./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_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_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3 --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 ba64d58b3e01052798cfd796bd911f497689e4f5efd7291b07f123a324c18dc2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:12:53,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:12:53,481 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 02:12:53,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:12:53,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:12:53,523 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:12:53,525 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:12:53,525 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:12:53,526 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:12:53,526 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:12:53,527 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:12:53,528 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:12:53,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:12:53,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:12:53,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:12:53,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:12:53,529 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:12:53,529 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:12:53,529 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:12:53,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:12:53,529 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:12:53,529 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:12:53,530 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:12:53,530 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:12:53,530 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:12:53,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:12:53,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:12:53,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:12:53,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:12:53,532 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:12:53,532 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:12:53,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:12:53,532 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_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3 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 -> ba64d58b3e01052798cfd796bd911f497689e4f5efd7291b07f123a324c18dc2 [2024-11-25 02:12:53,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:12:53,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:12:53,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:12:53,874 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:12:53,875 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:12:53,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_bad.i [2024-11-25 02:12:56,990 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/data/60101a2ec/3dd1fbf176fa4662b9921f99033603e3/FLAG521b67587 [2024-11-25 02:12:57,564 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:12:57,565 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_bad.i [2024-11-25 02:12:57,589 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/data/60101a2ec/3dd1fbf176fa4662b9921f99033603e3/FLAG521b67587 [2024-11-25 02:12:57,610 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/data/60101a2ec/3dd1fbf176fa4662b9921f99033603e3 [2024-11-25 02:12:57,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:12:57,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:12:57,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:12:57,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:12:57,623 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:12:57,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:12:57" (1/1) ... [2024-11-25 02:12:57,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf4e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:57, skipping insertion in model container [2024-11-25 02:12:57,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:12:57" (1/1) ... [2024-11-25 02:12:57,693 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:12:58,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:12:58,728 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:12:58,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:12:58,981 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:12:58,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:58 WrapperNode [2024-11-25 02:12:58,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:12:58,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:12:58,983 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:12:58,983 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:12:58,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:58" (1/1) ... [2024-11-25 02:12:59,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:58" (1/1) ... [2024-11-25 02:12:59,048 INFO L138 Inliner]: procedures = 499, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2024-11-25 02:12:59,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:12:59,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:12:59,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:12:59,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:12:59,055 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:58" (1/1) ... [2024-11-25 02:12:59,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:58" (1/1) ... [2024-11-25 02:12:59,058 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:58" (1/1) ... [2024-11-25 02:12:59,058 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:58" (1/1) ... [2024-11-25 02:12:59,064 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:58" (1/1) ... [2024-11-25 02:12:59,065 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:58" (1/1) ... [2024-11-25 02:12:59,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:58" (1/1) ... [2024-11-25 02:12:59,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:58" (1/1) ... [2024-11-25 02:12:59,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:58" (1/1) ... [2024-11-25 02:12:59,073 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:12:59,073 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:12:59,074 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:12:59,074 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:12:59,075 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:58" (1/1) ... [2024-11-25 02:12:59,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:12:59,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:12:59,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:12:59,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:12:59,159 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:12:59,159 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:12:59,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 02:12:59,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 02:12:59,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:12:59,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:12:59,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:12:59,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 02:12:59,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 02:12:59,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:12:59,300 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:12:59,303 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:12:59,430 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-25 02:12:59,430 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:12:59,467 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:12:59,467 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:12:59,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:12:59 BoogieIcfgContainer [2024-11-25 02:12:59,468 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:12:59,468 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:12:59,468 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:12:59,478 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:12:59,479 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:12:59" (1/1) ... [2024-11-25 02:12:59,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:12:59,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:12:59,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:12:59,535 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:12:59,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:12:59,540 