/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-76.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:20:26,977 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:20:27,034 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 01:20:27,039 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:20:27,039 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:20:27,060 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:20:27,060 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:20:27,061 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:20:27,061 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:20:27,061 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:20:27,062 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:20:27,062 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:20:27,063 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:20:27,063 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:20:27,064 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:20:27,064 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:20:27,064 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:20:27,064 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:20:27,065 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:20:27,065 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:20:27,065 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:20:27,068 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:20:27,068 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:20:27,068 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:20:27,068 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:20:27,069 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:20:27,069 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:20:27,069 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:20:27,069 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:20:27,069 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:20:27,069 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:20:27,069 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:20:27,070 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:20:27,070 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:20:27,070 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:20:27,070 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:20:27,070 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:20:27,070 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:20:27,071 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:20:27,071 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:20:27,071 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:20:27,072 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:20:27,072 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:20:27,072 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:20:27,072 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:20:27,260 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:20:27,278 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:20:27,280 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:20:27,281 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:20:27,281 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:20:27,282 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-76.i
[2024-11-03 01:20:28,585 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:20:28,768 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:20:28,772 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-76.i
[2024-11-03 01:20:28,785 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c73dcd0b/38cd4e81d7ef488f875bf9074d5e807d/FLAG19463c980
[2024-11-03 01:20:29,134 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c73dcd0b/38cd4e81d7ef488f875bf9074d5e807d
[2024-11-03 01:20:29,135 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:20:29,136 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:20:29,137 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:20:29,137 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:20:29,141 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:20:29,141 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:20:29" (1/1) ...
[2024-11-03 01:20:29,142 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29fa6d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:20:29, skipping insertion in model container
[2024-11-03 01:20:29,142 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:20:29" (1/1) ...
[2024-11-03 01:20:29,174 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:20:29,301 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-76.i[916,929]
[2024-11-03 01:20:29,407 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:20:29,425 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:20:29,433 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-76.i[916,929]
[2024-11-03 01:20:29,488 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:20:29,505 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:20:29,506 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:20:29 WrapperNode
[2024-11-03 01:20:29,506 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:20:29,507 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:20:29,507 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:20:29,507 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:20:29,512 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:20:29" (1/1) ...
[2024-11-03 01:20:29,526 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:20:29" (1/1) ...
[2024-11-03 01:20:29,550 INFO  L138                Inliner]: procedures = 27, calls = 69, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 381
[2024-11-03 01:20:29,551 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:20:29,551 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:20:29,552 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:20:29,552 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:20:29,559 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:20:29" (1/1) ...
[2024-11-03 01:20:29,559 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:20:29" (1/1) ...
[2024-11-03 01:20:29,564 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:20:29" (1/1) ...
[2024-11-03 01:20:29,599 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 01:20:29,600 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:20:29" (1/1) ...
[2024-11-03 01:20:29,600 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:20:29" (1/1) ...
[2024-11-03 01:20:29,625 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:20:29" (1/1) ...
[2024-11-03 01:20:29,629 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:20:29" (1/1) ...
[2024-11-03 01:20:29,632 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:20:29" (1/1) ...
[2024-11-03 01:20:29,634 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:20:29" (1/1) ...
[2024-11-03 01:20:29,639 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:20:29,640 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:20:29,640 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:20:29,640 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:20:29,641 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:20:29" (1/1) ...
[2024-11-03 01:20:29,647 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:20:29,659 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:20:29,674 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 01:20:29,676 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 01:20:29,695 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:20:29,695 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:20:29,696 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:20:29,696 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:20:29,696 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:20:29,696 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:20:29,781 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:20:29,784 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:21:02,110 INFO  L?                        ?]: Removed 38 outVars from TransFormulas that were not future-live.
[2024-11-03 01:21:02,110 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:21:02,127 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:21:02,127 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:21:02,130 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:21:02 BoogieIcfgContainer
[2024-11-03 01:21:02,130 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:21:02,132 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:21:02,133 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:21:02,136 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:21:02,137 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:20:29" (1/3) ...
[2024-11-03 01:21:02,138 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357e80a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:21:02, skipping insertion in model container
[2024-11-03 01:21:02,138 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:20:29" (2/3) ...
[2024-11-03 01:21:02,138 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357e80a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:21:02, skipping insertion in model container
[2024-11-03 01:21:02,139 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:21:02" (3/3) ...
[2024-11-03 01:21:02,140 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-76.i
[2024-11-03 01:21:02,154 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:21:02,154 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:21:02,217 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:21:02,222 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;@735551d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:21:02,225 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:21:02,231 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 159 states, 100 states have (on average 1.48) internal successors, (148), 101 states have internal predecessors, (148), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56)
[2024-11-03 01:21:02,249 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 353
[2024-11-03 01:21:02,250 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:21:02,251 INFO  L215           NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:02,251 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:21:02,255 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:21:02,255 INFO  L85        PathProgramCache]: Analyzing trace with hash -322965104, now seen corresponding path program 1 times
[2024-11-03 01:21:02,261 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:21:02,262 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060786171]
[2024-11-03 01:21:02,262 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:21:02,263 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:21:02,264 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:21:02,266 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 01:21:02,267 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 01:21:03,163 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:21:03,207 INFO  L255         TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:21:03,219 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:21:03,277 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 6050 trivial. 0 not checked.
[2024-11-03 01:21:03,277 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:21:09,181 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 6050 trivial. 0 not checked.
[2024-11-03 01:21:09,182 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:21:09,182 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060786171]
[2024-11-03 01:21:09,182 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2060786171] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:21:09,183 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:21:09,183 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:21:09,184 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931950126]
[2024-11-03 01:21:09,185 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:21:09,189 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:21:09,189 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:21:09,203 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:21:09,204 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:21:09,205 INFO  L87              Difference]: Start difference. First operand  has 159 states, 100 states have (on average 1.48) internal successors, (148), 101 states have internal predecessors, (148), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand  has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 1 states have call successors, (56), 1 states have call predecessors, (56), 2 states have return successors, (56), 2 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:21:09,236 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:21:09,237 INFO  L93              Difference]: Finished difference Result 311 states and 570 transitions.
[2024-11-03 01:21:09,237 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:21:09,238 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 1 states have call successors, (56), 1 states have call predecessors, (56), 2 states have return successors, (56), 2 states have call predecessors, (56), 1 states have call successors, (56) Word has length 352
[2024-11-03 01:21:09,239 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:21:09,247 INFO  L225             Difference]: With dead ends: 311
[2024-11-03 01:21:09,247 INFO  L226             Difference]: Without dead ends: 155
[2024-11-03 01:21:09,252 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 702 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 01:21:09,256 INFO  L432           NwaCegarLoop]: 253 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, 253 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 01:21:09,257 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:21:09,269 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 155 states.
[2024-11-03 01:21:09,293 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155.
[2024-11-03 01:21:09,294 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 155 states, 97 states have (on average 1.4536082474226804) internal successors, (141), 97 states have internal predecessors, (141), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56)
[2024-11-03 01:21:09,296 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 253 transitions.
[2024-11-03 01:21:09,298 INFO  L78                 Accepts]: Start accepts. Automaton has 155 states and 253 transitions. Word has length 352
[2024-11-03 01:21:09,298 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:21:09,298 INFO  L471      AbstractCegarLoop]: Abstraction has 155 states and 253 transitions.
[2024-11-03 01:21:09,298 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 1 states have call successors, (56), 1 states have call predecessors, (56), 2 states have return successors, (56), 2 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:21:09,299 INFO  L276                IsEmpty]: Start isEmpty. Operand 155 states and 253 transitions.
[2024-11-03 01:21:09,303 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 353
[2024-11-03 01:21:09,303 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:21:09,303 INFO  L215           NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:09,316 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 01:21:09,503 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 01:21:09,504 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:21:09,505 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:21:09,505 INFO  L85        PathProgramCache]: Analyzing trace with hash -557165860, now seen corresponding path program 1 times
[2024-11-03 01:21:09,505 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:21:09,505 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550131506]
[2024-11-03 01:21:09,505 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:21:09,506 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:21:09,506 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:21:09,508 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 01:21:09,508 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 01:21:10,295 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:21:10,345 INFO  L255         TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:21:10,352 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:21:10,552 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked.
[2024-11-03 01:21:10,552 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:21:16,447 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked.
