./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_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_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/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_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/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_5979292b-295e-4240-a3c5-d3504f777e3e/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 b9fbf860090144fde4aeabd07a1f215f122b8dafbd1dea66fb6a578d61759014 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:05:11,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:05:11,571 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 21:05:11,577 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:05:11,578 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:05:11,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:05:11,618 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:05:11,618 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:05:11,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:05:11,618 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:05:11,619 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:05:11,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:05:11,619 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:05:11,619 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:05:11,619 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:05:11,619 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:05:11,619 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:05:11,619 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:05:11,619 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:05:11,620 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:05:11,620 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:05:11,620 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:05:11,620 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:05:11,620 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:05:11,620 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:05:11,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:05:11,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:05:11,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:05:11,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:05:11,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:05:11,621 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:05:11,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:05:11,621 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_5979292b-295e-4240-a3c5-d3504f777e3e/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 -> b9fbf860090144fde4aeabd07a1f215f122b8dafbd1dea66fb6a578d61759014 [2024-11-13 21:05:12,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:05:12,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:05:12,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:05:12,028 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:05:12,028 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:05:12,030 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i Unable to find full path for "g++" [2024-11-13 21:05:14,039 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:05:14,515 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:05:14,515 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i [2024-11-13 21:05:14,540 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/data/f0fd84f23/bbf5795022554498bd795c2815262fd6/FLAGf6ef08f68 [2024-11-13 21:05:14,556 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/data/f0fd84f23/bbf5795022554498bd795c2815262fd6 [2024-11-13 21:05:14,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:05:14,560 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:05:14,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:05:14,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:05:14,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:05:14,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:05:14" (1/1) ... [2024-11-13 21:05:14,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@129956ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:14, skipping insertion in model container [2024-11-13 21:05:14,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:05:14" (1/1) ... [2024-11-13 21:05:14,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:05:15,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:05:15,620 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:05:15,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:05:15,964 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:05:15,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:15 WrapperNode [2024-11-13 21:05:15,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:05:15,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:05:15,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:05:15,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:05:15,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:15" (1/1) ... [2024-11-13 21:05:16,004 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:15" (1/1) ... [2024-11-13 21:05:16,038 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 73 [2024-11-13 21:05:16,039 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:05:16,040 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:05:16,040 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:05:16,040 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:05:16,048 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:15" (1/1) ... [2024-11-13 21:05:16,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:15" (1/1) ... [2024-11-13 21:05:16,053 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:15" (1/1) ... [2024-11-13 21:05:16,058 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:15" (1/1) ... [2024-11-13 21:05:16,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:15" (1/1) ... [2024-11-13 21:05:16,073 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:15" (1/1) ... [2024-11-13 21:05:16,075 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:15" (1/1) ... [2024-11-13 21:05:16,079 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:15" (1/1) ... [2024-11-13 21:05:16,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:05:16,083 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:05:16,083 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:05:16,083 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:05:16,084 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:15" (1/1) ... [2024-11-13 21:05:16,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:05:16,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:05:16,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:05:16,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:05:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:05:16,147 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:05:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:05:16,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:05:16,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:05:16,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:05:16,287 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:05:16,289 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:05:16,447 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-13 21:05:16,447 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:05:16,502 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:05:16,503 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:05:16,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:16 BoogieIcfgContainer [2024-11-13 21:05:16,503 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:05:16,504 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:05:16,504 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:05:16,515 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:05:16,515 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:16" (1/1) ... [2024-11-13 21:05:16,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:05:16,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:05:16,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 21:05:16,589 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 21:05:16,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:05:16,595 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:05:16,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:05:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:16,721 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:05:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:16,830 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:05:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:16,881 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:05:16,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:05:16 ImpRootNode [2024-11-13 21:05:16,921 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:05:16,922 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:05:16,922 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:05:16,923 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:05:16,925 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:16" (3/4) ... [2024-11-13 21:05:16,928 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:05:16,929 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:05:16,932 INFO L158 Benchmark]: Toolchain (without parser) took 2369.77ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 41.5MB in the end (delta: 47.8MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2024-11-13 21:05:16,932 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:16,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1403.86ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 80.0MB in the end (delta: 9.1MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-11-13 21:05:16,933 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.01ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 77.2MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:16,934 INFO L158 Benchmark]: Boogie Preprocessor took 42.33ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 76.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:16,934 INFO L158 Benchmark]: RCFGBuilder took 420.41ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 61.1MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:05:16,938 INFO L158 Benchmark]: CodeCheck took 417.54ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 41.5MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:05:16,938 INFO L158 Benchmark]: Witness Printer took 6.69ms. Allocated memory is still 117.4MB. Free memory is still 41.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:16,940 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565, overapproximation of large string literal at line 1577, overapproximation of fgets at line 1563. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_postdec_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1572] CALL funcPtr(data) [L1551] data-- 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 0.43ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1403.86ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 80.0MB in the end (delta: 9.1MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.01ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 77.2MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.33ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 76.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 420.41ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 61.1MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 417.54ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 41.5MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 6.69ms. Allocated memory is still 117.4MB. Free memory is still 41.5MB. 