/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-95.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:05:14,972 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:05:15,016 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 01:05:15,023 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:05:15,024 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:05:15,043 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:05:15,043 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:05:15,043 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:05:15,044 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:05:15,044 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:05:15,044 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:05:15,045 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:05:15,045 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:05:15,045 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:05:15,045 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:05:15,046 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:05:15,046 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:05:15,046 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:05:15,046 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:05:15,047 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:05:15,047 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:05:15,052 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:05:15,053 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:05:15,053 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:05:15,053 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:05:15,053 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:05:15,053 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:05:15,053 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:05:15,054 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:05:15,054 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:05:15,054 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:05:15,054 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:05:15,054 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:05:15,055 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:05:15,055 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:05:15,055 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:05:15,055 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:05:15,055 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:05:15,056 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:05:15,056 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:05:15,056 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:05:15,059 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:05:15,059 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:05:15,059 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:05:15,059 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:05:15,255 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:05:15,275 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:05:15,277 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:05:15,278 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:05:15,279 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:05:15,280 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-95.i
[2024-11-03 01:05:16,652 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:05:16,843 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:05:16,844 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-95.i
[2024-11-03 01:05:16,858 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6893e916e/c43c3ee345964b67b0ee86453bfb7428/FLAGab55d6bcb
[2024-11-03 01:05:16,874 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6893e916e/c43c3ee345964b67b0ee86453bfb7428
[2024-11-03 01:05:16,877 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:05:16,878 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:05:16,880 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:05:16,880 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:05:16,884 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:05:16,885 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:05:16" (1/1) ...
[2024-11-03 01:05:16,886 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@645fb4cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:16, skipping insertion in model container
[2024-11-03 01:05:16,886 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:05:16" (1/1) ...
[2024-11-03 01:05:16,915 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:05:17,068 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-95.i[916,929]
[2024-11-03 01:05:17,133 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:05:17,145 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:05:17,155 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-95.i[916,929]
[2024-11-03 01:05:17,183 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:05:17,197 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:05:17,198 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:17 WrapperNode
[2024-11-03 01:05:17,198 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:05:17,199 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:05:17,199 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:05:17,199 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:05:17,204 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:17" (1/1) ...
[2024-11-03 01:05:17,220 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:17" (1/1) ...
[2024-11-03 01:05:17,244 INFO  L138                Inliner]: procedures = 27, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 215
[2024-11-03 01:05:17,245 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:05:17,245 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:05:17,245 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:05:17,245 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:05:17,254 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:17" (1/1) ...
[2024-11-03 01:05:17,254 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:17" (1/1) ...
[2024-11-03 01:05:17,258 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:17" (1/1) ...
[2024-11-03 01:05:17,270 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 01:05:17,270 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:17" (1/1) ...
[2024-11-03 01:05:17,270 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:17" (1/1) ...
[2024-11-03 01:05:17,279 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:17" (1/1) ...
[2024-11-03 01:05:17,282 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:17" (1/1) ...
[2024-11-03 01:05:17,284 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:17" (1/1) ...
[2024-11-03 01:05:17,286 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:17" (1/1) ...
[2024-11-03 01:05:17,289 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:05:17,290 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:05:17,290 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:05:17,290 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:05:17,291 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:17" (1/1) ...
[2024-11-03 01:05:17,295 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:05:17,305 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:05:17,317 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 01:05:17,321 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 01:05:17,341 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:05:17,341 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:05:17,341 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:05:17,341 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:05:17,341 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:05:17,341 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:05:17,410 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:05:17,412 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:05:41,066 INFO  L?                        ?]: Removed 24 outVars from TransFormulas that were not future-live.
[2024-11-03 01:05:41,067 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:05:41,080 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:05:41,081 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:05:41,081 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:05:41 BoogieIcfgContainer
[2024-11-03 01:05:41,081 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:05:41,083 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:05:41,083 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:05:41,085 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:05:41,085 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:05:16" (1/3) ...
[2024-11-03 01:05:41,086 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4829e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:05:41, skipping insertion in model container
[2024-11-03 01:05:41,086 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:17" (2/3) ...
[2024-11-03 01:05:41,086 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4829e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:05:41, skipping insertion in model container
[2024-11-03 01:05:41,087 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:05:41" (3/3) ...
[2024-11-03 01:05:41,089 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-95.i
[2024-11-03 01:05:41,100 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:05:41,100 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:05:41,159 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:05:41,163 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;@278109d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:05:41,163 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:05:41,168 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 97 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 63 states have internal predecessors, (90), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-03 01:05:41,182 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 204
[2024-11-03 01:05:41,183 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:05:41,183 INFO  L215           NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:05:41,184 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:05:41,188 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:05:41,188 INFO  L85        PathProgramCache]: Analyzing trace with hash -1029300411, now seen corresponding path program 1 times
[2024-11-03 01:05:41,194 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:05:41,194 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311554153]
[2024-11-03 01:05:41,194 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:05:41,196 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:05:41,196 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:05:41,197 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 01:05:41,199 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 01:05:41,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:05:41,863 INFO  L255         TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:05:41,879 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:05:41,933 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked.
[2024-11-03 01:05:41,933 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:05:44,825 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked.
[2024-11-03 01:05:44,826 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:05:44,826 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1311554153]
[2024-11-03 01:05:44,826 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1311554153] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:05:44,827 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:05:44,827 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:05:44,828 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043758810]
[2024-11-03 01:05:44,829 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:05:44,833 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:05:44,833 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:05:44,849 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:05:44,850 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:05:44,852 INFO  L87              Difference]: Start difference. First operand  has 97 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 63 states have internal predecessors, (90), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32)
[2024-11-03 01:05:44,874 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:05:44,874 INFO  L93              Difference]: Finished difference Result 185 states and 330 transitions.
[2024-11-03 01:05:44,876 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:05:44,878 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) Word has length 203
[2024-11-03 01:05:44,878 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:05:44,884 INFO  L225             Difference]: With dead ends: 185
[2024-11-03 01:05:44,884 INFO  L226             Difference]: Without dead ends: 91
[2024-11-03 01:05:44,887 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 404 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 01:05:44,889 INFO  L432           NwaCegarLoop]: 142 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, 142 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 01:05:44,889 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:05:44,902 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 91 states.
[2024-11-03 01:05:44,921 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91.
[2024-11-03 01:05:44,922 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91 states, 57 states have (on average 1.368421052631579) internal successors, (78), 57 states have internal predecessors, (78), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-03 01:05:44,924 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 142 transitions.
[2024-11-03 01:05:44,926 INFO  L78                 Accepts]: Start accepts. Automaton has 91 states and 142 transitions. Word has length 203
[2024-11-03 01:05:44,926 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:05:44,926 INFO  L471      AbstractCegarLoop]: Abstraction has 91 states and 142 transitions.
[2024-11-03 01:05:44,926 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32)
[2024-11-03 01:05:44,926 INFO  L276                IsEmpty]: Start isEmpty. Operand 91 states and 142 transitions.
[2024-11-03 01:05:44,933 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 204
[2024-11-03 01:05:44,933 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:05:44,933 INFO  L215           NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:05:44,942 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 01:05:45,134 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 01:05:45,134 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:05:45,135 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:05:45,135 INFO  L85        PathProgramCache]: Analyzing trace with hash -580211199, now seen corresponding path program 1 times
[2024-11-03 01:05:45,135 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:05:45,136 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833688945]
[2024-11-03 01:05:45,136 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:05:45,136 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:05:45,136 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:05:45,138 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 01:05:45,143 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 01:05:45,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:05:45,835 INFO  L255         TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:05:45,844 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:05:46,042 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked.
[2024-11-03 01:05:46,042 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:05:49,144 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked.
[2024-11-03 01:05:49,145 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:05:49,145 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833688945]
[2024-11-03 01:05:49,145 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1833688945] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:05:49,145 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:05:49,146 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:05:49,146 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61441534]
[2024-11-03 01:05:49,146 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:05:49,147 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:05:49,147 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:05:49,148 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:05:49,148 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:05:49,149 INFO  L87              Difference]: Start difference. First operand 91 states and 142 transitions. Second operand  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32)
[2024-11-03 01:05:51,324 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:05:55,945 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:05:59,955 WARN  L539   Checker$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 01:06:00,271 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:06:00,271 INFO  L93              Difference]: Finished difference Result 264 states and 414 transitions.
[2024-11-03 01:06:00,273 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:06:00,274 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 203
[2024-11-03 01:06:00,275 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:06:00,285 INFO  L225             Difference]: With dead ends: 264
[2024-11-03 01:06:00,285 INFO  L226             Difference]: Without dead ends: 176
[2024-11-03 01:06:00,286 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 403 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 01:06:00,287 INFO  L432           NwaCegarLoop]: 264 mSDtfsCounter, 131 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time
[2024-11-03 01:06:00,288 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 389 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time]
[2024-11-03 01:06:00,294 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 176 states.
[2024-11-03 01:06:00,325 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 93.
[2024-11-03 01:06:00,326 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 93 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 59 states have internal predecessors, (79), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-03 01:06:00,333 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 143 transitions.
[2024-11-03 01:06:00,334 INFO  L78                 Accepts]: Start accepts. Automaton has 93 states and 143 transitions. Word has length 203
[2024-11-03 01:06:00,339 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:06:00,339 INFO  L471      AbstractCegarLoop]: Abstraction has 93 states and 143 transitions.
[2024-11-03 01:06:00,339 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32)
[2024-11-03 01:06:00,339 INFO  L276                IsEmpty]: Start isEmpty. Operand 93 states and 143 transitions.
[2024-11-03 01:06:00,344 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 204
[2024-11-03 01:06:00,344 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:06:00,344 INFO  L215           NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:06:00,355 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 01:06:00,544 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 01:06:00,545 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:06:00,545 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:06:00,546 INFO  L85        PathProgramCache]: Analyzing trace with hash 120853379, now seen corresponding path program 1 times
[2024-11-03 01:06:00,546 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:06:00,546 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1483231101]
[2024-11-03 01:06:00,546 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:06:00,546 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:06:00,546 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:06:00,549 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 01:06:00,550 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 01:06:05,351 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:06:05,413 INFO  L255         TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-03 01:06:05,420 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:06:09,569 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 1003 proven. 39 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked.
[2024-11-03 01:06:09,570 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:06:14,697 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 54 proven. 39 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked.
[2024-11-03 01:06:14,697 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:06:14,698 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1483231101]
[2024-11-03 01:06:14,698 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1483231101] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 01:06:14,698 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 01:06:14,698 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-03 01:06:14,698 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847956356]
[2024-11-03 01:06:14,698 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 01:06:14,699 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-03 01:06:14,699 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:06:14,700 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-03 01:06:14,700 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 01:06:14,700 INFO  L87              Difference]: Start difference. First operand 93 states and 143 transitions. Second operand  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46)
[2024-11-03 01:06:23,951 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:06:27,959 WARN  L539   Checker$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 01:06:31,968 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 01:06:31,970 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:06:31,970 INFO  L93              Difference]: Finished difference Result 189 states and 288 transitions.
[2024-11-03 01:06:32,169 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-03 01:06:32,170 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 203
[2024-11-03 01:06:32,171 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:06:32,172 INFO  L225             Difference]: With dead ends: 189
[2024-11-03 01:06:32,172 INFO  L226             Difference]: Without dead ends: 99
[2024-11-03 01:06:32,173 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 398 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2024-11-03 01:06:32,174 INFO  L432           NwaCegarLoop]: 101 mSDtfsCounter, 82 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time
[2024-11-03 01:06:32,174 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 240 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 175 Invalid, 3 Unknown, 0 Unchecked, 16.7s Time]
[2024-11-03 01:06:32,175 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2024-11-03 01:06:32,214 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97.
[2024-11-03 01:06:32,215 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 97 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 62 states have internal predecessors, (81), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-03 01:06:32,215 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 145 transitions.
[2024-11-03 01:06:32,216 INFO  L78                 Accepts]: Start accepts. Automaton has 97 states and 145 transitions. Word has length 203
[2024-11-03 01:06:32,216 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:06:32,216 INFO  L471      AbstractCegarLoop]: Abstraction has 97 states and 145 transitions.
[2024-11-03 01:06:32,217 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46)
[2024-11-03 01:06:32,217 INFO  L276                IsEmpty]: Start isEmpty. Operand 97 states and 145 transitions.
[2024-11-03 01:06:32,219 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 205
[2024-11-03 01:06:32,219 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:06:32,219 INFO  L215           NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:06:32,267 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 01:06:32,420 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 01:06:32,420 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:06:32,421 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:06:32,421 INFO  L85        PathProgramCache]: Analyzing trace with hash 736638954, now seen corresponding path program 1 times
[2024-11-03 01:06:32,421 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:06:32,421 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74587760]
[2024-11-03 01:06:32,421 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:06:32,421 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:06:32,421 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:06:32,425 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 01:06:32,426 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 01:06:40,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:06:40,776 INFO  L255         TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 53 conjuncts are in the unsatisfiable core
[2024-11-03 01:06:40,795 INFO  L278         TraceCheckSpWp]: Computing forward predicates...