./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6a5d466dc215f8ed26ed8263d386e990454787d0ed2acd2f0781ac9337fda305 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:36:27,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:36:27,311 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 05:36:27,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:36:27,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:36:27,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:36:27,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:36:27,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:36:27,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:36:27,338 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:36:27,338 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:36:27,338 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:36:27,338 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:36:27,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:36:27,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:36:27,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:36:27,339 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:36:27,339 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:36:27,339 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:36:27,339 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:36:27,339 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:36:27,339 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:36:27,339 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:36:27,339 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:36:27,339 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:36:27,340 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:36:27,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:36:27,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:36:27,340 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:36:27,340 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:36:27,340 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:36:27,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:36:27,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b 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 -> Kojak 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 [2024-12-06 05:36:27,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:36:27,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:36:27,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:36:27,580 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:36:27,580 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:36:27,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i [2024-12-06 05:36:30,257 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/data/f50596500/76e67873887e4aa29045259969adb266/FLAG86e50e75b [2024-12-06 05:36:30,556 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:36:30,556 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i [2024-12-06 05:36:30,579 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/data/f50596500/76e67873887e4aa29045259969adb266/FLAG86e50e75b [2024-12-06 05:36:30,592 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/data/f50596500/76e67873887e4aa29045259969adb266 [2024-12-06 05:36:30,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:36:30,596 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:36:30,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:36:30,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:36:30,601 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:36:30,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:36:30" (1/1) ... [2024-12-06 05:36:30,602 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3103d886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:30, skipping insertion in model container [2024-12-06 05:36:30,603 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:36:30" (1/1) ... [2024-12-06 05:36:30,638 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:36:31,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:36:31,277 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:36:31,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:36:31,435 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:36:31,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:31 WrapperNode [2024-12-06 05:36:31,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:36:31,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:36:31,436 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:36:31,436 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:36:31,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:31" (1/1) ... [2024-12-06 05:36:31,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:31" (1/1) ... [2024-12-06 05:36:31,478 INFO L138 Inliner]: procedures = 498, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2024-12-06 05:36:31,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:36:31,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:36:31,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:36:31,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:36:31,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:31" (1/1) ... [2024-12-06 05:36:31,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:31" (1/1) ... [2024-12-06 05:36:31,490 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:31" (1/1) ... [2024-12-06 05:36:31,490 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:31" (1/1) ... [2024-12-06 05:36:31,495 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:31" (1/1) ... [2024-12-06 05:36:31,496 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:31" (1/1) ... [2024-12-06 05:36:31,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:31" (1/1) ... [2024-12-06 05:36:31,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:31" (1/1) ... [2024-12-06 05:36:31,499 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:31" (1/1) ... [2024-12-06 05:36:31,501 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:36:31,502 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:36:31,502 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:36:31,502 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:36:31,503 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:31" (1/1) ... [2024-12-06 05:36:31,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:36:31,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:36:31,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:36:31,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:36:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 05:36:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 05:36:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 05:36:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 05:36:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:36:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:36:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:36:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 05:36:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 05:36:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:36:31,666 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:36:31,667 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:36:31,768 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-12-06 05:36:31,768 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:36:31,799 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:36:31,800 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:36:31,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:36:31 BoogieIcfgContainer [2024-12-06 05:36:31,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:36:31,800 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:36:31,800 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:36:31,809 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:36:31,809 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:36:31" (1/1) ... [2024-12-06 05:36:31,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:36:31,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:31,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 05:36:31,853 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 05:36:31,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:36:31,857 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:31,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:36:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:36:31,973 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:36:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:36:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:36:32,084 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:36:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:36:32,122 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 05:36:32,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:36:32 ImpRootNode [2024-12-06 05:36:32,146 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:36:32,147 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:36:32,147 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:36:32,147 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:36:32,148 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:36:31" (3/4) ... [2024-12-06 05:36:32,150 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:36:32,151 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:36:32,152 INFO L158 Benchmark]: Toolchain (without parser) took 1555.86ms. Allocated memory is still 142.6MB. Free memory was 114.7MB in the beginning and 61.0MB in the end (delta: 53.8MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2024-12-06 05:36:32,152 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:36:32,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 838.99ms. Allocated memory is still 142.6MB. Free memory was 114.5MB in the beginning and 104.3MB in the end (delta: 10.2MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2024-12-06 05:36:32,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.59ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 101.2MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:36:32,153 INFO L158 Benchmark]: Boogie Preprocessor took 22.25ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 100.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:36:32,153 INFO L158 Benchmark]: RCFGBuilder took 297.74ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 85.2MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:36:32,154 INFO L158 Benchmark]: CodeCheck took 345.89ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 61.5MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-06 05:36:32,154 INFO L158 Benchmark]: Witness Printer took 3.99ms. Allocated memory is still 142.6MB. Free memory is still 61.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:36:32,157 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - 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 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); [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] 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=0, dataPtr1={19266:0}, dataPtr2={19266:0}, 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) [L1567] *dataPtr1 = data [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] --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] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 838.99ms. Allocated memory is still 142.6MB. Free memory was 114.5MB in the beginning and 104.3MB in the end (delta: 10.2MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.59ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 101.2MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.25ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 100.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 297.74ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 85.2MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 345.89ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 61.5MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.99ms. Allocated memory is still 142.6MB. Free memory is still 61.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 05:36:32,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6a5d466dc215f8ed26ed8263d386e990454787d0ed2acd2f0781ac9337fda305 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:36:34,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:36:34,166 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 05:36:34,192 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:36:34,193 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:36:34,193 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:36:34,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:36:34,194 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:36:34,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:36:34,194 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:36:34,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:36:34,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:36:34,194 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:36:34,194 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:36:34,194 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 05:36:34,194 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 05:36:34,195 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:36:34,195 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 05:36:34,195 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:36:34,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:36:34,195 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:36:34,195 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:36:34,195 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:36:34,195 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:36:34,195 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:36:34,195 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:36:34,195 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 05:36:34,196 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:36:34,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:36:34,196 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:36:34,196 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:36:34,196 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:36:34,196 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 05:36:34,196 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:36:34,196 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 05:36:34,196 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b 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 -> Kojak 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 [2024-12-06 05:36:34,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:36:34,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:36:34,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:36:34,454 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:36:34,454 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:36:34,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i [2024-12-06 05:36:37,130 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/data/a3dbec98d/c0d2457ec1b149999ffe766bb5f9254e/FLAG3c28c9384 [2024-12-06 05:36:37,435 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:36:37,436 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i [2024-12-06 05:36:37,458 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/data/a3dbec98d/c0d2457ec1b149999ffe766bb5f9254e/FLAG3c28c9384 [2024-12-06 05:36:37,473 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/data/a3dbec98d/c0d2457ec1b149999ffe766bb5f9254e [2024-12-06 05:36:37,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:36:37,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:36:37,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:36:37,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:36:37,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:36:37,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:36:37" (1/1) ... [2024-12-06 05:36:37,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e154ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:37, skipping insertion in model container [2024-12-06 05:36:37,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:36:37" (1/1) ... [2024-12-06 05:36:37,520 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:36:38,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:36:38,194 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:36:38,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:36:38,392 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:36:38,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:38 WrapperNode [2024-12-06 05:36:38,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:36:38,393 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:36:38,394 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:36:38,394 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:36:38,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:38" (1/1) ... [2024-12-06 05:36:38,417 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:38" (1/1) ... [2024-12-06 05:36:38,436 INFO L138 Inliner]: procedures = 503, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2024-12-06 05:36:38,437 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:36:38,437 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:36:38,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:36:38,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:36:38,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:38" (1/1) ... [2024-12-06 05:36:38,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:38" (1/1) ... [2024-12-06 05:36:38,448 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:38" (1/1) ... [2024-12-06 05:36:38,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:38" (1/1) ... [2024-12-06 05:36:38,457 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:38" (1/1) ... [2024-12-06 05:36:38,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:38" (1/1) ... [2024-12-06 05:36:38,460 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:38" (1/1) ... [2024-12-06 05:36:38,462 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:38" (1/1) ... [2024-12-06 05:36:38,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:38" (1/1) ... [2024-12-06 05:36:38,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:36:38,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:36:38,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:36:38,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:36:38,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:38" (1/1) ... [2024-12-06 05:36:38,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:36:38,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:36:38,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:36:38,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:36:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 05:36:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 05:36:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 05:36:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 05:36:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:36:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:36:38,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:36:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-06 05:36:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 05:36:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-06 05:36:38,669 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:36:38,671 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:36:38,816 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-12-06 05:36:38,816 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:36:38,859 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:36:38,859 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:36:38,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:36:38 BoogieIcfgContainer [2024-12-06 05:36:38,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:36:38,860 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:36:38,861 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:36:38,872 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:36:38,873 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:36:38" (1/1) ... [2024-12-06 05:36:38,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:36:38,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:36:38,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 05:36:38,936 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 05:36:38,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:36:38,941 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:36:38,942 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:36:38,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:36:38,944 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:36:38,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 05:36:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:36:39,185 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:36:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:36:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:36:39,404 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:36:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:36:39,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 05:36:39,479 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 05:36:39,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:36:39 ImpRootNode [2024-12-06 05:36:39,504 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:36:39,505 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:36:39,505 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:36:39,505 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:36:39,506 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:36:38" (3/4) ... [2024-12-06 05:36:39,508 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:36:39,509 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:36:39,510 INFO L158 Benchmark]: Toolchain (without parser) took 2033.01ms. Allocated memory is still 92.3MB. Free memory was 66.5MB in the beginning and 47.5MB in the end (delta: 19.0MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-12-06 05:36:39,510 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:36:39,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 914.71ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 62.1MB in the end (delta: 4.2MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2024-12-06 05:36:39,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.41ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 59.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:36:39,511 INFO L158 Benchmark]: Boogie Preprocessor took 28.64ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 57.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:36:39,511 INFO L158 Benchmark]: RCFGBuilder took 392.97ms. Allocated memory is still 92.3MB. Free memory was 57.5MB in the beginning and 40.4MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:36:39,512 INFO L158 Benchmark]: CodeCheck took 643.59ms. Allocated memory is still 92.3MB. Free memory was 40.0MB in the beginning and 47.5MB in the end (delta: -7.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:36:39,512 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 92.3MB. Free memory was 47.5MB in the beginning and 47.5MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:36:39,515 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - 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 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); [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] 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=0, dataPtr1={5:0}, dataPtr2={5:0}, 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) [L1567] *dataPtr1 = data [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] --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] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 914.71ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 62.1MB in the end (delta: 4.2MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.41ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 59.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.64ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 57.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 392.97ms. Allocated memory is still 92.3MB. Free memory was 57.5MB in the beginning and 40.4MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 643.59ms. Allocated memory is still 92.3MB. Free memory was 40.0MB in the beginning and 47.5MB in the end (delta: -7.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 92.3MB. Free memory was 47.5MB in the beginning and 47.5MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 05:36:39,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_172b16ab-c998-456b-9645-6b4048ced1ac/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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