./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_41_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_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/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_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/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_a6b8d549-091a-4276-8748-2b4ff1a49385/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 aa0c465b59f4c587ae5977611dd4023807026f1045a3d951e4aaee9485be3c26 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:19:05,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:19:05,666 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 23:19:05,676 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:19:05,676 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 23:19:05,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:19:05,730 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:19:05,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 23:19:05,731 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:19:05,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:19:05,732 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:19:05,732 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:19:05,732 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:19:05,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:19:05,733 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:19:05,733 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:19:05,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:19:05,733 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:19:05,733 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:19:05,734 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:19:05,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:19:05,734 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:19:05,734 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 23:19:05,734 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 23:19:05,735 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 23:19:05,735 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:19:05,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:19:05,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:19:05,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:19:05,736 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:19:05,736 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 23:19:05,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:19:05,736 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_a6b8d549-091a-4276-8748-2b4ff1a49385/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 -> aa0c465b59f4c587ae5977611dd4023807026f1045a3d951e4aaee9485be3c26 [2024-11-13 23:19:06,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:19:06,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:19:06,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:19:06,167 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:19:06,168 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:19:06,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_41_bad.i Unable to find full path for "g++" [2024-11-13 23:19:08,307 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:19:08,743 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:19:08,743 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_41_bad.i [2024-11-13 23:19:08,771 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/data/771f1d95e/1976e385a3a04c95b47737ee1ff10ab6/FLAG1486dae5e [2024-11-13 23:19:08,889 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/data/771f1d95e/1976e385a3a04c95b47737ee1ff10ab6 [2024-11-13 23:19:08,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:19:08,893 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:19:08,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:19:08,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:19:08,899 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:19:08,900 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:19:08" (1/1) ... [2024-11-13 23:19:08,901 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eae271b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:08, skipping insertion in model container [2024-11-13 23:19:08,902 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:19:08" (1/1) ... [2024-11-13 23:19:08,953 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:19:09,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:19:09,840 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:19:09,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:19:10,075 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:19:10,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:10 WrapperNode [2024-11-13 23:19:10,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:19:10,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:19:10,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:19:10,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:19:10,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:10" (1/1) ... [2024-11-13 23:19:10,100 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:10" (1/1) ... [2024-11-13 23:19:10,119 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 69 [2024-11-13 23:19:10,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:19:10,120 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:19:10,120 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:19:10,120 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:19:10,127 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:10" (1/1) ... [2024-11-13 23:19:10,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:10" (1/1) ... [2024-11-13 23:19:10,129 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:10" (1/1) ... [2024-11-13 23:19:10,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:10" (1/1) ... [2024-11-13 23:19:10,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:10" (1/1) ... [2024-11-13 23:19:10,136 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:10" (1/1) ... [2024-11-13 23:19:10,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:10" (1/1) ... [2024-11-13 23:19:10,138 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:10" (1/1) ... [2024-11-13 23:19:10,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:19:10,141 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:19:10,141 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:19:10,141 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:19:10,142 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:10" (1/1) ... [2024-11-13 23:19:10,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:19:10,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 23:19:10,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 23:19:10,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 23:19:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 23:19:10,215 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 23:19:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:19:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:19:10,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:19:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:19:10,366 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:19:10,368 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:19:10,528 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-13 23:19:10,529 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:19:10,592 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:19:10,597 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 23:19:10,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:19:10 BoogieIcfgContainer [2024-11-13 23:19:10,597 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:19:10,598 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 23:19:10,598 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 23:19:10,610 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 23:19:10,611 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:19:10" (1/1) ... [2024-11-13 23:19:10,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:19:10,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:19:10,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 23:19:10,683 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 23:19:10,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:19:10,687 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:19:10,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:19:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:19:10,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:19:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:19:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:19:10,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:19:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:19:11,037 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 23:19:11,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:19:11 ImpRootNode [2024-11-13 23:19:11,071 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 23:19:11,074 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:19:11,075 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:19:11,075 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:19:11,076 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:19:10" (3/4) ... [2024-11-13 23:19:11,080 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:19:11,081 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:19:11,082 INFO L158 Benchmark]: Toolchain (without parser) took 2189.26ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 44.8MB in the end (delta: 44.2MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2024-11-13 23:19:11,083 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 83.9MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:19:11,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1180.84ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 82.3MB in the end (delta: 6.8MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-13 23:19:11,085 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.64ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 79.2MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:19:11,087 INFO L158 Benchmark]: Boogie Preprocessor took 19.95ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 78.5MB in the end (delta: 697.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:19:11,087 INFO L158 Benchmark]: RCFGBuilder took 456.90ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 63.8MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:19:11,088 INFO L158 Benchmark]: CodeCheck took 473.55ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 44.8MB in the end (delta: 19.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 23:19:11,088 INFO L158 Benchmark]: Witness Printer took 8.09ms. Allocated memory is still 117.4MB. Free memory is still 44.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:19:11,091 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: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - 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 1564, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1562. 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_41_bad() [L1558] int data; [L1559] data = 0 [L1561] 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] [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1571] CALL badSink(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 0.56ms. Allocated memory is still 83.9MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1180.84ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 82.3MB in the end (delta: 6.8MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.64ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 79.2MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.95ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 78.5MB in the end (delta: 697.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 456.90ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 63.8MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 473.55ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 44.8MB in the end (delta: 19.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 8.09ms. Allocated memory is still 117.4MB. Free memory is still 44.8MB. 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 23:19:11,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/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_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/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_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/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_a6b8d549-091a-4276-8748-2b4ff1a49385/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 aa0c465b59f4c587ae5977611dd4023807026f1045a3d951e4aaee9485be3c26 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:19:14,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:19:14,177 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 23:19:14,226 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:19:14,228 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:19:14,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 23:19:14,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:19:14,230 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:19:14,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:19:14,231 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:19:14,231 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:19:14,231 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:19:14,231 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:19:14,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:19:14,232 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:19:14,233 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:19:14,233 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:19:14,233 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:19:14,233 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:19:14,233 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:19:14,233 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:19:14,233 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:19:14,233 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 23:19:14,233 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 23:19:14,234 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 23:19:14,234 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:19:14,234 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 23:19:14,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:19:14,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:19:14,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:19:14,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:19:14,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:19:14,234 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:19:14,234 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:19:14,235 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 23:19:14,235 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_a6b8d549-091a-4276-8748-2b4ff1a49385/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 -> aa0c465b59f4c587ae5977611dd4023807026f1045a3d951e4aaee9485be3c26 [2024-11-13 23:19:14,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:19:14,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:19:14,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:19:14,658 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:19:14,661 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:19:14,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_41_bad.i Unable to find full path for "g++" [2024-11-13 23:19:16,711 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:19:17,218 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:19:17,219 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_41_bad.i [2024-11-13 23:19:17,247 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/data/b534ce488/d85e5f00bbce407db3157463991fe63b/FLAGbad426dbc [2024-11-13 23:19:17,265 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/data/b534ce488/d85e5f00bbce407db3157463991fe63b [2024-11-13 23:19:17,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:19:17,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:19:17,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:19:17,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:19:17,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:19:17,279 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:19:17" (1/1) ... [2024-11-13 23:19:17,280 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6756482a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:17, skipping insertion in model container [2024-11-13 23:19:17,280 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:19:17" (1/1) ... [2024-11-13 23:19:17,334 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:19:18,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:19:18,765 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:19:18,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:19:19,146 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:19:19,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:19 WrapperNode [2024-11-13 23:19:19,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:19:19,149 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:19:19,149 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:19:19,150 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:19:19,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:19" (1/1) ... [2024-11-13 23:19:19,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:19" (1/1) ... [2024-11-13 23:19:19,236 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-13 23:19:19,237 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:19:19,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:19:19,237 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:19:19,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:19:19,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:19" (1/1) ... [2024-11-13 23:19:19,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:19" (1/1) ... [2024-11-13 23:19:19,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:19" (1/1) ... [2024-11-13 23:19:19,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:19" (1/1) ... [2024-11-13 23:19:19,272 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:19" (1/1) ... [2024-11-13 23:19:19,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:19" (1/1) ... [2024-11-13 23:19:19,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:19" (1/1) ... [2024-11-13 23:19:19,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:19" (1/1) ... [2024-11-13 23:19:19,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:19:19,293 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:19:19,293 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:19:19,293 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:19:19,294 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:19:19" (1/1) ... [2024-11-13 23:19:19,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:19:19,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 23:19:19,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 23:19:19,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 23:19:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 23:19:19,382 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 23:19:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:19:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:19:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:19:19,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:19:19,576 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:19:19,579 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:19:19,774 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-13 23:19:19,774 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:19:19,858 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:19:19,860 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 23:19:19,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:19:19 BoogieIcfgContainer [2024-11-13 23:19:19,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:19:19,862 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 23:19:19,864 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 23:19:19,914 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 23:19:19,914 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:19:19" (1/1) ... [2024-11-13 23:19:19,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:19:19,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:19:19,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 23:19:19,987 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 23:19:19,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:19:19,994 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:19:19,995 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:19:19,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:19:20,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:19:20,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 23:19:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:19:20,227 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:19:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:19:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:19:20,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:19:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:19:20,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 23:19:20,491 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 23:19:20,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:19:20 ImpRootNode [2024-11-13 23:19:20,522 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 23:19:20,522 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:19:20,523 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:19:20,523 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:19:20,524 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:19:19" (3/4) ... [2024-11-13 23:19:20,526 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:19:20,527 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:19:20,528 INFO L158 Benchmark]: Toolchain (without parser) took 3258.56ms. Allocated memory is still 109.1MB. Free memory was 82.0MB in the beginning and 59.8MB in the end (delta: 22.2MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2024-11-13 23:19:20,529 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 83.9MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:19:20,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1876.40ms. Allocated memory is still 109.1MB. Free memory was 81.8MB in the beginning and 59.6MB in the end (delta: 22.2MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2024-11-13 23:19:20,530 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.30ms. Allocated memory is still 109.1MB. Free memory was 59.6MB in the beginning and 57.2MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:19:20,530 INFO L158 Benchmark]: Boogie Preprocessor took 54.58ms. Allocated memory is still 109.1MB. Free memory was 57.2MB in the beginning and 55.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:19:20,530 INFO L158 Benchmark]: RCFGBuilder took 568.65ms. Allocated memory is still 109.1MB. Free memory was 55.5MB in the beginning and 38.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:19:20,531 INFO L158 Benchmark]: CodeCheck took 659.62ms. Allocated memory is still 109.1MB. Free memory was 38.7MB in the beginning and 59.8MB in the end (delta: -21.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:19:20,531 INFO L158 Benchmark]: Witness Printer took 4.98ms. Allocated memory is still 109.1MB. Free memory is still 59.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:19:20,534 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: 0.6s, 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 1564, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1562. 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_41_bad() [L1558] int data; [L1559] data = 0 [L1561] 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] [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1571] CALL badSink(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 0.56ms. Allocated memory is still 83.9MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1876.40ms. Allocated memory is still 109.1MB. Free memory was 81.8MB in the beginning and 59.6MB in the end (delta: 22.2MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.30ms. Allocated memory is still 109.1MB. Free memory was 59.6MB in the beginning and 57.2MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.58ms. Allocated memory is still 109.1MB. Free memory was 57.2MB in the beginning and 55.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 568.65ms. Allocated memory is still 109.1MB. Free memory was 55.5MB in the beginning and 38.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 659.62ms. Allocated memory is still 109.1MB. Free memory was 38.7MB in the beginning and 59.8MB in the end (delta: -21.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.98ms. Allocated memory is still 109.1MB. Free memory is still 59.8MB. 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 23:19:20,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b8d549-091a-4276-8748-2b4ff1a49385/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample