/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-28.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:38:43,592 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:38:43,662 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 01:38:43,668 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:38:43,668 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:38:43,699 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:38:43,699 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:38:43,700 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:38:43,700 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:38:43,700 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:38:43,701 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:38:43,702 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:38:43,702 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:38:43,703 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:38:43,704 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:38:43,704 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:38:43,704 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:38:43,705 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:38:43,705 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:38:43,705 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:38:43,705 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:38:43,710 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:38:43,710 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:38:43,711 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:38:43,711 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:38:43,711 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:38:43,711 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:38:43,711 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:38:43,712 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:38:43,712 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:38:43,713 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:38:43,713 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:38:43,713 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:38:43,713 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:38:43,713 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:38:43,713 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:38:43,714 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:38:43,714 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:38:43,714 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:38:43,714 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:38:43,715 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:38:43,715 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:38:43,715 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:38:43,716 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:38:43,716 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:38:43,955 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:38:43,975 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:38:43,978 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:38:43,979 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:38:43,980 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:38:43,981 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-28.i
[2024-11-03 01:38:45,409 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:38:45,729 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:38:45,730 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-28.i
[2024-11-03 01:38:45,750 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac1dd844b/51db2ae9694c493e9ddef1c4c8aa5ba7/FLAGd46f05f8e
[2024-11-03 01:38:45,769 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac1dd844b/51db2ae9694c493e9ddef1c4c8aa5ba7
[2024-11-03 01:38:45,772 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:38:45,773 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:38:45,776 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:38:45,776 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:38:45,782 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:38:45,783 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:38:45" (1/1) ...
[2024-11-03 01:38:45,783 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1278c23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:45, skipping insertion in model container
[2024-11-03 01:38:45,784 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:38:45" (1/1) ...
[2024-11-03 01:38:45,838 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:38:46,030 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-28.i[916,929]
[2024-11-03 01:38:46,277 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:38:46,303 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:38:46,337 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-28.i[916,929]
[2024-11-03 01:38:46,441 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:38:46,470 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:38:46,470 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:46 WrapperNode
[2024-11-03 01:38:46,470 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:38:46,472 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:38:46,472 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:38:46,472 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:38:46,481 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:46" (1/1) ...
[2024-11-03 01:38:46,510 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:46" (1/1) ...
[2024-11-03 01:38:46,579 INFO  L138                Inliner]: procedures = 27, calls = 84, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 586
[2024-11-03 01:38:46,580 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:38:46,581 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:38:46,581 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:38:46,581 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:38:46,592 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:46" (1/1) ...
[2024-11-03 01:38:46,593 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:46" (1/1) ...
[2024-11-03 01:38:46,611 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:46" (1/1) ...
[2024-11-03 01:38:46,652 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 01:38:46,653 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:46" (1/1) ...
[2024-11-03 01:38:46,653 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:46" (1/1) ...
[2024-11-03 01:38:46,697 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:46" (1/1) ...
[2024-11-03 01:38:46,702 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:46" (1/1) ...
[2024-11-03 01:38:46,711 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:46" (1/1) ...
[2024-11-03 01:38:46,718 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:46" (1/1) ...
[2024-11-03 01:38:46,738 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:38:46,742 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:38:46,742 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:38:46,742 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:38:46,743 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:46" (1/1) ...
[2024-11-03 01:38:46,749 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:38:46,760 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:38:46,779 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 01:38:46,782 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 01:38:46,812 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:38:46,812 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:38:46,812 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:38:46,812 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:38:46,812 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:38:46,813 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:38:46,986 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:38:46,988 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:39:37,717 INFO  L?                        ?]: Removed 105 outVars from TransFormulas that were not future-live.
[2024-11-03 01:39:37,718 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:39:37,742 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:39:37,743 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:39:37,743 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:39:37 BoogieIcfgContainer
[2024-11-03 01:39:37,743 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:39:37,745 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:39:37,745 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:39:37,748 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:39:37,749 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:38:45" (1/3) ...
[2024-11-03 01:39:37,749 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a518765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:39:37, skipping insertion in model container
[2024-11-03 01:39:37,750 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:46" (2/3) ...
[2024-11-03 01:39:37,750 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a518765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:39:37, skipping insertion in model container
[2024-11-03 01:39:37,750 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:39:37" (3/3) ...
[2024-11-03 01:39:37,751 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-28.i
[2024-11-03 01:39:37,767 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:39:37,768 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:39:37,853 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:39:37,859 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;@6a55007b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:39:37,860 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:39:37,868 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 241 states, 167 states have (on average 1.5209580838323353) internal successors, (254), 168 states have internal predecessors, (254), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71)
[2024-11-03 01:39:37,908 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 476
[2024-11-03 01:39:37,908 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:39:37,909 INFO  L215           NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:37,910 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:39:37,915 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:39:37,916 INFO  L85        PathProgramCache]: Analyzing trace with hash -1927573443, now seen corresponding path program 1 times
[2024-11-03 01:39:37,924 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:39:37,924 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901465604]
[2024-11-03 01:39:37,925 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:39:37,928 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:39:37,928 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:39:37,931 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 01:39:37,934 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 01:39:39,780 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:39:39,914 INFO  L255         TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:39:39,934 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:39:40,019 INFO  L134       CoverageAnalysis]: Checked inductivity of 9940 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 9800 trivial. 0 not checked.
[2024-11-03 01:39:40,020 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:39:55,326 INFO  L134       CoverageAnalysis]: Checked inductivity of 9940 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 9800 trivial. 0 not checked.
[2024-11-03 01:39:55,327 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:39:55,328 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901465604]
[2024-11-03 01:39:55,328 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [901465604] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:39:55,328 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:39:55,329 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:39:55,332 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008270488]
[2024-11-03 01:39:55,333 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:39:55,339 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:39:55,340 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:39:55,361 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:39:55,362 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:39:55,364 INFO  L87              Difference]: Start difference. First operand  has 241 states, 167 states have (on average 1.5209580838323353) internal successors, (254), 168 states have internal predecessors, (254), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) Second operand  has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 1 states have call successors, (71), 1 states have call predecessors, (71), 2 states have return successors, (71), 2 states have call predecessors, (71), 1 states have call successors, (71)
[2024-11-03 01:39:55,413 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:39:55,413 INFO  L93              Difference]: Finished difference Result 474 states and 855 transitions.
[2024-11-03 01:39:55,414 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:39:55,416 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 1 states have call successors, (71), 1 states have call predecessors, (71), 2 states have return successors, (71), 2 states have call predecessors, (71), 1 states have call successors, (71) Word has length 475
[2024-11-03 01:39:55,416 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:39:55,425 INFO  L225             Difference]: With dead ends: 474
[2024-11-03 01:39:55,425 INFO  L226             Difference]: Without dead ends: 236
[2024-11-03 01:39:55,431 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 948 GetRequests, 948 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 01:39:55,436 INFO  L432           NwaCegarLoop]: 386 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, 386 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 01:39:55,437 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:39:55,453 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 236 states.
[2024-11-03 01:39:55,502 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236.
[2024-11-03 01:39:55,504 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 236 states, 163 states have (on average 1.4969325153374233) internal successors, (244), 163 states have internal predecessors, (244), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71)
[2024-11-03 01:39:55,509 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 386 transitions.
[2024-11-03 01:39:55,515 INFO  L78                 Accepts]: Start accepts. Automaton has 236 states and 386 transitions. Word has length 475
[2024-11-03 01:39:55,516 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:39:55,519 INFO  L471      AbstractCegarLoop]: Abstraction has 236 states and 386 transitions.
[2024-11-03 01:39:55,519 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 1 states have call successors, (71), 1 states have call predecessors, (71), 2 states have return successors, (71), 2 states have call predecessors, (71), 1 states have call successors, (71)
[2024-11-03 01:39:55,519 INFO  L276                IsEmpty]: Start isEmpty. Operand 236 states and 386 transitions.
[2024-11-03 01:39:55,532 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 476
[2024-11-03 01:39:55,533 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:39:55,534 INFO  L215           NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:55,555 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 01:39:55,735 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 01:39:55,735 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:39:55,736 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:39:55,736 INFO  L85        PathProgramCache]: Analyzing trace with hash -1931702221, now seen corresponding path program 1 times
[2024-11-03 01:39:55,736 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:39:55,737 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310667117]
[2024-11-03 01:39:55,737 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:39:55,737 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:39:55,737 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:39:55,740 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 01:39:55,741 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 01:39:57,517 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:39:57,638 INFO  L255         TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:39:57,647 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:39:58,204 INFO  L134       CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked.
[2024-11-03 01:39:58,204 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:40:13,873 INFO  L134       CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked.
[2024-11-03 01:40:13,873 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:40:13,874 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310667117]
[2024-11-03 01:40:13,874 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [310667117] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:40:13,874 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:40:13,874 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:40:13,874 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914723208]
[2024-11-03 01:40:13,875 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:40:13,876 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:40:13,877 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:40:13,878 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:40:13,878 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:40:13,878 INFO  L87              Difference]: Start difference. First operand 236 states and 386 transitions. Second operand  has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71)
[2024-11-03 01:40:19,865 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:40:23,870 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:40:24,556 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:40:24,556 INFO  L93              Difference]: Finished difference Result 578 states and 950 transitions.
[2024-11-03 01:40:24,558 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:40:24,559 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 475
[2024-11-03 01:40:24,561 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:40:24,564 INFO  L225             Difference]: With dead ends: 578
[2024-11-03 01:40:24,565 INFO  L226             Difference]: Without dead ends: 345
[2024-11-03 01:40:24,568 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 948 GetRequests, 947 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:40:24,569 INFO  L432           NwaCegarLoop]: 553 mSDtfsCounter, 176 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time
[2024-11-03 01:40:24,570 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 929 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time]
[2024-11-03 01:40:24,571 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 345 states.
[2024-11-03 01:40:24,606 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 239.
[2024-11-03 01:40:24,611 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 239 states, 166 states have (on average 1.4939759036144578) internal successors, (248), 166 states have internal predecessors, (248), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71)
[2024-11-03 01:40:24,613 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 390 transitions.
[2024-11-03 01:40:24,614 INFO  L78                 Accepts]: Start accepts. Automaton has 239 states and 390 transitions. Word has length 475
[2024-11-03 01:40:24,620 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:40:24,620 INFO  L471      AbstractCegarLoop]: Abstraction has 239 states and 390 transitions.
[2024-11-03 01:40:24,621 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71)
[2024-11-03 01:40:24,621 INFO  L276                IsEmpty]: Start isEmpty. Operand 239 states and 390 transitions.
[2024-11-03 01:40:24,631 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 477
[2024-11-03 01:40:24,631 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:40:24,631 INFO  L215           NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:24,651 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0
[2024-11-03 01:40:24,832 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 01:40:24,833 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:40:24,833 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:40:24,834 INFO  L85        PathProgramCache]: Analyzing trace with hash -491757300, now seen corresponding path program 1 times
[2024-11-03 01:40:24,834 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:40:24,834 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141383970]
[2024-11-03 01:40:24,834 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:40:24,835 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:40:24,835 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:40:24,837 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 01:40:24,839 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 01:40:26,678 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:40:26,811 INFO  L255         TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:40:26,821 INFO  L278         TraceCheckSpWp]: Computing forward predicates...