./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk --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 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:58:04,715 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:58:04,829 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 23:58:04,835 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:58:04,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:58:04,870 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:58:04,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:58:04,873 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:58:04,874 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:58:04,876 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:58:04,877 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:58:04,877 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:58:04,877 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:58:04,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:58:04,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:58:04,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:58:04,881 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:58:04,882 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:58:04,882 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:58:04,882 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:58:04,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:58:04,887 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:58:04,887 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:58:04,887 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:58:04,887 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:58:04,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:58:04,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:58:04,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:58:04,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:58:04,889 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:58:04,889 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:58:04,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:58:04,889 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c [2024-11-08 23:58:05,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:58:05,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:58:05,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:58:05,226 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:58:05,226 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:58:05,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i Unable to find full path for "g++" [2024-11-08 23:58:07,255 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:58:07,637 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:58:07,640 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i [2024-11-08 23:58:07,668 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/data/d19e45f7f/d394853d052c4e2a89cd5ea65a30182d/FLAG475c81e8a [2024-11-08 23:58:07,689 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/data/d19e45f7f/d394853d052c4e2a89cd5ea65a30182d [2024-11-08 23:58:07,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:58:07,694 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:58:07,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:58:07,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:58:07,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:58:07,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:58:07" (1/1) ... [2024-11-08 23:58:07,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4705a843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:07, skipping insertion in model container [2024-11-08 23:58:07,707 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:58:07" (1/1) ... [2024-11-08 23:58:07,780 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:58:08,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:58:08,828 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:58:08,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:58:09,074 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:58:09,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:09 WrapperNode [2024-11-08 23:58:09,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:58:09,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:58:09,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:58:09,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:58:09,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:09" (1/1) ... [2024-11-08 23:58:09,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:09" (1/1) ... [2024-11-08 23:58:09,133 INFO L138 Inliner]: procedures = 501, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 70 [2024-11-08 23:58:09,134 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:58:09,134 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:58:09,135 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:58:09,135 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:58:09,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:09" (1/1) ... [2024-11-08 23:58:09,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:09" (1/1) ... [2024-11-08 23:58:09,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:09" (1/1) ... [2024-11-08 23:58:09,149 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:09" (1/1) ... [2024-11-08 23:58:09,154 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:09" (1/1) ... [2024-11-08 23:58:09,156 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:09" (1/1) ... [2024-11-08 23:58:09,158 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:09" (1/1) ... [2024-11-08 23:58:09,159 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:09" (1/1) ... [2024-11-08 23:58:09,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:58:09,162 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:58:09,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:58:09,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:58:09,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:09" (1/1) ... [2024-11-08 23:58:09,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:58:09,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:58:09,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:58:09,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:58:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:58:09,246 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:58:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:58:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:58:09,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:58:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:58:09,468 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:58:09,470 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:58:09,661 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-08 23:58:09,661 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:58:09,723 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:58:09,723 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:58:09,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:58:09 BoogieIcfgContainer [2024-11-08 23:58:09,724 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:58:09,725 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:58:09,725 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:58:09,737 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:58:09,738 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:58:09" (1/1) ... [2024-11-08 23:58:09,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:58:09,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:58:09,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:58:09,803 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:58:09,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:58:09,808 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:58:09,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:58:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:58:09,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:58:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:58:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:58:10,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:58:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:58:10,126 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:58:10,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:58:10 ImpRootNode [2024-11-08 23:58:10,167 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:58:10,168 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:58:10,168 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:58:10,168 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:58:10,169 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:58:09" (3/4) ... [2024-11-08 23:58:10,172 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:58:10,173 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:58:10,174 INFO L158 Benchmark]: Toolchain (without parser) took 2479.97ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 136.3MB in the beginning and 147.8MB in the end (delta: -11.5MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2024-11-08 23:58:10,175 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 123.7MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:58:10,175 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1378.34ms. Allocated memory is still 172.0MB. Free memory was 136.3MB in the beginning and 88.7MB in the end (delta: 47.6MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-11-08 23:58:10,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.82ms. Allocated memory is still 172.0MB. Free memory was 88.7MB in the beginning and 85.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 23:58:10,178 INFO L158 Benchmark]: Boogie Preprocessor took 27.12ms. Allocated memory is still 172.0MB. Free memory was 85.3MB in the beginning and 83.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:58:10,179 INFO L158 Benchmark]: RCFGBuilder took 561.65ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 83.9MB in the beginning and 168.8MB in the end (delta: -84.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 23:58:10,180 INFO L158 Benchmark]: CodeCheck took 442.18ms. Allocated memory is still 207.6MB. Free memory was 168.8MB in the beginning and 147.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 23:58:10,180 INFO L158 Benchmark]: Witness Printer took 5.46ms. Allocated memory is still 207.6MB. Free memory is still 147.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:58:10,185 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: 0.4s, 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: 1587]: 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_sub_53_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_sub_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_53d_badSink(data) [L1587] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 123.7MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1378.34ms. Allocated memory is still 172.0MB. Free memory was 136.3MB in the beginning and 88.7MB in the end (delta: 47.6MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.82ms. Allocated memory is still 172.0MB. Free memory was 88.7MB in the beginning and 85.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.12ms. Allocated memory is still 172.0MB. Free memory was 85.3MB in the beginning and 83.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 561.65ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 83.9MB in the beginning and 168.8MB in the end (delta: -84.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 442.18ms. Allocated memory is still 207.6MB. Free memory was 168.8MB in the beginning and 147.