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:12:59,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:12:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:12:59,745 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:12:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:12:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:12:59,902 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:12:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:12:59,965 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 02:12:59,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:12:59 ImpRootNode [2024-11-25 02:12:59,999 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:13:00,000 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:13:00,000 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:13:00,000 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:13:00,001 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:12:59" (3/4) ... [2024-11-25 02:13:00,007 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:13:00,008 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:13:00,012 INFO L158 Benchmark]: Toolchain (without parser) took 2393.70ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 66.4MB in the end (delta: 49.5MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-11-25 02:13:00,012 INFO L158 Benchmark]: CDTParser took 2.73ms. Allocated memory is still 142.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:13:00,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1364.49ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 106.6MB in the end (delta: 9.4MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-25 02:13:00,013 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.45ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 103.8MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:13:00,013 INFO L158 Benchmark]: Boogie Preprocessor took 24.22ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 102.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:13:00,014 INFO L158 Benchmark]: RCFGBuilder took 394.17ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 88.1MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:13:00,014 INFO L158 Benchmark]: CodeCheck took 530.86ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 66.4MB in the end (delta: 21.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:13:00,014 INFO L158 Benchmark]: Witness Printer took 8.23ms. Allocated memory is still 142.6MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:13:00,019 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. 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); [L1571] 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) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_fgets_sub_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={31599:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] dataArray[2] = data [L1566] CALL CWE191_Integer_Underflow__int_fgets_sub_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1580] 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 2.73ms. Allocated memory is still 142.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1364.49ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 106.6MB in the end (delta: 9.4MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.45ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 103.8MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.22ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 102.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 394.17ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 88.1MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 530.86ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 66.4MB in the end (delta: 21.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 8.23ms. Allocated memory is still 142.6MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:13:00,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/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_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3 --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 ba64d58b3e01052798cfd796bd911f497689e4f5efd7291b07f123a324c18dc2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:13:02,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:13:02,913 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 02:13:02,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:13:02,956 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:13:02,957 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:13:02,957 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:13:02,957 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:13:02,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:13:02,958 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:13:02,959 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:13:02,960 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:13:02,960 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:13:02,960 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:13:02,960 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 02:13:02,960 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 02:13:02,961 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:13:02,961 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 02:13:02,961 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:13:02,961 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:13:02,961 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:13:02,962 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:13:02,962 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:13:02,962 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:13:02,962 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:13:02,962 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:13:02,962 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 02:13:02,962 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:13:02,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:13:02,963 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:13:02,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:13:02,963 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:13:02,963 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 02:13:02,963 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:13:02,963 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 02:13:02,963 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_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3 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 -> ba64d58b3e01052798cfd796bd911f497689e4f5efd7291b07f123a324c18dc2 [2024-11-25 02:13:03,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:13:03,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:13:03,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:13:03,314 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:13:03,314 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:13:03,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_bad.i [2024-11-25 02:13:06,424 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/data/994cfb133/0f2bcfece7e14b2fb0b0f24b8b1bc15b/FLAG3ea4526d4 [2024-11-25 02:13:06,905 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:13:06,905 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_bad.i [2024-11-25 02:13:06,946 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/data/994cfb133/0f2bcfece7e14b2fb0b0f24b8b1bc15b/FLAG3ea4526d4 [2024-11-25 02:13:06,970 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/data/994cfb133/0f2bcfece7e14b2fb0b0f24b8b1bc15b [2024-11-25 02:13:06,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:13:06,975 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:13:06,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:13:06,977 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:13:06,982 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:13:06,983 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:13:06" (1/1) ... [2024-11-25 02:13:06,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70547354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:06, skipping insertion in model container [2024-11-25 02:13:06,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:13:06" (1/1) ... [2024-11-25 02:13:07,052 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:13:08,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:13:08,050 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:13:08,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:13:08,450 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:13:08,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:08 