./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm --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 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:21:32,162 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:21:32,244 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 20:21:32,249 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:21:32,249 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:21:32,272 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:21:32,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:21:32,274 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:21:32,275 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:21:32,275 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:21:32,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:21:32,276 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:21:32,276 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:21:32,276 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:21:32,278 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:21:32,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:21:32,278 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:21:32,278 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:21:32,278 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 20:21:32,279 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 20:21:32,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:21:32,279 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:21:32,279 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:21:32,279 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:21:32,279 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:21:32,279 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:21:32,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:21:32,280 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:21:32,280 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:21:32,280 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:21:32,280 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:21:32,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:21:32,280 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_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm 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 -> 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed [2024-11-13 20:21:32,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:21:32,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:21:32,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:21:32,637 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:21:32,638 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:21:32,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i Unable to find full path for "g++" [2024-11-13 20:21:34,516 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:21:34,875 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:21:34,879 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i [2024-11-13 20:21:34,918 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/data/c32ab89d9/f2f4b47c601740e9b4e8341c4ad799bb/FLAGf4d02bb3f [2024-11-13 20:21:34,942 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/data/c32ab89d9/f2f4b47c601740e9b4e8341c4ad799bb [2024-11-13 20:21:34,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:21:34,946 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:21:34,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:21:34,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:21:34,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:21:34,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:21:34" (1/1) ... [2024-11-13 20:21:34,958 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e19515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:34, skipping insertion in model container [2024-11-13 20:21:34,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:21:34" (1/1) ... [2024-11-13 20:21:35,029 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:21:36,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:21:36,166 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:21:36,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:21:36,419 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:21:36,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:36 WrapperNode [2024-11-13 20:21:36,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:21:36,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:21:36,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:21:36,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:21:36,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:36" (1/1) ... [2024-11-13 20:21:36,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:36" (1/1) ... [2024-11-13 20:21:36,492 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 69 [2024-11-13 20:21:36,492 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:21:36,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:21:36,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:21:36,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:21:36,502 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:36" (1/1) ... [2024-11-13 20:21:36,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:36" (1/1) ... [2024-11-13 20:21:36,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:36" (1/1) ... [2024-11-13 20:21:36,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:36" (1/1) ... [2024-11-13 20:21:36,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:36" (1/1) ... [2024-11-13 20:21:36,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:36" (1/1) ... [2024-11-13 20:21:36,529 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:36" (1/1) ... [2024-11-13 20:21:36,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:36" (1/1) ... [2024-11-13 20:21:36,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:21:36,537 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:21:36,537 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:21:36,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:21:36,539 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:36" (1/1) ... [2024-11-13 20:21:36,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:21:36,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:21:36,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:21:36,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:21:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 20:21:36,617 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 20:21:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:21:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:21:36,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:21:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:21:36,783 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:21:36,785 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:21:36,944 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-13 20:21:36,945 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:21:36,992 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:21:36,992 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 20:21:36,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:21:36 BoogieIcfgContainer [2024-11-13 20:21:36,992 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:21:36,993 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:21:36,993 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:21:37,007 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:21:37,008 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:21:36" (1/1) ... [2024-11-13 20:21:37,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:21:37,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:21:37,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 20:21:37,070 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 20:21:37,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 20:21:37,076 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:21:37,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:21:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:21:37,211 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:21:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:21:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:21:37,322 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:21:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:21:37,358 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 20:21:37,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:21:37 ImpRootNode [2024-11-13 20:21:37,382 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:21:37,383 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:21:37,383 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:21:37,383 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:21:37,384 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:21:36" (3/4) ... [2024-11-13 20:21:37,386 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 20:21:37,387 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:21:37,388 INFO L158 Benchmark]: Toolchain (without parser) took 2441.92ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 42.5MB in the end (delta: 46.9MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2024-11-13 20:21:37,388 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:21:37,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1470.45ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 80.0MB in the end (delta: 9.2MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-11-13 20:21:37,389 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.76ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 77.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:21:37,390 INFO L158 Benchmark]: Boogie Preprocessor took 39.73ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 76.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:21:37,390 INFO L158 Benchmark]: RCFGBuilder took 455.35ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 61.6MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:21:37,391 INFO L158 Benchmark]: CodeCheck took 389.36ms. Allocated memory is still 117.4MB. Free memory was 61.6MB in the beginning and 43.0MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:21:37,391 INFO L158 Benchmark]: Witness Printer took 4.21ms. Allocated memory is still 117.4MB. Free memory was 43.0MB in the beginning and 42.5MB in the end (delta: 535.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:21:37,393 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, 16 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 - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_51b_badSink(data) [L1577] 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 0.29ms. Allocated memory is still 117.4MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1470.45ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 80.0MB in the end (delta: 9.2MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.76ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 77.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.73ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 76.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 455.35ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 61.6MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 389.36ms. Allocated memory is still 117.4MB. Free memory was 61.6MB in the beginning and 43.0MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.21ms. Allocated memory is still 117.4MB. Free memory was 43.0MB in the beginning and 42.5MB in the end (delta: 535.