[2024-11-03 01:21:16,447 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:21:16,448 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550131506]
[2024-11-03 01:21:16,448 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [550131506] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:21:16,448 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:21:16,448 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:21:16,448 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787373034]
[2024-11-03 01:21:16,448 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:21:16,451 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:21:16,451 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:21:16,452 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:21:16,452 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:21:16,452 INFO  L87              Difference]: Start difference. First operand 155 states and 253 transitions. Second operand  has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:21:18,891 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:21:23,768 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:21:27,780 WARN  L539   Checker$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 01:21:28,081 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:21:28,081 INFO  L93              Difference]: Finished difference Result 456 states and 747 transitions.
[2024-11-03 01:21:28,082 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:21:28,082 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 352
[2024-11-03 01:21:28,084 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:21:28,088 INFO  L225             Difference]: With dead ends: 456
[2024-11-03 01:21:28,088 INFO  L226             Difference]: Without dead ends: 304
[2024-11-03 01:21:28,089 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 701 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 01:21:28,090 INFO  L432           NwaCegarLoop]: 248 mSDtfsCounter, 238 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time
[2024-11-03 01:21:28,093 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 480 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time]
[2024-11-03 01:21:28,095 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 304 states.
[2024-11-03 01:21:28,143 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 302.
[2024-11-03 01:21:28,146 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 302 states, 187 states have (on average 1.427807486631016) internal successors, (267), 187 states have internal predecessors, (267), 112 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112)
[2024-11-03 01:21:28,148 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 491 transitions.
[2024-11-03 01:21:28,149 INFO  L78                 Accepts]: Start accepts. Automaton has 302 states and 491 transitions. Word has length 352
[2024-11-03 01:21:28,150 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:21:28,150 INFO  L471      AbstractCegarLoop]: Abstraction has 302 states and 491 transitions.
[2024-11-03 01:21:28,150 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:21:28,150 INFO  L276                IsEmpty]: Start isEmpty. Operand 302 states and 491 transitions.
[2024-11-03 01:21:28,155 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 353
[2024-11-03 01:21:28,155 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:21:28,155 INFO  L215           NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:28,166 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 01:21:28,359 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 01:21:28,360 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:21:28,361 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:21:28,361 INFO  L85        PathProgramCache]: Analyzing trace with hash -1066638950, now seen corresponding path program 1 times
[2024-11-03 01:21:28,361 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:21:28,361 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369937509]
[2024-11-03 01:21:28,361 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:21:28,361 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:21:28,362 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:21:28,364 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 01:21:28,365 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 01:21:29,162 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:21:29,209 INFO  L255         TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:21:29,216 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:21:29,968 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked.
[2024-11-03 01:21:29,968 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:21:36,969 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked.
[2024-11-03 01:21:36,969 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:21:36,969 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1369937509]
[2024-11-03 01:21:36,970 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1369937509] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:21:36,970 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:21:36,973 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:21:36,973 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502761786]
[2024-11-03 01:21:36,973 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:21:36,974 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:21:36,974 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:21:36,974 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:21:36,975 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:21:36,975 INFO  L87              Difference]: Start difference. First operand 302 states and 491 transitions. Second operand  has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:21:41,839 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:21:45,851 WARN  L539   Checker$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 01:21:46,116 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:21:46,116 INFO  L93              Difference]: Finished difference Result 686 states and 1109 transitions.
[2024-11-03 01:21:46,117 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:21:46,117 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 352
[2024-11-03 01:21:46,118 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:21:46,120 INFO  L225             Difference]: With dead ends: 686
[2024-11-03 01:21:46,120 INFO  L226             Difference]: Without dead ends: 387
[2024-11-03 01:21:46,121 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 701 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 01:21:46,122 INFO  L432           NwaCegarLoop]: 296 mSDtfsCounter, 62 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time
[2024-11-03 01:21:46,122 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 535 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time]
[2024-11-03 01:21:46,123 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 387 states.
[2024-11-03 01:21:46,146 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 383.
[2024-11-03 01:21:46,148 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 383 states, 262 states have (on average 1.465648854961832) internal successors, (384), 264 states have internal predecessors, (384), 116 states have call successors, (116), 4 states have call predecessors, (116), 4 states have return successors, (116), 114 states have call predecessors, (116), 116 states have call successors, (116)
[2024-11-03 01:21:46,150 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 616 transitions.
[2024-11-03 01:21:46,150 INFO  L78                 Accepts]: Start accepts. Automaton has 383 states and 616 transitions. Word has length 352
[2024-11-03 01:21:46,151 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:21:46,151 INFO  L471      AbstractCegarLoop]: Abstraction has 383 states and 616 transitions.
[2024-11-03 01:21:46,151 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:21:46,152 INFO  L276                IsEmpty]: Start isEmpty. Operand 383 states and 616 transitions.
[2024-11-03 01:21:46,155 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 353
[2024-11-03 01:21:46,155 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:21:46,155 INFO  L215           NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:46,164 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 01:21:46,356 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 01:21:46,357 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:21:46,357 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:21:46,357 INFO  L85        PathProgramCache]: Analyzing trace with hash -926090340, now seen corresponding path program 1 times
[2024-11-03 01:21:46,357 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:21:46,357 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067514799]
[2024-11-03 01:21:46,358 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:21:46,358 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:21:46,358 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:21:46,359 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 01:21:46,360 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 01:21:47,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:21:47,172 INFO  L255         TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:21:47,176 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:21:47,939 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked.
[2024-11-03 01:21:47,940 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:21:54,663 INFO  L134       CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked.
[2024-11-03 01:21:54,663 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:21:54,663 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067514799]
[2024-11-03 01:21:54,663 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2067514799] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:21:54,663 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:21:54,664 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:21:54,664 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824544664]
[2024-11-03 01:21:54,664 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:21:54,664 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:21:54,664 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:21:54,665 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:21:54,665 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:21:54,666 INFO  L87              Difference]: Start difference. First operand 383 states and 616 transitions. Second operand  has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:21:59,477 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:22:03,480 WARN  L539   Checker$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 01:22:03,497 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:22:03,497 INFO  L93              Difference]: Finished difference Result 983 states and 1572 transitions.
[2024-11-03 01:22:03,742 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:22:03,743 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 352
[2024-11-03 01:22:03,743 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:22:03,748 INFO  L225             Difference]: With dead ends: 983
[2024-11-03 01:22:03,748 INFO  L226             Difference]: Without dead ends: 603
[2024-11-03 01:22:03,749 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 701 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 01:22:03,750 INFO  L432           NwaCegarLoop]: 252 mSDtfsCounter, 120 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time
[2024-11-03 01:22:03,750 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 493 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time]
[2024-11-03 01:22:03,751 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 603 states.
[2024-11-03 01:22:03,786 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 599.
[2024-11-03 01:22:03,788 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 599 states, 408 states have (on average 1.4411764705882353) internal successors, (588), 414 states have internal predecessors, (588), 182 states have call successors, (182), 8 states have call predecessors, (182), 8 states have return successors, (182), 176 states have call predecessors, (182), 182 states have call successors, (182)
[2024-11-03 01:22:03,790 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 952 transitions.
[2024-11-03 01:22:03,791 INFO  L78                 Accepts]: Start accepts. Automaton has 599 states and 952 transitions. Word has length 352
[2024-11-03 01:22:03,794 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:22:03,794 INFO  L471      AbstractCegarLoop]: Abstraction has 599 states and 952 transitions.
[2024-11-03 01:22:03,794 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-03 01:22:03,794 INFO  L276                IsEmpty]: Start isEmpty. Operand 599 states and 952 transitions.
[2024-11-03 01:22:03,796 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 353
[2024-11-03 01:22:03,796 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:22:03,796 INFO  L215           NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:03,807 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 01:22:03,996 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 01:22:03,997 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:22:03,997 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:22:03,998 INFO  L85        PathProgramCache]: Analyzing trace with hash -983348642, now seen corresponding path program 1 times
[2024-11-03 01:22:03,998 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:22:03,998 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245408757]
[2024-11-03 01:22:03,998 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:22:03,998 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:22:03,998 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:22:04,000 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 01:22:04,001 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 01:22:07,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:22:07,490 INFO  L255         TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 01:22:07,496 INFO  L278         TraceCheckSpWp]: Computing forward predicates...