./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_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_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/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_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/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_7368e7af-afcd-45be-a497-4f3ac2423d5f/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 b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:19:05,899 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:19:05,969 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 21:19:05,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:19:05,976 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:19:06,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:19:06,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:19:06,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:19:06,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:19:06,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:19:06,013 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:19:06,013 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:19:06,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:19:06,013 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:19:06,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:19:06,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:19:06,014 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:19:06,015 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:19:06,015 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:19:06,015 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:19:06,015 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:19:06,015 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:19:06,015 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:19:06,015 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:19:06,016 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:19:06,016 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:19:06,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:19:06,016 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:19:06,016 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:19:06,016 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:19:06,016 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:19:06,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:19:06,017 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_7368e7af-afcd-45be-a497-4f3ac2423d5f/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 -> b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb [2024-11-13 21:19:06,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:19:06,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:19:06,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:19:06,364 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:19:06,365 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:19:06,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i Unable to find full path for "g++" [2024-11-13 21:19:08,222 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:19:08,716 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:19:08,720 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-11-13 21:19:08,755 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/data/226ca1cd1/bc52bb52a52f4ec493550e991efceb8f/FLAG8e75c11b8 [2024-11-13 21:19:08,778 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/data/226ca1cd1/bc52bb52a52f4ec493550e991efceb8f [2024-11-13 21:19:08,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:19:08,784 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:19:08,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:19:08,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:19:08,791 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:19:08,793 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:19:08" (1/1) ... [2024-11-13 21:19:08,794 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b8c89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:08, skipping insertion in model container [2024-11-13 21:19:08,794 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:19:08" (1/1) ... [2024-11-13 21:19:08,854 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:19:09,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:19:09,897 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:19:09,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:19:10,156 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:19:10,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:10 WrapperNode [2024-11-13 21:19:10,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:19:10,157 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:19:10,158 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:19:10,158 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:19:10,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:10" (1/1) ... [2024-11-13 21:19:10,185 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:10" (1/1) ... [2024-11-13 21:19:10,206 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-13 21:19:10,207 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:19:10,207 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:19:10,207 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:19:10,207 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:19:10,214 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:10" (1/1) ... [2024-11-13 21:19:10,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:10" (1/1) ... [2024-11-13 21:19:10,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:10" (1/1) ... [2024-11-13 21:19:10,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:10" (1/1) ... [2024-11-13 21:19:10,222 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:10" (1/1) ... [2024-11-13 21:19:10,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:10" (1/1) ... [2024-11-13 21:19:10,231 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:10" (1/1) ... [2024-11-13 21:19:10,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:10" (1/1) ... [2024-11-13 21:19:10,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:19:10,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:19:10,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:19:10,235 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:19:10,236 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:10" (1/1) ... [2024-11-13 21:19:10,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:19:10,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:19:10,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:19:10,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:19:10,300 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:19:10,300 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:19:10,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:19:10,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:19:10,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:19:10,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:19:10,473 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:19:10,475 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:19:10,614 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-13 21:19:10,614 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:19:10,670 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:19:10,670 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:19:10,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:19:10 BoogieIcfgContainer [2024-11-13 21:19:10,671 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:19:10,671 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:19:10,671 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:19:10,681 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:19:10,681 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:19:10" (1/1) ... [2024-11-13 21:19:10,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:19:10,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:19:10,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-13 21:19:10,750 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 21:19:10,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 21:19:10,756 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:19:10,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:19:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:19:10,895 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:19:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:19:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:19:11,024 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:19:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:19:11,071 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:19:11,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:19:11 ImpRootNode [2024-11-13 21:19:11,097 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:19:11,097 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:19:11,098 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:19:11,098 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:19:11,098 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:19:10" (3/4) ... [2024-11-13 21:19:11,101 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:19:11,102 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:19:11,103 INFO L158 Benchmark]: Toolchain (without parser) took 2318.82ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 42.0MB in the end (delta: 47.0MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2024-11-13 21:19:11,103 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:19:11,104 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1369.98ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 79.5MB in the end (delta: 9.4MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2024-11-13 21:19:11,104 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.22ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 76.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:19:11,105 INFO L158 Benchmark]: Boogie Preprocessor took 27.05ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 75.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:19:11,105 INFO L158 Benchmark]: RCFGBuilder took 435.77ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 61.1MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:19:11,106 INFO L158 Benchmark]: CodeCheck took 425.84ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 42.0MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:19:11,106 INFO L158 Benchmark]: Witness Printer took 4.63ms. Allocated memory is still 117.4MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:19:11,108 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, 0.0s 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. 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] static int badStatic = 0; [L1581] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=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 0.26ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1369.98ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 79.5MB in the end (delta: 9.4MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.22ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 76.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.05ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 75.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 435.77ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 61.1MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 425.84ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 42.0MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.63ms. Allocated memory is still 117.4MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 21:19:11,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/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_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/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_7368e7af-afcd-45be-a497-4f3ac2423d5f/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 b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:19:13,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:19:13,974 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 21:19:14,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:19:14,025 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:19:14,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:19:14,025 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:19:14,026 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:19:14,026 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:19:14,027 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:19:14,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:19:14,027 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:19:14,027 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:19:14,027 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:19:14,029 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 21:19:14,029 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 21:19:14,029 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:19:14,029 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:19:14,029 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 21:19:14,029 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:19:14,029 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:19:14,029 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:19:14,030 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:19:14,030 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:19:14,030 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:19:14,030 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:19:14,030 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 21:19:14,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:19:14,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:19:14,031 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:19:14,031 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:19:14,031 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:19:14,031 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 21:19:14,031 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:19:14,031 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 21:19:14,031 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_7368e7af-afcd-45be-a497-4f3ac2423d5f/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 -> b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb [2024-11-13 21:19:14,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:19:14,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:19:14,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:19:14,363 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:19:14,363 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:19:14,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i Unable to find full path for "g++" [2024-11-13 21:19:16,338 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:19:16,748 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:19:16,753 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-11-13 21:19:16,795 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/data/be5e55bac/2dadd4dc5138401d86f7e710b5bccc3f/FLAG7df115098 [2024-11-13 21:19:16,823 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/data/be5e55bac/2dadd4dc5138401d86f7e710b5bccc3f [2024-11-13 21:19:16,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:19:16,828 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:19:16,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:19:16,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:19:16,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:19:16,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:19:16" (1/1) ... [2024-11-13 21:19:16,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a574dc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:16, skipping insertion in model container [2024-11-13 21:19:16,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:19:16" (1/1) ... [2024-11-13 21:19:16,903 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:19:17,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:19:18,018 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:19:18,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:19:18,296 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:19:18,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:18 WrapperNode [2024-11-13 21:19:18,298 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:19:18,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:19:18,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:19:18,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:19:18,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:18" (1/1) ... [2024-11-13 21:19:18,333 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:18" (1/1) ... [2024-11-13 21:19:18,354 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 71 [2024-11-13 21:19:18,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:19:18,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:19:18,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:19:18,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:19:18,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:18" (1/1) ... [2024-11-13 21:19:18,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:18" (1/1) ... [2024-11-13 21:19:18,366 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:18" (1/1) ... [2024-11-13 21:19:18,367 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:18" (1/1) ... [2024-11-13 21:19:18,375 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:18" (1/1) ... [2024-11-13 21:19:18,377 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:18" (1/1) ... [2024-11-13 21:19:18,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:18" (1/1) ... [2024-11-13 21:19:18,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:18" (1/1) ... [2024-11-13 21:19:18,384 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:19:18,385 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:19:18,385 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:19:18,385 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:19:18,386 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:18" (1/1) ... [2024-11-13 21:19:18,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:19:18,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:19:18,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:19:18,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:19:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:19:18,453 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:19:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 21:19:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:19:18,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:19:18,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:19:18,608 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:19:18,610 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:19:18,764 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-13 21:19:18,764 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:19:18,828 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:19:18,829 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:19:18,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:19:18 BoogieIcfgContainer [2024-11-13 21:19:18,829 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:19:18,830 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:19:18,830 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:19:18,841 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:19:18,841 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:19:18" (1/1) ... [2024-11-13 21:19:18,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:19:18,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:19:18,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-13 21:19:18,898 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 21:19:18,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 21:19:18,902 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:19:18,903 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:19:18,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:19:18,907 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:19:18,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 21:19:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:19:19,159 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:19:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:19:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:19:19,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:19:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:19:19,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-13 21:19:19,395 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:19:19,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:19:19 ImpRootNode [2024-11-13 21:19:19,439 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:19:19,440 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:19:19,440 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:19:19,441 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:19:19,442 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:19:18" (3/4) ... [2024-11-13 21:19:19,445 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:19:19,445 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:19:19,447 INFO L158 Benchmark]: Toolchain (without parser) took 2618.94ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 76.8MB in the end (delta: 14.9MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2024-11-13 21:19:19,447 INFO L158 Benchmark]: CDTParser took 3.37ms. Allocated memory is still 83.9MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:19:19,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1467.74ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 79.3MB in the end (delta: 12.3MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2024-11-13 21:19:19,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.84ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 76.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:19:19,451 INFO L158 Benchmark]: Boogie Preprocessor took 29.34ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 75.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:19:19,451 INFO L158 Benchmark]: RCFGBuilder took 444.79ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 57.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:19:19,452 INFO L158 Benchmark]: CodeCheck took 609.04ms. Allocated memory is still 117.4MB. Free memory was 57.2MB in the beginning and 76.8MB in the end (delta: -19.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:19:19,452 INFO L158 Benchmark]: Witness Printer took 5.82ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 76.8MB in the end (delta: 19.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:19:19,454 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. 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] static int badStatic = 0; [L1581] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=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 3.37ms. Allocated memory is still 83.9MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1467.74ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 79.3MB in the end (delta: 12.3MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.84ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 76.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.34ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 75.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 444.79ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 57.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 609.04ms. Allocated memory is still 117.4MB. Free memory was 57.2MB in the beginning and 76.8MB in the end (delta: -19.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.82ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 76.8MB in the end (delta: 19.3kB). 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 21:19:19,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7368e7af-afcd-45be-a497-4f3ac2423d5f/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