WrapperNode [2024-11-25 02:13:08,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:13:08,453 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:13:08,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:13:08,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:13:08,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:08" (1/1) ... [2024-11-25 02:13:08,500 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:08" (1/1) ... [2024-11-25 02:13:08,537 INFO L138 Inliner]: procedures = 504, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-11-25 02:13:08,538 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:13:08,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:13:08,539 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:13:08,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:13:08,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:08" (1/1) ... [2024-11-25 02:13:08,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:08" (1/1) ... [2024-11-25 02:13:08,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:08" (1/1) ... [2024-11-25 02:13:08,556 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:08" (1/1) ... [2024-11-25 02:13:08,582 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:08" (1/1) ... [2024-11-25 02:13:08,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:08" (1/1) ... [2024-11-25 02:13:08,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:08" (1/1) ... [2024-11-25 02:13:08,610 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:08" (1/1) ... [2024-11-25 02:13:08,611 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:08" (1/1) ... [2024-11-25 02:13:08,617 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:13:08,618 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:13:08,618 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:13:08,621 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:13:08,622 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:08" (1/1) ... [2024-11-25 02:13:08,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:13:08,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:13:08,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:13:08,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:13:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:13:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:13:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 02:13:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 02:13:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:13:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:13:08,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:13:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-25 02:13:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 02:13:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-25 02:13:08,888 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:13:08,890 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:13:09,080 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-25 02:13:09,080 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:13:09,133 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:13:09,133 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:13:09,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:13:09 BoogieIcfgContainer [2024-11-25 02:13:09,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:13:09,134 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:13:09,135 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:13:09,151 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:13:09,151 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:13:09" (1/1) ... [2024-11-25 02:13:09,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:13:09,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:13:09,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:13:09,219 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:13:09,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:13:09,224 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:13:09,224 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:13:09,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:13:09,228 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:13:09,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 02:13:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:13:09,516 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:13:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:13:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:13:09,780 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:13:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:13:09,839 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-25 02:13:09,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-25 02:13:09,847 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 02:13:09,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:13:09 ImpRootNode [2024-11-25 02:13:09,883 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:13:09,884 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:13:09,884 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:13:09,884 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:13:09,884 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:13:09" (3/4) ... [2024-11-25 02:13:09,888 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:13:09,889 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:13:09,892 INFO L158 Benchmark]: Toolchain (without parser) took 2915.59ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 31.8MB in the end (delta: 25.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-25 02:13:09,893 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:13:09,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1476.28ms. Allocated memory is still 83.9MB. Free memory was 56.6MB in the beginning and 49.9MB in the end (delta: 6.7MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2024-11-25 02:13:09,893 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.55ms. Allocated memory is still 83.9MB. Free memory was 49.9MB in the beginning and 47.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:13:09,894 INFO L158 Benchmark]: Boogie Preprocessor took 78.64ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 45.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:13:09,897 INFO L158 Benchmark]: RCFGBuilder took 516.17ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 52.3MB in the end (delta: -6.7MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2024-11-25 02:13:09,897 INFO L158 Benchmark]: CodeCheck took 748.55ms. Allocated memory is still 83.9MB. Free memory was 52.3MB in the beginning and 32.3MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:13:09,897 INFO L158 Benchmark]: Witness Printer took 5.52ms. Allocated memory is still 83.9MB. Free memory is still 31.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:13:09,900 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: 0.7s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. 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); [L1571] 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) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_fgets_sub_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] dataArray[2] = data [L1566] CALL CWE191_Integer_Underflow__int_fgets_sub_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1580] 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 0.33ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1476.28ms. Allocated memory is still 83.9MB. Free memory was 56.6MB in the beginning and 49.9MB in the end (delta: 6.7MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.55ms. Allocated memory is still 83.9MB. Free memory was 49.9MB in the beginning and 47.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 78.64ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 45.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 516.17ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 52.3MB in the end (delta: -6.7MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * CodeCheck took 748.55ms. Allocated memory is still 83.9MB. Free memory was 52.3MB in the beginning and 32.3MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.52ms. Allocated memory is still 83.9MB. Free memory is still 31.8MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:13:09,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d27baf-13a2-4d03-b7b7-cfd8762e8a05/bin/ukojak-verify-ENZ3QT5qd3/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