/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_amount250_file-45.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:16:16,621 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:16:16,687 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 01:16:16,695 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:16:16,696 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:16:16,720 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:16:16,721 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:16:16,721 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:16:16,721 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:16:16,722 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:16:16,722 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:16:16,722 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:16:16,723 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:16:16,723 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:16:16,723 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:16:16,724 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:16:16,724 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:16:16,724 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:16:16,725 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:16:16,725 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:16:16,725 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:16:16,729 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:16:16,729 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:16:16,729 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:16:16,729 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:16:16,730 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:16:16,730 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:16:16,730 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:16:16,730 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:16:16,731 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:16:16,731 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:16:16,731 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:16:16,731 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:16:16,732 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:16:16,732 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:16:16,734 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:16:16,735 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:16:16,735 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:16:16,735 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:16:16,735 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:16:16,735 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:16:16,736 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:16:16,736 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:16:16,736 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:16:16,736 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:16:16,963 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:16:16,987 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:16:16,993 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:16:16,995 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:16:16,995 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:16:16,996 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-45.i
[2024-11-03 01:16:18,449 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:16:18,694 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:16:18,694 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-45.i
[2024-11-03 01:16:18,704 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6eb5a5d4a/c20408a7777e4b8ba240940f38de0485/FLAG9afb9e9b1
[2024-11-03 01:16:19,029 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6eb5a5d4a/c20408a7777e4b8ba240940f38de0485
[2024-11-03 01:16:19,031 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:16:19,032 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:16:19,034 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:16:19,034 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:16:19,039 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:16:19,039 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:16:19" (1/1) ...
[2024-11-03 01:16:19,040 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@138038f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:19, skipping insertion in model container
[2024-11-03 01:16:19,040 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:16:19" (1/1) ...
[2024-11-03 01:16:19,086 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:16:19,258 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-45.i[916,929]
[2024-11-03 01:16:19,404 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:16:19,421 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:16:19,433 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-45.i[916,929]
[2024-11-03 01:16:19,506 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:16:19,527 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:16:19,528 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:19 WrapperNode
[2024-11-03 01:16:19,528 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:16:19,529 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:16:19,529 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:16:19,529 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:16:19,535 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:19" (1/1) ...
[2024-11-03 01:16:19,552 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:19" (1/1) ...
[2024-11-03 01:16:19,586 INFO  L138                Inliner]: procedures = 27, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 329
[2024-11-03 01:16:19,586 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:16:19,587 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:16:19,587 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:16:19,587 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:16:19,598 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:19" (1/1) ...
[2024-11-03 01:16:19,598 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:19" (1/1) ...
[2024-11-03 01:16:19,604 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:19" (1/1) ...
[2024-11-03 01:16:19,626 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 01:16:19,626 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:19" (1/1) ...
[2024-11-03 01:16:19,626 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:19" (1/1) ...
[2024-11-03 01:16:19,651 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:19" (1/1) ...
[2024-11-03 01:16:19,658 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:19" (1/1) ...
[2024-11-03 01:16:19,667 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:19" (1/1) ...
[2024-11-03 01:16:19,675 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:19" (1/1) ...
[2024-11-03 01:16:19,683 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:16:19,684 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:16:19,684 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:16:19,685 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:16:19,685 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:19" (1/1) ...
[2024-11-03 01:16:19,691 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:16:19,701 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:16:19,720 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 01:16:19,723 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 01:16:19,752 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:16:19,752 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:16:19,752 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:16:19,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:16:19,752 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:16:19,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:16:19,900 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:16:19,902 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:16:36,736 INFO  L?                        ?]: Removed 53 outVars from TransFormulas that were not future-live.
[2024-11-03 01:16:36,736 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:16:36,754 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:16:36,754 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:16:36,755 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:16:36 BoogieIcfgContainer
[2024-11-03 01:16:36,755 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:16:36,759 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:16:36,759 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:16:36,762 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:16:36,762 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:16:19" (1/3) ...
[2024-11-03 01:16:36,763 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f298f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:16:36, skipping insertion in model container
[2024-11-03 01:16:36,763 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:16:19" (2/3) ...
[2024-11-03 01:16:36,764 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f298f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:16:36, skipping insertion in model container
[2024-11-03 01:16:36,764 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:16:36" (3/3) ...
[2024-11-03 01:16:36,765 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-45.i
[2024-11-03 01:16:36,780 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:16:36,780 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:16:36,835 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:16:36,841 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;@462d6ab2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:16:36,841 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:16:36,848 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 133 states, 92 states have (on average 1.5) internal successors, (138), 93 states have internal predecessors, (138), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-03 01:16:36,869 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 258
[2024-11-03 01:16:36,870 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:16:36,871 INFO  L215           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:16:36,872 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:16:36,878 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:16:36,878 INFO  L85        PathProgramCache]: Analyzing trace with hash 1464402501, now seen corresponding path program 1 times
[2024-11-03 01:16:36,889 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:16:36,889 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277107456]
[2024-11-03 01:16:36,890 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:16:36,892 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:16:36,892 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:16:36,896 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 01:16:36,897 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 01:16:37,727 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:16:37,751 INFO  L255         TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:16:37,763 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:16:37,838 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked.
[2024-11-03 01:16:37,839 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:16:40,878 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked.
[2024-11-03 01:16:40,879 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:16:40,881 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1277107456]
[2024-11-03 01:16:40,882 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1277107456] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:16:40,883 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:16:40,883 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:16:40,885 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231004410]
[2024-11-03 01:16:40,885 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:16:40,891 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:16:40,891 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:16:40,910 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:16:40,911 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:16:40,914 INFO  L87              Difference]: Start difference. First operand  has 133 states, 92 states have (on average 1.5) internal successors, (138), 93 states have internal predecessors, (138), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand  has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 1 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38)
[2024-11-03 01:16:40,947 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:16:40,948 INFO  L93              Difference]: Finished difference Result 258 states and 458 transitions.
[2024-11-03 01:16:40,948 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:16:40,950 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 1 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) Word has length 257
[2024-11-03 01:16:40,950 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:16:40,956 INFO  L225             Difference]: With dead ends: 258
[2024-11-03 01:16:40,957 INFO  L226             Difference]: Without dead ends: 128
[2024-11-03 01:16:40,960 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 512 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 01:16:40,963 INFO  L432           NwaCegarLoop]: 204 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, 204 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 01:16:40,964 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:16:40,976 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 128 states.
[2024-11-03 01:16:41,006 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128.
[2024-11-03 01:16:41,008 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 128 states, 88 states have (on average 1.4545454545454546) internal successors, (128), 88 states have internal predecessors, (128), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-03 01:16:41,011 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 204 transitions.
[2024-11-03 01:16:41,013 INFO  L78                 Accepts]: Start accepts. Automaton has 128 states and 204 transitions. Word has length 257
[2024-11-03 01:16:41,013 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:16:41,013 INFO  L471      AbstractCegarLoop]: Abstraction has 128 states and 204 transitions.
[2024-11-03 01:16:41,014 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 1 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38)
[2024-11-03 01:16:41,014 INFO  L276                IsEmpty]: Start isEmpty. Operand 128 states and 204 transitions.
[2024-11-03 01:16:41,019 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 258
[2024-11-03 01:16:41,019 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:16:41,020 INFO  L215           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:16:41,030 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 01:16:41,221 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 01:16:41,221 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:16:41,222 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:16:41,222 INFO  L85        PathProgramCache]: Analyzing trace with hash -1271422783, now seen corresponding path program 1 times
[2024-11-03 01:16:41,223 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:16:41,223 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1616900015]
[2024-11-03 01:16:41,223 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:16:41,223 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:16:41,223 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:16:41,226 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 01:16:41,227 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 01:16:42,025 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:16:42,048 INFO  L255         TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:16:42,073 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:16:42,366 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked.
[2024-11-03 01:16:42,366 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:16:45,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked.
[2024-11-03 01:16:45,613 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:16:45,613 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1616900015]
[2024-11-03 01:16:45,613 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1616900015] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:16:45,613 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:16:45,613 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:16:45,614 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369497746]
[2024-11-03 01:16:45,614 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:16:45,615 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:16:45,616 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:16:45,616 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:16:45,617 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:16:45,617 INFO  L87              Difference]: Start difference. First operand 128 states and 204 transitions. Second operand  has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38)
[2024-11-03 01:16:50,377 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:16:54,382 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 01:16:54,659 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:16:54,659 INFO  L93              Difference]: Finished difference Result 372 states and 595 transitions.
[2024-11-03 01:16:54,662 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:16:54,662 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 257
[2024-11-03 01:16:54,663 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:16:54,669 INFO  L225             Difference]: With dead ends: 372
[2024-11-03 01:16:54,669 INFO  L226             Difference]: Without dead ends: 247
[2024-11-03 01:16:54,670 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 511 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 01:16:54,671 INFO  L432           NwaCegarLoop]: 383 mSDtfsCounter, 182 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time
[2024-11-03 01:16:54,672 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 575 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time]
[2024-11-03 01:16:54,673 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 247 states.
[2024-11-03 01:16:54,707 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 152.
[2024-11-03 01:16:54,710 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 152 states, 112 states have (on average 1.4821428571428572) internal successors, (166), 112 states have internal predecessors, (166), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-03 01:16:54,711 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 242 transitions.
[2024-11-03 01:16:54,712 INFO  L78                 Accepts]: Start accepts. Automaton has 152 states and 242 transitions. Word has length 257
[2024-11-03 01:16:54,718 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:16:54,718 INFO  L471      AbstractCegarLoop]: Abstraction has 152 states and 242 transitions.
[2024-11-03 01:16:54,718 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38)
[2024-11-03 01:16:54,719 INFO  L276                IsEmpty]: Start isEmpty. Operand 152 states and 242 transitions.
[2024-11-03 01:16:54,724 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 258
[2024-11-03 01:16:54,724 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:16:54,724 INFO  L215           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:16:54,736 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 01:16:54,925 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 01:16:54,926 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:16:54,926 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:16:54,926 INFO  L85        PathProgramCache]: Analyzing trace with hash -1130874173, now seen corresponding path program 1 times
[2024-11-03 01:16:54,927 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:16:54,927 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140047976]
[2024-11-03 01:16:54,927 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:16:54,927 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:16:54,927 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:16:54,929 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 01:16:54,929 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 01:16:55,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:16:55,680 INFO  L255         TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:16:55,687 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:16:56,670 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked.
[2024-11-03 01:16:56,670 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:17:00,549 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked.
[2024-11-03 01:17:00,549 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:17:00,549 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140047976]
[2024-11-03 01:17:00,549 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1140047976] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:17:00,550 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:17:00,550 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:17:00,550 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038566882]
[2024-11-03 01:17:00,550 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:17:00,551 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:17:00,551 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:17:00,552 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:17:00,552 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:17:00,552 INFO  L87              Difference]: Start difference. First operand 152 states and 242 transitions. Second operand  has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38)
[2024-11-03 01:17:05,389 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:17:09,401 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:17:09,608 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:17:09,608 INFO  L93              Difference]: Finished difference Result 440 states and 703 transitions.
[2024-11-03 01:17:09,609 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:17:09,609 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 257
[2024-11-03 01:17:09,610 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:17:09,613 INFO  L225             Difference]: With dead ends: 440
[2024-11-03 01:17:09,613 INFO  L226             Difference]: Without dead ends: 291
[2024-11-03 01:17:09,614 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 511 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 01:17:09,615 INFO  L432           NwaCegarLoop]: 218 mSDtfsCounter, 163 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time
[2024-11-03 01:17:09,615 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 401 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time]
[2024-11-03 01:17:09,616 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 291 states.
[2024-11-03 01:17:09,632 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 197.
[2024-11-03 01:17:09,633 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 197 states, 157 states have (on average 1.5031847133757963) internal successors, (236), 157 states have internal predecessors, (236), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-03 01:17:09,634 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 312 transitions.