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 5.46ms. Allocated memory is still 207.6MB. Free memory is still 147.8MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:58:10,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk --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 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:58:12,692 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:58:12,806 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 23:58:12,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:58:12,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:58:12,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:58:12,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:58:12,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:58:12,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:58:12,859 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:58:12,860 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:58:12,860 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:58:12,861 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:58:12,861 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:58:12,862 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:58:12,862 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:58:12,862 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:58:12,862 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:58:12,863 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:58:12,863 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:58:12,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:58:12,870 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:58:12,870 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:58:12,870 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:58:12,870 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:58:12,871 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:58:12,871 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:58:12,871 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:58:12,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:58:12,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:58:12,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:58:12,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:58:12,872 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:58:12,873 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:58:12,873 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:58:12,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c [2024-11-08 23:58:13,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:58:13,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:58:13,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:58:13,338 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:58:13,338 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:58:13,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i Unable to find full path for "g++" [2024-11-08 23:58:15,520 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:58:15,961 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:58:15,962 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i [2024-11-08 23:58:15,987 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/data/64bcc635b/640540b38291474da58499faefe60c7c/FLAGcbe19919d [2024-11-08 23:58:16,008 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/data/64bcc635b/640540b38291474da58499faefe60c7c [2024-11-08 23:58:16,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:58:16,014 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:58:16,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:58:16,017 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:58:16,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:58:16,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:58:16" (1/1) ... [2024-11-08 23:58:16,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c3bb15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:16, skipping insertion in model container [2024-11-08 23:58:16,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:58:16" (1/1) ... [2024-11-08 23:58:16,088 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:58:17,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:58:17,136 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:58:17,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:58:17,422 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:58:17,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:17 WrapperNode [2024-11-08 23:58:17,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:58:17,424 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:58:17,424 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:58:17,424 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:58:17,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:17" (1/1) ... [2024-11-08 23:58:17,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:17" (1/1) ... [2024-11-08 23:58:17,489 INFO L138 Inliner]: procedures = 506, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 69 [2024-11-08 23:58:17,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:58:17,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:58:17,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:58:17,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:58:17,501 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:17" (1/1) ... [2024-11-08 23:58:17,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:17" (1/1) ... [2024-11-08 23:58:17,504 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:17" (1/1) ... [2024-11-08 23:58:17,505 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:17" (1/1) ... [2024-11-08 23:58:17,513 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:17" (1/1) ... [2024-11-08 23:58:17,515 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:17" (1/1) ... [2024-11-08 23:58:17,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:17" (1/1) ... [2024-11-08 23:58:17,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:17" (1/1) ... [2024-11-08 23:58:17,523 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:58:17,524 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:58:17,524 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:58:17,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:58:17,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:58:17" (1/1) ... [2024-11-08 23:58:17,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:58:17,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:58:17,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:58:17,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:58:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:58:17,607 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:58:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 23:58:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:58:17,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:58:17,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:58:17,797 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:58:17,799 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:58:18,001 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-08 23:58:18,001 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:58:18,087 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:58:18,088 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:58:18,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:58:18 BoogieIcfgContainer [2024-11-08 23:58:18,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:58:18,090 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:58:18,090 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:58:18,101 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:58:18,102 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:58:18" (1/1) ... [2024-11-08 23:58:18,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:58:18,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:58:18,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:58:18,181 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:58:18,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:58:18,188 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:58:18,188 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:58:18,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:58:18,192 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:58:18,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:58:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:58:18,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:58:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:58:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:58:18,603 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:58:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:58:18,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 23:58:18,656 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:58:18,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:58:18 ImpRootNode [2024-11-08 23:58:18,695 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:58:18,696 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:58:18,696 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:58:18,696 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:58:18,697 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:58:18" (3/4) ... [2024-11-08 23:58:18,701 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:58:18,702 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:58:18,703 INFO L158 Benchmark]: Toolchain (without parser) took 2688.92ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 39.4MB in the beginning and 44.0MB in the end (delta: -4.6MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2024-11-08 23:58:18,703 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 42.5MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:58:18,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1406.54ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 39.3MB in the beginning and 60.9MB in the end (delta: -21.6MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2024-11-08 23:58:18,706 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.57ms. Allocated memory is still 96.5MB. Free memory was 60.9MB in the beginning and 57.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 23:58:18,707 INFO L158 Benchmark]: Boogie Preprocessor took 32.24ms. Allocated memory is still 96.5MB. Free memory was 57.7MB in the beginning and 55.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:58:18,707 INFO L158 Benchmark]: RCFGBuilder took 565.68ms. Allocated memory is still 96.5MB. Free memory was 55.5MB in the beginning and 63.5MB in the end (delta: -8.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 23:58:18,708 INFO L158 Benchmark]: CodeCheck took 605.62ms. Allocated memory is still 96.5MB. Free memory was 63.5MB in the beginning and 44.0MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 23:58:18,709 INFO L158 Benchmark]: Witness Printer took 5.92ms. Allocated memory is still 96.5MB. Free memory is still 44.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:58:18,712 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: 1587]: 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_sub_53_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_sub_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_53d_badSink(data) [L1587] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 42.5MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1406.54ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 39.3MB in the beginning and 60.9MB in the end (delta: -21.6MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.57ms. Allocated memory is still 96.5MB. Free memory was 60.9MB in the beginning and 57.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.24ms. Allocated memory is still 96.5MB. Free memory was 57.7MB in the beginning and 55.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 565.68ms. Allocated memory is still 96.5MB. Free memory was 55.5MB in the beginning and 63.5MB in the end (delta: -8.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 605.62ms. Allocated memory is still 96.5MB. Free memory was 63.5MB in the beginning and 44.0MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 5.92ms. Allocated memory is still 96.5MB. Free memory is still 44.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:58:18,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f71af-ae09-4cce-bdd4-74b9dc9d7a5d/bin/ukojak-verify-ImItNfHLgk/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