/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-94.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:05:11,413 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:05:11,500 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 01:05:11,505 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:05:11,505 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:05:11,535 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:05:11,536 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:05:11,536 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:05:11,537 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:05:11,539 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:05:11,539 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:05:11,540 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:05:11,541 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:05:11,542 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:05:11,542 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:05:11,543 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:05:11,543 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:05:11,543 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:05:11,544 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:05:11,544 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:05:11,547 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:05:11,548 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:05:11,549 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:05:11,549 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:05:11,549 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:05:11,549 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:05:11,549 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:05:11,550 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:05:11,550 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:05:11,550 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:05:11,550 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:05:11,550 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:05:11,551 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:05:11,551 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:05:11,551 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:05:11,551 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:05:11,552 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:05:11,552 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:05:11,552 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:05:11,553 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:05:11,553 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:05:11,553 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:05:11,554 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:05:11,554 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:05:11,554 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:05:11,789 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:05:11,809 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:05:11,812 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:05:11,813 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:05:11,814 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:05:11,815 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-94.i
[2024-11-03 01:05:13,216 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:05:13,414 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:05:13,415 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-94.i
[2024-11-03 01:05:13,424 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c97a3e2d/57d0833f79fc4d8c82fc0779ef004c4e/FLAGbfe387f4d
[2024-11-03 01:05:13,436 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c97a3e2d/57d0833f79fc4d8c82fc0779ef004c4e
[2024-11-03 01:05:13,439 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:05:13,440 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:05:13,441 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:05:13,441 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:05:13,448 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:05:13,449 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:05:13" (1/1) ...
[2024-11-03 01:05:13,450 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65bdda22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:13, skipping insertion in model container
[2024-11-03 01:05:13,450 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:05:13" (1/1) ...
[2024-11-03 01:05:13,486 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:05:13,641 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-94.i[916,929]
[2024-11-03 01:05:13,729 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:05:13,751 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:05:13,761 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-94.i[916,929]
[2024-11-03 01:05:13,832 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:05:13,856 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:05:13,857 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:13 WrapperNode
[2024-11-03 01:05:13,857 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:05:13,858 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:05:13,858 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:05:13,858 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:05:13,863 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:13" (1/1) ...
[2024-11-03 01:05:13,877 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:13" (1/1) ...
[2024-11-03 01:05:13,906 INFO  L138                Inliner]: procedures = 27, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 194
[2024-11-03 01:05:13,907 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:05:13,907 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:05:13,907 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:05:13,907 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:05:13,919 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:13" (1/1) ...
[2024-11-03 01:05:13,919 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:13" (1/1) ...
[2024-11-03 01:05:13,926 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:13" (1/1) ...
[2024-11-03 01:05:13,940 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 01:05:13,940 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:13" (1/1) ...
[2024-11-03 01:05:13,941 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:13" (1/1) ...
[2024-11-03 01:05:13,959 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:13" (1/1) ...
[2024-11-03 01:05:13,962 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:13" (1/1) ...
[2024-11-03 01:05:13,965 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:13" (1/1) ...
[2024-11-03 01:05:13,967 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:13" (1/1) ...
[2024-11-03 01:05:13,973 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:05:13,974 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:05:13,974 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:05:13,974 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:05:13,975 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:13" (1/1) ...
[2024-11-03 01:05:13,983 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:05:13,998 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:05:14,015 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 01:05:14,018 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 01:05:14,046 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:05:14,046 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:05:14,046 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:05:14,046 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:05:14,046 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:05:14,046 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:05:14,152 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:05:14,154 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:05:19,210 INFO  L?                        ?]: Removed 24 outVars from TransFormulas that were not future-live.
[2024-11-03 01:05:19,211 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:05:19,230 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:05:19,231 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:05:19,231 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:05:19 BoogieIcfgContainer
[2024-11-03 01:05:19,231 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:05:19,234 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:05:19,234 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:05:19,237 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:05:19,237 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:05:13" (1/3) ...
[2024-11-03 01:05:19,238 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315948d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:05:19, skipping insertion in model container
[2024-11-03 01:05:19,238 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:05:13" (2/3) ...
[2024-11-03 01:05:19,239 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315948d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:05:19, skipping insertion in model container
[2024-11-03 01:05:19,239 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:05:19" (3/3) ...
[2024-11-03 01:05:19,241 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-94.i
[2024-11-03 01:05:19,253 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:05:19,253 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:05:19,303 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:05:19,308 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;@16a2e22, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:05:19,308 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:05:19,313 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 86 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 57 states have internal predecessors, (80), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-03 01:05:19,324 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2024-11-03 01:05:19,324 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:05:19,325 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:19,325 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:05:19,330 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:05:19,331 INFO  L85        PathProgramCache]: Analyzing trace with hash -1612450964, now seen corresponding path program 1 times
[2024-11-03 01:05:19,339 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:05:19,340 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424623068]
[2024-11-03 01:05:19,340 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:05:19,342 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:05:19,342 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:05:19,345 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 01:05:19,347 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 01:05:19,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:05:19,973 INFO  L255         TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:05:19,983 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:05:20,062 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked.
[2024-11-03 01:05:20,062 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:05:20,497 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked.
[2024-11-03 01:05:20,498 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:05:20,498 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424623068]
[2024-11-03 01:05:20,499 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1424623068] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:05:20,501 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:05:20,501 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:05:20,504 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154204755]
[2024-11-03 01:05:20,504 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:05:20,510 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:05:20,510 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:05:20,534 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:05:20,535 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:05:20,537 INFO  L87              Difference]: Start difference. First operand  has 86 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 57 states have internal predecessors, (80), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand  has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27)
[2024-11-03 01:05:20,562 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:05:20,562 INFO  L93              Difference]: Finished difference Result 165 states and 289 transitions.
[2024-11-03 01:05:20,563 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:05:20,564 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176
[2024-11-03 01:05:20,565 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:05:20,571 INFO  L225             Difference]: With dead ends: 165
[2024-11-03 01:05:20,572 INFO  L226             Difference]: Without dead ends: 82
[2024-11-03 01:05:20,575 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 350 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 01:05:20,578 INFO  L432           NwaCegarLoop]: 127 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, 127 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 01:05:20,579 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:05:20,591 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2024-11-03 01:05:20,612 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82.
[2024-11-03 01:05:20,613 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82 states, 53 states have (on average 1.3773584905660377) internal successors, (73), 53 states have internal predecessors, (73), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27)
[2024-11-03 01:05:20,615 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 127 transitions.
[2024-11-03 01:05:20,617 INFO  L78                 Accepts]: Start accepts. Automaton has 82 states and 127 transitions. Word has length 176
[2024-11-03 01:05:20,617 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:05:20,618 INFO  L471      AbstractCegarLoop]: Abstraction has 82 states and 127 transitions.
[2024-11-03 01:05:20,618 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27)
[2024-11-03 01:05:20,618 INFO  L276                IsEmpty]: Start isEmpty. Operand 82 states and 127 transitions.
[2024-11-03 01:05:20,621 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2024-11-03 01:05:20,621 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:05:20,621 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:20,628 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0
[2024-11-03 01:05:20,822 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 01:05:20,823 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:05:20,823 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:05:20,824 INFO  L85        PathProgramCache]: Analyzing trace with hash -1618146258, now seen corresponding path program 1 times
[2024-11-03 01:05:20,824 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:05:20,824 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674991117]
[2024-11-03 01:05:20,824 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:05:20,824 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:05:20,824 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:05:20,826 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 01:05:20,827 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 01:05:21,373 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:05:21,387 INFO  L255         TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 01:05:21,394 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:05:22,637 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2024-11-03 01:05:22,638 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:05:24,043 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2024-11-03 01:05:24,045 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:05:24,046 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674991117]
[2024-11-03 01:05:24,046 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [674991117] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:05:24,046 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:05:24,047 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5
[2024-11-03 01:05:24,047 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36787372]
[2024-11-03 01:05:24,047 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:05:24,049 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-03 01:05:24,049 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:05:24,052 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-03 01:05:24,052 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-03 01:05:24,053 INFO  L87              Difference]: Start difference. First operand 82 states and 127 transitions. Second operand  has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54)
[2024-11-03 01:05:26,787 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:05:28,647 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:05:33,004 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:05:36,747 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:05:37,099 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:05:37,099 INFO  L93              Difference]: Finished difference Result 278 states and 432 transitions.
[2024-11-03 01:05:37,100 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 01:05:37,100 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 176
[2024-11-03 01:05:37,102 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:05:37,104 INFO  L225             Difference]: With dead ends: 278
[2024-11-03 01:05:37,108 INFO  L226             Difference]: Without dead ends: 199
[2024-11-03 01:05:37,110 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-03 01:05:37,110 INFO  L432           NwaCegarLoop]: 203 mSDtfsCounter, 163 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time
[2024-11-03 01:05:37,111 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 332 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time]
[2024-11-03 01:05:37,115 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 199 states.
[2024-11-03 01:05:37,154 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 157.
[2024-11-03 01:05:37,155 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 157 states, 100 states have (on average 1.35) internal successors, (135), 100 states have internal predecessors, (135), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54)
[2024-11-03 01:05:37,157 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 243 transitions.
[2024-11-03 01:05:37,157 INFO  L78                 Accepts]: Start accepts. Automaton has 157 states and 243 transitions. Word has length 176
[2024-11-03 01:05:37,162 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:05:37,162 INFO  L471      AbstractCegarLoop]: Abstraction has 157 states and 243 transitions.
[2024-11-03 01:05:37,162 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54)
[2024-11-03 01:05:37,163 INFO  L276                IsEmpty]: Start isEmpty. Operand 157 states and 243 transitions.
[2024-11-03 01:05:37,165 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2024-11-03 01:05:37,165 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:05:37,167 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:37,175 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 01:05:37,368 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:05:37,369 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:05:37,369 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:05:37,369 INFO  L85        PathProgramCache]: Analyzing trace with hash -1195444432, now seen corresponding path program 1 times
[2024-11-03 01:05:37,370 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:05:37,370 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911899042]
[2024-11-03 01:05:37,370 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:05:37,370 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:05:37,370 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:05:37,373 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:05:37,374 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 01:05:39,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:05:39,435 INFO  L255         TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 01:05:39,444 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:05:39,534 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2024-11-03 01:05:39,534 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:05:40,129 INFO  L134       CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked.
[2024-11-03 01:05:40,130 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:05:40,130 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911899042]
[2024-11-03 01:05:40,130 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1911899042] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:05:40,130 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:05:40,130 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2024-11-03 01:05:40,131 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734264208]
[2024-11-03 01:05:40,131 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:05:40,131 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-03 01:05:40,132 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:05:40,132 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-03 01:05:40,133 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-03 01:05:40,133 INFO  L87              Difference]: Start difference. First operand 157 states and 243 transitions. Second operand  has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2024-11-03 01:05:43,341 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:05:43,949 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:05:43,950 INFO  L93              Difference]: Finished difference Result 346 states and 532 transitions.
[2024-11-03 01:05:43,950 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 01:05:43,951 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176
[2024-11-03 01:05:43,951 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:05:43,954 INFO  L225             Difference]: With dead ends: 346
[2024-11-03 01:05:43,954 INFO  L226             Difference]: Without dead ends: 192
[2024-11-03 01:05:43,955 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 01:05:43,956 INFO  L432           NwaCegarLoop]: 162 mSDtfsCounter, 77 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2024-11-03 01:05:43,958 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 578 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2024-11-03 01:05:43,959 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 192 states.
[2024-11-03 01:05:43,997 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191.
[2024-11-03 01:05:43,998 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 191 states, 116 states have (on average 1.2844827586206897) internal successors, (149), 117 states have internal predecessors, (149), 70 states have call successors, (70), 4 states have call predecessors, (70), 4 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70)
[2024-11-03 01:05:44,000 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 289 transitions.
[2024-11-03 01:05:44,001 INFO  L78                 Accepts]: Start accepts. Automaton has 191 states and 289 transitions. Word has length 176
[2024-11-03 01:05:44,005 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:05:44,005 INFO  L471      AbstractCegarLoop]: Abstraction has 191 states and 289 transitions.
[2024-11-03 01:05:44,005 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)
[2024-11-03 01:05:44,006 INFO  L276                IsEmpty]: Start isEmpty. Operand 191 states and 289 transitions.
[2024-11-03 01:05:44,008 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2024-11-03 01:05:44,008 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:05:44,012 INFO  L215           NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:44,033 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 01:05:44,212 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:05:44,213 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:05:44,214 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:05:44,214 INFO  L85        PathProgramCache]: Analyzing trace with hash 346685416, now seen corresponding path program 1 times
[2024-11-03 01:05:44,214 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:05:44,214 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093063681]
[2024-11-03 01:05:44,214 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:05:44,214 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:05:44,215 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:05:44,216 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:05:44,217 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 01:05:46,198 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:05:46,225 INFO  L255         TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 46 conjuncts are in the unsatisfiable core
[2024-11-03 01:05:46,243 INFO  L278         TraceCheckSpWp]: Computing forward predicates...