[2024-11-03 01:17:09,635 INFO  L78                 Accepts]: Start accepts. Automaton has 197 states and 312 transitions. Word has length 257
[2024-11-03 01:17:09,636 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:17:09,636 INFO  L471      AbstractCegarLoop]: Abstraction has 197 states and 312 transitions.
[2024-11-03 01:17:09,636 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38)
[2024-11-03 01:17:09,636 INFO  L276                IsEmpty]: Start isEmpty. Operand 197 states and 312 transitions.
[2024-11-03 01:17:09,639 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 258
[2024-11-03 01:17:09,639 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:17:09,640 INFO  L215           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:09,650 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0
[2024-11-03 01:17:09,840 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:17:09,841 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:17:09,841 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:17:09,842 INFO  L85        PathProgramCache]: Analyzing trace with hash -1108241919, now seen corresponding path program 1 times
[2024-11-03 01:17:09,842 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:17:09,842 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780060719]
[2024-11-03 01:17:09,842 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:17:09,842 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:17:09,842 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:17:09,845 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:17:09,846 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 01:17:12,727 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:17:12,760 INFO  L255         TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:17:12,765 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:17:23,755 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked.
[2024-11-03 01:17:23,755 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:17:30,755 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked.
[2024-11-03 01:17:30,755 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:17:30,755 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780060719]
[2024-11-03 01:17:30,756 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1780060719] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:17:30,756 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:17:30,756 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3
[2024-11-03 01:17:30,756 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874726067]
[2024-11-03 01:17:30,756 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:17:30,757 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:17:30,758 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:17:30,759 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:17:30,759 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:17:30,759 INFO  L87              Difference]: Start difference. First operand 197 states and 312 transitions. Second operand  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76)
[2024-11-03 01:17:35,520 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:17:40,178 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:17:40,187 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:17:40,188 INFO  L93              Difference]: Finished difference Result 585 states and 930 transitions.
[2024-11-03 01:17:40,394 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:17:40,394 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 257
[2024-11-03 01:17:40,395 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:17:40,398 INFO  L225             Difference]: With dead ends: 585
[2024-11-03 01:17:40,398 INFO  L226             Difference]: Without dead ends: 391
[2024-11-03 01:17:40,399 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 510 SyntacticMatches, 1 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 01:17:40,400 INFO  L432           NwaCegarLoop]: 200 mSDtfsCounter, 75 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time
[2024-11-03 01:17:40,401 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 393 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time]
[2024-11-03 01:17:40,402 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 391 states.
[2024-11-03 01:17:40,431 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 388.
[2024-11-03 01:17:40,432 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 388 states, 309 states have (on average 1.5016181229773462) internal successors, (464), 309 states have internal predecessors, (464), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76)
[2024-11-03 01:17:40,434 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 616 transitions.
[2024-11-03 01:17:40,434 INFO  L78                 Accepts]: Start accepts. Automaton has 388 states and 616 transitions. Word has length 257
[2024-11-03 01:17:40,435 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:17:40,435 INFO  L471      AbstractCegarLoop]: Abstraction has 388 states and 616 transitions.
[2024-11-03 01:17:40,435 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76)
[2024-11-03 01:17:40,436 INFO  L276                IsEmpty]: Start isEmpty. Operand 388 states and 616 transitions.
[2024-11-03 01:17:40,437 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 259
[2024-11-03 01:17:40,437 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:17:40,438 INFO  L215           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:40,476 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0
[2024-11-03 01:17:40,638 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:17:40,639 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:17:40,639 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:17:40,639 INFO  L85        PathProgramCache]: Analyzing trace with hash -5443314, now seen corresponding path program 1 times
[2024-11-03 01:17:40,640 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:17:40,640 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420510170]
[2024-11-03 01:17:40,640 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:17:40,640 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:17:40,640 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:17:40,641 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:17:40,642 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2024-11-03 01:17:43,518 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:17:43,580 INFO  L255         TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 01:17:43,585 INFO  L278         TraceCheckSpWp]: Computing forward predicates...