./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_15_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f 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/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_15_bad.i -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 4d781dd7e1799455c731ceff1510bbd253f2e69e537692c29035a826a8ed3012 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 18:44:10,120 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 18:44:10,191 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-12 18:44:10,201 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 18:44:10,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 18:44:10,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 18:44:10,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 18:44:10,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 18:44:10,245 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 18:44:10,247 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 18:44:10,247 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 18:44:10,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 18:44:10,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 18:44:10,249 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 18:44:10,249 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 18:44:10,249 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 18:44:10,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 18:44:10,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 18:44:10,250 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 18:44:10,250 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 18:44:10,250 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 18:44:10,251 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 18:44:10,251 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 18:44:10,251 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 18:44:10,253 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 18:44:10,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 18:44:10,254 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 18:44:10,254 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 18:44:10,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 18:44:10,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 18:44:10,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 18:44:10,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 18:44:10,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 18:44:10,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 18:44:10,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 18:44:10,255 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 18:44:10,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 18:44:10,255 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 18:44:10,255 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 18:44:10,255 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 18:44:10,256 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 18:44:10,256 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d781dd7e1799455c731ceff1510bbd253f2e69e537692c29035a826a8ed3012 [2024-11-12 18:44:10,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 18:44:10,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 18:44:10,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 18:44:10,477 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 18:44:10,477 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 18:44:10,478 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_15_bad.i [2024-11-12 18:44:11,875 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 18:44:12,155 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 18:44:12,155 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_15_bad.i [2024-11-12 18:44:12,174 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8098afe4d/967dbd9546e7418cbb4daf77584056d0/FLAGf7d5f09fd [2024-11-12 18:44:12,184 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8098afe4d/967dbd9546e7418cbb4daf77584056d0 [2024-11-12 18:44:12,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 18:44:12,188 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 18:44:12,189 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 18:44:12,189 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 18:44:12,194 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 18:44:12,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:44:12" (1/1) ... [2024-11-12 18:44:12,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9552dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:12, skipping insertion in model container [2024-11-12 18:44:12,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:44:12" (1/1) ... [2024-11-12 18:44:12,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 18:44:13,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 18:44:13,142 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 18:44:13,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 18:44:13,364 INFO L204 MainTranslator]: Completed translation [2024-11-12 18:44:13,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:13 WrapperNode [2024-11-12 18:44:13,365 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 18:44:13,366 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 18:44:13,366 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 18:44:13,366 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 18:44:13,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:13" (1/1) ... [2024-11-12 18:44:13,390 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:13" (1/1) ... [2024-11-12 18:44:13,413 INFO L138 Inliner]: procedures = 936, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2024-11-12 18:44:13,416 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 18:44:13,417 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 18:44:13,417 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 18:44:13,417 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 18:44:13,426 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:13" (1/1) ... [2024-11-12 18:44:13,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:13" (1/1) ... [2024-11-12 18:44:13,430 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:13" (1/1) ... [2024-11-12 18:44:13,443 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-12 18:44:13,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:13" (1/1) ... [2024-11-12 18:44:13,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:13" (1/1) ... [2024-11-12 18:44:13,447 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:13" (1/1) ... [2024-11-12 18:44:13,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:13" (1/1) ... [2024-11-12 18:44:13,450 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:13" (1/1) ... [2024-11-12 18:44:13,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:13" (1/1) ... [2024-11-12 18:44:13,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 18:44:13,458 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 18:44:13,458 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 18:44:13,458 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 18:44:13,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:13" (1/1) ... [2024-11-12 18:44:13,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 18:44:13,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 18:44:13,491 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) [2024-11-12 18:44:13,494 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 [2024-11-12 18:44:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 18:44:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 18:44:13,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 18:44:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-12 