./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_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_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/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_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/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_69411ad2-f0ef-455b-ae79-732dd2009278/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 4669188c2b812b949944765e4a42b73f4c1b71352a3ff8223dd1434f62c953f1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:05:34,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:05:34,253 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 21:05:34,258 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:05:34,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:05:34,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:05:34,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:05:34,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:05:34,281 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:05:34,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:05:34,281 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:05:34,281 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:05:34,281 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:05:34,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:05:34,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:05:34,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:05:34,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:05:34,281 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:05:34,282 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:05:34,282 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:05:34,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:05:34,282 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:05:34,282 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:05:34,282 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:05:34,282 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:05:34,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:05:34,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:05:34,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:05:34,283 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:05:34,283 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:05:34,283 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:05:34,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:05:34,284 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_69411ad2-f0ef-455b-ae79-732dd2009278/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 -> 4669188c2b812b949944765e4a42b73f4c1b71352a3ff8223dd1434f62c953f1 [2024-11-13 21:05:34,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:05:34,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:05:34,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:05:34,581 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:05:34,582 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:05:34,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_bad.i Unable to find full path for "g++" [2024-11-13 21:05:36,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:05:36,911 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:05:36,912 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_bad.i [2024-11-13 21:05:36,935 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/data/5f39b22ac/e331909e57b8415d9fb9b19e9a6b946d/FLAGf0de547a0 [2024-11-13 21:05:36,957 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/data/5f39b22ac/e331909e57b8415d9fb9b19e9a6b946d [2024-11-13 21:05:36,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:05:36,962 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:05:36,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:05:36,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:05:36,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:05:36,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:05:36" (1/1) ... [2024-11-13 21:05:36,973 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aeeabad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:36, skipping insertion in model container [2024-11-13 21:05:36,973 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:05:36" (1/1) ... [2024-11-13 21:05:37,036 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:05:38,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:05:38,214 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:05:38,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:05:38,540 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:05:38,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:38 WrapperNode [2024-11-13 21:05:38,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:05:38,544 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:05:38,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:05:38,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:05:38,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:38" (1/1) ... [2024-11-13 21:05:38,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:38" (1/1) ... [2024-11-13 21:05:38,642 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 73 [2024-11-13 21:05:38,643 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:05:38,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:05:38,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:05:38,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:05:38,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:38" (1/1) ... [2024-11-13 21:05:38,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:38" (1/1) ... [2024-11-13 21:05:38,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:38" (1/1) ... [2024-11-13 21:05:38,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:38" (1/1) ... [2024-11-13 21:05:38,677 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:38" (1/1) ... [2024-11-13 21:05:38,683 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:38" (1/1) ... [2024-11-13 21:05:38,689 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:38" (1/1) ... [2024-11-13 21:05:38,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:38" (1/1) ... [2024-11-13 21:05:38,696 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:05:38,697 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:05:38,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:05:38,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:05:38,699 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:38" (1/1) ... [2024-11-13 21:05:38,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:05:38,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:05:38,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:05:38,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:05:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:05:38,773 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:05:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:05:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:05:38,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:05:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:05:38,971 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:05:38,974 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:05:39,146 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-13 21:05:39,147 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:05:39,229 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:05:39,230 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:05:39,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:39 BoogieIcfgContainer [2024-11-13 21:05:39,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:05:39,231 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:05:39,231 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:05:39,243 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:05:39,244 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:39" (1/1) ... [2024-11-13 21:05:39,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:05:39,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:05:39,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 21:05:39,333 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 21:05:39,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:05:39,339 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:05:39,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:05:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:39,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:05:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:39,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:05:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:39,857 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:05:39,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:05:39 ImpRootNode [2024-11-13 21:05:39,909 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:05:39,912 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:05:39,912 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:05:39,912 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:05:39,913 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:39" (3/4) ... [2024-11-13 21:05:39,917 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:05:39,918 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:05:39,921 INFO L158 Benchmark]: Toolchain (without parser) took 2958.92ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 41.8MB in the end (delta: 47.8MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-11-13 21:05:39,923 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:39,924 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1579.66ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 80.4MB in the end (delta: 9.1MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-13 21:05:39,924 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.23ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 77.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:39,926 INFO L158 Benchmark]: Boogie Preprocessor took 51.79ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 76.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:39,927 INFO L158 Benchmark]: RCFGBuilder took 533.13ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 61.5MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:05:39,929 INFO L158 Benchmark]: CodeCheck took 678.52ms. Allocated memory is still 117.4MB. Free memory was 61.5MB in the beginning and 41.8MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:05:39,930 INFO L158 Benchmark]: Witness Printer took 7.74ms. Allocated memory is still 117.4MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:39,934 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, 0.1s 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1570, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1570] 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) [L1570] 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] [L1571] CALL CWE191_Integer_Underflow__int_fgets_predec_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_fgets_predec_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] CALL funcPtr(data) [L1578] --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 0.39ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1579.66ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 80.4MB in the end (delta: 9.1MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.23ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 77.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.79ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 76.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 533.13ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 61.5MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 678.52ms. Allocated memory is still 117.4MB. Free memory was 61.5MB in the beginning and 41.8MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 7.74ms. Allocated memory is still 117.4MB. Free memory is still 41.8MB. 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 21:05:39,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/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 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_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/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_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/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_69411ad2-f0ef-455b-ae79-732dd2009278/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 4669188c2b812b949944765e4a42b73f4c1b71352a3ff8223dd1434f62c953f1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:05:42,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:05:42,819 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 21:05:42,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:05:42,865 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:05:42,865 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:05:42,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:05:42,866 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:05:42,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:05:42,866 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:05:42,866 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:05:42,866 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:05:42,866 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:05:42,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:05:42,870 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 21:05:42,870 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 21:05:42,870 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:05:42,870 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:05:42,870 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 21:05:42,871 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:05:42,871 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:05:42,871 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:05:42,871 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:05:42,871 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:05:42,871 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:05:42,871 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:05:42,872 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 21:05:42,872 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:05:42,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:05:42,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:05:42,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:05:42,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:05:42,872 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 21:05:42,872 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:05:42,872 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 21:05:42,872 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_69411ad2-f0ef-455b-ae79-732dd2009278/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 -> 4669188c2b812b949944765e4a42b73f4c1b71352a3ff8223dd1434f62c953f1 [2024-11-13 21:05:43,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:05:43,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:05:43,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:05:43,224 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:05:43,224 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:05:43,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_bad.i Unable to find full path for "g++" [2024-11-13 21:05:45,122 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:05:45,523 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:05:45,524 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_bad.i [2024-11-13 21:05:45,565 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/data/d7492ec28/46b77c1ffdb24fe4894154d4a62d93b8/FLAGc27e8c9d7 [2024-11-13 21:05:45,587 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/data/d7492ec28/46b77c1ffdb24fe4894154d4a62d93b8 [2024-11-13 21:05:45,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:05:45,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:05:45,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:05:45,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:05:45,599 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:05:45,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:05:45" (1/1) ... [2024-11-13 21:05:45,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e6a6b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:45, skipping insertion in model container [2024-11-13 21:05:45,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:05:45" (1/1) ... [2024-11-13 21:05:45,668 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:05:46,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:05:46,576 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:05:46,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:05:46,887 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:05:46,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:46 WrapperNode [2024-11-13 21:05:46,888 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:05:46,888 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:05:46,889 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:05:46,889 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:05:46,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:46" (1/1) ... [2024-11-13 21:05:46,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:46" (1/1) ... [2024-11-13 21:05:46,961 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 72 [2024-11-13 21:05:46,963 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:05:46,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:05:46,964 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:05:46,964 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:05:46,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:46" (1/1) ... [2024-11-13 21:05:46,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:46" (1/1) ... [2024-11-13 21:05:46,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:46" (1/1) ... [2024-11-13 21:05:46,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:46" (1/1) ... [2024-11-13 21:05:46,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:46" (1/1) ... [2024-11-13 21:05:46,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:46" (1/1) ... [2024-11-13 21:05:47,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:46" (1/1) ... [2024-11-13 21:05:47,002 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:46" (1/1) ... [2024-11-13 21:05:47,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:05:47,009 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:05:47,012 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:05:47,013 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:05:47,014 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:46" (1/1) ... [2024-11-13 21:05:47,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:05:47,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:05:47,051 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:05:47,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:05:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:05:47,083 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:05:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 21:05:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:05:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:05:47,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:05:47,262 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:05:47,264 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:05:47,430 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-13 21:05:47,430 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:05:47,484 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:05:47,484 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:05:47,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:47 BoogieIcfgContainer [2024-11-13 21:05:47,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:05:47,485 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:05:47,485 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:05:47,495 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:05:47,496 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:47" (1/1) ... [2024-11-13 21:05:47,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:05:47,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:05:47,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 21:05:47,552 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 21:05:47,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:05:47,556 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:05:47,557 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:05:47,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:05:47,559 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:05:47,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 21:05:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:47,802 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:05:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:47,960 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:05:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:48,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 21:05:48,003 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:05:48,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:05:48 ImpRootNode [2024-11-13 21:05:48,029 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:05:48,030 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:05:48,030 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:05:48,030 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:05:48,031 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:47" (3/4) ... [2024-11-13 21:05:48,034 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:05:48,035 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:05:48,036 INFO L158 Benchmark]: Toolchain (without parser) took 2444.01ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 32.8MB in the end (delta: 24.0MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2024-11-13 21:05:48,036 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory was 65.1MB in the beginning and 65.0MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:48,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1294.06ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 49.9MB in the end (delta: 6.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-13 21:05:48,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.85ms. Allocated memory is still 83.9MB. Free memory was 49.9MB in the beginning and 47.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:48,037 INFO L158 Benchmark]: Boogie Preprocessor took 44.96ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 45.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:48,038 INFO L158 Benchmark]: RCFGBuilder took 475.35ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 52.0MB in the end (delta: -6.5MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2024-11-13 21:05:48,038 INFO L158 Benchmark]: CodeCheck took 544.35ms. Allocated memory is still 83.9MB. Free memory was 52.0MB in the beginning and 33.2MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:05:48,039 INFO L158 Benchmark]: Witness Printer took 4.63ms. Allocated memory is still 83.9MB. Free memory was 33.2MB in the beginning and 32.8MB in the end (delta: 416.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:48,041 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: 0.5s, 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1570, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1570] 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) [L1570] 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] [L1571] CALL CWE191_Integer_Underflow__int_fgets_predec_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_fgets_predec_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] CALL funcPtr(data) [L1578] --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 83.9MB. Free memory was 65.1MB in the beginning and 65.0MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1294.06ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 49.9MB in the end (delta: 6.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.85ms. Allocated memory is still 83.9MB. Free memory was 49.9MB in the beginning and 47.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.96ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 45.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 475.35ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 52.0MB in the end (delta: -6.5MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * CodeCheck took 544.35ms. Allocated memory is still 83.9MB. Free memory was 52.0MB in the beginning and 33.2MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.63ms. Allocated memory is still 83.9MB. Free memory was 33.2MB in the beginning and 32.8MB in the end (delta: 416.6kB). 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 21:05:48,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69411ad2-f0ef-455b-ae79-732dd2009278/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample