/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_amount100_file-89.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:04:33,394 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:04:33,482 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 01:04:33,491 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:04:33,491 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:04:33,520 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:04:33,520 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:04:33,521 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:04:33,522 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:04:33,523 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:04:33,523 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:04:33,524 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:04:33,526 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:04:33,527 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:04:33,527 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:04:33,527 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:04:33,528 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:04:33,528 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:04:33,528 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:04:33,528 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:04:33,528 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:04:33,530 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:04:33,530 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:04:33,530 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:04:33,530 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:04:33,531 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:04:33,531 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:04:33,531 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:04:33,531 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:04:33,531 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:04:33,532 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:04:33,532 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:04:33,532 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:04:33,532 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:04:33,533 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:04:33,533 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:04:33,533 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:04:33,534 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:04:33,534 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:04:33,534 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:04:33,535 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:04:33,535 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:04:33,535 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:04:33,535 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:04:33,535 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:04:33,786 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:04:33,808 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:04:33,811 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:04:33,812 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:04:33,812 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:04:33,814 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-89.i
[2024-11-03 01:04:35,257 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:04:35,473 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:04:35,473 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-89.i
[2024-11-03 01:04:35,484 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bae04598/e17124824d6543c7a0eab826aefc6d01/FLAG9e06fcb42
[2024-11-03 01:04:35,837 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bae04598/e17124824d6543c7a0eab826aefc6d01
[2024-11-03 01:04:35,842 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:04:35,843 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:04:35,844 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:04:35,844 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:04:35,850 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:04:35,850 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:04:35" (1/1) ...
[2024-11-03 01:04:35,851 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29a85f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:04:35, skipping insertion in model container
[2024-11-03 01:04:35,852 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:04:35" (1/1) ...
[2024-11-03 01:04:35,887 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:04:36,061 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_amount100_file-89.i[916,929]
[2024-11-03 01:04:36,145 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:04:36,161 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:04:36,172 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_amount100_file-89.i[916,929]
[2024-11-03 01:04:36,218 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:04:36,242 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:04:36,242 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:04:36 WrapperNode
[2024-11-03 01:04:36,243 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:04:36,244 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:04:36,244 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:04:36,244 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:04:36,249 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:04:36" (1/1) ...
[2024-11-03 01:04:36,262 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:04:36" (1/1) ...
[2024-11-03 01:04:36,304 INFO  L138                Inliner]: procedures = 27, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 227
[2024-11-03 01:04:36,304 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:04:36,305 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:04:36,305 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:04:36,305 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:04:36,317 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:04:36" (1/1) ...
[2024-11-03 01:04:36,317 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:04:36" (1/1) ...
[2024-11-03 01:04:36,324 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:04:36" (1/1) ...
[2024-11-03 01:04:36,347 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 01:04:36,348 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:04:36" (1/1) ...
[2024-11-03 01:04:36,348 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:04:36" (1/1) ...
[2024-11-03 01:04:36,360 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:04:36" (1/1) ...
[2024-11-03 01:04:36,368 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:04:36" (1/1) ...
[2024-11-03 01:04:36,374 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:04:36" (1/1) ...
[2024-11-03 01:04:36,379 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:04:36" (1/1) ...
[2024-11-03 01:04:36,390 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:04:36,391 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:04:36,391 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:04:36,391 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:04:36,392 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:04:36" (1/1) ...
[2024-11-03 01:04:36,397 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:04:36,408 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:04:36,424 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 01:04:36,428 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 01:04:36,456 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:04:36,457 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:04:36,457 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:04:36,458 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:04:36,458 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:04:36,459 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:04:36,603 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:04:36,606 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:04:49,381 INFO  L?                        ?]: Removed 26 outVars from TransFormulas that were not future-live.
[2024-11-03 01:04:49,381 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:04:49,399 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:04:49,399 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:04:49,399 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:04:49 BoogieIcfgContainer
[2024-11-03 01:04:49,399 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:04:49,403 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:04:49,403 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:04:49,406 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:04:49,406 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:04:35" (1/3) ...
[2024-11-03 01:04:49,407 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1de513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:04:49, skipping insertion in model container
[2024-11-03 01:04:49,407 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:04:36" (2/3) ...
[2024-11-03 01:04:49,407 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1de513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:04:49, skipping insertion in model container
[2024-11-03 01:04:49,407 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:04:49" (3/3) ...
[2024-11-03 01:04:49,409 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-89.i
[2024-11-03 01:04:49,423 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:04:49,424 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:04:49,485 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:04:49,490 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;@fa7a417, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:04:49,490 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:04:49,494 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 102 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 62 states have internal predecessors, (84), 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 01:04:49,510 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 237
[2024-11-03 01:04:49,511 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:04:49,511 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]
[2024-11-03 01:04:49,512 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:04:49,516 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:04:49,516 INFO  L85        PathProgramCache]: Analyzing trace with hash -725139243, now seen corresponding path program 1 times
[2024-11-03 01:04:49,523 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:04:49,524 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980722590]
[2024-11-03 01:04:49,524 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:04:49,526 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:04:49,526 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:04:49,528 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 01:04:49,530 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 01:04:49,939 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:04:49,957 INFO  L255         TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:04:49,969 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:04:50,023 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 01:04:50,024 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:04:51,956 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 01:04:51,957 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:04:51,957 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980722590]
[2024-11-03 01:04:51,957 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1980722590] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:04:51,957 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:04:51,958 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:04:51,959 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566289462]
[2024-11-03 01:04:51,960 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:04:51,968 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:04:51,968 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:04:51,987 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:04:51,988 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:04:51,990 INFO  L87              Difference]: Start difference. First operand  has 102 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 62 states have internal predecessors, (84), 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 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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 01:04:52,022 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:04:52,022 INFO  L93              Difference]: Finished difference Result 197 states and 352 transitions.
[2024-11-03 01:04:52,023 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:04:52,024 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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 236
[2024-11-03 01:04:52,024 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:04:52,032 INFO  L225             Difference]: With dead ends: 197
[2024-11-03 01:04:52,032 INFO  L226             Difference]: Without dead ends: 98
[2024-11-03 01:04:52,036 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 470 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 01:04:52,039 INFO  L432           NwaCegarLoop]: 153 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, 153 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 01:04:52,039 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:04:52,053 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2024-11-03 01:04:52,079 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98.
[2024-11-03 01:04:52,081 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 98 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 58 states have internal predecessors, (77), 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 01:04:52,085 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 153 transitions.
[2024-11-03 01:04:52,088 INFO  L78                 Accepts]: Start accepts. Automaton has 98 states and 153 transitions. Word has length 236
[2024-11-03 01:04:52,089 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:04:52,089 INFO  L471      AbstractCegarLoop]: Abstraction has 98 states and 153 transitions.
[2024-11-03 01:04:52,089 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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 01:04:52,090 INFO  L276                IsEmpty]: Start isEmpty. Operand 98 states and 153 transitions.
[2024-11-03 01:04:52,094 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 237
[2024-11-03 01:04:52,095 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:04:52,095 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]
[2024-11-03 01:04:52,100 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 01:04:52,296 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 01:04:52,296 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:04:52,297 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:04:52,297 INFO  L85        PathProgramCache]: Analyzing trace with hash 177657809, now seen corresponding path program 1 times
[2024-11-03 01:04:52,298 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:04:52,298 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662826274]
[2024-11-03 01:04:52,298 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:04:52,298 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:04:52,299 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:04:52,301 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 01:04:52,303 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 01:04:52,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:04:52,748 INFO  L255         TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:04:52,756 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:04:53,040 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 01:04:53,040 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:04:55,160 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 01:04:55,161 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:04:55,161 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662826274]
[2024-11-03 01:04:55,161 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [662826274] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:04:55,161 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:04:55,161 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:04:55,162 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50892244]
[2024-11-03 01:04:55,162 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:04:55,163 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:04:55,164 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:04:55,164 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:04:55,165 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:04:55,165 INFO  L87              Difference]: Start difference. First operand 98 states and 153 transitions. Second operand  has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 01:04:59,833 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:05:03,840 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:05:04,173 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:05:04,173 INFO  L93              Difference]: Finished difference Result 285 states and 447 transitions.
[2024-11-03 01:05:04,180 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:05:04,181 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 236
[2024-11-03 01:05:04,182 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:05:04,185 INFO  L225             Difference]: With dead ends: 285
[2024-11-03 01:05:04,186 INFO  L226             Difference]: Without dead ends: 190
[2024-11-03 01:05:04,187 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:05:04,188 INFO  L432           NwaCegarLoop]: 252 mSDtfsCounter, 138 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time
[2024-11-03 01:05:04,188 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 390 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time]
[2024-11-03 01:05:04,189 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 190 states.
[2024-11-03 01:05:04,211 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 110.
[2024-11-03 01:05:04,213 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 110 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 70 states have internal predecessors, (96), 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 01:05:04,216 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 172 transitions.
[2024-11-03 01:05:04,217 INFO  L78                 Accepts]: Start accepts. Automaton has 110 states and 172 transitions. Word has length 236
[2024-11-03 01:05:04,221 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:05:04,221 INFO  L471      AbstractCegarLoop]: Abstraction has 110 states and 172 transitions.
[2024-11-03 01:05:04,221 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 01:05:04,221 INFO  L276                IsEmpty]: Start isEmpty. Operand 110 states and 172 transitions.
[2024-11-03 01:05:04,228 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 237
[2024-11-03 01:05:04,229 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:05:04,229 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]
[2024-11-03 01:05:04,238 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 01:05:04,429 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 01:05:04,430 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:05:04,430 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:05:04,431 INFO  L85        PathProgramCache]: Analyzing trace with hash 435823247, now seen corresponding path program 1 times
[2024-11-03 01:05:04,431 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:05:04,431 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991645410]
[2024-11-03 01:05:04,431 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:05:04,431 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:05:04,431 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:05:04,434 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 01:05:04,436 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 01:05:04,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:05:04,839 INFO  L255         TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 01:05:04,844 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:05:06,364 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 01:05:06,364 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:05:09,103 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 01:05:09,103 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:05:09,103 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991645410]
[2024-11-03 01:05:09,104 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1991645410] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:05:09,104 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:05:09,104 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7
[2024-11-03 01:05:09,104 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713967837]
[2024-11-03 01:05:09,104 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:05:09,105 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-03 01:05:09,105 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:05:09,106 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-03 01:05:09,106 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-03 01:05:09,106 INFO  L87              Difference]: Start difference. First operand 110 states and 172 transitions. Second operand  has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 01:05:16,170 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:05:20,176 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:05:24,188 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:05:28,196 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:05:32,204 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:05:36,659 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:05:36,660 INFO  L93              Difference]: Finished difference Result 405 states and 622 transitions.
[2024-11-03 01:05:36,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-03 01:05:36,668 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 236
[2024-11-03 01:05:36,669 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:05:36,675 INFO  L225             Difference]: With dead ends: 405
[2024-11-03 01:05:36,675 INFO  L226             Difference]: Without dead ends: 290
[2024-11-03 01:05:36,676 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110
[2024-11-03 01:05:36,677 INFO  L432           NwaCegarLoop]: 407 mSDtfsCounter, 373 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 275 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.8s IncrementalHoareTripleChecker+Time
[2024-11-03 01:05:36,678 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 575 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 303 Invalid, 5 Unknown, 0 Unchecked, 26.8s Time]
[2024-11-03 01:05:36,679 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 290 states.
[2024-11-03 01:05:36,715 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 114.
[2024-11-03 01:05:36,715 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 114 states, 73 states have (on average 1.2876712328767124) internal successors, (94), 73 states have internal predecessors, (94), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-03 01:05:36,717 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 170 transitions.
[2024-11-03 01:05:36,718 INFO  L78                 Accepts]: Start accepts. Automaton has 114 states and 170 transitions. Word has length 236
[2024-11-03 01:05:36,719 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:05:36,719 INFO  L471      AbstractCegarLoop]: Abstraction has 114 states and 170 transitions.
[2024-11-03 01:05:36,719 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 01:05:36,719 INFO  L276                IsEmpty]: Start isEmpty. Operand 114 states and 170 transitions.
[2024-11-03 01:05:36,722 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 237
[2024-11-03 01:05:36,722 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:05:36,723 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]
[2024-11-03 01:05:36,729 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 01:05:36,923 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 01:05:36,924 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:05:36,924 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:05:36,925 INFO  L85        PathProgramCache]: Analyzing trace with hash -639990641, now seen corresponding path program 1 times
[2024-11-03 01:05:36,925 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:05:36,925 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921414595]
[2024-11-03 01:05:36,925 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:05:36,925 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:05:36,926 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:05:36,927 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 01:05:36,928 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 01:05:37,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:05:37,326 INFO  L255         TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 01:05:37,333 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:05:43,384 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 01:05:43,385 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:05:47,341 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 01:05:47,341 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:05:47,341 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921414595]
[2024-11-03 01:05:47,341 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1921414595] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:05:47,341 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:05:47,341 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-03 01:05:47,342 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912123562]
[2024-11-03 01:05:47,342 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:05:47,342 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 01:05:47,342 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:05:47,345 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 01:05:47,345 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2024-11-03 01:05:47,346 INFO  L87              Difference]: Start difference. First operand 114 states and 170 transitions. Second operand  has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76)
[2024-11-03 01:05:54,799 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:05:58,813 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:06:02,821 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:06:06,826 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:06:08,694 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:06:08,695 INFO  L93              Difference]: Finished difference Result 408 states and 614 transitions.
[2024-11-03 01:06:08,696 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 01:06:08,696 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 236
[2024-11-03 01:06:08,697 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:06:08,700 INFO  L225             Difference]: With dead ends: 408
[2024-11-03 01:06:08,700 INFO  L226             Difference]: Without dead ends: 297
[2024-11-03 01:06:08,701 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90
[2024-11-03 01:06:08,701 INFO  L432           NwaCegarLoop]: 249 mSDtfsCounter, 175 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 77 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time
[2024-11-03 01:06:08,702 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 810 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 310 Invalid, 4 Unknown, 0 Unchecked, 21.0s Time]
[2024-11-03 01:06:08,703 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 297 states.
[2024-11-03 01:06:08,740 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 219.
[2024-11-03 01:06:08,741 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 219 states, 138 states have (on average 1.2681159420289856) internal successors, (175), 138 states have internal predecessors, (175), 76 states have call successors, (76), 4 states have call predecessors, (76), 4 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76)
[2024-11-03 01:06:08,742 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 327 transitions.
[2024-11-03 01:06:08,743 INFO  L78                 Accepts]: Start accepts. Automaton has 219 states and 327 transitions. Word has length 236
[2024-11-03 01:06:08,744 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:06:08,744 INFO  L471      AbstractCegarLoop]: Abstraction has 219 states and 327 transitions.
[2024-11-03 01:06:08,744 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76)
[2024-11-03 01:06:08,744 INFO  L276                IsEmpty]: Start isEmpty. Operand 219 states and 327 transitions.
[2024-11-03 01:06:08,747 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 238
[2024-11-03 01:06:08,747 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:06:08,747 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]
[2024-11-03 01:06:08,754 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0
[2024-11-03 01:06:08,948 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 01:06:08,948 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:06:08,949 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:06:08,949 INFO  L85        PathProgramCache]: Analyzing trace with hash 265919408, now seen corresponding path program 1 times
[2024-11-03 01:06:08,949 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:06:08,949 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921669737]
[2024-11-03 01:06:08,949 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:06:08,949 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:06:08,949 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:06:08,950 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 01:06:08,952 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 01:06:10,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:06:10,681 INFO  L255         TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 01:06:10,684 INFO  L278         TraceCheckSpWp]: Computing forward predicates...