./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_67_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_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/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_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_67_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/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_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/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 c1211bce8eb0089a2d69702a08a9335e619394abed14881883a77f36d93d5781 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:03:23,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:03:23,701 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 04:03:23,707 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 04:03:23,708 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 04:03:23,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:03:23,757 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:03:23,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:03:23,758 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:03:23,758 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:03:23,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:03:23,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:03:23,759 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:03:23,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:03:23,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:03:23,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:03:23,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:03:23,759 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:03:23,759 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:03:23,759 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:03:23,760 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:03:23,760 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:03:23,760 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:03:23,760 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:03:23,760 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:03:23,760 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:03:23,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:03:23,760 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:03:23,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:03:23,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:03:23,763 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 04:03:23,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 04:03:23,764 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_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/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 -> c1211bce8eb0089a2d69702a08a9335e619394abed14881883a77f36d93d5781 [2024-11-25 04:03:24,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:03:24,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:03:24,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:03:24,167 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:03:24,168 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:03:24,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_67_bad.i [2024-11-25 04:03:27,341 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/data/fe1fb07a7/82926a75730846f6b1345ffa1b15a4c4/FLAGfcbe20d93 [2024-11-25 04:03:27,839 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:03:27,839 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_67_bad.i [2024-11-25 04:03:27,873 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/data/fe1fb07a7/82926a75730846f6b1345ffa1b15a4c4/FLAGfcbe20d93 [2024-11-25 04:03:27,919 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/data/fe1fb07a7/82926a75730846f6b1345ffa1b15a4c4 [2024-11-25 04:03:27,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:03:27,923 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:03:27,925 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:03:27,925 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:03:27,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:03:27,931 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:03:27" (1/1) ... [2024-11-25 04:03:27,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c762639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:27, skipping insertion in model container [2024-11-25 04:03:27,933 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:03:27" (1/1) ... [2024-11-25 04:03:27,989 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:03:29,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:03:29,129 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:03:29,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:03:29,442 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:03:29,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:29 WrapperNode [2024-11-25 04:03:29,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:03:29,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:03:29,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:03:29,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:03:29,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:29" (1/1) ... [2024-11-25 04:03:29,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:29" (1/1) ... [2024-11-25 04:03:29,520 INFO L138 Inliner]: procedures = 499, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2024-11-25 04:03:29,520 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:03:29,521 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:03:29,521 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:03:29,522 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:03:29,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:29" (1/1) ... [2024-11-25 04:03:29,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:29" (1/1) ... [2024-11-25 04:03:29,537 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:29" (1/1) ... [2024-11-25 04:03:29,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:29" (1/1) ... [2024-11-25 04:03:29,552 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:29" (1/1) ... [2024-11-25 04:03:29,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:29" (1/1) ... [2024-11-25 04:03:29,559 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:29" (1/1) ... [2024-11-25 04:03:29,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:29" (1/1) ... [2024-11-25 04:03:29,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:29" (1/1) ... [2024-11-25 04:03:29,568 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:03:29,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:03:29,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:03:29,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:03:29,574 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:29" (1/1) ... [2024-11-25 04:03:29,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:03:29,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:03:29,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:03:29,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:03:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 04:03:29,656 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 04:03:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 04:03:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 04:03:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:03:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:03:29,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:03:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 04:03:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 04:03:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 04:03:29,859 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:03:29,862 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:03:30,017 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-25 04:03:30,017 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:03:30,074 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:03:30,074 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:03:30,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:03:30 BoogieIcfgContainer [2024-11-25 04:03:30,075 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:03:30,076 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:03:30,076 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:03:30,088 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:03:30,088 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:03:30" (1/1) ... [2024-11-25 04:03:30,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:03:30,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:03:30,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 04:03:30,167 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 04:03:30,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:03:30,171 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:03:30,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:03:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:03:30,359 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:03:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:03:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:03:30,534 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:03:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:03:30,591 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 04:03:30,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:03:30 ImpRootNode [2024-11-25 04:03:30,673 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:03:30,673 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:03:30,674 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:03:30,674 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:03:30,675 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:03:30" (3/4) ... [2024-11-25 04:03:30,680 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:03:30,681 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:03:30,683 INFO L158 Benchmark]: Toolchain (without parser) took 2759.47ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 85.1MB in the end (delta: -3.6MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2024-11-25 04:03:30,685 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:03:30,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1518.91ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 71.6MB in the end (delta: 9.9MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2024-11-25 04:03:30,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.19ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 68.6MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:03:30,687 INFO L158 Benchmark]: Boogie Preprocessor took 50.45ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 67.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:03:30,687 INFO L158 Benchmark]: RCFGBuilder took 502.86ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 52.5MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:03:30,689 INFO L158 Benchmark]: CodeCheck took 596.78ms. Allocated memory is still 117.4MB. Free memory was 51.9MB in the beginning and 85.1MB in the end (delta: -33.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 04:03:30,689 INFO L158 Benchmark]: Witness Printer took 8.10ms. Allocated memory is still 117.4MB. Free memory was 85.1MB in the beginning and 85.1MB in the end (delta: 18.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:03:30,691 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, 0.1s 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562, overapproximation of fgets at line 1560. 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); [L1575] 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) [L1575] 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] [L1576] CALL CWE191_Integer_Underflow__int_fgets_postdec_67_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_fgets_postdec_67_structType myStruct; [L1557] data = 0 [L1559] 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, myStruct={11822:0}] [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1569] myStruct.structFirst = data [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_67b_badSink(myStruct) [L1581] EXPR myStruct.structFirst [L1581] int data = myStruct.structFirst; [L1583] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1518.91ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 71.6MB in the end (delta: 9.9MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.19ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 68.6MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.45ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 67.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 502.86ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 52.5MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 596.78ms. Allocated memory is still 117.4MB. Free memory was 51.9MB in the beginning and 85.1MB in the end (delta: -33.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 8.10ms. Allocated memory is still 117.4MB. Free memory was 85.1MB in the beginning and 85.1MB in the end (delta: 18.0kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 04:03:30,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/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_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/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_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_67_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/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_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/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 c1211bce8eb0089a2d69702a08a9335e619394abed14881883a77f36d93d5781 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:03:33,775 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:03:33,870 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 04:03:33,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:03:33,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:03:33,901 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:03:33,901 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:03:33,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:03:33,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:03:33,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:03:33,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:03:33,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:03:33,902 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:03:33,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:03:33,902 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 04:03:33,903 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 04:03:33,903 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:03:33,903 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 04:03:33,903 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:03:33,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:03:33,903 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:03:33,903 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:03:33,904 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:03:33,904 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:03:33,904 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:03:33,904 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:03:33,904 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 04:03:33,904 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:03:33,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:03:33,905 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:03:33,905 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:03:33,905 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:03:33,905 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 04:03:33,906 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:03:33,906 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 04:03:33,906 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_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/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 -> c1211bce8eb0089a2d69702a08a9335e619394abed14881883a77f36d93d5781 [2024-11-25 04:03:34,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:03:34,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:03:34,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:03:34,333 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:03:34,333 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:03:34,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_67_bad.i [2024-11-25 04:03:37,555 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/data/5440aaa63/1bf4a49773b14133a0655d0e9ec1d817/FLAGc7b25a790 [2024-11-25 04:03:38,105 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:03:38,106 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_67_bad.i [2024-11-25 04:03:38,146 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/data/5440aaa63/1bf4a49773b14133a0655d0e9ec1d817/FLAGc7b25a790 [2024-11-25 04:03:38,626 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/data/5440aaa63/1bf4a49773b14133a0655d0e9ec1d817 [2024-11-25 04:03:38,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:03:38,630 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:03:38,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:03:38,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:03:38,638 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:03:38,639 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:03:38" (1/1) ... [2024-11-25 04:03:38,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@305356f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:38, skipping insertion in model container [2024-11-25 04:03:38,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:03:38" (1/1) ... [2024-11-25 04:03:38,693 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:03:39,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:03:39,724 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:03:39,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:03:40,039 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:03:40,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:40 WrapperNode [2024-11-25 04:03:40,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:03:40,042 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:03:40,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:03:40,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:03:40,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:40" (1/1) ... [2024-11-25 04:03:40,098 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:40" (1/1) ... [2024-11-25 04:03:40,133 INFO L138 Inliner]: procedures = 504, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2024-11-25 04:03:40,134 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:03:40,135 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:03:40,135 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:03:40,135 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:03:40,144 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:40" (1/1) ... [2024-11-25 04:03:40,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:40" (1/1) ... [2024-11-25 04:03:40,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:40" (1/1) ... [2024-11-25 04:03:40,152 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:40" (1/1) ... [2024-11-25 04:03:40,170 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:40" (1/1) ... [2024-11-25 04:03:40,171 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:40" (1/1) ... [2024-11-25 04:03:40,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:40" (1/1) ... [2024-11-25 04:03:40,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:40" (1/1) ... [2024-11-25 04:03:40,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:40" (1/1) ... [2024-11-25 04:03:40,192 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:03:40,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:03:40,193 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:03:40,193 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:03:40,194 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:03:40" (1/1) ... [2024-11-25 04:03:40,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:03:40,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:03:40,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:03:40,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:03:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 04:03:40,273 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 04:03:40,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 04:03:40,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 04:03:40,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:03:40,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:03:40,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:03:40,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-25 04:03:40,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 04:03:40,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-25 04:03:40,461 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:03:40,463 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:03:40,662 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-25 04:03:40,663 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:03:40,737 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:03:40,740 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:03:40,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:03:40 BoogieIcfgContainer [2024-11-25 04:03:40,741 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:03:40,742 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:03:40,742 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:03:40,756 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:03:40,756 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:03:40" (1/1) ... [2024-11-25 04:03:40,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:03:40,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:03:40,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 04:03:40,818 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 04:03:40,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:03:40,822 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:03:40,823 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 04:03:40,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 04:03:40,826 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 04:03:40,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 04:03:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:03:41,130 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:03:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:03:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:03:41,575 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:03:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:03:41,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 04:03:41,745 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 04:03:41,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:03:41 ImpRootNode [2024-11-25 04:03:41,782 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:03:41,783 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:03:41,783 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:03:41,783 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:03:41,785 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:03:40" (3/4) ... [2024-11-25 04:03:41,787 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:03:41,788 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:03:41,790 INFO L158 Benchmark]: Toolchain (without parser) took 3158.66ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 74.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-11-25 04:03:41,790 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory was 85.5MB in the beginning and 85.5MB in the end (delta: 50.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:03:41,790 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1409.61ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 69.0MB in the end (delta: 20.6MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2024-11-25 04:03:41,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.85ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 66.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:03:41,794 INFO L158 Benchmark]: Boogie Preprocessor took 57.36ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 64.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:03:41,794 INFO L158 Benchmark]: RCFGBuilder took 548.16ms. Allocated memory is still 117.4MB. Free memory was 64.6MB in the beginning and 47.0MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:03:41,795 INFO L158 Benchmark]: CodeCheck took 1040.63ms. Allocated memory is still 117.4MB. Free memory was 46.5MB in the beginning and 74.0MB in the end (delta: -27.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:03:41,795 INFO L158 Benchmark]: Witness Printer took 5.23ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 74.0MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:03:41,800 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: 1.0s, 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, 0.2s 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562, overapproximation of fgets at line 1560. 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); [L1575] 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) [L1575] 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] [L1576] CALL CWE191_Integer_Underflow__int_fgets_postdec_67_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_fgets_postdec_67_structType myStruct; [L1557] data = 0 [L1559] 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, myStruct={7:0}] [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1569] myStruct.structFirst = data [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_67b_badSink(myStruct) [L1581] EXPR myStruct.structFirst [L1581] int data = myStruct.structFirst; [L1583] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory was 85.5MB in the beginning and 85.5MB in the end (delta: 50.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1409.61ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 69.0MB in the end (delta: 20.6MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.85ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 66.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.36ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 64.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 548.16ms. Allocated memory is still 117.4MB. Free memory was 64.6MB in the beginning and 47.0MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1040.63ms. Allocated memory is still 117.4MB. Free memory was 46.5MB in the beginning and 74.0MB in the end (delta: -27.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.23ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 74.0MB in the end (delta: 27.7kB). 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 04:03:41,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5411a69c-1925-4b6d-b7df-9ccb0a8024e8/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample