/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-5.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:42:04,047 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:42:04,125 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 01:42:04,129 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:42:04,133 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:42:04,156 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:42:04,161 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:42:04,162 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:42:04,162 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:42:04,163 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:42:04,163 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:42:04,163 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:42:04,163 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:42:04,164 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:42:04,164 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:42:04,164 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:42:04,164 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:42:04,165 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:42:04,165 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:42:04,168 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:42:04,168 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:42:04,171 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:42:04,171 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:42:04,171 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:42:04,171 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:42:04,171 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:42:04,171 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:42:04,172 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:42:04,172 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:42:04,172 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:42:04,172 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:42:04,172 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:42:04,172 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:42:04,173 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:42:04,173 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:42:04,173 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:42:04,173 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:42:04,173 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:42:04,174 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:42:04,174 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:42:04,174 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:42:04,178 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:42:04,178 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:42:04,179 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:42:04,179 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:42:04,401 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:42:04,420 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:42:04,421 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:42:04,422 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:42:04,423 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:42:04,423 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-5.i
[2024-11-03 01:42:05,695 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:42:05,948 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:42:05,949 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-5.i
[2024-11-03 01:42:05,971 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bddc50460/179fa9530d7d491d9b1deeeaf8e8d025/FLAG89e66a19b
[2024-11-03 01:42:06,317 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bddc50460/179fa9530d7d491d9b1deeeaf8e8d025
[2024-11-03 01:42:06,320 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:42:06,323 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:42:06,326 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:42:06,326 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:42:06,330 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:42:06,331 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:42:06" (1/1) ...
[2024-11-03 01:42:06,336 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d6704c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:06, skipping insertion in model container
[2024-11-03 01:42:06,336 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:42:06" (1/1) ...
[2024-11-03 01:42:06,396 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:42:06,564 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-5.i[915,928]
[2024-11-03 01:42:06,755 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:42:06,782 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:42:06,798 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-5.i[915,928]
[2024-11-03 01:42:06,880 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:42:06,899 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:42:06,899 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:06 WrapperNode
[2024-11-03 01:42:06,899 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:42:06,900 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:42:06,900 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:42:06,901 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:42:06,906 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:06" (1/1) ...
[2024-11-03 01:42:06,930 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:06" (1/1) ...
[2024-11-03 01:42:06,975 INFO  L138                Inliner]: procedures = 27, calls = 102, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 633
[2024-11-03 01:42:06,975 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:42:06,977 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:42:06,977 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:42:06,977 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:42:06,986 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:06" (1/1) ...
[2024-11-03 01:42:06,986 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:06" (1/1) ...
[2024-11-03 01:42:07,000 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:06" (1/1) ...
[2024-11-03 01:42:07,047 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 01:42:07,048 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:06" (1/1) ...
[2024-11-03 01:42:07,048 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:06" (1/1) ...
[2024-11-03 01:42:07,076 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:06" (1/1) ...
[2024-11-03 01:42:07,084 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:06" (1/1) ...
[2024-11-03 01:42:07,098 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:06" (1/1) ...
[2024-11-03 01:42:07,105 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:06" (1/1) ...
[2024-11-03 01:42:07,119 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:42:07,120 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:42:07,120 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:42:07,120 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:42:07,121 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:06" (1/1) ...
[2024-11-03 01:42:07,130 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:42:07,140 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:42:07,160 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 01:42:07,167 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 01:42:07,191 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:42:07,191 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:42:07,192 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:42:07,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:42:07,192 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:42:07,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:42:07,322 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:42:07,323 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:42:49,916 INFO  L?                        ?]: Removed 82 outVars from TransFormulas that were not future-live.
[2024-11-03 01:42:49,917 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:42:49,937 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:42:49,938 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:42:49,941 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:42:49 BoogieIcfgContainer
[2024-11-03 01:42:49,941 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:42:49,943 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:42:49,943 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:42:49,946 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:42:49,946 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:42:06" (1/3) ...
[2024-11-03 01:42:49,947 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8413b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:42:49, skipping insertion in model container
[2024-11-03 01:42:49,947 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:42:06" (2/3) ...
[2024-11-03 01:42:49,947 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8413b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:42:49, skipping insertion in model container
[2024-11-03 01:42:49,948 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:42:49" (3/3) ...
[2024-11-03 01:42:49,949 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-5.i
[2024-11-03 01:42:49,961 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:42:49,961 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:42:50,031 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:42:50,037 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;@5c1df751, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:42:50,038 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:42:50,043 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 269 states, 177 states have (on average 1.5254237288135593) internal successors, (270), 178 states have internal predecessors, (270), 89 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89)
[2024-11-03 01:42:50,071 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 574
[2024-11-03 01:42:50,071 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:42:50,072 INFO  L215           NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:50,073 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:42:50,078 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:42:50,078 INFO  L85        PathProgramCache]: Analyzing trace with hash -693089825, now seen corresponding path program 1 times
[2024-11-03 01:42:50,085 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:42:50,086 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105682313]
[2024-11-03 01:42:50,086 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:42:50,088 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:42:50,088 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:42:50,091 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 01:42:50,092 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 01:42:51,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:42:52,086 INFO  L255         TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:42:52,104 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:42:52,277 INFO  L134       CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked.
[2024-11-03 01:42:52,278 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:43:05,597 INFO  L134       CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked.
[2024-11-03 01:43:05,602 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:43:05,603 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105682313]
[2024-11-03 01:43:05,604 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1105682313] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:43:05,604 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:43:05,604 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:43:05,606 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333301053]
[2024-11-03 01:43:05,607 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:43:05,621 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:43:05,621 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:43:05,665 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:43:05,665 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:43:05,674 INFO  L87              Difference]: Start difference. First operand  has 269 states, 177 states have (on average 1.5254237288135593) internal successors, (270), 178 states have internal predecessors, (270), 89 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) Second operand  has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89)
[2024-11-03 01:43:05,761 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:43:05,761 INFO  L93              Difference]: Finished difference Result 531 states and 979 transitions.
[2024-11-03 01:43:05,762 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:43:05,764 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 573
[2024-11-03 01:43:05,764 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:43:05,772 INFO  L225             Difference]: With dead ends: 531
[2024-11-03 01:43:05,772 INFO  L226             Difference]: Without dead ends: 265
[2024-11-03 01:43:05,777 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1144 GetRequests, 1144 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 01:43:05,780 INFO  L432           NwaCegarLoop]: 438 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, 438 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 01:43:05,781 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:43:05,798 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 265 states.
[2024-11-03 01:43:05,855 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265.
[2024-11-03 01:43:05,858 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 265 states, 174 states have (on average 1.4942528735632183) internal successors, (260), 174 states have internal predecessors, (260), 89 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89)
[2024-11-03 01:43:05,871 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 438 transitions.
[2024-11-03 01:43:05,873 INFO  L78                 Accepts]: Start accepts. Automaton has 265 states and 438 transitions. Word has length 573
[2024-11-03 01:43:05,873 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:43:05,874 INFO  L471      AbstractCegarLoop]: Abstraction has 265 states and 438 transitions.
[2024-11-03 01:43:05,881 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89)
[2024-11-03 01:43:05,882 INFO  L276                IsEmpty]: Start isEmpty. Operand 265 states and 438 transitions.
[2024-11-03 01:43:05,901 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 575
[2024-11-03 01:43:05,901 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:43:05,902 INFO  L215           NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:05,931 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 01:43:06,116 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 01:43:06,117 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:43:06,117 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:43:06,118 INFO  L85        PathProgramCache]: Analyzing trace with hash 462579287, now seen corresponding path program 1 times
[2024-11-03 01:43:06,118 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:43:06,118 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182649513]
[2024-11-03 01:43:06,118 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:43:06,118 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:43:06,118 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:43:06,123 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 01:43:06,125 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 01:43:07,611 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:43:07,694 INFO  L255         TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:43:07,705 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:43:10,500 INFO  L134       CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked.
[2024-11-03 01:43:10,500 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:43:25,949 INFO  L134       CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked.
[2024-11-03 01:43:25,949 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:43:25,949 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182649513]
[2024-11-03 01:43:25,949 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [182649513] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:43:25,949 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:43:25,950 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:43:25,950 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975785731]
[2024-11-03 01:43:25,950 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:43:25,952 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:43:25,952 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:43:25,953 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:43:25,953 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:43:25,953 INFO  L87              Difference]: Start difference. First operand 265 states and 438 transitions. Second operand  has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89)
[2024-11-03 01:43:31,553 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:43:36,856 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:43:36,880 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:43:36,880 INFO  L93              Difference]: Finished difference Result 785 states and 1300 transitions.
[2024-11-03 01:43:37,262 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:43:37,262 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 574
[2024-11-03 01:43:37,264 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:43:37,270 INFO  L225             Difference]: With dead ends: 785
[2024-11-03 01:43:37,270 INFO  L226             Difference]: Without dead ends: 523
[2024-11-03 01:43:37,272 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1146 GetRequests, 1145 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 01:43:37,274 INFO  L432           NwaCegarLoop]: 472 mSDtfsCounter, 392 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time
[2024-11-03 01:43:37,274 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 897 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time]
[2024-11-03 01:43:37,276 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 523 states.
[2024-11-03 01:43:37,319 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 349.
[2024-11-03 01:43:37,320 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 349 states, 258 states have (on average 1.573643410852713) internal successors, (406), 258 states have internal predecessors, (406), 89 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89)
[2024-11-03 01:43:37,322 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 584 transitions.
[2024-11-03 01:43:37,322 INFO  L78                 Accepts]: Start accepts. Automaton has 349 states and 584 transitions. Word has length 574
[2024-11-03 01:43:37,325 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:43:37,325 INFO  L471      AbstractCegarLoop]: Abstraction has 349 states and 584 transitions.
[2024-11-03 01:43:37,325 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89)
[2024-11-03 01:43:37,325 INFO  L276                IsEmpty]: Start isEmpty. Operand 349 states and 584 transitions.
[2024-11-03 01:43:37,333 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 575
[2024-11-03 01:43:37,334 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:43:37,334 INFO  L215           NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:37,349 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 01:43:37,534 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 01:43:37,535 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:43:37,539 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:43:37,539 INFO  L85        PathProgramCache]: Analyzing trace with hash 464426329, now seen corresponding path program 1 times
[2024-11-03 01:43:37,539 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:43:37,539 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [288115668]
[2024-11-03 01:43:37,539 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:43:37,540 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:43:37,540 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:43:37,542 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 01:43:37,543 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 01:43:39,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:43:39,236 INFO  L255         TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:43:39,244 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:43:41,143 INFO  L134       CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked.
[2024-11-03 01:43:41,143 INFO  L311         TraceCheckSpWp]: Computing backward predicates...