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 21:05:16,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/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_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/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_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/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_5979292b-295e-4240-a3c5-d3504f777e3e/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 b9fbf860090144fde4aeabd07a1f215f122b8dafbd1dea66fb6a578d61759014 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:05:20,150 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:05:20,286 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 21:05:20,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:05:20,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:05:20,345 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:05:20,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:05:20,346 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:05:20,346 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:05:20,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:05:20,349 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:05:20,349 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:05:20,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:05:20,350 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:05:20,350 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 21:05:20,350 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 21:05:20,350 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:05:20,350 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:05:20,350 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 21:05:20,351 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:05:20,351 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:05:20,351 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:05:20,351 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:05:20,351 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:05:20,351 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:05:20,351 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:05:20,351 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 21:05:20,352 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:05:20,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:05:20,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:05:20,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:05:20,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:05:20,352 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 21:05:20,352 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:05:20,353 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 21:05:20,353 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_5979292b-295e-4240-a3c5-d3504f777e3e/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 -> b9fbf860090144fde4aeabd07a1f215f122b8dafbd1dea66fb6a578d61759014 [2024-11-13 21:05:20,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:05:20,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:05:20,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:05:20,777 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:05:20,778 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:05:20,779 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i Unable to find full path for "g++" [2024-11-13 21:05:22,831 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:05:23,376 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:05:23,377 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i [2024-11-13 21:05:23,414 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/data/7b028e6f7/406ef88a2c8042cb859a55a2d58a8aed/FLAG0d6d0ce31 [2024-11-13 21:05:23,896 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/data/7b028e6f7/406ef88a2c8042cb859a55a2d58a8aed [2024-11-13 21:05:23,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:05:23,900 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:05:23,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:05:23,902 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:05:23,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:05:23,909 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:05:23" (1/1) ... [2024-11-13 21:05:23,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@492f29c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:23, skipping insertion in model container [2024-11-13 21:05:23,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:05:23" (1/1) ... [2024-11-13 21:05:23,974 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:05:25,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:05:25,137 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:05:25,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:05:25,497 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:05:25,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:25 WrapperNode [2024-11-13 21:05:25,497 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:05:25,499 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:05:25,499 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:05:25,499 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:05:25,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:25" (1/1) ... [2024-11-13 21:05:25,541 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:25" (1/1) ... [2024-11-13 21:05:25,572 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 72 [2024-11-13 21:05:25,572 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:05:25,573 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:05:25,573 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:05:25,573 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:05:25,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:25" (1/1) ... [2024-11-13 21:05:25,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:25" (1/1) ... [2024-11-13 21:05:25,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:25" (1/1) ... [2024-11-13 21:05:25,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:25" (1/1) ... [2024-11-13 21:05:25,606 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:25" (1/1) ... [2024-11-13 21:05:25,616 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:25" (1/1) ... [2024-11-13 21:05:25,622 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:25" (1/1) ... [2024-11-13 21:05:25,624 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:25" (1/1) ... [2024-11-13 21:05:25,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:05:25,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:05:25,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:05:25,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:05:25,634 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:25" (1/1) ... [2024-11-13 21:05:25,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:05:25,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:05:25,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:05:25,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:05:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:05:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:05:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 21:05:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:05:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:05:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:05:25,889 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:05:25,892 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:05:26,085 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-13 21:05:26,085 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:05:26,144 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:05:26,144 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:05:26,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:26 BoogieIcfgContainer [2024-11-13 21:05:26,144 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:05:26,145 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:05:26,145 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:05:26,158 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:05:26,159 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:26" (1/1) ... [2024-11-13 21:05:26,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:05:26,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:05:26,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 21:05:26,236 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 21:05:26,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:05:26,243 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:05:26,244 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:05:26,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:05:26,249 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:05:26,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 21:05:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:26,562 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:05:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:26,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:05:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:26,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 21:05:26,828 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:05:26,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:05:26 ImpRootNode [2024-11-13 21:05:26,868 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:05:26,870 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:05:26,870 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:05:26,871 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:05:26,873 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:26" (3/4) ... [2024-11-13 21:05:26,875 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:05:26,876 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:05:26,877 INFO L158 Benchmark]: Toolchain (without parser) took 2977.64ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 74.9MB in the end (delta: 14.2MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2024-11-13 21:05:26,878 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:26,878 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1596.53ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 78.1MB in the end (delta: 11.0MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-13 21:05:26,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.82ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 75.7MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:26,881 INFO L158 Benchmark]: Boogie Preprocessor took 58.29ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 74.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:26,882 INFO L158 Benchmark]: RCFGBuilder took 512.34ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 56.6MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:05:26,882 INFO L158 Benchmark]: CodeCheck took 723.00ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 75.6MB in the end (delta: -18.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:26,883 INFO L158 Benchmark]: Witness Printer took 6.18ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 74.9MB in the end (delta: 665.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:26,887 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: 0.7s, 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565, overapproximation of large string literal at line 1577, overapproximation of fgets at line 1563. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_postdec_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1572] CALL funcPtr(data) [L1551] data-- 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 0.36ms. Allocated memory is still 83.9MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1596.53ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 78.1MB in the end (delta: 11.0MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.82ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 75.7MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.29ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 74.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 512.34ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 56.6MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 723.00ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 75.6MB in the end (delta: -18.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.18ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 74.9MB in the end (delta: 665.8kB). 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 21:05:26,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5979292b-295e-4240-a3c5-d3504f777e3e/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