./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_52_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b --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 1188894761a44d828a8f04cd8512147082a237ca025bd57b106bf7d35bee4bbf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:40:37,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:40:37,758 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-05 23:40:37,763 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:40:37,763 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:40:37,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:40:37,784 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:40:37,784 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:40:37,785 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:40:37,785 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:40:37,785 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:40:37,785 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:40:37,785 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:40:37,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:40:37,785 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:40:37,785 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:40:37,786 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:40:37,786 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 23:40:37,786 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 23:40:37,786 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:40:37,786 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:40:37,786 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:40:37,786 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:40:37,786 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:40:37,786 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:40:37,786 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:40:37,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:40:37,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:40:37,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:40:37,787 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:40:37,787 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:40:37,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:40:37,787 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_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b 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 -> 1188894761a44d828a8f04cd8512147082a237ca025bd57b106bf7d35bee4bbf [2024-12-05 23:40:38,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:40:38,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:40:38,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:40:38,034 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:40:38,034 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:40:38,036 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_52_bad.i [2024-12-05 23:40:40,638 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/data/1ecacd6b7/5666ae463a02458caf49a24bb54eb480/FLAG6b0cb53a3 [2024-12-05 23:40:40,998 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:40:40,998 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_52_bad.i [2024-12-05 23:40:41,019 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/data/1ecacd6b7/5666ae463a02458caf49a24bb54eb480/FLAG6b0cb53a3 [2024-12-05 23:40:41,037 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/data/1ecacd6b7/5666ae463a02458caf49a24bb54eb480 [2024-12-05 23:40:41,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:40:41,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:40:41,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:40:41,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:40:41,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:40:41,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:40:41" (1/1) ... [2024-12-05 23:40:41,050 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e8e4867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:41, skipping insertion in model container [2024-12-05 23:40:41,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:40:41" (1/1) ... [2024-12-05 23:40:41,103 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:40:41,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:40:41,834 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:40:41,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:40:42,033 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:40:42,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:42 WrapperNode [2024-12-05 23:40:42,034 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:40:42,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:40:42,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:40:42,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:40:42,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:42" (1/1) ... [2024-12-05 23:40:42,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:42" (1/1) ... [2024-12-05 23:40:42,085 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 63 [2024-12-05 23:40:42,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:40:42,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:40:42,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:40:42,086 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:40:42,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:42" (1/1) ... [2024-12-05 23:40:42,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:42" (1/1) ... [2024-12-05 23:40:42,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:42" (1/1) ... [2024-12-05 23:40:42,094 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:42" (1/1) ... [2024-12-05 23:40:42,099 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:42" (1/1) ... [2024-12-05 23:40:42,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:42" (1/1) ... [2024-12-05 23:40:42,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:42" (1/1) ... [2024-12-05 23:40:42,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:42" (1/1) ... [2024-12-05 23:40:42,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:42" (1/1) ... [2024-12-05 23:40:42,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:40:42,107 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:40:42,107 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:40:42,107 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:40:42,108 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:42" (1/1) ... [2024-12-05 23:40:42,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:40:42,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:40:42,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:40:42,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:40:42,154 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 23:40:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 23:40:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:40:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:40:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:40:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:40:42,269 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:40:42,270 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:40:42,391 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-12-05 23:40:42,391 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:40:42,428 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:40:42,428 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 23:40:42,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:40:42 BoogieIcfgContainer [2024-12-05 23:40:42,429 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:40:42,429 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:40:42,430 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:40:42,439 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:40:42,439 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:40:42" (1/1) ... [2024-12-05 23:40:42,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:40:42,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:40:42,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-12-05 23:40:42,507 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-12-05 23:40:42,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 23:40:42,512 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:40:42,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:40:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:40:42,651 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:40:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:40:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:40:42,741 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:40:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:40:42,772 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 23:40:42,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:40:42 ImpRootNode [2024-12-05 23:40:42,795 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:40:42,796 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:40:42,796 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:40:42,796 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:40:42,797 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:40:42" (3/4) ... [2024-12-05 23:40:42,799 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 23:40:42,799 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:40:42,800 INFO L158 Benchmark]: Toolchain (without parser) took 1759.35ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 78.6MB in the end (delta: 35.1MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2024-12-05 23:40:42,801 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:40:42,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 991.35ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 54.4MB in the end (delta: 59.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-05 23:40:42,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.88ms. Allocated memory is still 142.6MB. Free memory was 54.1MB in the beginning and 113.2MB in the end (delta: -59.1MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2024-12-05 23:40:42,802 INFO L158 Benchmark]: Boogie Preprocessor took 20.17ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 112.6MB in the end (delta: 665.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:40:42,803 INFO L158 Benchmark]: RCFGBuilder took 322.20ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 98.1MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:40:42,803 INFO L158 Benchmark]: CodeCheck took 365.56ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 79.3MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:40:42,804 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 142.6MB. Free memory was 79.3MB in the beginning and 78.6MB in the end (delta: 665.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:40:42,807 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, 17 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, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_52c_badSink(data) [L1581] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] data * 2 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 0.25ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 991.35ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 54.4MB in the end (delta: 59.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.88ms. Allocated memory is still 142.6MB. Free memory was 54.1MB in the beginning and 113.2MB in the end (delta: -59.1MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.17ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 112.6MB in the end (delta: 665.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 322.20ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 98.1MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 365.56ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 79.3MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 142.6MB. Free memory was 79.3MB in the beginning and 78.6MB in the end (delta: 665.9kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 23:40:42,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/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_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b --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 1188894761a44d828a8f04cd8512147082a237ca025bd57b106bf7d35bee4bbf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:40:44,837 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:40:44,928 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-05 23:40:44,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:40:44,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:40:44,955 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:40:44,955 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:40:44,955 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:40:44,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:40:44,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:40:44,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:40:44,956 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:40:44,956 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:40:44,956 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:40:44,956 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 23:40:44,956 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 23:40:44,957 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 23:40:44,957 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 23:40:44,957 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 23:40:44,957 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:40:44,957 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:40:44,957 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:40:44,957 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:40:44,957 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:40:44,957 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:40:44,957 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:40:44,958 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 23:40:44,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:40:44,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:40:44,958 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:40:44,958 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:40:44,958 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:40:44,958 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 23:40:44,958 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:40:44,958 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 23:40:44,958 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_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b 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 -> 1188894761a44d828a8f04cd8512147082a237ca025bd57b106bf7d35bee4bbf [2024-12-05 23:40:45,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:40:45,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:40:45,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:40:45,199 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:40:45,199 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:40:45,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_52_bad.i [2024-12-05 23:40:47,934 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/data/8bf0e07fe/eea78bdca26147de97c3a77a4e0493dd/FLAG0fe3e2171 [2024-12-05 23:40:48,252 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:40:48,252 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_52_bad.i [2024-12-05 23:40:48,276 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/data/8bf0e07fe/eea78bdca26147de97c3a77a4e0493dd/FLAG0fe3e2171 [2024-12-05 23:40:48,294 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/data/8bf0e07fe/eea78bdca26147de97c3a77a4e0493dd [2024-12-05 23:40:48,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:40:48,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:40:48,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:40:48,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:40:48,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:40:48,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:40:48" (1/1) ... [2024-12-05 23:40:48,306 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ae2702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:48, skipping insertion in model container [2024-12-05 23:40:48,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:40:48" (1/1) ... [2024-12-05 23:40:48,358 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:40:49,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:40:49,134 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:40:49,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:40:49,346 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:40:49,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:49 WrapperNode [2024-12-05 23:40:49,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:40:49,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:40:49,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:40:49,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:40:49,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:49" (1/1) ... [2024-12-05 23:40:49,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:49" (1/1) ... [2024-12-05 23:40:49,391 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 62 [2024-12-05 23:40:49,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:40:49,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:40:49,393 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:40:49,393 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:40:49,400 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:49" (1/1) ... [2024-12-05 23:40:49,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:49" (1/1) ... [2024-12-05 23:40:49,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:49" (1/1) ... [2024-12-05 23:40:49,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:49" (1/1) ... [2024-12-05 23:40:49,411 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:49" (1/1) ... [2024-12-05 23:40:49,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:49" (1/1) ... [2024-12-05 23:40:49,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:49" (1/1) ... [2024-12-05 23:40:49,416 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:49" (1/1) ... [2024-12-05 23:40:49,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:49" (1/1) ... [2024-12-05 23:40:49,421 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:40:49,422 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:40:49,422 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:40:49,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:40:49,423 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:40:49" (1/1) ... [2024-12-05 23:40:49,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:40:49,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:40:49,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:40:49,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:40:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 23:40:49,480 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 23:40:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 23:40:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:40:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:40:49,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:40:49,594 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:40:49,596 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:40:49,719 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-12-05 23:40:49,719 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:40:49,756 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:40:49,756 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 23:40:49,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:40:49 BoogieIcfgContainer [2024-12-05 23:40:49,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:40:49,757 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:40:49,757 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:40:49,765 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:40:49,765 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:40:49" (1/1) ... [2024-12-05 23:40:49,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:40:49,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:40:49,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-12-05 23:40:49,810 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-12-05 23:40:49,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 23:40:49,813 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:40:49,814 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:40:49,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:40:49,816 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:40:49,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 23:40:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:40:49,985 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:40:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:40:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:40:50,091 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:40:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:40:50,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 23:40:50,121 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 23:40:50,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:40:50 ImpRootNode [2024-12-05 23:40:50,146 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:40:50,147 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:40:50,147 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:40:50,147 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:40:50,148 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:40:49" (3/4) ... [2024-12-05 23:40:50,150 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 23:40:50,151 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:40:50,152 INFO L158 Benchmark]: Toolchain (without parser) took 1853.71ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 65.8MB in the beginning and 103.9MB in the end (delta: -38.1MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-12-05 23:40:50,152 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:40:50,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1047.70ms. Allocated memory is still 92.3MB. Free memory was 65.7MB in the beginning and 62.1MB in the end (delta: 3.5MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-12-05 23:40:50,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.00ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 59.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:40:50,153 INFO L158 Benchmark]: Boogie Preprocessor took 28.50ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 58.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:40:50,154 INFO L158 Benchmark]: RCFGBuilder took 334.67ms. Allocated memory is still 92.3MB. Free memory was 58.1MB in the beginning and 41.7MB in the end (delta: 16.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:40:50,154 INFO L158 Benchmark]: CodeCheck took 389.14ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 41.7MB in the beginning and 104.5MB in the end (delta: -62.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:40:50,155 INFO L158 Benchmark]: Witness Printer took 4.03ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 103.9MB in the end (delta: 538.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:40:50,158 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, 17 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, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_52c_badSink(data) [L1581] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] data * 2 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 0.29ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1047.70ms. Allocated memory is still 92.3MB. Free memory was 65.7MB in the beginning and 62.1MB in the end (delta: 3.5MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.00ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 59.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.50ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 58.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 334.67ms. Allocated memory is still 92.3MB. Free memory was 58.1MB in the beginning and 41.7MB in the end (delta: 16.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 389.14ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 41.7MB in the beginning and 104.5MB in the end (delta: -62.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.03ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 103.9MB in the end (delta: 538.2kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 23:40:50,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e66097-fa53-463b-b2bc-ab30ebaa67f4/bin/ukojak-verify-CZk0znPC7b/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