./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_66_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_66_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 4a37bd51e58385ba91810afd1a7208eed2b067d5cc2da8b2d5b75382ec103ed0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 03:46:15,702 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 03:46:15,780 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-01-10 03:46:15,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 03:46:15,788 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 03:46:15,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 03:46:15,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 03:46:15,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 03:46:15,819 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 03:46:15,820 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 03:46:15,821 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 03:46:15,821 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 03:46:15,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 03:46:15,821 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 03:46:15,821 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 03:46:15,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 03:46:15,822 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 03:46:15,822 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 03:46:15,822 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 03:46:15,822 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 03:46:15,822 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 03:46:15,822 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 03:46:15,822 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 03:46:15,823 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 03:46:15,823 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 03:46:15,823 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 03:46:15,823 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 03:46:15,823 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 03:46:15,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 03:46:15,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 03:46:15,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 03:46:15,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:46:15,824 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 03:46:15,824 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 03:46:15,824 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 03:46:15,825 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 03:46:15,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:46:15,825 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 03:46:15,825 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 03:46:15,825 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 03:46:15,825 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 03:46:15,825 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 03:46:15,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 03:46:15,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 03:46:15,825 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 03:46:15,826 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 03:46:15,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 03:46:15,826 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-jdk21/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 -> 4a37bd51e58385ba91810afd1a7208eed2b067d5cc2da8b2d5b75382ec103ed0 [2025-01-10 03:46:16,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 03:46:16,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 03:46:16,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 03:46:16,142 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 03:46:16,143 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 03:46:16,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_66_bad.i [2025-01-10 03:46:17,433 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/06474a7a3/5291279a58954831a4932ea52d012d2d/FLAGf9d0562d1 [2025-01-10 03:46:17,808 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 03:46:17,809 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_66_bad.i [2025-01-10 03:46:17,842 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/06474a7a3/5291279a58954831a4932ea52d012d2d/FLAGf9d0562d1 [2025-01-10 03:46:17,862 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/06474a7a3/5291279a58954831a4932ea52d012d2d [2025-01-10 03:46:17,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 03:46:17,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 03:46:17,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 03:46:17,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 03:46:17,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 03:46:17,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:46:17" (1/1) ... [2025-01-10 03:46:17,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e18604b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:17, skipping insertion in model container [2025-01-10 03:46:17,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:46:17" (1/1) ... [2025-01-10 03:46:17,919 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 03:46:18,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 03:46:18,569 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 03:46:18,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 03:46:18,777 INFO L204 MainTranslator]: Completed translation [2025-01-10 03:46:18,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:18 WrapperNode [2025-01-10 03:46:18,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 03:46:18,781 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 03:46:18,781 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 03:46:18,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 03:46:18,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:18" (1/1) ... [2025-01-10 03:46:18,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:18" (1/1) ... [2025-01-10 03:46:18,826 INFO L138 Inliner]: procedures = 499, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2025-01-10 03:46:18,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 03:46:18,827 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 03:46:18,827 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 03:46:18,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 03:46:18,835 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:18" (1/1) ... [2025-01-10 03:46:18,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:18" (1/1) ... [2025-01-10 03:46:18,838 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:18" (1/1) ... [2025-01-10 03:46:18,851 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [1, 2]. 67 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 1 writes are split as follows [0, 1]. [2025-01-10 03:46:18,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:18" (1/1) ... [2025-01-10 03:46:18,852 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:18" (1/1) ... [2025-01-10 03:46:18,857 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:18" (1/1) ... [2025-01-10 03:46:18,858 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:18" (1/1) ... [2025-01-10 03:46:18,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:18" (1/1) ... [2025-01-10 03:46:18,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:18" (1/1) ... [2025-01-10 03:46:18,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:18" (1/1) ... [2025-01-10 03:46:18,864 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 03:46:18,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 03:46:18,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 03:46:18,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 03:46:18,871 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:18" (1/1) ... [2025-01-10 03:46:18,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:46:18,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 03:46:18,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 03:46:18,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 03:46:18,919 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-01-10 03:46:18,919 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-01-10 03:46:18,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 03:46:18,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 03:46:18,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 03:46:18,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 03:46:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 03:46:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 03:46:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 03:46:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 03:46:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 03:46:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 03:46:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 03:46:19,080 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 03:46:19,082 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 03:46:19,236 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2025-01-10 03:46:19,237 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 03:46:19,245 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 03:46:19,245 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 03:46:19,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:46:19 BoogieIcfgContainer [2025-01-10 03:46:19,246 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 03:46:19,248 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 03:46:19,248 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 03:46:19,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 03:46:19,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:46:17" (1/3) ... [2025-01-10 03:46:19,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abd0fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:46:19, skipping insertion in model container [2025-01-10 03:46:19,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:18" (2/3) ... [2025-01-10 03:46:19,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abd0fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:46:19, skipping insertion in model container [2025-01-10 03:46:19,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:46:19" (3/3) ... [2025-01-10 03:46:19,255 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_66_bad.i [2025-01-10 03:46:19,269 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 03:46:19,270 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_postinc_66_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-01-10 03:46:19,318 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 03:46:19,328 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;@5278528f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 03:46:19,329 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-10 03:46:19,332 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 03:46:19,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-10 03:46:19,339 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 03:46:19,340 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 03:46:19,340 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 03:46:19,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 03:46:19,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2025-01-10 03:46:19,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 03:46:19,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391252556] [2025-01-10 03:46:19,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 03:46:19,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 03:46:19,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 03:46:19,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 03:46:19,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:46:19,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 03:46:19,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 03:46:19,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 03:46:19,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391252556] [2025-01-10 03:46:19,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391252556] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 03:46:19,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 03:46:19,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 03:46:19,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592594763] [2025-01-10 03:46:19,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 03:46:19,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 03:46:19,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 03:46:20,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 03:46:20,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 03:46:20,004 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) [2025-01-10 03:46:20,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 03:46:20,046 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2025-01-10 03:46:20,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 03:46:20,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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 11 [2025-01-10 03:46:20,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 03:46:20,054 INFO L225 Difference]: With dead ends: 23 [2025-01-10 03:46:20,055 INFO L226 Difference]: Without dead ends: 14 [2025-01-10 03:46:20,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 03:46:20,062 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 03:46:20,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 56 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 03:46:20,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-01-10 03:46:20,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2025-01-10 03:46:20,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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) [2025-01-10 03:46:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2025-01-10 03:46:20,094 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2025-01-10 03:46:20,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 03:46:20,095 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2025-01-10 03:46:20,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) [2025-01-10 03:46:20,095 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2025-01-10 03:46:20,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-01-10 03:46:20,098 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 03:46:20,099 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 03:46:20,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 03:46:20,099 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 03:46:20,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 03:46:20,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2025-01-10 03:46:20,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 03:46:20,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550334833] [2025-01-10 03:46:20,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 03:46:20,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 03:46:20,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 03:46:20,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 03:46:20,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:46:20,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 03:46:20,147 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 03:46:20,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 03:46:20,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 03:46:20,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:46:20,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 03:46:20,192 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 03:46:20,192 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-10 03:46:20,194 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-01-10 03:46:20,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-01-10 03:46:20,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 03:46:20,199 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-10 03:46:20,224 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 03:46:20,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 03:46:20 BoogieIcfgContainer [2025-01-10 03:46:20,229 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 03:46:20,230 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 03:46:20,230 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 03:46:20,230 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 03:46:20,232 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:46:19" (3/4) ... [2025-01-10 03:46:20,235 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-10 03:46:20,236 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 03:46:20,238 INFO L158 Benchmark]: Toolchain (without parser) took 2369.65ms. Allocated memory is still 167.8MB. Free memory was 119.9MB in the beginning and 62.2MB in the end (delta: 57.7MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2025-01-10 03:46:20,239 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 201.3MB. Free memory is still 115.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:46:20,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 911.03ms. Allocated memory is still 167.8MB. Free memory was 119.9MB in the beginning and 58.6MB in the end (delta: 61.3MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-01-10 03:46:20,240 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.28ms. Allocated memory is still 167.8MB. Free memory was 58.6MB in the beginning and 55.5MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:46:20,240 INFO L158 Benchmark]: Boogie Preprocessor took 36.63ms. Allocated memory is still 167.8MB. Free memory was 55.5MB in the beginning and 53.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:46:20,240 INFO L158 Benchmark]: RCFGBuilder took 377.90ms. Allocated memory is still 167.8MB. Free memory was 53.4MB in the beginning and 40.8MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 03:46:20,241 INFO L158 Benchmark]: TraceAbstraction took 981.09ms. Allocated memory is still 167.8MB. Free memory was 39.7MB in the beginning and 62.2MB in the end (delta: -22.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:46:20,241 INFO L158 Benchmark]: Witness Printer took 6.62ms. Allocated memory is still 167.8MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:46:20,243 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 201.3MB. Free memory is still 115.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 911.03ms. Allocated memory is still 167.8MB. Free memory was 119.9MB in the beginning and 58.6MB in the end (delta: 61.3MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.28ms. Allocated memory is still 167.8MB. Free memory was 58.6MB in the beginning and 55.5MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.63ms. Allocated memory is still 167.8MB. Free memory was 55.5MB in the beginning and 53.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 377.90ms. Allocated memory is still 167.8MB. Free memory was 53.4MB in the beginning and 40.8MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 981.09ms. Allocated memory is still 167.8MB. Free memory was 39.7MB in the beginning and 62.2MB in the end (delta: -22.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.62ms. Allocated memory is still 167.8MB. Free memory is still 62.2MB. 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: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. 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] [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1571] 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] [L1572] CALL CWE190_Integer_Overflow__int_fgets_postinc_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={14:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] dataArray[2] = data [L1566] CALL CWE190_Integer_Overflow__int_fgets_postinc_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1580] 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: 1580]: 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, 23 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, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 21 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-10 03:46:20,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_66_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 4a37bd51e58385ba91810afd1a7208eed2b067d5cc2da8b2d5b75382ec103ed0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 03:46:22,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 03:46:22,740 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-01-10 03:46:22,750 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 03:46:22,751 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 03:46:22,751 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-01-10 03:46:22,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 03:46:22,780 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 03:46:22,781 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 03:46:22,781 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 03:46:22,781 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 03:46:22,781 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 03:46:22,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 03:46:22,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 03:46:22,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 03:46:22,782 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 03:46:22,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 03:46:22,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 03:46:22,782 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 03:46:22,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 03:46:22,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 03:46:22,783 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 03:46:22,783 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 03:46:22,783 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-10 03:46:22,783 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 03:46:22,783 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-10 03:46:22,784 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 03:46:22,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 03:46:22,784 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 03:46:22,784 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 03:46:22,784 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 03:46:22,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 03:46:22,784 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 03:46:22,784 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 03:46:22,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:46:22,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 03:46:22,785 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 03:46:22,785 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 03:46:22,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 03:46:22,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:46:22,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 03:46:22,785 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 03:46:22,785 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 03:46:22,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 03:46:22,786 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-10 03:46:22,786 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-10 03:46:22,786 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 03:46:22,786 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 03:46:22,786 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 03:46:22,786 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 03:46:22,786 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-jdk21/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 -> 4a37bd51e58385ba91810afd1a7208eed2b067d5cc2da8b2d5b75382ec103ed0 [2025-01-10 03:46:23,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 03:46:23,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 03:46:23,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 03:46:23,113 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 03:46:23,113 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 03:46:23,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_66_bad.i [2025-01-10 03:46:24,554 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/57bcc3db3/c922eabf757d41a4918d69de5c9305a0/FLAG15206482c [2025-01-10 03:46:24,912 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 03:46:24,913 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_66_bad.i [2025-01-10 03:46:24,944 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/57bcc3db3/c922eabf757d41a4918d69de5c9305a0/FLAG15206482c [2025-01-10 03:46:24,966 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/57bcc3db3/c922eabf757d41a4918d69de5c9305a0 [2025-01-10 03:46:24,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 03:46:24,970 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 03:46:24,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 03:46:24,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 03:46:24,976 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 03:46:24,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:46:24" (1/1) ... [2025-01-10 03:46:24,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70237d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:24, skipping insertion in model container [2025-01-10 03:46:24,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:46:24" (1/1) ... [2025-01-10 03:46:25,029 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 03:46:25,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 03:46:25,714 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 03:46:25,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 03:46:26,006 INFO L204 MainTranslator]: Completed translation [2025-01-10 03:46:26,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:26 WrapperNode [2025-01-10 03:46:26,009 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 03:46:26,010 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 03:46:26,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 03:46:26,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 03:46:26,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:26" (1/1) ... [2025-01-10 03:46:26,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:26" (1/1) ... [2025-01-10 03:46:26,069 INFO L138 Inliner]: procedures = 504, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 69 [2025-01-10 03:46:26,069 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 03:46:26,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 03:46:26,071 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 03:46:26,071 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 03:46:26,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:26" (1/1) ... [2025-01-10 03:46:26,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:26" (1/1) ... [2025-01-10 03:46:26,088 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:26" (1/1) ... [2025-01-10 03:46:26,111 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [1, 2]. 67 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 1 writes are split as follows [0, 1]. [2025-01-10 03:46:26,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:26" (1/1) ... [2025-01-10 03:46:26,112 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:26" (1/1) ... [2025-01-10 03:46:26,127 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:26" (1/1) ... [2025-01-10 03:46:26,128 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:26" (1/1) ... [2025-01-10 03:46:26,133 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:26" (1/1) ... [2025-01-10 03:46:26,139 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:26" (1/1) ... [2025-01-10 03:46:26,141 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:26" (1/1) ... [2025-01-10 03:46:26,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 03:46:26,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 03:46:26,146 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 03:46:26,146 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 03:46:26,147 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:26" (1/1) ... [2025-01-10 03:46:26,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:46:26,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 03:46:26,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 03:46:26,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 03:46:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-01-10 03:46:26,207 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-01-10 03:46:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 03:46:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-10 03:46:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-10 03:46:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 03:46:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 03:46:26,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 03:46:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-10 03:46:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-10 03:46:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 03:46:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-10 03:46:26,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-10 03:46:26,334 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 03:46:26,335 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 03:46:26,495 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2025-01-10 03:46:26,496 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 03:46:26,507 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 03:46:26,508 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 03:46:26,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:46:26 BoogieIcfgContainer [2025-01-10 03:46:26,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 03:46:26,511 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 03:46:26,511 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 03:46:26,516 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 03:46:26,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:46:24" (1/3) ... [2025-01-10 03:46:26,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21cab9da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:46:26, skipping insertion in model container [2025-01-10 03:46:26,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:46:26" (2/3) ... [2025-01-10 03:46:26,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21cab9da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:46:26, skipping insertion in model container [2025-01-10 03:46:26,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:46:26" (3/3) ... [2025-01-10 03:46:26,520 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_66_bad.i [2025-01-10 03:46:26,533 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 03:46:26,534 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_postinc_66_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-01-10 03:46:26,581 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 03:46:26,593 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;@e705f27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 03:46:26,593 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-10 03:46:26,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-10 03:46:26,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-10 03:46:26,604 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 03:46:26,607 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 03:46:26,607 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 03:46:26,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 03:46:26,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2025-01-10 03:46:26,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 03:46:26,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [325324605] [2025-01-10 03:46:26,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 03:46:26,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 03:46:26,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 03:46:26,625 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 03:46:26,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 03:46:26,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 03:46:26,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 03:46:26,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:46:26,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 03:46:26,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-10 03:46:26,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 03:46:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 03:46:26,833 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 03:46:26,833 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 03:46:26,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325324605] [2025-01-10 03:46:26,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325324605] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 03:46:26,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 03:46:26,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 03:46:26,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299188774] [2025-01-10 03:46:26,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 03:46:26,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-10 03:46:26,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 03:46:26,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-10 03:46:26,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-10 03:46:26,860 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2025-01-10 03:46:26,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 03:46:26,874 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2025-01-10 03:46:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-10 03:46:26,876 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 11 [2025-01-10 03:46:26,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 03:46:26,881 INFO L225 Difference]: With dead ends: 23 [2025-01-10 03:46:26,881 INFO L226 Difference]: Without dead ends: 14 [2025-01-10 03:46:26,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-10 03:46:26,886 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 03:46:26,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 03:46:26,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-01-10 03:46:26,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2025-01-10 03:46:26,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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) [2025-01-10 03:46:26,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2025-01-10 03:46:26,918 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2025-01-10 03:46:26,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 03:46:26,920 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2025-01-10 03:46:26,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2025-01-10 03:46:26,920 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2025-01-10 03:46:26,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-01-10 03:46:26,922 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 03:46:26,922 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 03:46:26,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 03:46:27,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 03:46:27,123 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 03:46:27,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 03:46:27,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2025-01-10 03:46:27,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 03:46:27,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1687895013] [2025-01-10 03:46:27,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 03:46:27,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 03:46:27,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 03:46:27,128 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 03:46:27,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 03:46:27,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 03:46:27,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 03:46:27,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:46:27,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 03:46:27,255 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 03:46:27,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 03:46:27,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 03:46:27,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:46:27,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 03:46:27,320 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-01-10 03:46:27,320 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-10 03:46:27,322 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-01-10 03:46:27,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-01-10 03:46:27,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 03:46:27,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 03:46:27,527 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-10 03:46:27,553 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 03:46:27,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 03:46:27 BoogieIcfgContainer [2025-01-10 03:46:27,556 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 03:46:27,557 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 03:46:27,557 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 03:46:27,557 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 03:46:27,557 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:46:26" (3/4) ... [2025-01-10 03:46:27,559 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-10 03:46:27,560 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 03:46:27,561 INFO L158 Benchmark]: Toolchain (without parser) took 2590.64ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 61.6MB in the end (delta: 27.9MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2025-01-10 03:46:27,561 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory was 62.1MB in the beginning and 62.1MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:46:27,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1038.12ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 76.1MB in the end (delta: 13.4MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2025-01-10 03:46:27,562 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.55ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 73.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:46:27,562 INFO L158 Benchmark]: Boogie Preprocessor took 73.64ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 70.7MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 03:46:27,562 INFO L158 Benchmark]: RCFGBuilder took 363.25ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 56.2MB in the end (delta: 14.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 03:46:27,562 INFO L158 Benchmark]: TraceAbstraction took 1045.34ms. Allocated memory is still 117.4MB. Free memory was 55.5MB in the beginning and 61.6MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:46:27,563 INFO L158 Benchmark]: Witness Printer took 3.63ms. Allocated memory is still 117.4MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:46:27,564 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory was 62.1MB in the beginning and 62.1MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1038.12ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 76.1MB in the end (delta: 13.4MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.55ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 73.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 73.64ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 70.7MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 363.25ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 56.2MB in the end (delta: 14.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1045.34ms. Allocated memory is still 117.4MB. Free memory was 55.5MB in the beginning and 61.6MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.63ms. Allocated memory is still 117.4MB. Free memory is still 61.6MB. 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: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. 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] [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1571] 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] [L1572] CALL CWE190_Integer_Overflow__int_fgets_postinc_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] dataArray[2] = data [L1566] CALL CWE190_Integer_Overflow__int_fgets_postinc_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1580] 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: 1580]: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 78 ConjunctsInSsa, 1 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-10 03:46:27,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample