./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/NO_21.c --full-output --architecture 64bit


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


Checking for overflows
Using default analysis
Version 3061b6dc
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-restricted-15/NO_21.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 09b58293612eb320ba1daf9ca7fe4947dbbcf9de2baf65b6860d058db21da006
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-19 10:13:22,350 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-19 10:13:22,437 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2024-11-19 10:13:22,444 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-19 10:13:22,445 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-19 10:13:22,486 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-19 10:13:22,486 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-19 10:13:22,487 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-19 10:13:22,487 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-19 10:13:22,488 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-19 10:13:22,488 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-19 10:13:22,488 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-19 10:13:22,489 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-19 10:13:22,489 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-19 10:13:22,489 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-19 10:13:22,490 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-19 10:13:22,490 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-19 10:13:22,491 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-19 10:13:22,491 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-19 10:13:22,491 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-19 10:13:22,492 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-19 10:13:22,495 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-19 10:13:22,496 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-19 10:13:22,496 INFO  L153        SettingsManager]:  * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-19 10:13:22,496 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2024-11-19 10:13:22,497 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-19 10:13:22,497 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-19 10:13:22,497 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-19 10:13:22,497 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-19 10:13:22,498 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-19 10:13:22,498 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-19 10:13:22,498 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-19 10:13:22,498 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-19 10:13:22,498 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-19 10:13:22,499 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-19 10:13:22,499 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-19 10:13:22,499 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-19 10:13:22,499 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-19 10:13:22,500 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-19 10:13:22,500 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-19 10:13:22,500 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-19 10:13:22,501 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.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09b58293612eb320ba1daf9ca7fe4947dbbcf9de2baf65b6860d058db21da006
[2024-11-19 10:13:22,775 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-19 10:13:22,800 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-19 10:13:22,804 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-19 10:13:22,805 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-19 10:13:22,806 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-19 10:13:22,807 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/NO_21.c
[2024-11-19 10:13:24,221 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-19 10:13:24,412 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-19 10:13:24,413 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/NO_21.c
[2024-11-19 10:13:24,418 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36f8d134b/b73758ceff1d4e5cbf3f9a4dbb3a1491/FLAG0473e2846
[2024-11-19 10:13:24,431 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36f8d134b/b73758ceff1d4e5cbf3f9a4dbb3a1491
[2024-11-19 10:13:24,433 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-19 10:13:24,435 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-19 10:13:24,436 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-19 10:13:24,436 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-19 10:13:24,441 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-19 10:13:24,451 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:13:24" (1/1) ...
[2024-11-19 10:13:24,452 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa13d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:13:24, skipping insertion in model container
[2024-11-19 10:13:24,452 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:13:24" (1/1) ...
[2024-11-19 10:13:24,469 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-19 10:13:24,639 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-19 10:13:24,645 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-19 10:13:24,654 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-19 10:13:24,672 INFO  L204         MainTranslator]: Completed translation
[2024-11-19 10:13:24,672 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:13:24 WrapperNode
[2024-11-19 10:13:24,672 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-19 10:13:24,673 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-19 10:13:24,673 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-19 10:13:24,673 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-19 10:13:24,678 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:13:24" (1/1) ...
[2024-11-19 10:13:24,682 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:13:24" (1/1) ...
[2024-11-19 10:13:24,694 INFO  L138                Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16
[2024-11-19 10:13:24,695 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-19 10:13:24,695 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-19 10:13:24,695 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-19 10:13:24,695 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-19 10:13:24,703 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:13:24" (1/1) ...
[2024-11-19 10:13:24,704 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:13:24" (1/1) ...
[2024-11-19 10:13:24,704 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:13:24" (1/1) ...
[2024-11-19 10:13:24,708 INFO  L175           MemorySlicer]: No memory access in input program.
[2024-11-19 10:13:24,708 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:13:24" (1/1) ...
[2024-11-19 10:13:24,709 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:13:24" (1/1) ...
[2024-11-19 10:13:24,710 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:13:24" (1/1) ...
[2024-11-19 10:13:24,712 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:13:24" (1/1) ...
[2024-11-19 10:13:24,713 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:13:24" (1/1) ...
[2024-11-19 10:13:24,713 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:13:24" (1/1) ...
[2024-11-19 10:13:24,714 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-19 10:13:24,715 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-19 10:13:24,715 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-19 10:13:24,715 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-19 10:13:24,716 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:13:24" (1/1) ...
[2024-11-19 10:13:24,721 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-19 10:13:24,730 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-19 10:13:24,744 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)
[2024-11-19 10:13:24,755 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
[2024-11-19 10:13:24,792 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-19 10:13:24,792 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-19 10:13:24,849 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-19 10:13:24,850 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-19 10:13:24,915 INFO  L?                        ?]: Removed 7 outVars from TransFormulas that were not future-live.
[2024-11-19 10:13:24,915 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-19 10:13:24,928 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-19 10:13:24,928 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-19 10:13:24,928 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:13:24 BoogieIcfgContainer
[2024-11-19 10:13:24,929 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-19 10:13:24,931 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-19 10:13:24,931 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-19 10:13:24,934 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-19 10:13:24,934 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:13:24" (1/3) ...
[2024-11-19 10:13:24,935 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177b548a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:13:24, skipping insertion in model container
[2024-11-19 10:13:24,935 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:13:24" (2/3) ...
[2024-11-19 10:13:24,935 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177b548a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:13:24, skipping insertion in model container
[2024-11-19 10:13:24,935 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:13:24" (3/3) ...
[2024-11-19 10:13:24,937 INFO  L112   eAbstractionObserver]: Analyzing ICFG NO_21.c
[2024-11-19 10:13:24,955 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-19 10:13:24,955 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2024-11-19 10:13:25,001 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-19 10:13:25,008 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;@3695fcf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-19 10:13:25,008 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2024-11-19 10:13:25,012 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 15 states, 10 states have (on average 1.6) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 10:13:25,016 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-11-19 10:13:25,016 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 10:13:25,017 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-11-19 10:13:25,017 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2024-11-19 10:13:25,022 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 10:13:25,022 INFO  L85        PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times
[2024-11-19 10:13:25,029 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 10:13:25,029 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497824599]
[2024-11-19 10:13:25,029 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 10:13:25,030 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 10:13:25,121 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 10:13:25,198 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 10:13:25,199 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 10:13:25,199 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497824599]
[2024-11-19 10:13:25,200 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497824599] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 10:13:25,200 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 10:13:25,200 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 10:13:25,202 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519528124]
[2024-11-19 10:13:25,203 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 10:13:25,208 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 10:13:25,210 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 10:13:25,234 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 10:13:25,235 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 10:13:25,237 INFO  L87              Difference]: Start difference. First operand  has 15 states, 10 states have (on average 1.6) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 10:13:25,306 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 10:13:25,307 INFO  L93              Difference]: Finished difference Result 26 states and 30 transitions.
[2024-11-19 10:13:25,308 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 10:13:25,309 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4
[2024-11-19 10:13:25,310 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 10:13:25,317 INFO  L225             Difference]: With dead ends: 26
[2024-11-19 10:13:25,317 INFO  L226             Difference]: Without dead ends: 16
[2024-11-19 10:13:25,320 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 10:13:25,325 INFO  L432           NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-19 10:13:25,327 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-19 10:13:25,343 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2024-11-19 10:13:25,354 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15.
[2024-11-19 10:13:25,356 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 10:13:25,357 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions.
[2024-11-19 10:13:25,359 INFO  L78                 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 4
[2024-11-19 10:13:25,359 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 10:13:25,359 INFO  L471      AbstractCegarLoop]: Abstraction has 15 states and 16 transitions.
[2024-11-19 10:13:25,360 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 10:13:25,360 INFO  L276                IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions.
[2024-11-19 10:13:25,361 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-11-19 10:13:25,361 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 10:13:25,361 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-11-19 10:13:25,362 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-19 10:13:25,362 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2024-11-19 10:13:25,363 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 10:13:25,363 INFO  L85        PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times
[2024-11-19 10:13:25,364 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 10:13:25,364 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574978411]
[2024-11-19 10:13:25,364 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 10:13:25,364 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 10:13:25,372 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 10:13:25,399 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 10:13:25,399 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 10:13:25,400 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574978411]
[2024-11-19 10:13:25,400 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574978411] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 10:13:25,400 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 10:13:25,400 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-19 10:13:25,400 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744887237]
[2024-11-19 10:13:25,400 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 10:13:25,401 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-19 10:13:25,402 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 10:13:25,402 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-19 10:13:25,402 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 10:13:25,403 INFO  L87              Difference]: Start difference. First operand 15 states and 16 transitions. Second operand  has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 10:13:25,439 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 10:13:25,439 INFO  L93              Difference]: Finished difference Result 16 states and 16 transitions.
[2024-11-19 10:13:25,440 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-19 10:13:25,440 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5
[2024-11-19 10:13:25,440 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 10:13:25,441 INFO  L225             Difference]: With dead ends: 16
[2024-11-19 10:13:25,441 INFO  L226             Difference]: Without dead ends: 15
[2024-11-19 10:13:25,441 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-19 10:13:25,443 INFO  L432           NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 10:13:25,443 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 10:13:25,444 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2024-11-19 10:13:25,446 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2024-11-19 10:13:25,446 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 10:13:25,447 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions.
[2024-11-19 10:13:25,447 INFO  L78                 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5
[2024-11-19 10:13:25,447 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 10:13:25,448 INFO  L471      AbstractCegarLoop]: Abstraction has 15 states and 15 transitions.
[2024-11-19 10:13:25,448 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 10:13:25,448 INFO  L276                IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions.
[2024-11-19 10:13:25,448 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-19 10:13:25,448 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 10:13:25,448 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-19 10:13:25,449 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-19 10:13:25,449 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2024-11-19 10:13:25,449 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 10:13:25,450 INFO  L85        PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times
[2024-11-19 10:13:25,450 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 10:13:25,450 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18907864]
[2024-11-19 10:13:25,453 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 10:13:25,454 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 10:13:25,464 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 10:13:25,507 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 10:13:25,507 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 10:13:25,507 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18907864]
[2024-11-19 10:13:25,508 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18907864] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 10:13:25,508 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 10:13:25,508 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 10:13:25,508 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867679635]
[2024-11-19 10:13:25,509 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 10:13:25,509 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 10:13:25,509 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 10:13:25,510 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 10:13:25,510 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 10:13:25,510 INFO  L87              Difference]: Start difference. First operand 15 states and 15 transitions. Second operand  has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 10:13:25,531 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 10:13:25,531 INFO  L93              Difference]: Finished difference Result 15 states and 15 transitions.
[2024-11-19 10:13:25,532 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 10:13:25,532 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-11-19 10:13:25,532 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 10:13:25,532 INFO  L225             Difference]: With dead ends: 15
[2024-11-19 10:13:25,532 INFO  L226             Difference]: Without dead ends: 13
[2024-11-19 10:13:25,533 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 10:13:25,534 INFO  L432           NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 10:13:25,534 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 10:13:25,535 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2024-11-19 10:13:25,538 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2024-11-19 10:13:25,539 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 10:13:25,539 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions.
[2024-11-19 10:13:25,540 INFO  L78                 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7
[2024-11-19 10:13:25,541 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 10:13:25,541 INFO  L471      AbstractCegarLoop]: Abstraction has 13 states and 13 transitions.
[2024-11-19 10:13:25,541 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 10:13:25,541 INFO  L276                IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions.
[2024-11-19 10:13:25,542 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-19 10:13:25,542 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-19 10:13:25,542 INFO  L215           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1]
[2024-11-19 10:13:25,542 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-19 10:13:25,542 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2024-11-19 10:13:25,543 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-19 10:13:25,543 INFO  L85        PathProgramCache]: Analyzing trace with hash 553302605, now seen corresponding path program 1 times
[2024-11-19 10:13:25,543 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-19 10:13:25,543 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586282190]
[2024-11-19 10:13:25,543 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-19 10:13:25,544 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-19 10:13:25,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-19 10:13:25,619 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-19 10:13:25,620 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-19 10:13:25,620 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586282190]
[2024-11-19 10:13:25,620 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586282190] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-19 10:13:25,620 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-19 10:13:25,620 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-19 10:13:25,621 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636871627]
[2024-11-19 10:13:25,621 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-19 10:13:25,621 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-19 10:13:25,621 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-19 10:13:25,623 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-19 10:13:25,623 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 10:13:25,623 INFO  L87              Difference]: Start difference. First operand 13 states and 13 transitions. Second operand  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 10:13:25,656 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-19 10:13:25,656 INFO  L93              Difference]: Finished difference Result 13 states and 13 transitions.
[2024-11-19 10:13:25,657 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-19 10:13:25,657 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2024-11-19 10:13:25,658 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-19 10:13:25,658 INFO  L225             Difference]: With dead ends: 13
[2024-11-19 10:13:25,658 INFO  L226             Difference]: Without dead ends: 0
[2024-11-19 10:13:25,658 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-19 10:13:25,659 INFO  L432           NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-19 10:13:25,660 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-19 10:13:25,660 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-19 10:13:25,661 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-19 10:13:25,661 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 10:13:25,661 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-19 10:13:25,661 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9
[2024-11-19 10:13:25,661 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-19 10:13:25,663 INFO  L471      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-19 10:13:25,664 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-19 10:13:25,664 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-19 10:13:25,664 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-19 10:13:25,666 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining)
[2024-11-19 10:13:25,667 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining)
[2024-11-19 10:13:25,667 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining)
[2024-11-19 10:13:25,667 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining)
[2024-11-19 10:13:25,667 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-19 10:13:25,670 INFO  L407         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-11-19 10:13:25,672 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-19 10:13:25,711 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-19 10:13:25,745 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:13:25 BoogieIcfgContainer
[2024-11-19 10:13:25,749 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-19 10:13:25,750 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-19 10:13:25,750 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-11-19 10:13:25,750 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-11-19 10:13:25,750 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:13:24" (3/4) ...
[2024-11-19 10:13:25,757 INFO  L142         WitnessPrinter]: Generating witness for correct program
[2024-11-19 10:13:25,774 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-11-19 10:13:25,775 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-19 10:13:25,775 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2024-11-19 10:13:25,894 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-19 10:13:25,894 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-19 10:13:25,894 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-19 10:13:25,895 INFO  L158              Benchmark]: Toolchain (without parser) took 1459.82ms. Allocated memory is still 174.1MB. Free memory was 143.2MB in the beginning and 139.4MB in the end (delta: 3.8MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB.
[2024-11-19 10:13:25,895 INFO  L158              Benchmark]: CDTParser took 0.21ms. Allocated memory is still 121.6MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-19 10:13:25,896 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 236.85ms. Allocated memory is still 174.1MB. Free memory was 143.0MB in the beginning and 135.5MB in the end (delta: 7.5MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB.
[2024-11-19 10:13:25,896 INFO  L158              Benchmark]: Boogie Procedure Inliner took 21.49ms. Allocated memory is still 174.1MB. Free memory was 135.5MB in the beginning and 134.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-19 10:13:25,896 INFO  L158              Benchmark]: Boogie Preprocessor took 19.36ms. Allocated memory is still 174.1MB. Free memory was 134.2MB in the beginning and 132.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-19 10:13:25,898 INFO  L158              Benchmark]: RCFGBuilder took 213.59ms. Allocated memory is still 174.1MB. Free memory was 132.6MB in the beginning and 123.7MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-11-19 10:13:25,899 INFO  L158              Benchmark]: TraceAbstraction took 818.50ms. Allocated memory is still 174.1MB. Free memory was 122.9MB in the beginning and 143.7MB in the end (delta: -20.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB.
[2024-11-19 10:13:25,899 INFO  L158              Benchmark]: Witness Printer took 144.24ms. Allocated memory is still 174.1MB. Free memory was 143.7MB in the beginning and 139.4MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-19 10:13:25,900 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.21ms. Allocated memory is still 121.6MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 236.85ms. Allocated memory is still 174.1MB. Free memory was 143.0MB in the beginning and 135.5MB in the end (delta: 7.5MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 21.49ms. Allocated memory is still 174.1MB. Free memory was 135.5MB in the beginning and 134.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
 * Boogie Preprocessor took 19.36ms. Allocated memory is still 174.1MB. Free memory was 134.2MB in the beginning and 132.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 213.59ms. Allocated memory is still 174.1MB. Free memory was 132.6MB in the beginning and 123.7MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 818.50ms. Allocated memory is still 174.1MB. Free memory was 122.9MB in the beginning and 143.7MB in the end (delta: -20.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB.
 * Witness Printer took 144.24ms. Allocated memory is still 174.1MB. Free memory was 143.7MB in the beginning and 139.4MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 10]: integer overflow can never occur
    For all program executions holds that integer overflow can never occur at this location
  - PositiveResult [Line: 10]: integer overflow can never occur
    For all program executions holds that integer overflow can never occur at this location
  - PositiveResult [Line: 11]: integer overflow can never occur
    For all program executions holds that integer overflow can never occur at this location
  - PositiveResult [Line: 11]: integer overflow can never occur
    For all program executions holds that integer overflow can never occur at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 19 mSDtfsCounter, 52 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 53 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    4 specifications checked. All of them hold
  - InvariantResult [Line: 9]: Loop Invariant
    Derived loop invariant: ((i <= 0) && (0 <= (i + 2147483648)))
RESULT: Ultimate proved your program to be correct!
[2024-11-19 10:13:25,928 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE