/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_no-floats_file-5.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:25:05,282 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:25:05,325 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 21:25:05,328 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:25:05,328 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:25:05,341 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:25:05,341 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:25:05,341 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:25:05,342 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:25:05,342 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:25:05,342 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:25:05,342 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:25:05,343 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:25:05,343 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:25:05,343 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:25:05,343 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:25:05,344 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:25:05,344 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:25:05,344 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:25:05,344 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:25:05,345 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:25:05,345 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:25:05,345 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:25:05,345 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:25:05,346 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:25:05,346 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:25:05,346 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:25:05,346 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:25:05,346 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:25:05,346 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:25:05,347 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:25:05,347 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:25:05,347 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:25:05,347 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:25:05,347 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:25:05,348 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:25:05,348 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:25:05,348 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:25:05,348 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:25:05,348 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:25:05,348 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:25:05,349 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:25:05,349 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:25:05,349 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:25:05,349 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:25:05,508 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:25:05,522 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:25:05,523 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:25:05,524 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:25:05,526 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:25:05,527 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-5.i
[2024-11-02 21:25:06,718 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:25:06,873 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:25:06,874 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-5.i
[2024-11-02 21:25:06,879 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fa7c37c2/c81debb3ffb24587bb97b3db8ece4178/FLAGb1d6817ff
[2024-11-02 21:25:07,294 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fa7c37c2/c81debb3ffb24587bb97b3db8ece4178
[2024-11-02 21:25:07,296 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:25:07,298 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:25:07,299 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:25:07,299 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:25:07,305 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:25:07,305 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:25:07" (1/1) ...
[2024-11-02 21:25:07,306 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c3b5f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:25:07, skipping insertion in model container
[2024-11-02 21:25:07,306 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:25:07" (1/1) ...
[2024-11-02 21:25:07,328 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:25:07,451 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_no-floats_file-5.i[915,928]
[2024-11-02 21:25:07,482 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:25:07,493 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:25:07,502 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_no-floats_file-5.i[915,928]
[2024-11-02 21:25:07,515 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:25:07,536 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:25:07,537 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:25:07 WrapperNode
[2024-11-02 21:25:07,537 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:25:07,538 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:25:07,538 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:25:07,538 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:25:07,545 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:25:07" (1/1) ...
[2024-11-02 21:25:07,552 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:25:07" (1/1) ...
[2024-11-02 21:25:07,571 INFO  L138                Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116
[2024-11-02 21:25:07,572 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:25:07,572 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:25:07,572 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:25:07,572 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:25:07,580 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:25:07" (1/1) ...
[2024-11-02 21:25:07,581 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:25:07" (1/1) ...
[2024-11-02 21:25:07,584 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:25:07" (1/1) ...
[2024-11-02 21:25:07,593 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 21:25:07,594 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:25:07" (1/1) ...
[2024-11-02 21:25:07,594 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:25:07" (1/1) ...
[2024-11-02 21:25:07,599 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:25:07" (1/1) ...
[2024-11-02 21:25:07,601 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:25:07" (1/1) ...
[2024-11-02 21:25:07,602 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:25:07" (1/1) ...
[2024-11-02 21:25:07,603 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:25:07" (1/1) ...
[2024-11-02 21:25:07,605 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:25:07,605 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:25:07,606 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:25:07,606 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:25:07,606 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:25:07" (1/1) ...
[2024-11-02 21:25:07,610 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:25:07,617 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:25:07,631 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 21:25:07,633 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 21:25:07,653 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:25:07,653 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:25:07,653 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:25:07,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:25:07,653 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:25:07,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:25:07,726 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:25:07,728 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:25:08,012 INFO  L?                        ?]: Removed 14 outVars from TransFormulas that were not future-live.
[2024-11-02 21:25:08,012 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:25:08,024 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:25:08,024 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:25:08,025 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:25:08 BoogieIcfgContainer
[2024-11-02 21:25:08,025 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:25:08,028 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:25:08,028 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:25:08,031 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:25:08,031 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:25:07" (1/3) ...
[2024-11-02 21:25:08,032 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43405357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:25:08, skipping insertion in model container
[2024-11-02 21:25:08,032 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:25:07" (2/3) ...
[2024-11-02 21:25:08,032 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43405357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:25:08, skipping insertion in model container
[2024-11-02 21:25:08,033 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:25:08" (3/3) ...
[2024-11-02 21:25:08,034 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-5.i
[2024-11-02 21:25:08,046 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:25:08,046 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:25:08,113 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:25:08,117 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;@da5cdf1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:25:08,118 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:25:08,121 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 55 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-02 21:25:08,128 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2024-11-02 21:25:08,129 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:25:08,129 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:25:08,130 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:25:08,133 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:25:08,133 INFO  L85        PathProgramCache]: Analyzing trace with hash 929324851, now seen corresponding path program 1 times
[2024-11-02 21:25:08,139 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:25:08,139 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678067033]
[2024-11-02 21:25:08,139 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:25:08,141 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:25:08,141 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:25:08,143 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 21:25:08,144 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 21:25:08,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:25:08,290 INFO  L255         TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:25:08,299 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:25:08,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked.
[2024-11-02 21:25:08,333 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:25:08,442 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked.
[2024-11-02 21:25:08,443 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:25:08,443 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678067033]
[2024-11-02 21:25:08,444 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1678067033] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:25:08,445 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:25:08,445 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:25:08,447 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764364454]
[2024-11-02 21:25:08,447 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:25:08,451 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:25:08,451 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:25:08,472 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:25:08,473 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:25:08,475 INFO  L87              Difference]: Start difference. First operand  has 55 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20)
[2024-11-02 21:25:08,493 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:25:08,494 INFO  L93              Difference]: Finished difference Result 103 states and 178 transitions.
[2024-11-02 21:25:08,495 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:25:08,497 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 123
[2024-11-02 21:25:08,497 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:25:08,502 INFO  L225             Difference]: With dead ends: 103
[2024-11-02 21:25:08,503 INFO  L226             Difference]: Without dead ends: 51
[2024-11-02 21:25:08,505 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 244 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 21:25:08,508 INFO  L432           NwaCegarLoop]: 75 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, 75 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 21:25:08,509 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:25:08,520 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51 states.
[2024-11-02 21:25:08,538 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51.
[2024-11-02 21:25:08,541 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 51 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-02 21:25:08,543 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 75 transitions.
[2024-11-02 21:25:08,545 INFO  L78                 Accepts]: Start accepts. Automaton has 51 states and 75 transitions. Word has length 123
[2024-11-02 21:25:08,545 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:25:08,546 INFO  L471      AbstractCegarLoop]: Abstraction has 51 states and 75 transitions.
[2024-11-02 21:25:08,547 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20)
[2024-11-02 21:25:08,547 INFO  L276                IsEmpty]: Start isEmpty. Operand 51 states and 75 transitions.
[2024-11-02 21:25:08,550 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2024-11-02 21:25:08,550 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:25:08,551 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:25:08,569 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-02 21:25:08,755 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 21:25:08,756 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:25:08,756 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:25:08,757 INFO  L85        PathProgramCache]: Analyzing trace with hash 1217728759, now seen corresponding path program 1 times
[2024-11-02 21:25:08,757 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:25:08,757 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957028471]
[2024-11-02 21:25:08,757 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:25:08,757 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:25:08,757 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:25:08,760 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 21:25:08,762 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 21:25:08,879 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:25:08,886 INFO  L255         TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-02 21:25:08,902 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:25:15,157 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked.
[2024-11-02 21:25:15,158 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:25:37,268 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-02 21:25:37,269 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:25:37,269 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957028471]
[2024-11-02 21:25:37,269 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [957028471] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:25:37,269 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:25:37,269 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 17
[2024-11-02 21:25:37,269 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202746965]
[2024-11-02 21:25:37,269 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:25:37,271 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 21:25:37,271 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:25:37,271 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 21:25:37,272 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272
[2024-11-02 21:25:37,272 INFO  L87              Difference]: Start difference. First operand 51 states and 75 transitions. Second operand  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-02 21:25:52,811 WARN  L286               SmtUtils]: Spent 8.39s on a formula simplification. DAG size of input: 109 DAG size of output: 131 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-02 21:26:05,627 WARN  L286               SmtUtils]: Spent 10.73s on a formula simplification. DAG size of input: 112 DAG size of output: 134 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-02 21:26:19,318 WARN  L286               SmtUtils]: Spent 10.98s on a formula simplification. DAG size of input: 112 DAG size of output: 134 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-02 21:26:30,819 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-02 21:26:32,154 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:26:32,154 INFO  L93              Difference]: Finished difference Result 113 states and 149 transitions.
[2024-11-02 21:26:32,171 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-02 21:26:32,172 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 123
[2024-11-02 21:26:32,172 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:26:32,174 INFO  L225             Difference]: With dead ends: 113
[2024-11-02 21:26:32,174 INFO  L226             Difference]: Without dead ends: 111
[2024-11-02 21:26:32,174 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 44.6s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380
[2024-11-02 21:26:32,175 INFO  L432           NwaCegarLoop]: 80 mSDtfsCounter, 81 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time
[2024-11-02 21:26:32,176 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 388 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 19.9s Time]
[2024-11-02 21:26:32,176 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 111 states.
[2024-11-02 21:26:32,199 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 76.
[2024-11-02 21:26:32,200 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 76 states, 49 states have (on average 1.2040816326530612) internal successors, (59), 50 states have internal predecessors, (59), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-02 21:26:32,202 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 107 transitions.
[2024-11-02 21:26:32,203 INFO  L78                 Accepts]: Start accepts. Automaton has 76 states and 107 transitions. Word has length 123
[2024-11-02 21:26:32,203 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:26:32,203 INFO  L471      AbstractCegarLoop]: Abstraction has 76 states and 107 transitions.
[2024-11-02 21:26:32,204 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-02 21:26:32,204 INFO  L276                IsEmpty]: Start isEmpty. Operand 76 states and 107 transitions.
[2024-11-02 21:26:32,205 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2024-11-02 21:26:32,205 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:26:32,205 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:26:32,222 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-02 21:26:32,407 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 21:26:32,408 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:26:32,409 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:26:32,409 INFO  L85        PathProgramCache]: Analyzing trace with hash 1274987061, now seen corresponding path program 1 times
[2024-11-02 21:26:32,409 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:26:32,409 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973851154]
[2024-11-02 21:26:32,409 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:26:32,409 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:26:32,410 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:26:32,413 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 21:26:32,415 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 21:26:32,505 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:26:32,512 INFO  L255         TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 21:26:32,515 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:26:32,559 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-02 21:26:32,559 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:26:33,001 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-02 21:26:33,002 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:26:33,002 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973851154]
[2024-11-02 21:26:33,002 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [973851154] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:26:33,002 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:26:33,002 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2024-11-02 21:26:33,003 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117729396]
[2024-11-02 21:26:33,003 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:26:33,003 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-02 21:26:33,003 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:26:33,004 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-02 21:26:33,004 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-02 21:26:33,004 INFO  L87              Difference]: Start difference. First operand 76 states and 107 transitions. Second operand  has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-02 21:26:33,096 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:26:33,096 INFO  L93              Difference]: Finished difference Result 149 states and 211 transitions.
[2024-11-02 21:26:33,103 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 21:26:33,103 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 123
[2024-11-02 21:26:33,104 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:26:33,106 INFO  L225             Difference]: With dead ends: 149
[2024-11-02 21:26:33,109 INFO  L226             Difference]: Without dead ends: 76
[2024-11-02 21:26:33,110 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-02 21:26:33,111 INFO  L432           NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-02 21:26:33,111 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 213 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-02 21:26:33,111 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 76 states.
[2024-11-02 21:26:33,130 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76.
[2024-11-02 21:26:33,130 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 76 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 50 states have internal predecessors, (56), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-02 21:26:33,131 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 104 transitions.
[2024-11-02 21:26:33,132 INFO  L78                 Accepts]: Start accepts. Automaton has 76 states and 104 transitions. Word has length 123
[2024-11-02 21:26:33,132 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:26:33,132 INFO  L471      AbstractCegarLoop]: Abstraction has 76 states and 104 transitions.
[2024-11-02 21:26:33,132 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-02 21:26:33,133 INFO  L276                IsEmpty]: Start isEmpty. Operand 76 states and 104 transitions.
[2024-11-02 21:26:33,136 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2024-11-02 21:26:33,136 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:26:33,136 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:26:33,162 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-02 21:26:33,336 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 21:26:33,337 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:26:33,338 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:26:33,338 INFO  L85        PathProgramCache]: Analyzing trace with hash 408382133, now seen corresponding path program 1 times
[2024-11-02 21:26:33,338 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:26:33,338 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159281481]
[2024-11-02 21:26:33,338 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:26:33,338 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:26:33,339 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:26:33,340 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 21:26:33,341 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 21:26:33,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:26:33,420 INFO  L255         TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-02 21:26:33,423 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:26:43,649 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked.
[2024-11-02 21:26:43,650 INFO  L311         TraceCheckSpWp]: Computing backward predicates...