./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3 --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 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:44:18,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:44:18,168 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 02:44:18,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:44:18,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:44:18,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:44:18,198 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:44:18,199 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:44:18,199 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:44:18,199 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:44:18,199 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:44:18,199 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:44:18,200 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:44:18,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:44:18,200 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:44:18,200 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:44:18,200 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:44:18,200 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:44:18,200 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:44:18,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:44:18,201 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:44:18,201 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:44:18,201 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:44:18,201 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:44:18,201 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:44:18,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:44:18,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:44:18,201 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:44:18,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:44:18,202 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:44:18,202 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:44:18,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:44:18,202 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_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3 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 -> 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 [2024-11-25 02:44:18,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:44:18,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:44:18,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:44:18,577 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:44:18,578 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:44:18,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2024-11-25 02:44:21,536 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/data/02d62d291/b436fc378d744bc2b3ed7d6986c6cd72/FLAG3f0f676a5 [2024-11-25 02:44:22,045 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:44:22,045 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2024-11-25 02:44:22,085 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/data/02d62d291/b436fc378d744bc2b3ed7d6986c6cd72/FLAG3f0f676a5 [2024-11-25 02:44:22,109 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/data/02d62d291/b436fc378d744bc2b3ed7d6986c6cd72 [2024-11-25 02:44:22,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:44:22,116 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:44:22,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:44:22,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:44:22,129 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:44:22,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:44:22" (1/1) ... [2024-11-25 02:44:22,132 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70fae16e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:22, skipping insertion in model container [2024-11-25 02:44:22,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:44:22" (1/1) ... [2024-11-25 02:44:22,176 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:44:23,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:44:23,153 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:44:23,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:44:23,393 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:44:23,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:23 WrapperNode [2024-11-25 02:44:23,395 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:44:23,396 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:44:23,396 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:44:23,396 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:44:23,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:23" (1/1) ... [2024-11-25 02:44:23,433 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:23" (1/1) ... [2024-11-25 02:44:23,464 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-11-25 02:44:23,464 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:44:23,465 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:44:23,465 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:44:23,465 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:44:23,472 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:23" (1/1) ... [2024-11-25 02:44:23,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:23" (1/1) ... [2024-11-25 02:44:23,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:23" (1/1) ... [2024-11-25 02:44:23,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:23" (1/1) ... [2024-11-25 02:44:23,485 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:23" (1/1) ... [2024-11-25 02:44:23,490 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:23" (1/1) ... [2024-11-25 02:44:23,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:23" (1/1) ... [2024-11-25 02:44:23,493 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:23" (1/1) ... [2024-11-25 02:44:23,497 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:23" (1/1) ... [2024-11-25 02:44:23,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:44:23,500 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:44:23,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:44:23,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:44:23,505 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:23" (1/1) ... [2024-11-25 02:44:23,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:44:23,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:44:23,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:44:23,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:44:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:44:23,586 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:44:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:44:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:44:23,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:44:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:44:23,758 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:44:23,760 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:44:23,861 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-25 02:44:23,861 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:44:23,920 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:44:23,920 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:44:23,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:44:23 BoogieIcfgContainer [2024-11-25 02:44:23,921 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:44:23,922 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:44:23,922 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:44:23,936 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:44:23,936 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:44:23" (1/1) ... [2024-11-25 02:44:23,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:44:23,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:44:24,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:44:24,010 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:44:24,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:44:24,016 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:44:24,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:44:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:44:24,174 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:44:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:44:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:44:24,303 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:44:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:44:24,354 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 02:44:24,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:44:24 ImpRootNode [2024-11-25 02:44:24,391 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:44:24,392 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:44:24,392 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:44:24,392 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:44:24,393 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:44:23" (3/4) ... [2024-11-25 02:44:24,395 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:44:24,396 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:44:24,397 INFO L158 Benchmark]: Toolchain (without parser) took 2282.10ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 45.7MB in the end (delta: 46.0MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2024-11-25 02:44:24,398 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:44:24,399 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1277.52ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 82.2MB in the end (delta: 9.2MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-25 02:44:24,400 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.15ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 79.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:44:24,400 INFO L158 Benchmark]: Boogie Preprocessor took 34.52ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:44:24,400 INFO L158 Benchmark]: RCFGBuilder took 421.25ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 64.5MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:44:24,401 INFO L158 Benchmark]: CodeCheck took 469.82ms. Allocated memory is still 117.4MB. Free memory was 64.5MB in the beginning and 45.7MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:44:24,401 INFO L158 Benchmark]: Witness Printer took 4.49ms. Allocated memory is still 117.4MB. Free memory is still 45.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:44:24,405 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1563, overapproximation of fgets at line 1561. 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); [L1575] 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) [L1575] 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] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_41_bad() [L1557] int data; [L1558] data = 0 [L1560] 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] [L1561] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1563] data = atoi(inputBuffer) [L1570] CALL badSink(data) [L1551] 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 0.37ms. Allocated memory is still 142.6MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1277.52ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 82.2MB in the end (delta: 9.2MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.15ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 79.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.52ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 421.25ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 64.5MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 469.82ms. Allocated memory is still 117.4MB. Free memory was 64.5MB in the beginning and 45.7MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.49ms. Allocated memory is still 117.4MB. Free memory is still 45.7MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:44:24,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/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_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3 --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 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:44:27,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:44:27,326 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 02:44:27,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:44:27,389 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:44:27,390 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:44:27,390 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:44:27,391 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:44:27,391 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:44:27,392 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:44:27,393 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:44:27,393 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:44:27,393 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:44:27,393 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:44:27,393 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 02:44:27,393 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 02:44:27,394 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:44:27,394 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 02:44:27,394 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:44:27,394 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:44:27,394 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:44:27,394 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:44:27,395 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:44:27,395 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:44:27,395 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:44:27,395 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:44:27,395 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 02:44:27,395 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:44:27,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:44:27,396 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:44:27,397 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:44:27,397 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:44:27,397 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 02:44:27,397 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:44:27,397 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 02:44:27,397 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_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3 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 -> 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 [2024-11-25 02:44:27,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:44:27,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:44:27,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:44:27,770 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:44:27,771 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:44:27,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2024-11-25 02:44:30,874 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/data/34b588a18/9c382e40917240f99f01f10da34fba08/FLAG59424ccf2 [2024-11-25 02:44:31,299 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:44:31,300 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2024-11-25 02:44:31,325 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/data/34b588a18/9c382e40917240f99f01f10da34fba08/FLAG59424ccf2 [2024-11-25 02:44:31,341 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/data/34b588a18/9c382e40917240f99f01f10da34fba08 [2024-11-25 02:44:31,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:44:31,346 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:44:31,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:44:31,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:44:31,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:44:31,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:44:31" (1/1) ... [2024-11-25 02:44:31,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a24754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:31, skipping insertion in model container [2024-11-25 02:44:31,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:44:31" (1/1) ... [2024-11-25 02:44:31,406 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:44:32,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:44:32,527 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:44:32,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:44:32,802 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:44:32,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:32 WrapperNode [2024-11-25 02:44:32,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:44:32,805 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:44:32,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:44:32,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:44:32,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:32" (1/1) ... [2024-11-25 02:44:32,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:32" (1/1) ... [2024-11-25 02:44:32,880 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-11-25 02:44:32,883 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:44:32,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:44:32,884 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:44:32,884 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:44:32,892 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:32" (1/1) ... [2024-11-25 02:44:32,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:32" (1/1) ... [2024-11-25 02:44:32,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:32" (1/1) ... [2024-11-25 02:44:32,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:32" (1/1) ... [2024-11-25 02:44:32,910 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:32" (1/1) ... [2024-11-25 02:44:32,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:32" (1/1) ... [2024-11-25 02:44:32,916 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:32" (1/1) ... [2024-11-25 02:44:32,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:32" (1/1) ... [2024-11-25 02:44:32,923 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:32" (1/1) ... [2024-11-25 02:44:32,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:44:32,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:44:32,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:44:32,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:44:32,935 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:44:32" (1/1) ... [2024-11-25 02:44:32,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:44:32,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:44:32,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:44:32,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:44:33,015 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:44:33,015 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:44:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 02:44:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:44:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:44:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:44:33,194 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:44:33,196 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:44:33,343 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-25 02:44:33,343 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:44:33,419 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:44:33,419 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:44:33,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:44:33 BoogieIcfgContainer [2024-11-25 02:44:33,420 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:44:33,421 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:44:33,421 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:44:33,433 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:44:33,433 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:44:33" (1/1) ... [2024-11-25 02:44:33,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:44:33,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:44:33,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:44:33,502 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:44:33,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:44:33,507 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:44:33,510 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:44:33,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:44:33,513 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:44:33,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 02:44:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:44:33,752 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:44:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:44:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:44:33,893 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:44:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:44:33,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-25 02:44:33,950 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 02:44:33,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:44:33 ImpRootNode [2024-11-25 02:44:33,993 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:44:33,995 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:44:33,995 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:44:33,996 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:44:33,998 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:44:33" (3/4) ... [2024-11-25 02:44:34,001 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:44:34,002 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:44:34,003 INFO L158 Benchmark]: Toolchain (without parser) took 2657.44ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 89.3MB in the beginning and 219.6MB in the end (delta: -130.2MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2024-11-25 02:44:34,005 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:44:34,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1457.03ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 66.2MB in the end (delta: 22.9MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2024-11-25 02:44:34,006 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.33ms. Allocated memory is still 117.4MB. Free memory was 66.2MB in the beginning and 63.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:44:34,006 INFO L158 Benchmark]: Boogie Preprocessor took 46.18ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 61.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:44:34,007 INFO L158 Benchmark]: RCFGBuilder took 490.17ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 45.6MB in the end (delta: 16.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:44:34,009 INFO L158 Benchmark]: CodeCheck took 572.27ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 45.6MB in the beginning and 219.6MB in the end (delta: -174.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:44:34,009 INFO L158 Benchmark]: Witness Printer took 7.30ms. Allocated memory is still 260.0MB. Free memory was 219.6MB in the beginning and 219.6MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:44:34,015 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1563, overapproximation of fgets at line 1561. 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); [L1575] 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) [L1575] 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] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_41_bad() [L1557] int data; [L1558] data = 0 [L1560] 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] [L1561] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1563] data = atoi(inputBuffer) [L1570] CALL badSink(data) [L1551] 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 0.49ms. Allocated memory is still 117.4MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1457.03ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 66.2MB in the end (delta: 22.9MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.33ms. Allocated memory is still 117.4MB. Free memory was 66.2MB in the beginning and 63.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.18ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 61.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 490.17ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 45.6MB in the end (delta: 16.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 572.27ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 45.6MB in the beginning and 219.6MB in the end (delta: -174.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.30ms. Allocated memory is still 260.0MB. Free memory was 219.6MB in the beginning and 219.6MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:44:34,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15db0ef-abee-41d5-bbf8-7b53211e1e9d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample