/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-57.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:42:53,994 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:42:54,037 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 01:42:54,040 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:42:54,041 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:42:54,054 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:42:54,055 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:42:54,055 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:42:54,057 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:42:54,057 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:42:54,057 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:42:54,058 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:42:54,058 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:42:54,058 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:42:54,058 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:42:54,059 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:42:54,059 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:42:54,059 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:42:54,059 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:42:54,059 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:42:54,060 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:42:54,062 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:42:54,062 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:42:54,062 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:42:54,063 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:42:54,063 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:42:54,064 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:42:54,064 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:42:54,064 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:42:54,064 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:42:54,064 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:42:54,064 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:42:54,064 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:42:54,065 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:42:54,065 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:42:54,065 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:42:54,065 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:42:54,065 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:42:54,065 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:42:54,066 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:42:54,066 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:42:54,066 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:42:54,066 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:42:54,066 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:42:54,067 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:42:54,227 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:42:54,248 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:42:54,251 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:42:54,252 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:42:54,252 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:42:54,253 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-57.i
[2024-11-03 01:42:55,442 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:42:55,645 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:42:55,646 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-57.i
[2024-11-03 01:42:55,655 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/942f8d137/932f7226eefa489eb42bcb83f39675f8/FLAGa8d35557b
[2024-11-03 01:42:55,672 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/942f8d137/932f7226eefa489eb42bcb83f39675f8
[2024-11-03 01:42:55,674 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:42:55,675 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:42:55,677 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:42:55,677 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:42:55,681 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:42:55,681 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:42:55" (1/1) ...
[2024-11-03 01:42:55,682 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce053bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:55, skipping insertion in model container
[2024-11-03 01:42:55,682 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:42:55" (1/1) ...
[2024-11-03 01:42:55,718 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:42:55,856 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-57.i[916,929]
[2024-11-03 01:42:56,038 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:42:56,071 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:42:56,081 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-57.i[916,929]
[2024-11-03 01:42:56,185 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:42:56,207 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:42:56,208 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:56 WrapperNode
[2024-11-03 01:42:56,209 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:42:56,210 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:42:56,210 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:42:56,210 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:42:56,214 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:56" (1/1) ...
[2024-11-03 01:42:56,233 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:56" (1/1) ...
[2024-11-03 01:42:56,290 INFO  L138                Inliner]: procedures = 27, calls = 93, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 655
[2024-11-03 01:42:56,290 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:42:56,291 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:42:56,291 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:42:56,291 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:42:56,299 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:56" (1/1) ...
[2024-11-03 01:42:56,299 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:56" (1/1) ...
[2024-11-03 01:42:56,313 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:56" (1/1) ...
[2024-11-03 01:42:56,346 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 01:42:56,346 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:56" (1/1) ...
[2024-11-03 01:42:56,347 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:56" (1/1) ...
[2024-11-03 01:42:56,378 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:56" (1/1) ...
[2024-11-03 01:42:56,390 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:56" (1/1) ...
[2024-11-03 01:42:56,396 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:56" (1/1) ...
[2024-11-03 01:42:56,400 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:56" (1/1) ...
[2024-11-03 01:42:56,410 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:42:56,411 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:42:56,411 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:42:56,412 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:42:56,412 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:56" (1/1) ...
[2024-11-03 01:42:56,420 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:42:56,430 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:42:56,441 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 01:42:56,442 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 01:42:56,460 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:42:56,460 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:42:56,460 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:42:56,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:42:56,460 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:42:56,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:42:56,571 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:42:56,573 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:43:49,015 INFO  L?                        ?]: Removed 71 outVars from TransFormulas that were not future-live.
[2024-11-03 01:43:49,015 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:43:49,035 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:43:49,036 INFO  L316             CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-03 01:43:49,037 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:43:49 BoogieIcfgContainer
[2024-11-03 01:43:49,037 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:43:49,040 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:43:49,040 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:43:49,042 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:43:49,043 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:42:55" (1/3) ...
[2024-11-03 01:43:49,043 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b332d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:43:49, skipping insertion in model container
[2024-11-03 01:43:49,043 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:56" (2/3) ...
[2024-11-03 01:43:49,044 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b332d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:43:49, skipping insertion in model container
[2024-11-03 01:43:49,044 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:43:49" (3/3) ...
[2024-11-03 01:43:49,045 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-57.i
[2024-11-03 01:43:49,057 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:43:49,057 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:43:49,120 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:43:49,125 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;@68c647, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:43:49,125 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:43:49,131 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 258 states, 175 states have (on average 1.5142857142857142) internal successors, (265), 176 states have internal predecessors, (265), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80)
[2024-11-03 01:43:49,158 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 540
[2024-11-03 01:43:49,158 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:43:49,160 INFO  L215           NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:49,160 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:43:49,164 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:43:49,165 INFO  L85        PathProgramCache]: Analyzing trace with hash -1052007772, now seen corresponding path program 1 times
[2024-11-03 01:43:49,171 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:43:49,172 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304811627]
[2024-11-03 01:43:49,172 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:43:49,174 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:43:49,174 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:43:49,176 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 01:43:49,177 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 01:43:51,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:43:51,504 INFO  L255         TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:43:51,524 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:43:51,607 INFO  L134       CoverageAnalysis]: Checked inductivity of 12640 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 12482 trivial. 0 not checked.
[2024-11-03 01:43:51,608 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:44:03,530 INFO  L134       CoverageAnalysis]: Checked inductivity of 12640 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 12482 trivial. 0 not checked.
[2024-11-03 01:44:03,530 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:44:03,531 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304811627]
[2024-11-03 01:44:03,531 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [304811627] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:44:03,531 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:44:03,531 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:44:03,533 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108867819]
[2024-11-03 01:44:03,533 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:44:03,537 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:44:03,537 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:44:03,557 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:44:03,557 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:44:03,560 INFO  L87              Difference]: Start difference. First operand  has 258 states, 175 states have (on average 1.5142857142857142) internal successors, (265), 176 states have internal predecessors, (265), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) Second operand  has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 1 states have call successors, (80), 1 states have call predecessors, (80), 2 states have return successors, (80), 2 states have call predecessors, (80), 1 states have call successors, (80)
[2024-11-03 01:44:03,608 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:44:03,608 INFO  L93              Difference]: Finished difference Result 509 states and 924 transitions.
[2024-11-03 01:44:03,609 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:44:03,611 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 1 states have call successors, (80), 1 states have call predecessors, (80), 2 states have return successors, (80), 2 states have call predecessors, (80), 1 states have call successors, (80) Word has length 539
[2024-11-03 01:44:03,611 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:44:03,618 INFO  L225             Difference]: With dead ends: 509
[2024-11-03 01:44:03,618 INFO  L226             Difference]: Without dead ends: 254
[2024-11-03 01:44:03,623 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1076 GetRequests, 1076 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 01:44:03,625 INFO  L432           NwaCegarLoop]: 417 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, 417 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 01:44:03,626 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:44:03,642 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 254 states.
[2024-11-03 01:44:03,686 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254.
[2024-11-03 01:44:03,687 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 254 states, 172 states have (on average 1.494186046511628) internal successors, (257), 172 states have internal predecessors, (257), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80)
[2024-11-03 01:44:03,693 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 417 transitions.
[2024-11-03 01:44:03,695 INFO  L78                 Accepts]: Start accepts. Automaton has 254 states and 417 transitions. Word has length 539
[2024-11-03 01:44:03,696 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:44:03,696 INFO  L471      AbstractCegarLoop]: Abstraction has 254 states and 417 transitions.
[2024-11-03 01:44:03,696 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 1 states have call successors, (80), 1 states have call predecessors, (80), 2 states have return successors, (80), 2 states have call predecessors, (80), 1 states have call successors, (80)
[2024-11-03 01:44:03,697 INFO  L276                IsEmpty]: Start isEmpty. Operand 254 states and 417 transitions.
[2024-11-03 01:44:03,709 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 540
[2024-11-03 01:44:03,709 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:44:03,710 INFO  L215           NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:03,728 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0
[2024-11-03 01:44:03,910 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 01:44:03,911 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:44:03,911 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:44:03,912 INFO  L85        PathProgramCache]: Analyzing trace with hash 374047328, now seen corresponding path program 1 times
[2024-11-03 01:44:03,912 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:44:03,912 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2044569539]
[2024-11-03 01:44:03,912 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:44:03,912 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:44:03,912 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:44:03,914 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 01:44:03,914 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 01:44:05,939 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:44:06,117 INFO  L255         TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:44:06,126 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:44:06,445 INFO  L134       CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked.
[2024-11-03 01:44:06,445 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:44:18,403 INFO  L134       CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked.
[2024-11-03 01:44:18,406 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:44:18,406 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2044569539]
[2024-11-03 01:44:18,406 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2044569539] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:44:18,406 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:44:18,406 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:44:18,407 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108762227]
[2024-11-03 01:44:18,407 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:44:18,409 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:44:18,411 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:44:18,412 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:44:18,412 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:44:18,413 INFO  L87              Difference]: Start difference. First operand 254 states and 417 transitions. Second operand  has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80)
[2024-11-03 01:44:23,893 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:44:27,912 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:44:27,925 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:44:27,925 INFO  L93              Difference]: Finished difference Result 756 states and 1245 transitions.
[2024-11-03 01:44:28,320 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:44:28,321 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 539
[2024-11-03 01:44:28,322 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:44:28,326 INFO  L225             Difference]: With dead ends: 756
[2024-11-03 01:44:28,326 INFO  L226             Difference]: Without dead ends: 505
[2024-11-03 01:44:28,327 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1076 GetRequests, 1075 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 01:44:28,328 INFO  L432           NwaCegarLoop]: 415 mSDtfsCounter, 411 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time
[2024-11-03 01:44:28,329 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 822 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time]
[2024-11-03 01:44:28,333 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 505 states.
[2024-11-03 01:44:28,383 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 503.
[2024-11-03 01:44:28,384 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 503 states, 340 states have (on average 1.4941176470588236) internal successors, (508), 340 states have internal predecessors, (508), 160 states have call successors, (160), 2 states have call predecessors, (160), 2 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160)
[2024-11-03 01:44:28,387 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 828 transitions.
[2024-11-03 01:44:28,387 INFO  L78                 Accepts]: Start accepts. Automaton has 503 states and 828 transitions. Word has length 539
[2024-11-03 01:44:28,389 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:44:28,389 INFO  L471      AbstractCegarLoop]: Abstraction has 503 states and 828 transitions.
[2024-11-03 01:44:28,389 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80)
[2024-11-03 01:44:28,389 INFO  L276                IsEmpty]: Start isEmpty. Operand 503 states and 828 transitions.
[2024-11-03 01:44:28,420 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 540
[2024-11-03 01:44:28,421 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:44:28,421 INFO  L215           NwaCegarLoop]: trace histogram [80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:28,440 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 01:44:28,621 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 01:44:28,622 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:44:28,622 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:44:28,623 INFO  L85        PathProgramCache]: Analyzing trace with hash 2108151778, now seen corresponding path program 1 times
[2024-11-03 01:44:28,623 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:44:28,623 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1927425071]
[2024-11-03 01:44:28,623 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:44:28,623 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:44:28,623 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:44:28,625 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 01:44:28,626 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 01:44:30,607 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:44:30,751 INFO  L255         TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:44:30,758 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:44:32,662 INFO  L134       CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked.
[2024-11-03 01:44:32,662 INFO  L311         TraceCheckSpWp]: Computing backward predicates...