./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_22_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7dd2ebae3e4efedbc7c5167fcbd380e697a52b1008674458a69e2697e3b8a545 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:45:35,907 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:45:36,009 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 21:45:36,022 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:45:36,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:45:36,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:45:36,057 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:45:36,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:45:36,058 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:45:36,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:45:36,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:45:36,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:45:36,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:45:36,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:45:36,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:45:36,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:45:36,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:45:36,061 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:45:36,061 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:45:36,061 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:45:36,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:45:36,062 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:45:36,062 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:45:36,062 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:45:36,062 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:45:36,062 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:45:36,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:45:36,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:45:36,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:45:36,063 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:45:36,063 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:45:36,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:45:36,063 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_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dd2ebae3e4efedbc7c5167fcbd380e697a52b1008674458a69e2697e3b8a545 [2024-11-13 21:45:36,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:45:36,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:45:36,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:45:36,440 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:45:36,440 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:45:36,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_22_bad.i Unable to find full path for "g++" [2024-11-13 21:45:38,308 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:45:38,762 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:45:38,763 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_22_bad.i [2024-11-13 21:45:38,792 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/data/ba70a2e57/1bfa70b46ee04d65a7c23f9cf985917b/FLAG582596c22 [2024-11-13 21:45:38,806 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/data/ba70a2e57/1bfa70b46ee04d65a7c23f9cf985917b [2024-11-13 21:45:38,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:45:38,810 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:45:38,811 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:45:38,811 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:45:38,816 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:45:38,817 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:45:38" (1/1) ... [2024-11-13 21:45:38,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d74e212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:38, skipping insertion in model container [2024-11-13 21:45:38,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:45:38" (1/1) ... [2024-11-13 21:45:38,881 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:45:39,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:45:39,817 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:45:39,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:45:40,055 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:45:40,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:40 WrapperNode [2024-11-13 21:45:40,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:45:40,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:45:40,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:45:40,059 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:45:40,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:40" (1/1) ... [2024-11-13 21:45:40,100 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:40" (1/1) ... [2024-11-13 21:45:40,130 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-13 21:45:40,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:45:40,131 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:45:40,131 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:45:40,131 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:45:40,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:40" (1/1) ... [2024-11-13 21:45:40,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:40" (1/1) ... [2024-11-13 21:45:40,145 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:40" (1/1) ... [2024-11-13 21:45:40,146 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:40" (1/1) ... [2024-11-13 21:45:40,154 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:40" (1/1) ... [2024-11-13 21:45:40,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:40" (1/1) ... [2024-11-13 21:45:40,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:40" (1/1) ... [2024-11-13 21:45:40,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:40" (1/1) ... [2024-11-13 21:45:40,169 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:45:40,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:45:40,169 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:45:40,169 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:45:40,175 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:40" (1/1) ... [2024-11-13 21:45:40,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:45:40,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:45:40,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:45:40,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:45:40,244 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:45:40,245 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:45:40,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:45:40,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:45:40,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:45:40,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:45:40,453 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:45:40,455 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:45:40,598 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-13 21:45:40,598 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:45:40,665 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:45:40,666 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:45:40,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:45:40 BoogieIcfgContainer [2024-11-13 21:45:40,667 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:45:40,668 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:45:40,668 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:45:40,679 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:45:40,679 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:45:40" (1/1) ... [2024-11-13 21:45:40,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:45:40,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:45:40,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-13 21:45:40,732 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 21:45:40,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 21:45:40,736 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:45:40,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:45:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:45:40,865 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:45:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:45:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:45:40,995 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:45:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:45:41,053 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:45:41,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:45:41 ImpRootNode [2024-11-13 21:45:41,092 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:45:41,095 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:45:41,095 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:45:41,095 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:45:41,096 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:45:40" (3/4) ... [2024-11-13 21:45:41,098 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:45:41,099 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:45:41,100 INFO L158 Benchmark]: Toolchain (without parser) took 2290.04ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 86.0MB in the end (delta: 30.2MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2024-11-13 21:45:41,100 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:45:41,101 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1246.32ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 55.8MB in the end (delta: 60.0MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-13 21:45:41,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.34ms. Allocated memory is still 142.6MB. Free memory was 55.8MB in the beginning and 53.2MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:45:41,101 INFO L158 Benchmark]: Boogie Preprocessor took 37.96ms. Allocated memory is still 142.6MB. Free memory was 53.2MB in the beginning and 52.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:45:41,102 INFO L158 Benchmark]: RCFGBuilder took 497.86ms. Allocated memory is still 142.6MB. Free memory was 52.2MB in the beginning and 106.1MB in the end (delta: -53.9MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-11-13 21:45:41,102 INFO L158 Benchmark]: CodeCheck took 425.07ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 86.8MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:45:41,103 INFO L158 Benchmark]: Witness Printer took 4.26ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 86.0MB in the end (delta: 770.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:45:41,105 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, 18 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 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: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1571, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] int CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal = 0; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=0, 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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_postdec_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=0, 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_postdec_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal) [L1582] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=1, 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 0.34ms. Allocated memory is still 167.8MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1246.32ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 55.8MB in the end (delta: 60.0MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.34ms. Allocated memory is still 142.6MB. Free memory was 55.8MB in the beginning and 53.2MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.96ms. Allocated memory is still 142.6MB. Free memory was 53.2MB in the beginning and 52.