/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-64.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:18:41,928 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:18:41,981 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 01:18:41,985 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:18:41,985 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:18:41,999 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:18:42,000 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:18:42,000 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:18:42,001 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:18:42,001 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:18:42,001 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:18:42,001 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:18:42,002 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:18:42,002 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:18:42,002 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:18:42,002 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:18:42,003 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:18:42,003 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:18:42,003 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:18:42,003 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:18:42,004 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:18:42,006 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:18:42,006 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:18:42,006 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:18:42,006 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:18:42,006 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:18:42,007 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:18:42,007 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:18:42,007 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:18:42,007 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:18:42,007 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:18:42,008 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:18:42,008 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:18:42,008 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:18:42,008 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:18:42,009 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:18:42,009 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:18:42,009 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:18:42,009 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:18:42,009 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:18:42,009 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:18:42,012 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:18:42,013 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:18:42,013 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:18:42,013 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:18:42,201 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:18:42,223 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:18:42,226 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:18:42,227 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:18:42,227 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:18:42,228 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-64.i
[2024-11-03 01:18:43,522 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:18:43,718 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:18:43,719 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-64.i
[2024-11-03 01:18:43,733 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc8a0c40/be09624d096145a087f467be0c44299b/FLAGef719a6c0
[2024-11-03 01:18:43,752 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc8a0c40/be09624d096145a087f467be0c44299b
[2024-11-03 01:18:43,754 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:18:43,756 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:18:43,758 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:18:43,758 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:18:43,763 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:18:43,764 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:18:43" (1/1) ...
[2024-11-03 01:18:43,765 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e03d528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:43, skipping insertion in model container
[2024-11-03 01:18:43,765 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:18:43" (1/1) ...
[2024-11-03 01:18:43,804 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:18:43,927 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-64.i[916,929]
[2024-11-03 01:18:44,023 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:18:44,037 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:18:44,046 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-64.i[916,929]
[2024-11-03 01:18:44,109 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:18:44,133 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:18:44,134 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:44 WrapperNode
[2024-11-03 01:18:44,134 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:18:44,135 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:18:44,135 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:18:44,135 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:18:44,142 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:44" (1/1) ...
[2024-11-03 01:18:44,155 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:44" (1/1) ...
[2024-11-03 01:18:44,188 INFO  L138                Inliner]: procedures = 27, calls = 52, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 323
[2024-11-03 01:18:44,188 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:18:44,189 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:18:44,189 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:18:44,189 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:18:44,201 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:44" (1/1) ...
[2024-11-03 01:18:44,202 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:44" (1/1) ...
[2024-11-03 01:18:44,207 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:44" (1/1) ...
[2024-11-03 01:18:44,222 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 01:18:44,223 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:44" (1/1) ...
[2024-11-03 01:18:44,223 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:44" (1/1) ...
[2024-11-03 01:18:44,238 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:44" (1/1) ...
[2024-11-03 01:18:44,245 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:44" (1/1) ...
[2024-11-03 01:18:44,253 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:44" (1/1) ...
[2024-11-03 01:18:44,256 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:44" (1/1) ...
[2024-11-03 01:18:44,264 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:18:44,268 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:18:44,269 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:18:44,269 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:18:44,269 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:44" (1/1) ...
[2024-11-03 01:18:44,276 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:18:44,287 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:18:44,302 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 01:18:44,306 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 01:18:44,326 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:18:44,326 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:18:44,326 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:18:44,327 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:18:44,327 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:18:44,327 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:18:44,410 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:18:44,412 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:19:15,770 INFO  L?                        ?]: Removed 36 outVars from TransFormulas that were not future-live.
[2024-11-03 01:19:15,770 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:19:15,787 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:19:15,788 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:19:15,788 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:19:15 BoogieIcfgContainer
[2024-11-03 01:19:15,788 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:19:15,789 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:19:15,789 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:19:15,792 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:19:15,792 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:18:43" (1/3) ...
[2024-11-03 01:19:15,793 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1901a01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:19:15, skipping insertion in model container
[2024-11-03 01:19:15,793 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:18:44" (2/3) ...
[2024-11-03 01:19:15,793 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1901a01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:19:15, skipping insertion in model container
[2024-11-03 01:19:15,793 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:19:15" (3/3) ...
[2024-11-03 01:19:15,794 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-64.i
[2024-11-03 01:19:15,807 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:19:15,807 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:19:15,872 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:19:15,878 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;@444ba870, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:19:15,878 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:19:15,883 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 133 states, 91 states have (on average 1.5164835164835164) internal successors, (138), 92 states have internal predecessors, (138), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39)
[2024-11-03 01:19:15,899 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 257
[2024-11-03 01:19:15,899 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:19:15,900 INFO  L215           NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:19:15,901 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:19:15,906 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:19:15,906 INFO  L85        PathProgramCache]: Analyzing trace with hash 685526102, now seen corresponding path program 1 times
[2024-11-03 01:19:15,913 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:19:15,914 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484316109]
[2024-11-03 01:19:15,914 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:19:15,917 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:19:15,917 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:19:15,923 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 01:19:15,924 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 01:19:16,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:19:16,760 INFO  L255         TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:19:16,771 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:19:16,819 INFO  L134       CoverageAnalysis]: Checked inductivity of 2964 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 2888 trivial. 0 not checked.
[2024-11-03 01:19:16,819 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:19:20,733 INFO  L134       CoverageAnalysis]: Checked inductivity of 2964 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 2888 trivial. 0 not checked.
[2024-11-03 01:19:20,734 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:19:20,735 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484316109]
[2024-11-03 01:19:20,735 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [484316109] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:19:20,735 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:19:20,735 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:19:20,739 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222536612]
[2024-11-03 01:19:20,740 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:19:20,744 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:19:20,745 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:19:20,766 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:19:20,767 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:19:20,769 INFO  L87              Difference]: Start difference. First operand  has 133 states, 91 states have (on average 1.5164835164835164) internal successors, (138), 92 states have internal predecessors, (138), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand  has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 1 states have call successors, (39), 1 states have call predecessors, (39), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39)
[2024-11-03 01:19:20,798 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:19:20,798 INFO  L93              Difference]: Finished difference Result 259 states and 465 transitions.
[2024-11-03 01:19:20,799 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:19:20,800 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 1 states have call successors, (39), 1 states have call predecessors, (39), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39) Word has length 256
[2024-11-03 01:19:20,801 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:19:20,807 INFO  L225             Difference]: With dead ends: 259
[2024-11-03 01:19:20,807 INFO  L226             Difference]: Without dead ends: 129
[2024-11-03 01:19:20,811 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 510 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 01:19:20,814 INFO  L432           NwaCegarLoop]: 209 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, 209 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 01:19:20,814 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:19:20,829 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 129 states.
[2024-11-03 01:19:20,852 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129.
[2024-11-03 01:19:20,853 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 129 states, 88 states have (on average 1.4886363636363635) internal successors, (131), 88 states have internal predecessors, (131), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39)
[2024-11-03 01:19:20,855 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 209 transitions.
[2024-11-03 01:19:20,857 INFO  L78                 Accepts]: Start accepts. Automaton has 129 states and 209 transitions. Word has length 256
[2024-11-03 01:19:20,857 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:19:20,857 INFO  L471      AbstractCegarLoop]: Abstraction has 129 states and 209 transitions.
[2024-11-03 01:19:20,858 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 1 states have call successors, (39), 1 states have call predecessors, (39), 2 states have return successors, (39), 2 states have call predecessors, (39), 1 states have call successors, (39)
[2024-11-03 01:19:20,858 INFO  L276                IsEmpty]: Start isEmpty. Operand 129 states and 209 transitions.
[2024-11-03 01:19:20,862 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 257
[2024-11-03 01:19:20,862 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:19:20,863 INFO  L215           NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:19:20,890 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0
[2024-11-03 01:19:21,063 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 01:19:21,064 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:19:21,065 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:19:21,065 INFO  L85        PathProgramCache]: Analyzing trace with hash -2102470820, now seen corresponding path program 1 times
[2024-11-03 01:19:21,066 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:19:21,066 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103692524]
[2024-11-03 01:19:21,066 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:19:21,066 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:19:21,066 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:19:21,067 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 01:19:21,069 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 01:19:21,804 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:19:21,864 INFO  L255         TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:19:21,871 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:19:22,099 INFO  L134       CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked.
[2024-11-03 01:19:22,099 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:19:26,106 INFO  L134       CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked.
[2024-11-03 01:19:26,107 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:19:26,107 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103692524]
[2024-11-03 01:19:26,107 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1103692524] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:19:26,108 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:19:26,108 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:19:26,108 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886797313]
[2024-11-03 01:19:26,108 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:19:26,110 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:19:26,110 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:19:26,111 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:19:26,111 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:19:26,111 INFO  L87              Difference]: Start difference. First operand 129 states and 209 transitions. Second operand  has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39)
[2024-11-03 01:19:31,068 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 01:19:35,082 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 01:19:35,363 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:19:35,364 INFO  L93              Difference]: Finished difference Result 313 states and 513 transitions.
[2024-11-03 01:19:35,364 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:19:35,365 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 256
[2024-11-03 01:19:35,366 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:19:35,368 INFO  L225             Difference]: With dead ends: 313
[2024-11-03 01:19:35,368 INFO  L226             Difference]: Without dead ends: 187
[2024-11-03 01:19:35,371 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 509 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 01:19:35,372 INFO  L432           NwaCegarLoop]: 237 mSDtfsCounter, 94 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time
[2024-11-03 01:19:35,372 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 437 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time]
[2024-11-03 01:19:35,373 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 187 states.
[2024-11-03 01:19:35,391 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 147.
[2024-11-03 01:19:35,392 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 147 states, 106 states have (on average 1.5377358490566038) internal successors, (163), 106 states have internal predecessors, (163), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39)
[2024-11-03 01:19:35,394 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 241 transitions.
[2024-11-03 01:19:35,395 INFO  L78                 Accepts]: Start accepts. Automaton has 147 states and 241 transitions. Word has length 256
[2024-11-03 01:19:35,400 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:19:35,400 INFO  L471      AbstractCegarLoop]: Abstraction has 147 states and 241 transitions.
[2024-11-03 01:19:35,401 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39)
[2024-11-03 01:19:35,401 INFO  L276                IsEmpty]: Start isEmpty. Operand 147 states and 241 transitions.
[2024-11-03 01:19:35,408 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 259
[2024-11-03 01:19:35,409 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:19:35,409 INFO  L215           NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:19:35,418 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 01:19:35,609 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 01:19:35,610 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:19:35,611 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:19:35,611 INFO  L85        PathProgramCache]: Analyzing trace with hash -2073050836, now seen corresponding path program 1 times
[2024-11-03 01:19:35,612 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:19:35,612 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [562167361]
[2024-11-03 01:19:35,612 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:19:35,612 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:19:35,612 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:19:35,616 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 01:19:35,618 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 01:19:36,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:19:36,384 INFO  L255         TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:19:36,390 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:19:36,929 INFO  L134       CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked.
[2024-11-03 01:19:36,930 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:19:41,339 INFO  L134       CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked.
[2024-11-03 01:19:41,339 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:19:41,339 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [562167361]
[2024-11-03 01:19:41,339 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [562167361] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:19:41,340 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:19:41,340 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:19:41,340 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247649884]
[2024-11-03 01:19:41,340 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:19:41,341 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:19:41,342 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:19:41,342 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:19:41,342 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:19:41,343 INFO  L87              Difference]: Start difference. First operand 147 states and 241 transitions. Second operand  has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39)
[2024-11-03 01:19:46,157 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:19:50,187 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:19:50,190 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:19:50,190 INFO  L93              Difference]: Finished difference Result 331 states and 544 transitions.
[2024-11-03 01:19:50,431 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:19:50,432 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 258
[2024-11-03 01:19:50,432 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:19:50,434 INFO  L225             Difference]: With dead ends: 331
[2024-11-03 01:19:50,434 INFO  L226             Difference]: Without dead ends: 187
[2024-11-03 01:19:50,435 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 513 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 01:19:50,437 INFO  L432           NwaCegarLoop]: 214 mSDtfsCounter, 92 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time
[2024-11-03 01:19:50,437 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 412 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time]
[2024-11-03 01:19:50,438 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 187 states.
[2024-11-03 01:19:50,450 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 147.
[2024-11-03 01:19:50,450 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 147 states, 106 states have (on average 1.528301886792453) internal successors, (162), 106 states have internal predecessors, (162), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39)
[2024-11-03 01:19:50,452 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 240 transitions.
[2024-11-03 01:19:50,452 INFO  L78                 Accepts]: Start accepts. Automaton has 147 states and 240 transitions. Word has length 258
[2024-11-03 01:19:50,453 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:19:50,453 INFO  L471      AbstractCegarLoop]: Abstraction has 147 states and 240 transitions.
[2024-11-03 01:19:50,453 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39)
[2024-11-03 01:19:50,453 INFO  L276                IsEmpty]: Start isEmpty. Operand 147 states and 240 transitions.
[2024-11-03 01:19:50,455 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 259
[2024-11-03 01:19:50,455 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:19:50,455 INFO  L215           NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:19:50,467 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2024-11-03 01:19:50,656 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 01:19:50,657 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:19:50,657 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:19:50,657 INFO  L85        PathProgramCache]: Analyzing trace with hash 2061207575, now seen corresponding path program 1 times
[2024-11-03 01:19:50,657 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:19:50,657 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047916217]
[2024-11-03 01:19:50,657 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:19:50,658 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:19:50,658 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:19:50,660 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 01:19:50,661 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 01:19:51,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:19:51,381 INFO  L255         TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 01:19:51,385 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:19:51,848 INFO  L134       CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked.
[2024-11-03 01:19:51,849 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:19:56,164 INFO  L134       CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked.
[2024-11-03 01:19:56,165 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:19:56,165 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047916217]
[2024-11-03 01:19:56,165 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2047916217] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:19:56,165 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:19:56,165 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2024-11-03 01:19:56,165 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91237455]
[2024-11-03 01:19:56,165 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:19:56,166 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 01:19:56,166 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:19:56,168 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 01:19:56,168 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-03 01:19:56,168 INFO  L87              Difference]: Start difference. First operand 147 states and 240 transitions. Second operand  has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39)
[2024-11-03 01:20:01,673 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:20:05,692 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:20:09,705 WARN  L539   Checker$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 01:20:13,719 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 01:20:13,723 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:20:13,723 INFO  L93              Difference]: Finished difference Result 365 states and 591 transitions.
[2024-11-03 01:20:13,988 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 01:20:13,989 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 258
[2024-11-03 01:20:13,990 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:20:13,991 INFO  L225             Difference]: With dead ends: 365
[2024-11-03 01:20:13,992 INFO  L226             Difference]: Without dead ends: 221
[2024-11-03 01:20:13,992 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-03 01:20:13,993 INFO  L432           NwaCegarLoop]: 205 mSDtfsCounter, 118 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time
[2024-11-03 01:20:13,993 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 592 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 4 Unknown, 0 Unchecked, 17.4s Time]
[2024-11-03 01:20:13,994 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 221 states.
[2024-11-03 01:20:14,006 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 218.
[2024-11-03 01:20:14,009 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 218 states, 155 states have (on average 1.4838709677419355) internal successors, (230), 156 states have internal predecessors, (230), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60)
[2024-11-03 01:20:14,014 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 350 transitions.
[2024-11-03 01:20:14,014 INFO  L78                 Accepts]: Start accepts. Automaton has 218 states and 350 transitions. Word has length 258
[2024-11-03 01:20:14,018 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:20:14,019 INFO  L471      AbstractCegarLoop]: Abstraction has 218 states and 350 transitions.
[2024-11-03 01:20:14,019 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39)
[2024-11-03 01:20:14,019 INFO  L276                IsEmpty]: Start isEmpty. Operand 218 states and 350 transitions.
[2024-11-03 01:20:14,020 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 259
[2024-11-03 01:20:14,020 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:20:14,021 INFO  L215           NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:20:14,037 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 01:20:14,221 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 01:20:14,222 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:20:14,222 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:20:14,222 INFO  L85        PathProgramCache]: Analyzing trace with hash -1811057895, now seen corresponding path program 1 times
[2024-11-03 01:20:14,222 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:20:14,222 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891718597]
[2024-11-03 01:20:14,222 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:20:14,223 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:20:14,223 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:20:14,225 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 01:20:14,225 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 01:20:18,076 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:20:18,122 INFO  L255         TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-03 01:20:18,126 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:20:24,789 INFO  L134       CoverageAnalysis]: Checked inductivity of 2964 backedges. 1508 proven. 51 refuted. 0 times theorem prover too weak. 1405 trivial. 0 not checked.
[2024-11-03 01:20:24,789 INFO  L311         TraceCheckSpWp]: Computing backward predicates...