./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_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/CWE191_Integer_Underflow__int_fgets_predec_32_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 6a5d466dc215f8ed26ed8263d386e990454787d0ed2acd2f0781ac9337fda305 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 19:44:39,692 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 19:44:39,775 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-12 19:44:39,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 19:44:39,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 19:44:39,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 19:44:39,806 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 19:44:39,807 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 19:44:39,807 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 19:44:39,809 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 19:44:39,809 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 19:44:39,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 19:44:39,810 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 19:44:39,810 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 19:44:39,812 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 19:44:39,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 19:44:39,813 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 19:44:39,813 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 19:44:39,813 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 19:44:39,814 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 19:44:39,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 19:44:39,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 19:44:39,818 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 19:44:39,818 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 19:44:39,819 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 19:44:39,819 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 19:44:39,819 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 19:44:39,820 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 19:44:39,820 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 19:44:39,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 19:44:39,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 19:44:39,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 19:44:39,821 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 19:44:39,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 19:44:39,821 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 19:44:39,821 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 19:44:39,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 19:44:39,822 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 19:44:39,822 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 19:44:39,822 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 19:44:39,823 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 19:44:39,824 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a5d466dc215f8ed26ed8263d386e990454787d0ed2acd2f0781ac9337fda305 [2024-11-12 19:44:40,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 19:44:40,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 19:44:40,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 19:44:40,112 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 19:44:40,112 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 19:44:40,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i [2024-11-12 19:44:41,569 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 19:44:41,901 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 19:44:41,901 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i [2024-11-12 19:44:41,927 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f24b5c93a/b5b1ed54a7a048d9a1a8f0a6e752b9a9/FLAGd40d03ae6 [2024-11-12 19:44:42,136 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f24b5c93a/b5b1ed54a7a048d9a1a8f0a6e752b9a9 [2024-11-12 19:44:42,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 19:44:42,139 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 19:44:42,140 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 19:44:42,140 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 19:44:42,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 19:44:42,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:44:42" (1/1) ... [2024-11-12 19:44:42,146 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d6c540d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:42, skipping insertion in model container [2024-11-12 19:44:42,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:44:42" (1/1) ... [2024-11-12 19:44:42,191 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 19:44:42,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 19:44:42,868 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 19:44:42,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 19:44:43,046 INFO L204 MainTranslator]: Completed translation [2024-11-12 19:44:43,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:43 WrapperNode [2024-11-12 19:44:43,047 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 19:44:43,048 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 19:44:43,048 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 19:44:43,048 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 19:44:43,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:43" (1/1) ... [2024-11-12 19:44:43,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:43" (1/1) ... [2024-11-12 19:44:43,117 INFO L138 Inliner]: procedures = 498, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2024-11-12 19:44:43,118 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 19:44:43,118 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 19:44:43,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 19:44:43,119 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 19:44:43,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:43" (1/1) ... [2024-11-12 19:44:43,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:43" (1/1) ... [2024-11-12 19:44:43,137 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:43" (1/1) ... [2024-11-12 19:44:43,152 INFO L175 MemorySlicer]: Split 12 memory accesses to 4 slices as follows [1, 4, 4, 3]. 33 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [1, 1, 0, 1]. The 4 writes are split as follows [0, 1, 2, 1]. [2024-11-12 19:44:43,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:43" (1/1) ... [2024-11-12 19:44:43,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:43" (1/1) ... [2024-11-12 19:44:43,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:43" (1/1) ... [2024-11-12 19:44:43,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:43" (1/1) ... [2024-11-12 19:44:43,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:43" (1/1) ... [2024-11-12 19:44:43,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:43" (1/1) ... [2024-11-12 19:44:43,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 19:44:43,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 19:44:43,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 19:44:43,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 19:44:43,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:43" (1/1) ... [2024-11-12 19:44:43,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 19:44:43,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 19:44:43,214 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 19:44:43,218 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 19:44:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-12 19:44:43,349 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-12 19:44:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 19:44:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 19:44:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 19:44:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 19:44:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 19:44:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 19:44:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 19:44:43,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 19:44:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 19:44:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 19:44:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 19:44:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 19:44:43,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 19:44:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 19:44:43,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 19:44:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 19:44:43,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 19:44:43,542 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 19:44:43,545 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 19:44:43,706 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-12 19:44:43,706 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 19:44:43,718 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 19:44:43,718 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 19:44:43,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:44:43 BoogieIcfgContainer [2024-11-12 19:44:43,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 19:44:43,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 19:44:43,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 19:44:43,726 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 19:44:43,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:44:42" (1/3) ... [2024-11-12 19:44:43,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358bee8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:44:43, skipping insertion in model container [2024-11-12 19:44:43,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:43" (2/3) ... [2024-11-12 19:44:43,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358bee8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:44:43, skipping insertion in model container [2024-11-12 19:44:43,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:44:43" (3/3) ... [2024-11-12 19:44:43,730 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_32_bad.i [2024-11-12 19:44:43,748 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 19:44:43,749 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 19:44:43,804 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 19:44:43,810 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;@4ef2f450, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 19:44:43,811 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-12 19:44:43,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 18 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) [2024-11-12 19:44:43,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-12 19:44:43,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 19:44:43,823 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 19:44:43,824 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 19:44:43,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 19:44:43,830 INFO L85 PathProgramCache]: Analyzing trace with hash 733376356, now seen corresponding path program 1 times [2024-11-12 19:44:43,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 19:44:43,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28885494] [2024-11-12 19:44:43,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 19:44:43,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 19:44:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 19:44:44,006 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 19:44:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 19:44:44,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 19:44:44,115 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 19:44:44,116 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-12 19:44:44,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-12 19:44:44,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 19:44:44,124 INFO L421 BasicCegarLoop]: Path program histogram: [1] [2024-11-12 19:44:44,150 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 19:44:44,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:44:44 BoogieIcfgContainer [2024-11-12 19:44:44,153 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 19:44:44,153 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 19:44:44,153 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 19:44:44,153 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 19:44:44,154 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:44:43" (3/4) ... [2024-11-12 19:44:44,156 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 19:44:44,157 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 19:44:44,158 INFO L158 Benchmark]: Toolchain (without parser) took 2018.64ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 119.0MB in the beginning and 131.2MB in the end (delta: -12.2MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2024-11-12 19:44:44,158 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 151.0MB. Free memory is still 109.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 19:44:44,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 907.49ms. Allocated memory is still 151.0MB. Free memory was 119.0MB in the beginning and 52.4MB in the end (delta: 66.6MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-11-12 19:44:44,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.83ms. Allocated memory is still 151.0MB. Free memory was 52.4MB in the beginning and 49.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 19:44:44,160 INFO L158 Benchmark]: Boogie Preprocessor took 53.10ms. Allocated memory is still 151.0MB. Free memory was 49.3MB in the beginning and 47.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 19:44:44,160 INFO L158 Benchmark]: RCFGBuilder took 547.39ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 47.2MB in the beginning and 155.3MB in the end (delta: -108.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-12 19:44:44,161 INFO L158 Benchmark]: TraceAbstraction took 431.00ms. Allocated memory is still 201.3MB. Free memory was 155.3MB in the beginning and 131.2MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-12 19:44:44,161 INFO L158 Benchmark]: Witness Printer took 3.81ms. Allocated memory is still 201.3MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 19:44:44,164 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 151.0MB. Free memory is still 109.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 907.49ms. Allocated memory is still 151.0MB. Free memory was 119.0MB in the beginning and 52.4MB in the end (delta: 66.6MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.83ms. Allocated memory is still 151.0MB. Free memory was 52.4MB in the beginning and 49.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.10ms. Allocated memory is still 151.0MB. Free memory was 49.3MB in the beginning and 47.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 547.39ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 47.2MB in the beginning and 155.3MB in the end (delta: -108.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 431.00ms. Allocated memory is still 201.3MB. Free memory was 155.3MB in the beginning and 131.2MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 3.81ms. Allocated memory is still 201.3MB. Free memory is still 131.2MB. 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: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1558. 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] [L1581] 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) [L1581] 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] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] int data = *dataPtr1; [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={19:0}, dataPtr1={18:0}, dataPtr2={18:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1560] data = atoi(inputBuffer) [L1567] EXPR \read(data) [L1567] *dataPtr1 = data [L1555] int data = *dataPtr1; [L1570] int data = *dataPtr2; [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] EXPR \read(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] [L1572] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={14:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1572]: 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: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 19:44:44,204 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/CWE191_Integer_Underflow__int_fgets_predec_32_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 6a5d466dc215f8ed26ed8263d386e990454787d0ed2acd2f0781ac9337fda305 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 19:44:46,556 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 19:44:46,633 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-12 19:44:46,639 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 19:44:46,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 