18:44:13,529 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-12 18:44:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 18:44:13,656 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 18:44:13,658 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 18:44:13,751 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-12 18:44:13,751 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 18:44:13,759 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 18:44:13,759 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 18:44:13,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:44:13 BoogieIcfgContainer [2024-11-12 18:44:13,760 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 18:44:13,761 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 18:44:13,761 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 18:44:13,767 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 18:44:13,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:44:12" (1/3) ... [2024-11-12 18:44:13,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f55a972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:44:13, skipping insertion in model container [2024-11-12 18:44:13,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:13" (2/3) ... [2024-11-12 18:44:13,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f55a972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:44:13, skipping insertion in model container [2024-11-12 18:44:13,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:44:13" (3/3) ... [2024-11-12 18:44:13,772 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_15_bad.i [2024-11-12 18:44:13,792 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 18:44:13,796 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 18:44:13,854 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 18:44:13,859 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;@5dc8df8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 18:44:13,859 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-12 18:44:13,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-12 18:44:13,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-12 18:44:13,866 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 18:44:13,867 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 18:44:13,867 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 18:44:13,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 18:44:13,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1760262427, now seen corresponding path program 1 times [2024-11-12 18:44:13,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 18:44:13,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886984779] [2024-11-12 18:44:13,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 18:44:13,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 18:44:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 18:44:14,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 18:44:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 18:44:14,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 18:44:14,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 18:44:14,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886984779] [2024-11-12 18:44:14,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886984779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 18:44:14,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 18:44:14,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 18:44:14,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867759734] [2024-11-12 18:44:14,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 18:44:14,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 18:44:14,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 18:44:14,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 18:44:14,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 18:44:14,083 INFO L87 Difference]: Start difference. First operand has 31 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 18:44:14,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 18:44:14,109 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2024-11-12 18:44:14,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 18:44:14,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-11-12 18:44:14,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 18:44:14,115 INFO L225 Difference]: With dead ends: 50 [2024-11-12 18:44:14,115 INFO L226 Difference]: Without dead ends: 18 [2024-11-12 18:44:14,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 18:44:14,121 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 18:44:14,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 18:44:14,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-12 18:44:14,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-12 18:44:14,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 18:44:14,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2024-11-12 18:44:14,147 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 13 [2024-11-12 18:44:14,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 18:44:14,148 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-11-12 18:44:14,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 18:44:14,149 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-11-12 18:44:14,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-12 18:44:14,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 18:44:14,150 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 18:44:14,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 18:44:14,151 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 18:44:14,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 18:44:14,152 INFO L85 PathProgramCache]: Analyzing trace with hash -977816031, now seen corresponding path program 1 times [2024-11-12 18:44:14,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 18:44:14,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399721310] [2024-11-12 18:44:14,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 18:44:14,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 18:44:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 18:44:14,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1624558757] [2024-11-12 18:44:14,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 18:44:14,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 18:44:14,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 18:44:14,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 18:44:14,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 18:44:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 18:44:14,312 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 18:44:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 18:44:14,364 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 18:44:14,365 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 18:44:14,366 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-12 18:44:14,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-12 18:44:14,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 18:44:14,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 18:44:14,575 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-12 18:44:14,621 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 18:44:14,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:44:14 BoogieIcfgContainer [2024-11-12 18:44:14,624 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 18:44:14,625 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 18:44:14,625 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 18:44:14,626 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 18:44:14,626 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:44:13" (3/4) ... [2024-11-12 18:44:14,628 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 18:44:14,629 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 18:44:14,629 INFO L158 Benchmark]: Toolchain (without parser) took 2441.61ms. Allocated memory is still 211.8MB. Free memory was 138.5MB in the beginning and 176.3MB in the end (delta: -37.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 18:44:14,629 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 18:44:14,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1176.46ms. Allocated memory is still 211.8MB. Free memory was 138.5MB in the beginning and 138.8MB in the end (delta: -245.8kB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2024-11-12 18:44:14,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.76ms. Allocated memory is still 211.8MB. Free memory was 138.8MB in the beginning and 135.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 18:44:14,633 INFO L158 Benchmark]: Boogie Preprocessor took 40.46ms. Allocated memory is still 211.8MB. Free memory was 135.6MB in the beginning and 133.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 18:44:14,634 INFO L158 Benchmark]: RCFGBuilder took 302.29ms. Allocated memory is still 211.8MB. Free memory was 133.5MB in the beginning and 117.8MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-12 18:44:14,634 INFO L158 Benchmark]: TraceAbstraction took 863.18ms. Allocated memory is still 211.8MB. Free memory was 117.8MB in the beginning and 176.3MB in the end (delta: -58.5MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. [2024-11-12 18:44:14,634 INFO L158 Benchmark]: Witness Printer took 3.57ms. Allocated memory is still 211.8MB. Free memory is still 176.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 18:44:14,638 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1176.46ms. Allocated memory is still 211.8MB. Free memory was 138.5MB in the beginning and 138.8MB in the end (delta: -245.8kB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.76ms. Allocated memory is still 211.8MB. Free memory was 138.8MB in the beginning and 135.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.46ms. Allocated memory is still 211.8MB. Free memory was 135.6MB in the beginning and 133.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 302.29ms. Allocated memory is still 211.8MB. Free memory was 133.5MB in the beginning and 117.8MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 863.18ms. Allocated memory is still 211.8MB. Free memory was 117.8MB in the beginning and 176.3MB in the end (delta: -58.5MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. * Witness Printer took 3.57ms. Allocated memory is still 211.8MB. Free memory is still 176.3MB. There was no memory consumed. 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 - UnprovableResult [Line: 1859]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1843, overapproximation of large string literal at line 1871. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1871] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1871] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1872] CALL CWE190_Integer_Overflow__int_fgets_square_15_bad() [L1834] int data; [L1835] data = 0 [L1838] case 6: [L1840] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1838] case 6: [L1843] data = atoi(inputBuffer) [L1857] case 7: VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-46341, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1859] data * data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1859]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 33 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-12 18:44:14,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_15_bad.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.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 4d781dd7e1799455c731ceff1510bbd253f2e69e537692c29035a826a8ed3012 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 18:44:16,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 18:44:16,603 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-12 18:44:16,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 18:44:16,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 18:44:16,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-12 18:44:16,624 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 18:44:16,624 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 18:44:16,625 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 18:44:16,625 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 18:44:16,625 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 18:44:16,625 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 18:44:16,626 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 18:44:16,626 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 18:44:16,626 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 18:44:16,627 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 18:44:16,627 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 18:44:16,627 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 18:44:16,627 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 18:44:16,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 18:44:16,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 18:44:16,630 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 18:44:16,631 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 18:44:16,631 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-12 18:44:16,631 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 18:44:16,631 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 18:44:16,631 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-12 18:44:16,631 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 18:44:16,632 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 18:44:16,632 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 18:44:16,632 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 18:44:16,632 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 18:44:16,632 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 18:44:16,632 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 18:44:16,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 18:44:16,633 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 18:44:16,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 18:44:16,633 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 18:44:16,633 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-12 18:44:16,633 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-12 18:44:16,634 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 18:44:16,637 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 18:44:16,637 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 18:44:16,637 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 18:44:16,638 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d781dd7e1799455c731ceff1510bbd253f2e69e537692c29035a826a8ed3012 [2024-11-12 18:44:16,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 18:44:16,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 18:44:16,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 18:44:16,891 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 18:44:16,891 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 18:44:16,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_15_bad.i [2024-11-12 18:44:18,345 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 18:44:18,617 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 18:44:18,618 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_15_bad.i [2024-11-12 18:44:18,639 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/811a85111/69ab8618266c47b58e8c2ac6d894192d/FLAG6693b8332 [2024-11-12 18:44:18,653 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/811a85111/69ab8618266c47b58e8c2ac6d894192d [2024-11-12 18:44:18,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 18:44:18,656 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 18:44:18,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 18:44:18,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 18:44:18,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 18:44:18,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:44:18" (1/1) ... [2024-11-12 18:44:18,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed21833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:18, skipping insertion in model container [2024-11-12 18:44:18,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:44:18" (1/1) ... [2024-11-12 18:44:18,716 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 18:44:19,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 18:44:19,611 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 18:44:19,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 18:44:19,904 INFO L204 MainTranslator]: Completed translation [2024-11-12 18:44:19,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:19 WrapperNode [2024-11-12 18:44:19,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 18:44:19,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 18:44:19,906 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 18:44:19,906 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 18:44:19,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:19" (1/1) ... [2024-11-12 18:44:19,936 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:19" (1/1) ... [2024-11-12 18:44:19,956 INFO L138 Inliner]: procedures = 941, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2024-11-12 18:44:19,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 18:44:19,957 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 18:44:19,957 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 18:44:19,957 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 18:44:19,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:19" (1/1) ... [2024-11-12 18:44:19,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:19" (1/1) ... [2024-11-12 18:44:19,972 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:19" (1/1) ... [2024-11-12 18:44:19,985 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-12 18:44:19,985 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:19" (1/1) ... [2024-11-12 18:44:19,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:19" (1/1) ... [2024-11-12 18:44:19,991 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:19" (1/1) ... [2024-11-12 18:44:19,992 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:19" (1/1) ... [2024-11-12 18:44:19,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:19" (1/1) ... [2024-11-12 18:44:19,997 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:19" (1/1) ... [2024-11-12 18:44:20,000 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 18:44:20,000 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 18:44:20,000 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 18:44:20,001 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 18:44:20,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:19" (1/1) ... [2024-11-12 18:44:20,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 18:44:20,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 18:44:20,028 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) [2024-11-12 18:44:20,036 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 [2024-11-12 18:44:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 18:44:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 18:44:20,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 18:44:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-12 18:44:20,070 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-12 18:44:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-12 18:44:20,200 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 18:44:20,204 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 18:44:22,318 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-12 18:44:22,319 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 18:44:22,332 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 18:44:22,332 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 18:44:22,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:44:22 BoogieIcfgContainer [2024-11-12 18:44:22,333 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 18:44:22,334 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 18:44:22,334 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 18:44:22,337 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 18:44:22,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:44:18" (1/3) ... [2024-11-12 18:44:22,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26d69b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:44:22, skipping insertion in model container [2024-11-12 18:44:22,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:19" (2/3) ... [2024-11-12 18:44:22,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26d69b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:44:22, skipping insertion in model container [2024-11-12 18:44:22,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:44:22" (3/3) ... [2024-11-12 18:44:22,340 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_15_bad.i [2024-11-12 18:44:22,351 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 18:44:22,351 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 18:44:22,392 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 18:44:22,397 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;@2c8eb575, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 18:44:22,397 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-12 18:44:22,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-12 18:44:22,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-12 18:44:22,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 18:44:22,407 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 18:44:22,408 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 18:44:22,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 18:44:22,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1760262427, now seen corresponding path program 1 times [2024-11-12 18:44:22,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 18:44:22,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126445217] [2024-11-12 18:44:22,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 18:44:22,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 18:44:22,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 18:44:22,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 18:44:22,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-12 18:44:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 18:44:22,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 18:44:22,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 18:44:22,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 18:44:22,548 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 18:44:22,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 18:44:22,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126445217] [2024-11-12 18:44:22,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126445217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 18:44:22,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 18:44:22,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 18:44:22,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103188724] [2024-11-12 18:44:22,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 18:44:22,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 18:44:22,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 18:44:22,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 18:44:22,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 18:44:22,573 INFO L87 Difference]: Start difference. First operand has 31 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 18:44:22,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 18:44:22,591 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2024-11-12 18:44:22,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 18:44:22,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-11-12 18:44:22,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 18:44:22,600 INFO L225 Difference]: With dead ends: 51 [2024-11-12 18:44:22,600 INFO L226 Difference]: Without dead ends: 19 [2024-11-12 18:44:22,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 18:44:22,606 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 18:44:22,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 18:44:22,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-12 18:44:22,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-12 18:44:22,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 18:44:22,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-12 18:44:22,630 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2024-11-12 18:44:22,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 18:44:22,631 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-12 18:44:22,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 18:44:22,632 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-12 18:44:22,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-12 18:44:22,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 18:44:22,633 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 18:44:22,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-12 18:44:22,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 18:44:22,834 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 18:44:22,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 18:44:22,835 INFO L85 PathProgramCache]: Analyzing trace with hash 938288870, now seen corresponding path program 1 times [2024-11-12 18:44:22,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 18:44:22,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261108108] [2024-11-12 18:44:22,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 18:44:22,836 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 18:44:22,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 18:44:22,838 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 18:44:22,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-12 18:44:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 18:44:22,958 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 18:44:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 18:44:23,039 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-12 18:44:23,040 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 18:44:23,041 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-12 18:44:23,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-12 18:44:23,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-12 18:44:23,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 18:44:23,249 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-12 18:44:23,265 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 18:44:23,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:44:23 BoogieIcfgContainer [2024-11-12 18:44:23,267 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 18:44:23,268 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 18:44:23,268 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 18:44:23,268 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 18:44:23,269 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:44:22" (3/4) ... [2024-11-12 18:44:23,270 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 18:44:23,271 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 18:44:23,271 INFO L158 Benchmark]: Toolchain (without parser) took 4615.57ms. Allocated memory was 90.2MB in the beginning and 123.7MB in the end (delta: 33.6MB). Free memory was 54.6MB in the beginning and 30.9MB in the end (delta: 23.7MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2024-11-12 18:44:23,272 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 58.7MB. Free memory is still 28.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 18:44:23,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1248.23ms. Allocated memory was 90.2MB in the beginning and 123.7MB in the end (delta: 33.6MB). Free memory was 54.4MB in the beginning and 91.7MB in the end (delta: -37.3MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-12 18:44:23,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.45ms. Allocated memory is still 123.7MB. Free memory was 91.7MB in the beginning and 87.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 18:44:23,273 INFO L158 Benchmark]: Boogie Preprocessor took 42.49ms. Allocated memory is still 123.7MB. Free memory was 87.5MB in the beginning and 84.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 18:44:23,273 INFO L158 Benchmark]: RCFGBuilder took 2332.42ms. Allocated memory is still 123.7MB. Free memory was 84.4MB in the beginning and 67.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-12 18:44:23,273 INFO L158 Benchmark]: TraceAbstraction took 933.64ms. Allocated memory is still 123.7MB. Free memory was 66.5MB in the beginning and 31.9MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-12 18:44:23,274 INFO L158 Benchmark]: Witness Printer took 3.11ms. Allocated memory is still 123.7MB. Free memory is still 30.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 18:44:23,275 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 58.7MB. Free memory is still 28.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1248.23ms. Allocated memory was 90.2MB in the beginning and 123.7MB in the end (delta: 33.6MB). Free memory was 54.4MB in the beginning and 91.7MB in the end (delta: -37.3MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.45ms. Allocated memory is still 123.7MB. Free memory was 91.7MB in the beginning and 87.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.49ms. Allocated memory is still 123.7MB. Free memory was 87.5MB in the beginning and 84.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2332.42ms. Allocated memory is still 123.7MB. Free memory was 84.4MB in the beginning and 67.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 933.64ms. Allocated memory is still 123.7MB. Free memory was 66.5MB in the beginning and 31.9MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 3.11ms. Allocated memory is still 123.7MB. Free memory is still 30.9MB. There was no memory consumed. 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 - UnprovableResult [Line: 1859]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1843, overapproximation of large string literal at line 1871. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1871] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1871] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1872] CALL CWE190_Integer_Overflow__int_fgets_square_15_bad() [L1834] int data; [L1835] data = 0 [L1838] case 6: [L1840] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1838] case 6: [L1843] data = atoi(inputBuffer) [L1857] case 7: VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1859] data * data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1859]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 34 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-12 18:44:23,334 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: UNKNOWN: Overapproximated counterexample