/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-7.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:15:28,670 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:15:28,755 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-02 21:15:28,761 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:15:28,761 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:15:28,789 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:15:28,789 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:15:28,790 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:15:28,790 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:15:28,791 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:15:28,792 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:15:28,792 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:15:28,794 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:15:28,794 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:15:28,794 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:15:28,794 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:15:28,795 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:15:28,795 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:15:28,795 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:15:28,795 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:15:28,796 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:15:28,800 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:15:28,800 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:15:28,800 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:15:28,800 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:15:28,800 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:15:28,801 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:15:28,801 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:15:28,801 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:15:28,801 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:15:28,802 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:15:28,802 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:15:28,802 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:15:28,802 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:15:28,802 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:15:28,803 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:15:28,803 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:15:28,803 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:15:28,803 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:15:28,803 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:15:28,804 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:15:28,804 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:15:28,804 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:15:28,804 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:15:28,804 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:15:29,025 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:15:29,051 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:15:29,056 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:15:29,057 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:15:29,057 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:15:29,059 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-7.i
[2024-11-02 21:15:30,520 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:15:30,727 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:15:30,728 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-7.i
[2024-11-02 21:15:30,735 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e1c5fe32/570757162f2a46d6a3e57704af36026d/FLAG28c30bd2e
[2024-11-02 21:15:31,085 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e1c5fe32/570757162f2a46d6a3e57704af36026d
[2024-11-02 21:15:31,087 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:15:31,088 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:15:31,090 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:15:31,090 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:15:31,094 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:15:31,095 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:15:31" (1/1) ...
[2024-11-02 21:15:31,096 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2203b64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:15:31, skipping insertion in model container
[2024-11-02 21:15:31,096 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:15:31" (1/1) ...
[2024-11-02 21:15:31,122 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:15:31,267 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_floatingpointinfluence_has-floats_file-7.i[916,929]
[2024-11-02 21:15:31,314 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:15:31,338 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:15:31,352 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_floatingpointinfluence_has-floats_file-7.i[916,929]
[2024-11-02 21:15:31,379 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:15:31,403 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:15:31,405 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:15:31 WrapperNode
[2024-11-02 21:15:31,405 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:15:31,406 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:15:31,407 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:15:31,407 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:15:31,413 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:15:31" (1/1) ...
[2024-11-02 21:15:31,432 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:15:31" (1/1) ...
[2024-11-02 21:15:31,463 INFO  L138                Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 97
[2024-11-02 21:15:31,464 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:15:31,465 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:15:31,465 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:15:31,465 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:15:31,475 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:15:31" (1/1) ...
[2024-11-02 21:15:31,475 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:15:31" (1/1) ...
[2024-11-02 21:15:31,479 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:15:31" (1/1) ...
[2024-11-02 21:15:31,499 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].
[2024-11-02 21:15:31,500 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:15:31" (1/1) ...
[2024-11-02 21:15:31,500 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:15:31" (1/1) ...
[2024-11-02 21:15:31,511 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:15:31" (1/1) ...
[2024-11-02 21:15:31,517 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:15:31" (1/1) ...
[2024-11-02 21:15:31,519 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:15:31" (1/1) ...
[2024-11-02 21:15:31,520 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:15:31" (1/1) ...
[2024-11-02 21:15:31,529 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:15:31,530 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:15:31,531 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:15:31,531 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:15:31,532 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:15:31" (1/1) ...
[2024-11-02 21:15:31,542 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:15:31,552 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:15:31,569 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)
[2024-11-02 21:15:31,574 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
[2024-11-02 21:15:31,649 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:15:31,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:15:31,650 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:15:31,650 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:15:31,650 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:15:31,650 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:15:31,750 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:15:31,752 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:15:32,671 INFO  L?                        ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-02 21:15:32,671 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:15:32,683 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:15:32,683 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:15:32,684 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:15:32 BoogieIcfgContainer
[2024-11-02 21:15:32,685 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:15:32,687 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:15:32,687 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:15:32,691 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:15:32,692 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:15:31" (1/3) ...
[2024-11-02 21:15:32,693 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eedfb5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:15:32, skipping insertion in model container
[2024-11-02 21:15:32,693 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:15:31" (2/3) ...
[2024-11-02 21:15:32,694 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eedfb5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:15:32, skipping insertion in model container
[2024-11-02 21:15:32,694 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:15:32" (3/3) ...
[2024-11-02 21:15:32,695 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-7.i
[2024-11-02 21:15:32,712 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:15:32,712 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:15:32,780 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:15:32,787 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;@742840f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:15:32,789 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:15:32,795 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 45 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-02 21:15:32,805 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-11-02 21:15:32,805 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:15:32,806 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:15:32,807 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:15:32,814 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:15:32,815 INFO  L85        PathProgramCache]: Analyzing trace with hash 533118968, now seen corresponding path program 1 times
[2024-11-02 21:15:32,823 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:15:32,823 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128915840]
[2024-11-02 21:15:32,823 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:15:32,825 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:15:32,826 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:15:32,829 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:15:32,831 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-02 21:15:33,035 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:15:33,048 INFO  L255         TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:15:33,055 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:15:33,085 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked.
[2024-11-02 21:15:33,085 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:15:33,160 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked.
[2024-11-02 21:15:33,162 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:15:33,162 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [128915840]
[2024-11-02 21:15:33,162 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [128915840] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:15:33,162 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:15:33,163 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:15:33,165 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736573297]
[2024-11-02 21:15:33,165 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:15:33,169 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:15:33,169 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:15:33,192 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:15:33,193 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:15:33,194 INFO  L87              Difference]: Start difference. First operand  has 45 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand  has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-02 21:15:33,219 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:15:33,219 INFO  L93              Difference]: Finished difference Result 83 states and 138 transitions.
[2024-11-02 21:15:33,221 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:15:33,222 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79
[2024-11-02 21:15:33,222 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:15:33,230 INFO  L225             Difference]: With dead ends: 83
[2024-11-02 21:15:33,231 INFO  L226             Difference]: Without dead ends: 41
[2024-11-02 21:15:33,234 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:15:33,240 INFO  L432           NwaCegarLoop]: 58 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, 58 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
[2024-11-02 21:15:33,241 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:15:33,257 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2024-11-02 21:15:33,279 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2024-11-02 21:15:33,281 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-02 21:15:33,282 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions.
[2024-11-02 21:15:33,286 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 79
[2024-11-02 21:15:33,287 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:15:33,287 INFO  L471      AbstractCegarLoop]: Abstraction has 41 states and 58 transitions.
[2024-11-02 21:15:33,288 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12)
[2024-11-02 21:15:33,288 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions.
[2024-11-02 21:15:33,291 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-11-02 21:15:33,292 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:15:33,292 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:15:33,313 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-02 21:15:33,492 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:15:33,493 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:15:33,494 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:15:33,494 INFO  L85        PathProgramCache]: Analyzing trace with hash 1417074868, now seen corresponding path program 1 times
[2024-11-02 21:15:33,495 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:15:33,495 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297051681]
[2024-11-02 21:15:33,495 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:15:33,495 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:15:33,495 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:15:33,499 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:15:33,502 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-02 21:15:33,642 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:15:33,660 INFO  L255         TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-02 21:15:33,675 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:15:41,210 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 36 proven. 24 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked.
[2024-11-02 21:15:41,211 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:16:02,319 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked.
[2024-11-02 21:16:02,319 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:16:02,320 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297051681]
[2024-11-02 21:16:02,320 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1297051681] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:16:02,320 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:16:02,320 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18
[2024-11-02 21:16:02,320 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773726356]
[2024-11-02 21:16:02,320 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:16:02,322 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-02 21:16:02,322 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:16:02,323 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-02 21:16:02,323 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306
[2024-11-02 21:16:02,323 INFO  L87              Difference]: Start difference. First operand 41 states and 58 transitions. Second operand  has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12)
[2024-11-02 21:16:24,628 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-02 21:16:31,647 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:16:31,647 INFO  L93              Difference]: Finished difference Result 71 states and 89 transitions.
[2024-11-02 21:16:31,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-02 21:16:31,661 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 79
[2024-11-02 21:16:31,662 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:16:31,663 INFO  L225             Difference]: With dead ends: 71
[2024-11-02 21:16:31,664 INFO  L226             Difference]: Without dead ends: 69
[2024-11-02 21:16:31,664 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380
[2024-11-02 21:16:31,665 INFO  L432           NwaCegarLoop]: 52 mSDtfsCounter, 91 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time
[2024-11-02 21:16:31,666 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 184 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 21.4s Time]
[2024-11-02 21:16:31,667 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 69 states.
[2024-11-02 21:16:31,678 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 57.
[2024-11-02 21:16:31,678 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 57 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 40 states have internal predecessors, (46), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-02 21:16:31,679 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions.
[2024-11-02 21:16:31,680 INFO  L78                 Accepts]: Start accepts. Automaton has 57 states and 74 transitions. Word has length 79
[2024-11-02 21:16:31,680 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:16:31,680 INFO  L471      AbstractCegarLoop]: Abstraction has 57 states and 74 transitions.
[2024-11-02 21:16:31,681 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12)
[2024-11-02 21:16:31,681 INFO  L276                IsEmpty]: Start isEmpty. Operand 57 states and 74 transitions.
[2024-11-02 21:16:31,683 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2024-11-02 21:16:31,683 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:16:31,683 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:16:31,710 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-02 21:16:31,884 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:16:31,885 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:16:31,885 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:16:31,885 INFO  L85        PathProgramCache]: Analyzing trace with hash 574159787, now seen corresponding path program 1 times
[2024-11-02 21:16:31,886 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:16:31,886 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627548137]
[2024-11-02 21:16:31,886 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:16:31,886 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:16:31,886 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:16:31,888 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:16:31,890 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-02 21:16:32,033 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:16:32,052 INFO  L255         TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 21:16:32,055 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:16:32,077 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2024-11-02 21:16:32,077 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:16:32,208 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2024-11-02 21:16:32,209 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:16:32,209 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627548137]
[2024-11-02 21:16:32,209 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1627548137] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:16:32,209 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:16:32,209 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-02 21:16:32,209 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13152705]
[2024-11-02 21:16:32,210 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:16:32,210 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 21:16:32,210 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:16:32,211 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 21:16:32,211 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:16:32,211 INFO  L87              Difference]: Start difference. First operand 57 states and 74 transitions. Second operand  has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12)
[2024-11-02 21:16:32,358 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:16:32,358 INFO  L93              Difference]: Finished difference Result 128 states and 163 transitions.
[2024-11-02 21:16:32,364 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 21:16:32,364 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 80
[2024-11-02 21:16:32,365 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:16:32,367 INFO  L225             Difference]: With dead ends: 128
[2024-11-02 21:16:32,367 INFO  L226             Difference]: Without dead ends: 79
[2024-11-02 21:16:32,368 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:16:32,369 INFO  L432           NwaCegarLoop]: 56 mSDtfsCounter, 22 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-02 21:16:32,369 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 101 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-02 21:16:32,370 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 79 states.
[2024-11-02 21:16:32,382 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78.
[2024-11-02 21:16:32,382 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 56 states have internal predecessors, (61), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-02 21:16:32,384 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 97 transitions.
[2024-11-02 21:16:32,384 INFO  L78                 Accepts]: Start accepts. Automaton has 78 states and 97 transitions. Word has length 80
[2024-11-02 21:16:32,384 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:16:32,385 INFO  L471      AbstractCegarLoop]: Abstraction has 78 states and 97 transitions.
[2024-11-02 21:16:32,385 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12)
[2024-11-02 21:16:32,385 INFO  L276                IsEmpty]: Start isEmpty. Operand 78 states and 97 transitions.
[2024-11-02 21:16:32,386 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2024-11-02 21:16:32,386 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:16:32,386 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:16:32,407 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-02 21:16:32,587 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:16:32,588 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:16:32,589 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:16:32,589 INFO  L85        PathProgramCache]: Analyzing trace with hash -155695824, now seen corresponding path program 1 times
[2024-11-02 21:16:32,589 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:16:32,589 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301787005]
[2024-11-02 21:16:32,589 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:16:32,590 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:16:32,590 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:16:32,591 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:16:32,593 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-02 21:16:32,716 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:16:32,733 INFO  L255         TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-02 21:16:32,736 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:16:39,731 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 36 proven. 24 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked.
[2024-11-02 21:16:39,731 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:16:49,338 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked.
[2024-11-02 21:16:49,339 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:16:49,339 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301787005]
[2024-11-02 21:16:49,339 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1301787005] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:16:49,339 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:16:49,339 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18
[2024-11-02 21:16:49,340 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459074858]
[2024-11-02 21:16:49,340 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:16:49,340 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-02 21:16:49,340 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:16:49,341 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-02 21:16:49,341 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306
[2024-11-02 21:16:49,342 INFO  L87              Difference]: Start difference. First operand 78 states and 97 transitions. Second operand  has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12)
[2024-11-02 21:17:03,538 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:17:03,538 INFO  L93              Difference]: Finished difference Result 178 states and 219 transitions.
[2024-11-02 21:17:03,543 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-02 21:17:03,544 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 81
[2024-11-02 21:17:03,544 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:17:03,545 INFO  L225             Difference]: With dead ends: 178
[2024-11-02 21:17:03,545 INFO  L226             Difference]: Without dead ends: 108
[2024-11-02 21:17:03,546 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380
[2024-11-02 21:17:03,547 INFO  L432           NwaCegarLoop]: 64 mSDtfsCounter, 166 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time
[2024-11-02 21:17:03,548 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 217 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time]
[2024-11-02 21:17:03,548 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 108 states.
[2024-11-02 21:17:03,563 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 92.
[2024-11-02 21:17:03,564 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 92 states, 66 states have (on average 1.1363636363636365) internal successors, (75), 69 states have internal predecessors, (75), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19)
[2024-11-02 21:17:03,565 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 113 transitions.
[2024-11-02 21:17:03,565 INFO  L78                 Accepts]: Start accepts. Automaton has 92 states and 113 transitions. Word has length 81
[2024-11-02 21:17:03,566 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:17:03,566 INFO  L471      AbstractCegarLoop]: Abstraction has 92 states and 113 transitions.
[2024-11-02 21:17:03,566 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12)
[2024-11-02 21:17:03,566 INFO  L276                IsEmpty]: Start isEmpty. Operand 92 states and 113 transitions.
[2024-11-02 21:17:03,567 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2024-11-02 21:17:03,567 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:17:03,568 INFO  L215           NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:17:03,596 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-02 21:17:03,768 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:17:03,769 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:17:03,769 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:17:03,769 INFO  L85        PathProgramCache]: Analyzing trace with hash 1619311538, now seen corresponding path program 1 times
[2024-11-02 21:17:03,769 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:17:03,770 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300556249]
[2024-11-02 21:17:03,770 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:17:03,770 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:17:03,770 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:17:03,772 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:17:03,773 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-02 21:17:03,879 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:17:03,891 INFO  L255         TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-02 21:17:03,894 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:17:08,056 INFO  L134       CoverageAnalysis]: Checked inductivity of 264 backedges. 36 proven. 24 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked.
[2024-11-02 21:17:08,057 INFO  L311         TraceCheckSpWp]: Computing backward predicates...