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 497.86ms. Allocated memory is still 142.6MB. Free memory was 52.2MB in the beginning and 106.1MB in the end (delta: -53.9MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * CodeCheck took 425.07ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 86.8MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.26ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 86.0MB in the end (delta: 770.1kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 21:45:41,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7dd2ebae3e4efedbc7c5167fcbd380e697a52b1008674458a69e2697e3b8a545 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:45:43,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:45:43,830 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 21:45:43,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:45:43,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:45:43,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:45:43,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:45:43,903 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:45:43,903 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:45:43,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:45:43,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:45:43,904 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:45:43,904 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:45:43,905 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:45:43,905 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 21:45:43,905 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 21:45:43,905 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:45:43,905 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:45:43,906 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 21:45:43,906 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:45:43,906 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:45:43,906 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:45:43,906 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:45:43,906 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:45:43,907 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:45:43,907 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:45:43,907 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 21:45:43,907 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:45:43,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:45:43,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:45:43,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:45:43,908 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:45:43,908 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 21:45:43,908 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:45:43,908 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 21:45:43,908 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_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dd2ebae3e4efedbc7c5167fcbd380e697a52b1008674458a69e2697e3b8a545 [2024-11-13 21:45:44,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:45:44,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:45:44,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:45:44,276 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:45:44,277 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:45:44,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_22_bad.i Unable to find full path for "g++" [2024-11-13 21:45:46,167 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:45:46,615 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:45:46,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_22_bad.i [2024-11-13 21:45:46,643 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/data/68a6dd94a/9aca73547583418881bf5aef881e5350/FLAGc23d6d712 [2024-11-13 21:45:46,658 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/data/68a6dd94a/9aca73547583418881bf5aef881e5350 [2024-11-13 21:45:46,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:45:46,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:45:46,662 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:45:46,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:45:46,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:45:46,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:45:46" (1/1) ... [2024-11-13 21:45:46,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e9c817d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:46, skipping insertion in model container [2024-11-13 21:45:46,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:45:46" (1/1) ... [2024-11-13 21:45:46,715 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:45:47,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:45:47,897 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:45:48,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:45:48,184 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:45:48,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:48 WrapperNode [2024-11-13 21:45:48,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:45:48,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:45:48,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:45:48,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:45:48,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:48" (1/1) ... [2024-11-13 21:45:48,233 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:48" (1/1) ... [2024-11-13 21:45:48,266 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 71 [2024-11-13 21:45:48,266 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:45:48,267 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:45:48,267 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:45:48,267 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:45:48,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:48" (1/1) ... [2024-11-13 21:45:48,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:48" (1/1) ... [2024-11-13 21:45:48,286 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:48" (1/1) ... [2024-11-13 21:45:48,286 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:48" (1/1) ... [2024-11-13 21:45:48,300 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:48" (1/1) ... [2024-11-13 21:45:48,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:48" (1/1) ... [2024-11-13 21:45:48,308 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:48" (1/1) ... [2024-11-13 21:45:48,312 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:48" (1/1) ... [2024-11-13 21:45:48,315 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:45:48,316 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:45:48,316 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:45:48,316 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:45:48,317 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:45:48" (1/1) ... [2024-11-13 21:45:48,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:45:48,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:45:48,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:45:48,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:45:48,382 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:45:48,383 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:45:48,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 21:45:48,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:45:48,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:45:48,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:45:48,594 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:45:48,596 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:45:48,761 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-13 21:45:48,761 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:45:48,835 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:45:48,835 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:45:48,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:45:48 BoogieIcfgContainer [2024-11-13 21:45:48,836 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:45:48,836 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:45:48,839 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:45:48,847 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:45:48,847 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:45:48" (1/1) ... [2024-11-13 21:45:48,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:45:48,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:45:48,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-13 21:45:48,916 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 21:45:48,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 21:45:48,920 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:45:48,920 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:45:48,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:45:48,925 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:45:48,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 21:45:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:45:49,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:45:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:45:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:45:49,344 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:45:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:45:49,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 21:45:49,393 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:45:49,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:45:49 ImpRootNode [2024-11-13 21:45:49,431 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:45:49,432 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:45:49,433 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:45:49,433 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:45:49,434 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:45:48" (3/4) ... [2024-11-13 21:45:49,437 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:45:49,438 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:45:49,439 INFO L158 Benchmark]: Toolchain (without parser) took 2777.96ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 76.1MB in the end (delta: 16.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-13 21:45:49,441 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:45:49,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1522.81ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 79.2MB in the end (delta: 12.8MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-13 21:45:49,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.45ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 76.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:45:49,443 INFO L158 Benchmark]: Boogie Preprocessor took 48.96ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 74.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:45:49,443 INFO L158 Benchmark]: RCFGBuilder took 519.64ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 57.1MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:45:49,443 INFO L158 Benchmark]: CodeCheck took 594.77ms. Allocated memory is still 117.4MB. Free memory was 57.1MB in the beginning and 76.7MB in the end (delta: -19.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:45:49,444 INFO L158 Benchmark]: Witness Printer took 5.74ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 76.1MB in the end (delta: 604.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:45:49,450 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, 18 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, 9 NumberOfCodeBlocks, 9 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: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1571, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] int CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal = 0; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=0, 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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_postdec_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=0, 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_postdec_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal) [L1582] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1522.81ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 79.2MB in the end (delta: 12.8MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.45ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 76.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.96ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 74.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 519.64ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 57.1MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 594.77ms. Allocated memory is still 117.4MB. Free memory was 57.1MB in the beginning and 76.7MB in the end (delta: -19.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.74ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 76.1MB in the end (delta: 604.2kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 21:45:49,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de04d7d3-d32a-4b04-9c5b-83b839ff3de3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample