./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_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_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/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_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/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_e014d3d7-bf71-4963-895a-b70415449587/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 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:32:56,525 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:32:56,619 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 21:32:56,625 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:32:56,626 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:32:56,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:32:56,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:32:56,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:32:56,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:32:56,659 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:32:56,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:32:56,660 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:32:56,660 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:32:56,660 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:32:56,660 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:32:56,660 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:32:56,661 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:32:56,661 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:32:56,661 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:32:56,661 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:32:56,661 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:32:56,662 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:32:56,662 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:32:56,662 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:32:56,662 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:32:56,662 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:32:56,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:32:56,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:32:56,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:32:56,663 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:32:56,663 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:32:56,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:32:56,663 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_e014d3d7-bf71-4963-895a-b70415449587/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 -> 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a [2024-11-13 21:32:57,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:32:57,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:32:57,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:32:57,059 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:32:57,059 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:32:57,061 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i Unable to find full path for "g++" [2024-11-13 21:32:59,610 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:33:00,161 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:33:00,165 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i [2024-11-13 21:33:00,210 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/data/da8fe8c09/9c7368ecb24040bd986c20bda53a8314/FLAG85d9755e6 [2024-11-13 21:33:00,238 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/data/da8fe8c09/9c7368ecb24040bd986c20bda53a8314 [2024-11-13 21:33:00,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:33:00,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:33:00,245 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:33:00,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:33:00,251 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:33:00,252 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:33:00" (1/1) ... [2024-11-13 21:33:00,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3587c4ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:00, skipping insertion in model container [2024-11-13 21:33:00,253 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:33:00" (1/1) ... [2024-11-13 21:33:00,311 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:33:01,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:33:01,472 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:33:01,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:33:01,836 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:33:01,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:01 WrapperNode [2024-11-13 21:33:01,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:33:01,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:33:01,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:33:01,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:33:01,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:01" (1/1) ... [2024-11-13 21:33:01,868 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:01" (1/1) ... [2024-11-13 21:33:01,894 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 68 [2024-11-13 21:33:01,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:33:01,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:33:01,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:33:01,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:33:01,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:01" (1/1) ... [2024-11-13 21:33:01,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:01" (1/1) ... [2024-11-13 21:33:01,908 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:01" (1/1) ... [2024-11-13 21:33:01,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:01" (1/1) ... [2024-11-13 21:33:01,914 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:01" (1/1) ... [2024-11-13 21:33:01,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:01" (1/1) ... [2024-11-13 21:33:01,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:01" (1/1) ... [2024-11-13 21:33:01,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:01" (1/1) ... [2024-11-13 21:33:01,922 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:33:01,923 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:33:01,923 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:33:01,924 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:33:01,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:01" (1/1) ... [2024-11-13 21:33:01,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:33:01,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:33:01,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:33:01,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:33:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:33:02,005 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:33:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:33:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:33:02,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:33:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:33:02,182 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:33:02,184 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:33:02,315 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-13 21:33:02,315 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:33:02,361 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:33:02,362 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:33:02,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:33:02 BoogieIcfgContainer [2024-11-13 21:33:02,362 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:33:02,363 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:33:02,363 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:33:02,373 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:33:02,373 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:33:02" (1/1) ... [2024-11-13 21:33:02,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:33:02,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:33:02,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 21:33:02,430 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 21:33:02,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:33:02,434 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:33:02,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:33:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:33:02,556 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:33:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:33:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:33:02,677 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:33:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:33:02,712 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:33:02,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:33:02 ImpRootNode [2024-11-13 21:33:02,740 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:33:02,741 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:33:02,741 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:33:02,741 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:33:02,741 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:33:02" (3/4) ... [2024-11-13 21:33:02,744 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:33:02,744 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:33:02,745 INFO L158 Benchmark]: Toolchain (without parser) took 2503.02ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 43.4MB in the end (delta: 45.2MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-11-13 21:33:02,746 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 41.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:33:02,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1593.39ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 80.8MB in the end (delta: 7.8MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-13 21:33:02,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.87ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 77.7MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:33:02,747 INFO L158 Benchmark]: Boogie Preprocessor took 27.33ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 77.0MB in the end (delta: 699.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:33:02,747 INFO L158 Benchmark]: RCFGBuilder took 439.17ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 62.4MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:33:02,748 INFO L158 Benchmark]: CodeCheck took 377.00ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 43.4MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:33:02,748 INFO L158 Benchmark]: Witness Printer took 4.03ms. Allocated memory is still 117.4MB. Free memory is still 43.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:33:02,751 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 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 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_52c_badSink(data) [L1582] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 41.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1593.39ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 80.8MB in the end (delta: 7.8MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.87ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 77.7MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.33ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 77.0MB in the end (delta: 699.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 439.17ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 62.4MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 377.00ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 43.4MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.03ms. Allocated memory is still 117.4MB. Free memory is still 43.4MB. 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 21:33:02,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/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_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/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_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/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_e014d3d7-bf71-4963-895a-b70415449587/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 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:33:05,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:33:05,615 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 21:33:05,660 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:33:05,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:33:05,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:33:05,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:33:05,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:33:05,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:33:05,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:33:05,665 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:33:05,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:33:05,665 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:33:05,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:33:05,666 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 21:33:05,667 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 21:33:05,668 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:33:05,668 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:33:05,668 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 21:33:05,668 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:33:05,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:33:05,668 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:33:05,669 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:33:05,669 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:33:05,669 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:33:05,669 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:33:05,669 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 21:33:05,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:33:05,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:33:05,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:33:05,670 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:33:05,670 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:33:05,670 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 21:33:05,670 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:33:05,670 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 21:33:05,670 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_e014d3d7-bf71-4963-895a-b70415449587/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 -> 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a [2024-11-13 21:33:06,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:33:06,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:33:06,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:33:06,050 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:33:06,051 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:33:06,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i Unable to find full path for "g++" [2024-11-13 21:33:07,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:33:08,409 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:33:08,410 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i [2024-11-13 21:33:08,445 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/data/27dce6e8a/fd597c54519143998dfe742e061e6faa/FLAG18c79ca37 [2024-11-13 21:33:08,466 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/data/27dce6e8a/fd597c54519143998dfe742e061e6faa [2024-11-13 21:33:08,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:33:08,470 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:33:08,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:33:08,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:33:08,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:33:08,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:33:08" (1/1) ... [2024-11-13 21:33:08,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6204e408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:08, skipping insertion in model container [2024-11-13 21:33:08,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:33:08" (1/1) ... [2024-11-13 21:33:08,545 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:33:09,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:33:09,734 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:33:09,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:33:09,990 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:33:09,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:09 WrapperNode [2024-11-13 21:33:09,990 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:33:09,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:33:09,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:33:09,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:33:09,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:09" (1/1) ... [2024-11-13 21:33:10,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:09" (1/1) ... [2024-11-13 21:33:10,039 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 67 [2024-11-13 21:33:10,040 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:33:10,040 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:33:10,040 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:33:10,040 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:33:10,047 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:09" (1/1) ... [2024-11-13 21:33:10,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:09" (1/1) ... [2024-11-13 21:33:10,050 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:09" (1/1) ... [2024-11-13 21:33:10,051 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:09" (1/1) ... [2024-11-13 21:33:10,058 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:09" (1/1) ... [2024-11-13 21:33:10,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:09" (1/1) ... [2024-11-13 21:33:10,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:09" (1/1) ... [2024-11-13 21:33:10,063 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:09" (1/1) ... [2024-11-13 21:33:10,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:33:10,067 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:33:10,067 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:33:10,067 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:33:10,068 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:33:09" (1/1) ... [2024-11-13 21:33:10,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:33:10,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:33:10,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:33:10,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:33:10,129 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:33:10,129 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:33:10,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 21:33:10,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:33:10,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:33:10,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:33:10,319 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:33:10,322 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:33:10,506 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-13 21:33:10,507 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:33:10,581 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:33:10,581 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:33:10,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:33:10 BoogieIcfgContainer [2024-11-13 21:33:10,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:33:10,582 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:33:10,583 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:33:10,592 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:33:10,592 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:33:10" (1/1) ... [2024-11-13 21:33:10,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:33:10,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:33:10,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 21:33:10,663 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 21:33:10,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:33:10,667 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:33:10,668 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:33:10,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:33:10,671 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:33:10,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 21:33:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:33:10,866 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:33:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:33:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:33:11,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:33:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:33:11,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 21:33:11,150 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:33:11,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:33:11 ImpRootNode [2024-11-13 21:33:11,197 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:33:11,199 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:33:11,199 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:33:11,200 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:33:11,201 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:33:10" (3/4) ... [2024-11-13 21:33:11,204 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:33:11,206 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:33:11,207 INFO L158 Benchmark]: Toolchain (without parser) took 2736.40ms. Allocated memory is still 83.9MB. Free memory was 56.6MB in the beginning and 35.5MB in the end (delta: 21.1MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2024-11-13 21:33:11,210 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:33:11,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1518.12ms. Allocated memory is still 83.9MB. Free memory was 56.6MB in the beginning and 52.3MB in the end (delta: 4.3MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2024-11-13 21:33:11,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.70ms. Allocated memory is still 83.9MB. Free memory was 52.3MB in the beginning and 49.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:33:11,212 INFO L158 Benchmark]: Boogie Preprocessor took 26.33ms. Allocated memory is still 83.9MB. Free memory was 49.6MB in the beginning and 48.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:33:11,212 INFO L158 Benchmark]: RCFGBuilder took 514.60ms. Allocated memory is still 83.9MB. Free memory was 48.1MB in the beginning and 30.7MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:33:11,213 INFO L158 Benchmark]: CodeCheck took 614.66ms. Allocated memory is still 83.9MB. Free memory was 30.7MB in the beginning and 35.9MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:33:11,214 INFO L158 Benchmark]: Witness Printer took 7.00ms. Allocated memory is still 83.9MB. Free memory was 35.9MB in the beginning and 35.5MB in the end (delta: 424.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:33:11,216 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 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 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_52c_badSink(data) [L1582] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1518.12ms. Allocated memory is still 83.9MB. Free memory was 56.6MB in the beginning and 52.3MB in the end (delta: 4.3MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.70ms. Allocated memory is still 83.9MB. Free memory was 52.3MB in the beginning and 49.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.33ms. Allocated memory is still 83.9MB. Free memory was 49.6MB in the beginning and 48.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 514.60ms. Allocated memory is still 83.9MB. Free memory was 48.1MB in the beginning and 30.7MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 614.66ms. Allocated memory is still 83.9MB. Free memory was 30.7MB in the beginning and 35.9MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.00ms. Allocated memory is still 83.9MB. Free memory was 35.9MB in the beginning and 35.5MB in the end (delta: 424.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 21:33:11,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e014d3d7-bf71-4963-895a-b70415449587/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