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 20:21:37,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm --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 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:21:40,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:21:40,229 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 20:21:40,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:21:40,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:21:40,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:21:40,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:21:40,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:21:40,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:21:40,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:21:40,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:21:40,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:21:40,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:21:40,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:21:40,259 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 20:21:40,259 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 20:21:40,259 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:21:40,259 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 20:21:40,259 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 20:21:40,259 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 20:21:40,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:21:40,260 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:21:40,260 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:21:40,260 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:21:40,260 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:21:40,260 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 20:21:40,260 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 20:21:40,260 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:21:40,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:21:40,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:21:40,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:21:40,261 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:21:40,261 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 20:21:40,261 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 20:21:40,261 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 20:21:40,261 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_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm 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 -> 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed [2024-11-13 20:21:40,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:21:40,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:21:40,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:21:40,663 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:21:40,663 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:21:40,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i Unable to find full path for "g++" [2024-11-13 20:21:42,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:21:43,056 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:21:43,056 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i [2024-11-13 20:21:43,080 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/data/a8bfdc7ef/246b99a13f4c49ac902bd7e9cda4fb8c/FLAG5d4fab25b [2024-11-13 20:21:43,106 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/data/a8bfdc7ef/246b99a13f4c49ac902bd7e9cda4fb8c [2024-11-13 20:21:43,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:21:43,112 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:21:43,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:21:43,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:21:43,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:21:43,120 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:21:43" (1/1) ... [2024-11-13 20:21:43,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2837fefd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:43, skipping insertion in model container [2024-11-13 20:21:43,121 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:21:43" (1/1) ... [2024-11-13 20:21:43,185 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:21:44,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:21:44,408 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:21:44,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:21:44,673 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:21:44,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:44 WrapperNode [2024-11-13 20:21:44,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:21:44,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:21:44,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:21:44,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:21:44,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:44" (1/1) ... [2024-11-13 20:21:44,705 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:44" (1/1) ... [2024-11-13 20:21:44,725 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-13 20:21:44,726 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:21:44,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:21:44,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:21:44,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:21:44,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:44" (1/1) ... [2024-11-13 20:21:44,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:44" (1/1) ... [2024-11-13 20:21:44,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:44" (1/1) ... [2024-11-13 20:21:44,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:44" (1/1) ... [2024-11-13 20:21:44,745 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:44" (1/1) ... [2024-11-13 20:21:44,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:44" (1/1) ... [2024-11-13 20:21:44,749 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:44" (1/1) ... [2024-11-13 20:21:44,751 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:44" (1/1) ... [2024-11-13 20:21:44,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:21:44,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:21:44,755 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:21:44,755 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:21:44,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:21:44" (1/1) ... [2024-11-13 20:21:44,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:21:44,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:21:44,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:21:44,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:21:44,814 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 20:21:44,814 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 20:21:44,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 20:21:44,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:21:44,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:21:44,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:21:44,966 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:21:44,968 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:21:45,145 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-13 20:21:45,145 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:21:45,197 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:21:45,197 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 20:21:45,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:21:45 BoogieIcfgContainer [2024-11-13 20:21:45,197 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:21:45,198 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:21:45,198 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:21:45,208 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:21:45,208 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:21:45" (1/1) ... [2024-11-13 20:21:45,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:21:45,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:21:45,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 20:21:45,269 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 20:21:45,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 20:21:45,276 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:21:45,277 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:21:45,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:21:45,283 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:21:45,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 20:21:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:21:45,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:21:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:21:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:21:45,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:21:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:21:45,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 20:21:45,811 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 20:21:45,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:21:45 ImpRootNode [2024-11-13 20:21:45,848 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:21:45,849 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:21:45,849 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:21:45,850 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:21:45,850 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:21:45" (3/4) ... [2024-11-13 20:21:45,854 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 20:21:45,855 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:21:45,858 INFO L158 Benchmark]: Toolchain (without parser) took 2744.41ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 77.3MB in the end (delta: 12.6MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2024-11-13 20:21:45,858 INFO L158 Benchmark]: CDTParser took 4.41ms. Allocated memory is still 117.4MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:21:45,859 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1560.75ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 68.5MB in the end (delta: 21.1MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2024-11-13 20:21:45,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.37ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 66.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:21:45,859 INFO L158 Benchmark]: Boogie Preprocessor took 27.40ms. Allocated memory is still 117.4MB. Free memory was 66.0MB in the beginning and 64.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:21:45,860 INFO L158 Benchmark]: RCFGBuilder took 442.94ms. Allocated memory is still 117.4MB. Free memory was 64.0MB in the beginning and 46.9MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:21:45,860 INFO L158 Benchmark]: CodeCheck took 649.64ms. Allocated memory is still 117.4MB. Free memory was 46.4MB in the beginning and 78.0MB in the end (delta: -31.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:21:45,860 INFO L158 Benchmark]: Witness Printer took 5.63ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 77.3MB in the end (delta: 702.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:21:45,866 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, 16 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 - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_51b_badSink(data) [L1577] 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 4.41ms. Allocated memory is still 117.4MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1560.75ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 68.5MB in the end (delta: 21.1MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.37ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 66.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.40ms. Allocated memory is still 117.4MB. Free memory was 66.0MB in the beginning and 64.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 442.94ms. Allocated memory is still 117.4MB. Free memory was 64.0MB in the beginning and 46.9MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 649.64ms. Allocated memory is still 117.4MB. Free memory was 46.4MB in the beginning and 78.0MB in the end (delta: -31.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.63ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 77.3MB in the end (delta: 702.5kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 20:21:45,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2387929a-03f2-4d5a-ab4e-c4bd5443e8fc/bin/ukojak-verify-EEHR8qb7sm/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