./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loops/sum_array-2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/loops/sum_array-2-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 0e94a2410b8f9c85a45197b99fd856588e050ecf98cb4c3bee10ba4be0dc2732 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 01:56:09,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 01:56:09,729 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 01:56:09,732 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 01:56:09,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 01:56:09,749 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 01:56:09,749 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 01:56:09,749 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 01:56:09,749 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 01:56:09,750 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 01:56:09,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 01:56:09,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 01:56:09,750 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 01:56:09,750 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 01:56:09,750 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 01:56:09,750 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 01:56:09,750 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 01:56:09,750 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 01:56:09,750 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 01:56:09,750 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 01:56:09,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 01:56:09,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 01:56:09,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 01:56:09,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 01:56:09,750 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 01:56:09,750 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 01:56:09,751 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 01:56:09,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 01:56:09,751 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 01:56:09,751 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 01:56:09,751 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 01:56:09,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 01:56:09,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 01:56:09,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 01:56:09,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:56:09,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 01:56:09,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 01:56:09,751 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 01:56:09,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 01:56:09,751 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 01:56:09,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 01:56:09,751 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 01:56:09,751 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 01:56:09,753 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 01:56:09,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 01:56:09,753 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e94a2410b8f9c85a45197b99fd856588e050ecf98cb4c3bee10ba4be0dc2732 [2025-03-09 01:56:09,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 01:56:09,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 01:56:09,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 01:56:09,986 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 01:56:09,986 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 01:56:09,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum_array-2-1.i [2025-03-09 01:56:11,095 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b96a03fcd/cb6ee975885f46e7b84ac02415585970/FLAG7081943ba [2025-03-09 01:56:11,353 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 01:56:11,353 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum_array-2-1.i [2025-03-09 01:56:11,358 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b96a03fcd/cb6ee975885f46e7b84ac02415585970/FLAG7081943ba [2025-03-09 01:56:11,659 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b96a03fcd/cb6ee975885f46e7b84ac02415585970 [2025-03-09 01:56:11,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 01:56:11,662 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 01:56:11,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 01:56:11,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 01:56:11,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 01:56:11,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:56:11" (1/1) ... [2025-03-09 01:56:11,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f16c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:11, skipping insertion in model container [2025-03-09 01:56:11,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:56:11" (1/1) ... [2025-03-09 01:56:11,677 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:56:11,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:56:11,789 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 01:56:11,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:56:11,818 INFO L204 MainTranslator]: Completed translation [2025-03-09 01:56:11,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:11 WrapperNode [2025-03-09 01:56:11,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 01:56:11,820 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 01:56:11,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 01:56:11,820 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 01:56:11,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:11" (1/1) ... [2025-03-09 01:56:11,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:11" (1/1) ... [2025-03-09 01:56:11,848 INFO L138 Inliner]: procedures = 18, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2025-03-09 01:56:11,849 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 01:56:11,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 01:56:11,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 01:56:11,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 01:56:11,856 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:11" (1/1) ... [2025-03-09 01:56:11,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:11" (1/1) ... [2025-03-09 01:56:11,857 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:11" (1/1) ... [2025-03-09 01:56:11,869 INFO L175 MemorySlicer]: Split 12 memory accesses to 4 slices as follows [2, 4, 2, 4]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-03-09 01:56:11,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:11" (1/1) ... [2025-03-09 01:56:11,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:11" (1/1) ... [2025-03-09 01:56:11,875 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:11" (1/1) ... [2025-03-09 01:56:11,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:11" (1/1) ... [2025-03-09 01:56:11,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:11" (1/1) ... [2025-03-09 01:56:11,883 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:11" (1/1) ... [2025-03-09 01:56:11,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 01:56:11,885 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 01:56:11,885 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 01:56:11,885 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 01:56:11,886 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:11" (1/1) ... [2025-03-09 01:56:11,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:56:11,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:56:11,914 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) [2025-03-09 01:56:11,916 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 [2025-03-09 01:56:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 01:56:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 01:56:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 01:56:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 01:56:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-09 01:56:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 01:56:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 01:56:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 01:56:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-09 01:56:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-09 01:56:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 01:56:11,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 01:56:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 01:56:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 01:56:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-09 01:56:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-09 01:56:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 01:56:12,003 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 01:56:12,004 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 01:56:12,141 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2025-03-09 01:56:12,141 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 01:56:12,147 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 01:56:12,147 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 01:56:12,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:56:12 BoogieIcfgContainer [2025-03-09 01:56:12,148 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 01:56:12,151 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 01:56:12,152 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 01:56:12,155 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 01:56:12,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 01:56:11" (1/3) ... [2025-03-09 01:56:12,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f795e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:56:12, skipping insertion in model container [2025-03-09 01:56:12,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:11" (2/3) ... [2025-03-09 01:56:12,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f795e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:56:12, skipping insertion in model container [2025-03-09 01:56:12,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:56:12" (3/3) ... [2025-03-09 01:56:12,157 INFO L128 eAbstractionObserver]: Analyzing ICFG sum_array-2-1.i [2025-03-09 01:56:12,167 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 01:56:12,168 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sum_array-2-1.i that has 1 procedures, 25 locations, 1 initial locations, 4 loop locations, and 4 error locations. [2025-03-09 01:56:12,209 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 01:56:12,221 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;@101adc39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 01:56:12,221 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-09 01:56:12,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 20 states have (on average 1.65) internal successors, (33), 24 states have internal predecessors, (33), 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) [2025-03-09 01:56:12,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-09 01:56:12,226 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:56:12,226 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:56:12,227 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:56:12,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:56:12,231 INFO L85 PathProgramCache]: Analyzing trace with hash 657793919, now seen corresponding path program 1 times [2025-03-09 01:56:12,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:56:12,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196829834] [2025-03-09 01:56:12,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:56:12,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:56:12,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 01:56:12,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 01:56:12,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:56:12,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:56:12,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:56:12,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:56:12,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196829834] [2025-03-09 01:56:12,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196829834] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:56:12,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:56:12,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:56:12,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703254434] [2025-03-09 01:56:12,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:56:12,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:56:12,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:56:12,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:56:12,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:56:12,570 INFO L87 Difference]: Start difference. First operand has 25 states, 20 states have (on average 1.65) internal successors, (33), 24 states have internal predecessors, (33), 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 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2025-03-09 01:56:12,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:56:12,677 INFO L93 Difference]: Finished difference Result 66 states and 90 transitions. [2025-03-09 01:56:12,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:56:12,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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 [2025-03-09 01:56:12,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:56:12,683 INFO L225 Difference]: With dead ends: 66 [2025-03-09 01:56:12,685 INFO L226 Difference]: Without dead ends: 35 [2025-03-09 01:56:12,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:56:12,697 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 16 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 01:56:12,697 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 62 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 01:56:12,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-03-09 01:56:12,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 22. [2025-03-09 01:56:12,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 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) [2025-03-09 01:56:12,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2025-03-09 01:56:12,733 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 7 [2025-03-09 01:56:12,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:56:12,734 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2025-03-09 01:56:12,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2025-03-09 01:56:12,735 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2025-03-09 01:56:12,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-09 01:56:12,736 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:56:12,736 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:56:12,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 01:56:12,736 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:56:12,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:56:12,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1897841727, now seen corresponding path program 1 times [2025-03-09 01:56:12,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:56:12,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392429004] [2025-03-09 01:56:12,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:56:12,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:56:12,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 01:56:12,793 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 01:56:12,793 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:56:12,793 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 01:56:12,795 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 01:56:12,801 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 01:56:12,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 01:56:12,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:56:12,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 01:56:12,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 01:56:12,880 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-09 01:56:12,881 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-03-09 01:56:12,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-03-09 01:56:12,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-03-09 01:56:12,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-03-09 01:56:12,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 01:56:12,886 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-09 01:56:12,898 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 01:56:12,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 01:56:12 BoogieIcfgContainer [2025-03-09 01:56:12,901 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 01:56:12,901 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 01:56:12,901 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 01:56:12,901 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 01:56:12,902 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:56:12" (3/4) ... [2025-03-09 01:56:12,902 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-09 01:56:12,931 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 9. [2025-03-09 01:56:12,965 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 01:56:12,965 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 01:56:12,965 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 01:56:12,967 INFO L158 Benchmark]: Toolchain (without parser) took 1304.25ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 94.6MB in the end (delta: 10.3MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2025-03-09 01:56:12,968 INFO L158 Benchmark]: CDTParser took 1.06ms. Allocated memory is still 201.3MB. Free memory is still 127.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:56:12,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 156.77ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 93.6MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:56:12,970 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.94ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 92.4MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:56:12,970 INFO L158 Benchmark]: Boogie Preprocessor took 35.27ms. Allocated memory is still 142.6MB. Free memory was 92.4MB in the beginning and 91.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:56:12,970 INFO L158 Benchmark]: IcfgBuilder took 262.78ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 76.8MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:56:12,970 INFO L158 Benchmark]: TraceAbstraction took 749.33ms. Allocated memory is still 142.6MB. Free memory was 75.6MB in the beginning and 100.2MB in the end (delta: -24.6MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2025-03-09 01:56:12,970 INFO L158 Benchmark]: Witness Printer took 64.47ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 94.6MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:56:12,972 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.06ms. Allocated memory is still 201.3MB. Free memory is still 127.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 156.77ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 93.6MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.94ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 92.4MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.27ms. Allocated memory is still 142.6MB. Free memory was 92.4MB in the beginning and 91.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 262.78ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 76.8MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 749.33ms. Allocated memory is still 142.6MB. Free memory was 75.6MB in the beginning and 100.2MB in the end (delta: -24.6MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * Witness Printer took 64.47ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 94.6MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. 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 - CounterExampleResult [Line: 42]: integer overflow possible integer overflow possible We found a FailurePath: [L27] unsigned int M = __VERIFIER_nondet_uint(); [L28] COND FALSE !(M > 1000000) [L31] int A[M], B[M], C[M]; [L32] unsigned int i; [L33] i=0 VAL [A={3:0}, B={5:0}, C={6:0}, M=1, i=0] [L33] COND TRUE i