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:45:30,839 INFO  L87              Difference]: Start difference. First operand  has 230 states, 160 states have (on average 1.5875) internal successors, (254), 161 states have internal predecessors, (254), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Second operand  has 2 states, 2 states have (on average 55.5) internal successors, (111), 2 states have internal predecessors, (111), 1 states have call successors, (67), 1 states have call predecessors, (67), 2 states have return successors, (67), 2 states have call predecessors, (67), 1 states have call successors, (67)
[2024-11-03 01:45:30,891 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:45:30,892 INFO  L93              Difference]: Finished difference Result 453 states and 837 transitions.
[2024-11-03 01:45:30,893 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:45:30,894 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 55.5) internal successors, (111), 2 states have internal predecessors, (111), 1 states have call successors, (67), 1 states have call predecessors, (67), 2 states have return successors, (67), 2 states have call predecessors, (67), 1 states have call successors, (67) Word has length 441
[2024-11-03 01:45:30,894 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:45:30,904 INFO  L225             Difference]: With dead ends: 453
[2024-11-03 01:45:30,905 INFO  L226             Difference]: Without dead ends: 226
[2024-11-03 01:45:30,912 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 880 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:45:30,915 INFO  L432           NwaCegarLoop]: 381 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, 381 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
[2024-11-03 01:45:30,917 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:45:30,932 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 226 states.
[2024-11-03 01:45:30,969 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226.
[2024-11-03 01:45:30,972 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 226 states, 157 states have (on average 1.5732484076433122) internal successors, (247), 157 states have internal predecessors, (247), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67)
[2024-11-03 01:45:30,975 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 381 transitions.
[2024-11-03 01:45:30,981 INFO  L78                 Accepts]: Start accepts. Automaton has 226 states and 381 transitions. Word has length 441
[2024-11-03 01:45:30,982 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:45:30,982 INFO  L471      AbstractCegarLoop]: Abstraction has 226 states and 381 transitions.
[2024-11-03 01:45:30,982 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 55.5) internal successors, (111), 2 states have internal predecessors, (111), 1 states have call successors, (67), 1 states have call predecessors, (67), 2 states have return successors, (67), 2 states have call predecessors, (67), 1 states have call successors, (67)
[2024-11-03 01:45:30,983 INFO  L276                IsEmpty]: Start isEmpty. Operand 226 states and 381 transitions.
[2024-11-03 01:45:30,997 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 442
[2024-11-03 01:45:30,999 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:45:30,999 INFO  L215           NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:45:31,015 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0
[2024-11-03 01:45:31,200 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:45:31,201 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:45:31,201 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:45:31,202 INFO  L85        PathProgramCache]: Analyzing trace with hash -378402328, now seen corresponding path program 1 times
[2024-11-03 01:45:31,202 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:45:31,202 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390228061]
[2024-11-03 01:45:31,202 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:45:31,203 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:45:31,203 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:45:31,204 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:45:31,205 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process
[2024-11-03 01:45:32,912 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:45:33,054 INFO  L255         TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:45:33,066 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:45:33,636 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked.
[2024-11-03 01:45:33,637 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:45:42,468 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked.
[2024-11-03 01:45:42,468 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:45:42,468 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1390228061]
[2024-11-03 01:45:42,469 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1390228061] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:45:42,469 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:45:42,469 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:45:42,469 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708382749]
[2024-11-03 01:45:42,469 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:45:42,474 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:45:42,474 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:45:42,475 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:45:42,475 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:45:42,476 INFO  L87              Difference]: Start difference. First operand 226 states and 381 transitions. Second operand  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67)
[2024-11-03 01:45:47,795 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.91s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:45:51,805 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:45:53,391 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:45:53,406 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:45:53,407 INFO  L93              Difference]: Finished difference Result 667 states and 1127 transitions.
[2024-11-03 01:45:53,408 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:45:53,408 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67) Word has length 441
[2024-11-03 01:45:53,409 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:45:53,413 INFO  L225             Difference]: With dead ends: 667
[2024-11-03 01:45:53,413 INFO  L226             Difference]: Without dead ends: 444
[2024-11-03 01:45:53,415 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 879 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:45:53,417 INFO  L432           NwaCegarLoop]: 377 mSDtfsCounter, 368 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time
[2024-11-03 01:45:53,418 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 734 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time]
[2024-11-03 01:45:53,419 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 444 states.
[2024-11-03 01:45:53,461 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 440.
[2024-11-03 01:45:53,463 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 440 states, 303 states have (on average 1.561056105610561) internal successors, (473), 303 states have internal predecessors, (473), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134)
[2024-11-03 01:45:53,465 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 741 transitions.
[2024-11-03 01:45:53,466 INFO  L78                 Accepts]: Start accepts. Automaton has 440 states and 741 transitions. Word has length 441
[2024-11-03 01:45:53,470 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:45:53,470 INFO  L471      AbstractCegarLoop]: Abstraction has 440 states and 741 transitions.
[2024-11-03 01:45:53,471 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67)
[2024-11-03 01:45:53,472 INFO  L276                IsEmpty]: Start isEmpty. Operand 440 states and 741 transitions.
[2024-11-03 01:45:53,478 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 443
[2024-11-03 01:45:53,478 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:45:53,478 INFO  L215           NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:45:53,493 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0
[2024-11-03 01:45:53,679 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:45:53,680 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:45:53,680 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:45:53,680 INFO  L85        PathProgramCache]: Analyzing trace with hash 1198701964, now seen corresponding path program 1 times
[2024-11-03 01:45:53,680 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:45:53,680 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491751388]
[2024-11-03 01:45:53,681 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:45:53,681 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:45:53,681 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:45:53,683 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)
[2024-11-03 01:45:53,684 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 01:45:55,174 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:45:55,302 INFO  L255         TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:45:55,308 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:45:56,051 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked.
[2024-11-03 01:45:56,052 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:46:06,820 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked.
[2024-11-03 01:46:06,821 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:46:06,821 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491751388]
[2024-11-03 01:46:06,821 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1491751388] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:46:06,821 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:46:06,821 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:46:06,822 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355492930]
[2024-11-03 01:46:06,822 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:46:06,822 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:46:06,822 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:46:06,823 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:46:06,823 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:46:06,823 INFO  L87              Difference]: Start difference. First operand 440 states and 741 transitions. Second operand  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67)
[2024-11-03 01:46:13,706 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:46:17,720 WARN  L539   Checker$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 []
[2024-11-03 01:46:17,738 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:46:17,738 INFO  L93              Difference]: Finished difference Result 1308 states and 2205 transitions.
[2024-11-03 01:46:18,090 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:46:18,091 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67) Word has length 442
[2024-11-03 01:46:18,092 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:46:18,097 INFO  L225             Difference]: With dead ends: 1308
[2024-11-03 01:46:18,098 INFO  L226             Difference]: Without dead ends: 871
[2024-11-03 01:46:18,099 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 882 GetRequests, 881 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:46:18,100 INFO  L432           NwaCegarLoop]: 478 mSDtfsCounter, 357 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time
[2024-11-03 01:46:18,100 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 840 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time]
[2024-11-03 01:46:18,101 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 871 states.
[2024-11-03 01:46:18,151 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 869.
[2024-11-03 01:46:18,152 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 869 states, 596 states have (on average 1.5402684563758389) internal successors, (918), 596 states have internal predecessors, (918), 268 states have call successors, (268), 4 states have call predecessors, (268), 4 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268)
[2024-11-03 01:46:18,157 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1454 transitions.
[2024-11-03 01:46:18,159 INFO  L78                 Accepts]: Start accepts. Automaton has 869 states and 1454 transitions. Word has length 442
[2024-11-03 01:46:18,160 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:46:18,160 INFO  L471      AbstractCegarLoop]: Abstraction has 869 states and 1454 transitions.
[2024-11-03 01:46:18,160 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 1 states have call successors, (67)
[2024-11-03 01:46:18,160 INFO  L276                IsEmpty]: Start isEmpty. Operand 869 states and 1454 transitions.
[2024-11-03 01:46:18,163 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 443
[2024-11-03 01:46:18,163 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:46:18,163 INFO  L215           NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:46:18,178 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0
[2024-11-03 01:46:18,364 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
[2024-11-03 01:46:18,365 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:46:18,365 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:46:18,365 INFO  L85        PathProgramCache]: Analyzing trace with hash 1899766542, now seen corresponding path program 1 times
[2024-11-03 01:46:18,365 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:46:18,365 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580101411]
[2024-11-03 01:46:18,365 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:46:18,366 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:46:18,366 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:46:18,367 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:46:18,367 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 01:46:19,883 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:46:20,022 INFO  L255         TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:46:20,028 INFO  L278         TraceCheckSpWp]: Computing forward predicates...