./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/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_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/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_ea094eb9-90ea-48e6-8028-18aa30b9acaf/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 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:33:49,612 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:33:49,670 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 01:33:49,675 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:33:49,675 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:33:49,695 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:33:49,696 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:33:49,696 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:33:49,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:33:49,697 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:33:49,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:33:49,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:33:49,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:33:49,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:33:49,697 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:33:49,697 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:33:49,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:33:49,698 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:33:49,698 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:33:49,698 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:33:49,698 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:33:49,698 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:33:49,698 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:33:49,698 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:33:49,698 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:33:49,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:33:49,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:33:49,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:33:49,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:33:49,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:33:49,699 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:33:49,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:33:49,699 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_ea094eb9-90ea-48e6-8028-18aa30b9acaf/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 -> 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a [2024-12-06 01:33:49,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:33:49,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:33:49,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:33:49,943 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:33:49,944 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:33:49,945 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i [2024-12-06 01:33:52,566 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/data/211b203e0/92e64bbd715c4c2e93ced9149f3e3144/FLAG23819d996 [2024-12-06 01:33:52,865 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:33:52,865 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i [2024-12-06 01:33:52,883 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/data/211b203e0/92e64bbd715c4c2e93ced9149f3e3144/FLAG23819d996 [2024-12-06 01:33:53,150 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/data/211b203e0/92e64bbd715c4c2e93ced9149f3e3144 [2024-12-06 01:33:53,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:33:53,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:33:53,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:33:53,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:33:53,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:33:53,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:33:53" (1/1) ... [2024-12-06 01:33:53,163 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57dd9d5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:33:53, skipping insertion in model container [2024-12-06 01:33:53,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:33:53" (1/1) ... [2024-12-06 01:33:53,203 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:33:53,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:33:53,774 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:33:53,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:33:53,946 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:33:53,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:33:53 WrapperNode [2024-12-06 01:33:53,946 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:33:53,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:33:53,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:33:53,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:33:53,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:33:53" (1/1) ... [2024-12-06 01:33:53,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:33:53" (1/1) ... [2024-12-06 01:33:53,988 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 62 [2024-12-06 01:33:53,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:33:53,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:33:53,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:33:53,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:33:53,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:33:53" (1/1) ... [2024-12-06 01:33:53,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:33:53" (1/1) ... [2024-12-06 01:33:53,996 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:33:53" (1/1) ... [2024-12-06 01:33:53,997 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:33:53" (1/1) ... [2024-12-06 01:33:54,000 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:33:53" (1/1) ... [2024-12-06 01:33:54,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:33:53" (1/1) ... [2024-12-06 01:33:54,002 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:33:53" (1/1) ... [2024-12-06 01:33:54,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:33:53" (1/1) ... [2024-12-06 01:33:54,004 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:33:53" (1/1) ... [2024-12-06 01:33:54,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:33:54,007 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:33:54,007 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:33:54,007 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:33:54,008 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:33:53" (1/1) ... [2024-12-06 01:33:54,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:33:54,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:33:54,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:33:54,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:33:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 01:33:54,057 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 01:33:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:33:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:33:54,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:33:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 01:33:54,173 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:33:54,174 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:33:54,270 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-12-06 01:33:54,270 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:33:54,303 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:33:54,303 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:33:54,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:33:54 BoogieIcfgContainer [2024-12-06 01:33:54,304 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:33:54,304 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:33:54,304 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:33:54,311 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:33:54,311 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:33:54" (1/1) ... [2024-12-06 01:33:54,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:33:54,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:33:54,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 01:33:54,354 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 01:33:54,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 01:33:54,357 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:33:54,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:33:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:33:54,453 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:33:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:33:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:33:54,533 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:33:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:33:54,559 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 01:33:54,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:33:54 ImpRootNode [2024-12-06 01:33:54,582 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:33:54,583 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:33:54,583 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:33:54,583 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:33:54,584 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:33:54" (3/4) ... [2024-12-06 01:33:54,586 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 01:33:54,587 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:33:54,587 INFO L158 Benchmark]: Toolchain (without parser) took 1432.56ms. Allocated memory is still 142.6MB. Free memory was 114.4MB in the beginning and 78.4MB in the end (delta: 36.0MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2024-12-06 01:33:54,588 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:33:54,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 789.86ms. Allocated memory is still 142.6MB. Free memory was 114.4MB in the beginning and 54.6MB in the end (delta: 59.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-06 01:33:54,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.86ms. Allocated memory is still 142.6MB. Free memory was 54.3MB in the beginning and 113.0MB in the end (delta: -58.7MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-12-06 01:33:54,589 INFO L158 Benchmark]: Boogie Preprocessor took 17.65ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 112.3MB in the end (delta: 663.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:33:54,589 INFO L158 Benchmark]: RCFGBuilder took 297.23ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 97.8MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:33:54,590 INFO L158 Benchmark]: CodeCheck took 277.76ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 79.1MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:33:54,590 INFO L158 Benchmark]: Witness Printer took 3.99ms. Allocated memory is still 142.6MB. Free memory was 79.1MB in the beginning and 78.4MB in the end (delta: 664.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:33:54,592 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_52c_badSink(data) [L1582] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 789.86ms. Allocated memory is still 142.6MB. Free memory was 114.4MB in the beginning and 54.6MB in the end (delta: 59.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.86ms. Allocated memory is still 142.6MB. Free memory was 54.3MB in the beginning and 113.0MB in the end (delta: -58.7MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.65ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 112.3MB in the end (delta: 663.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 297.23ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 97.8MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 277.76ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 79.1MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.99ms. Allocated memory is still 142.6MB. Free memory was 79.1MB in the beginning and 78.4MB in the end (delta: 664.0kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 01:33:54,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/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_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/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_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/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_ea094eb9-90ea-48e6-8028-18aa30b9acaf/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 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:33:56,513 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:33:56,596 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 01:33:56,621 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:33:56,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:33:56,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:33:56,622 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:33:56,622 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:33:56,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:33:56,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:33:56,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:33:56,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:33:56,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:33:56,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:33:56,623 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 01:33:56,623 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 01:33:56,623 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:33:56,623 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 01:33:56,623 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:33:56,623 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:33:56,623 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:33:56,623 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:33:56,624 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:33:56,624 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:33:56,624 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:33:56,624 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:33:56,624 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 01:33:56,624 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:33:56,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:33:56,624 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:33:56,624 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:33:56,624 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:33:56,625 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 01:33:56,625 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:33:56,625 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 01:33:56,625 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_ea094eb9-90ea-48e6-8028-18aa30b9acaf/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 -> 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a [2024-12-06 01:33:56,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:33:56,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:33:56,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:33:56,872 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:33:56,872 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:33:56,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i [2024-12-06 01:33:59,473 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/data/c4f2cf67e/b359a4a0d1fc4057a75fc621cfa76439/FLAG4ef0594f6 [2024-12-06 01:33:59,800 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:33:59,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i [2024-12-06 01:33:59,823 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/data/c4f2cf67e/b359a4a0d1fc4057a75fc621cfa76439/FLAG4ef0594f6 [2024-12-06 01:34:00,061 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/data/c4f2cf67e/b359a4a0d1fc4057a75fc621cfa76439 [2024-12-06 01:34:00,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:34:00,065 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:34:00,066 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:34:00,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:34:00,070 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:34:00,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:34:00" (1/1) ... [2024-12-06 01:34:00,071 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b0726cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:34:00, skipping insertion in model container [2024-12-06 01:34:00,071 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:34:00" (1/1) ... [2024-12-06 01:34:00,107 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:34:00,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:34:00,910 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:34:01,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:34:01,108 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:34:01,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:34:01 WrapperNode [2024-12-06 01:34:01,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:34:01,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:34:01,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:34:01,110 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:34:01,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:34:01" (1/1) ... [2024-12-06 01:34:01,132 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:34:01" (1/1) ... [2024-12-06 01:34:01,151 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 61 [2024-12-06 01:34:01,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:34:01,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:34:01,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:34:01,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:34:01,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:34:01" (1/1) ... [2024-12-06 01:34:01,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:34:01" (1/1) ... [2024-12-06 01:34:01,163 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:34:01" (1/1) ... [2024-12-06 01:34:01,163 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:34:01" (1/1) ... [2024-12-06 01:34:01,171 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:34:01" (1/1) ... [2024-12-06 01:34:01,172 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:34:01" (1/1) ... [2024-12-06 01:34:01,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:34:01" (1/1) ... [2024-12-06 01:34:01,175 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:34:01" (1/1) ... [2024-12-06 01:34:01,177 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:34:01" (1/1) ... [2024-12-06 01:34:01,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:34:01,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:34:01,180 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:34:01,180 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:34:01,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:34:01" (1/1) ... [2024-12-06 01:34:01,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:34:01,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:34:01,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:34:01,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:34:01,233 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 01:34:01,233 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 01:34:01,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 01:34:01,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:34:01,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:34:01,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:34:01,350 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:34:01,352 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:34:01,463 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-12-06 01:34:01,463 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:34:01,506 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:34:01,506 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:34:01,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:34:01 BoogieIcfgContainer [2024-12-06 01:34:01,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:34:01,507 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:34:01,507 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:34:01,516 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:34:01,516 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:34:01" (1/1) ... [2024-12-06 01:34:01,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:34:01,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:34:01,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 01:34:01,560 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 01:34:01,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 01:34:01,563 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:34:01,563 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 01:34:01,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 01:34:01,565 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 01:34:01,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 01:34:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:34:01,723 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:34:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:34:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:34:01,831 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:34:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:34:01,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 01:34:01,864 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 01:34:01,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:34:01 ImpRootNode [2024-12-06 01:34:01,886 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:34:01,887 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:34:01,887 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:34:01,887 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:34:01,888 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:34:01" (3/4) ... [2024-12-06 01:34:01,890 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 01:34:01,891 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:34:01,892 INFO L158 Benchmark]: Toolchain (without parser) took 1827.42ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 53.4MB in the end (delta: 12.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-12-06 01:34:01,893 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:34:01,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1043.19ms. Allocated memory is still 92.3MB. Free memory was 66.2MB in the beginning and 62.7MB in the end (delta: 3.4MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-12-06 01:34:01,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.23ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 59.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:34:01,894 INFO L158 Benchmark]: Boogie Preprocessor took 27.19ms. Allocated memory is still 92.3MB. Free memory was 59.6MB in the beginning and 58.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:34:01,894 INFO L158 Benchmark]: RCFGBuilder took 326.32ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 41.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:34:01,895 INFO L158 Benchmark]: CodeCheck took 379.12ms. Allocated memory is still 92.3MB. Free memory was 41.5MB in the beginning and 53.4MB in the end (delta: -11.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:34:01,895 INFO L158 Benchmark]: Witness Printer took 4.51ms. Allocated memory is still 92.3MB. Free memory was 53.4MB in the beginning and 53.4MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:34:01,898 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_52c_badSink(data) [L1582] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1043.19ms. Allocated memory is still 92.3MB. Free memory was 66.2MB in the beginning and 62.7MB in the end (delta: 3.4MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.23ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 59.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.19ms. Allocated memory is still 92.3MB. Free memory was 59.6MB in the beginning and 58.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 326.32ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 41.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 379.12ms. Allocated memory is still 92.3MB. Free memory was 41.5MB in the beginning and 53.4MB in the end (delta: -11.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.51ms. Allocated memory is still 92.3MB. Free memory was 53.4MB in the beginning and 53.4MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 01:34:01,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea094eb9-90ea-48e6-8028-18aa30b9acaf/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