19:44:46,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-12 19:44:46,677 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 19:44:46,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 19:44:46,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 19:44:46,682 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 19:44:46,682 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 19:44:46,682 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 19:44:46,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 19:44:46,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 19:44:46,683 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 19:44:46,683 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 19:44:46,684 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 19:44:46,684 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 19:44:46,684 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 19:44:46,684 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 19:44:46,684 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 19:44:46,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 19:44:46,686 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 19:44:46,687 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-12 19:44:46,687 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 19:44:46,687 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 19:44:46,687 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-12 19:44:46,687 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 19:44:46,688 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 19:44:46,688 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 19:44:46,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 19:44:46,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 19:44:46,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 19:44:46,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 19:44:46,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 19:44:46,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 19:44:46,702 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 19:44:46,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 19:44:46,702 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-12 19:44:46,702 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-12 19:44:46,702 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 19:44:46,704 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 19:44:46,704 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 19:44:46,704 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 19:44:46,705 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a5d466dc215f8ed26ed8263d386e990454787d0ed2acd2f0781ac9337fda305 [2024-11-12 19:44:47,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 19:44:47,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 19:44:47,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 19:44:47,086 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 19:44:47,087 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 19:44:47,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i [2024-11-12 19:44:48,637 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 19:44:49,026 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 19:44:49,027 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i [2024-11-12 19:44:49,058 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55002e29e/1d7e850938b247abb6040a4cf4c64a84/FLAG126194194 [2024-11-12 19:44:49,076 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55002e29e/1d7e850938b247abb6040a4cf4c64a84 [2024-11-12 19:44:49,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 19:44:49,080 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 19:44:49,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 19:44:49,083 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 19:44:49,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 19:44:49,089 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:44:49" (1/1) ... [2024-11-12 19:44:49,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d7db155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:49, skipping insertion in model container [2024-11-12 19:44:49,091 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:44:49" (1/1) ... [2024-11-12 19:44:49,167 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 19:44:49,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 19:44:49,899 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 19:44:49,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 19:44:50,094 INFO L204 MainTranslator]: Completed translation [2024-11-12 19:44:50,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:50 WrapperNode [2024-11-12 19:44:50,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 19:44:50,096 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 19:44:50,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 19:44:50,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 19:44:50,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:50" (1/1) ... [2024-11-12 19:44:50,133 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:50" (1/1) ... [2024-11-12 19:44:50,159 INFO L138 Inliner]: procedures = 504, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2024-11-12 19:44:50,160 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 19:44:50,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 19:44:50,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 19:44:50,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 19:44:50,172 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:50" (1/1) ... [2024-11-12 19:44:50,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:50" (1/1) ... [2024-11-12 19:44:50,176 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:50" (1/1) ... [2024-11-12 19:44:50,194 INFO L175 MemorySlicer]: Split 12 memory accesses to 4 slices as follows [1, 4, 3, 4]. 33 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [1, 1, 1, 0]. The 4 writes are split as follows [0, 1, 1, 2]. [2024-11-12 19:44:50,194 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:50" (1/1) ... [2024-11-12 19:44:50,194 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:50" (1/1) ... [2024-11-12 19:44:50,216 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:50" (1/1) ... [2024-11-12 19:44:50,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:50" (1/1) ... [2024-11-12 19:44:50,224 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:50" (1/1) ... [2024-11-12 19:44:50,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:50" (1/1) ... [2024-11-12 19:44:50,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 19:44:50,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 19:44:50,234 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 19:44:50,234 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 19:44:50,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:50" (1/1) ... [2024-11-12 19:44:50,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 19:44:50,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 19:44:50,279 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 19:44:50,281 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 19:44:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-12 19:44:50,330 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-12 19:44:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 19:44:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-12 19:44:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-12 19:44:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-12 19:44:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-12 19:44:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-12 19:44:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-12 19:44:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-12 19:44:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-12 19:44:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 19:44:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 19:44:50,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 19:44:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-12 19:44:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-12 19:44:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-12 19:44:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-12 19:44:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 19:44:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-12 19:44:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-12 19:44:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-12 19:44:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-12 19:44:50,531 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 19:44:50,535 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 19:44:50,756 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-12 19:44:50,756 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 19:44:50,768 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 19:44:50,768 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 19:44:50,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:44:50 BoogieIcfgContainer [2024-11-12 19:44:50,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 19:44:50,772 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 19:44:50,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 19:44:50,775 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 19:44:50,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:44:49" (1/3) ... [2024-11-12 19:44:50,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59333bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:44:50, skipping insertion in model container [2024-11-12 19:44:50,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:44:50" (2/3) ... [2024-11-12 19:44:50,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59333bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:44:50, skipping insertion in model container [2024-11-12 19:44:50,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:44:50" (3/3) ... [2024-11-12 19:44:50,779 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_32_bad.i [2024-11-12 19:44:50,796 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 19:44:50,796 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 19:44:50,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 19:44:50,870 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;@5d6f3de9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 19:44:50,871 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-12 19:44:50,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 18 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) [2024-11-12 19:44:50,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-12 19:44:50,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 19:44:50,882 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 19:44:50,883 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 19:44:50,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 19:44:50,889 INFO L85 PathProgramCache]: Analyzing trace with hash 733376356, now seen corresponding path program 1 times [2024-11-12 19:44:50,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 19:44:50,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [319040892] [2024-11-12 19:44:50,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 19:44:50,906 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 19:44:50,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 19:44:50,933 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 19:44:50,934 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 19:44:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 19:44:51,157 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 19:44:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 19:44:51,272 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-12 19:44:51,274 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 19:44:51,275 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-12 19:44:51,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-12 19:44:51,287 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 (2)] Forceful destruction successful, exit code 0 [2024-11-12 19:44:51,481 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 19:44:51,485 INFO L421 BasicCegarLoop]: Path program histogram: [1] [2024-11-12 19:44:51,518 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 19:44:51,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:44:51 BoogieIcfgContainer [2024-11-12 19:44:51,523 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 19:44:51,524 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 19:44:51,524 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 19:44:51,524 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 19:44:51,526 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:44:50" (3/4) ... [2024-11-12 19:44:51,529 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 19:44:51,530 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 19:44:51,531 INFO L158 Benchmark]: Toolchain (without parser) took 2451.32ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 44.9MB in the beginning and 46.8MB in the end (delta: -1.8MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2024-11-12 19:44:51,533 INFO L158 Benchmark]: CDTParser took 1.68ms. Allocated memory is still 44.0MB. Free memory was 27.8MB in the beginning and 27.7MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 19:44:51,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1014.20ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 44.7MB in the beginning and 41.9MB in the end (delta: 2.7MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2024-11-12 19:44:51,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.90ms. Allocated memory is still 88.1MB. Free memory was 41.9MB in the beginning and 38.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 19:44:51,535 INFO L158 Benchmark]: Boogie Preprocessor took 72.53ms. Allocated memory is still 88.1MB. Free memory was 38.7MB in the beginning and 35.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 19:44:51,536 INFO L158 Benchmark]: RCFGBuilder took 535.36ms. Allocated memory is still 88.1MB. Free memory was 35.7MB in the beginning and 44.9MB in the end (delta: -9.2MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2024-11-12 19:44:51,536 INFO L158 Benchmark]: TraceAbstraction took 750.32ms. Allocated memory is still 88.1MB. Free memory was 43.8MB in the beginning and 47.3MB in the end (delta: -3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 19:44:51,537 INFO L158 Benchmark]: Witness Printer took 6.31ms. Allocated memory is still 88.1MB. Free memory was 47.3MB in the beginning and 46.8MB in the end (delta: 537.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 19:44:51,539 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.68ms. Allocated memory is still 44.0MB. Free memory was 27.8MB in the beginning and 27.7MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1014.20ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 44.7MB in the beginning and 41.9MB in the end (delta: 2.7MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.90ms. Allocated memory is still 88.1MB. Free memory was 41.9MB in the beginning and 38.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.53ms. Allocated memory is still 88.1MB. Free memory was 38.7MB in the beginning and 35.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 535.36ms. Allocated memory is still 88.1MB. Free memory was 35.7MB in the beginning and 44.9MB in the end (delta: -9.2MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * TraceAbstraction took 750.32ms. Allocated memory is still 88.1MB. Free memory was 43.8MB in the beginning and 47.3MB in the end (delta: -3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.31ms. Allocated memory is still 88.1MB. Free memory was 47.3MB in the beginning and 46.8MB in the end (delta: 537.1kB). 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: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1558. 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] [L1581] 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) [L1581] 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] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] int data = *dataPtr1; [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, dataPtr1={6:0}, dataPtr2={6:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1560] data = atoi(inputBuffer) [L1567] EXPR \read(data) [L1567] *dataPtr1 = data [L1555] int data = *dataPtr1; [L1570] int data = *dataPtr2; [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] EXPR \read(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] [L1572] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1572]: 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: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 19:44:51,569 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