./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_54_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk --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 f34413006439766a3957dd65c07b6ee4aec896235e77741a9a672041c503d263 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:32:58,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:32:58,700 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 22:32:58,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:32:58,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:32:58,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:32:58,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:32:58,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:32:58,750 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:32:58,750 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:32:58,751 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:32:58,751 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:32:58,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:32:58,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:32:58,752 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:32:58,753 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:32:58,753 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:32:58,754 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:32:58,754 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:32:58,754 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:32:58,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:32:58,755 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:32:58,756 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:32:58,756 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:32:58,756 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:32:58,757 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:32:58,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:32:58,758 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:32:58,758 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:32:58,758 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:32:58,759 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:32:58,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:32:58,760 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f34413006439766a3957dd65c07b6ee4aec896235e77741a9a672041c503d263 [2024-11-08 22:32:59,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:32:59,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:32:59,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:32:59,067 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:32:59,082 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:32:59,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_54_bad.i Unable to find full path for "g++" [2024-11-08 22:33:01,196 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:33:01,610 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:33:01,613 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_54_bad.i [2024-11-08 22:33:01,644 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/data/682cd36a3/5ed804e4e1aa40eca86dd7fbeaf0188e/FLAGa46b4880c [2024-11-08 22:33:01,758 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/data/682cd36a3/5ed804e4e1aa40eca86dd7fbeaf0188e [2024-11-08 22:33:01,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:33:01,762 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:33:01,764 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:33:01,764 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:33:01,770 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:33:01,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:33:01" (1/1) ... [2024-11-08 22:33:01,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29cfa838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:01, skipping insertion in model container [2024-11-08 22:33:01,774 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:33:01" (1/1) ... [2024-11-08 22:33:01,849 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:33:02,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:33:02,921 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:33:03,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:33:03,175 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:33:03,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:03 WrapperNode [2024-11-08 22:33:03,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:33:03,177 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:33:03,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:33:03,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:33:03,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:03" (1/1) ... [2024-11-08 22:33:03,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:03" (1/1) ... [2024-11-08 22:33:03,254 INFO L138 Inliner]: procedures = 502, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 75 [2024-11-08 22:33:03,255 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:33:03,255 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:33:03,255 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:33:03,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:33:03,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:03" (1/1) ... [2024-11-08 22:33:03,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:03" (1/1) ... [2024-11-08 22:33:03,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:03" (1/1) ... [2024-11-08 22:33:03,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:03" (1/1) ... [2024-11-08 22:33:03,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:03" (1/1) ... [2024-11-08 22:33:03,276 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:03" (1/1) ... [2024-11-08 22:33:03,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:03" (1/1) ... [2024-11-08 22:33:03,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:03" (1/1) ... [2024-11-08 22:33:03,281 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:33:03,282 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:33:03,283 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:33:03,283 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:33:03,284 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:03" (1/1) ... [2024-11-08 22:33:03,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:33:03,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:33:03,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:33:03,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:33:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:33:03,370 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:33:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:33:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:33:03,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:33:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:33:03,512 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:33:03,515 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:33:03,674 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-08 22:33:03,674 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:33:03,721 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:33:03,721 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:33:03,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:33:03 BoogieIcfgContainer [2024-11-08 22:33:03,721 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:33:03,722 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:33:03,722 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:33:03,733 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:33:03,733 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:33:03" (1/1) ... [2024-11-08 22:33:03,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:33:03,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:33:03,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 22:33:03,789 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 22:33:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:33:03,793 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:33:03,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:33:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:33:04,016 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:33:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:33:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:33:04,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:33:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:33:04,227 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 22:33:04,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:33:04 ImpRootNode [2024-11-08 22:33:04,262 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:33:04,264 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:33:04,265 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:33:04,265 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:33:04,265 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:33:03" (3/4) ... [2024-11-08 22:33:04,270 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:33:04,272 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:33:04,273 INFO L158 Benchmark]: Toolchain (without parser) took 2511.23ms. Allocated memory is still 159.4MB. Free memory was 94.9MB in the beginning and 91.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-11-08 22:33:04,274 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 159.4MB. Free memory was 134.9MB in the beginning and 134.8MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:33:04,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1412.52ms. Allocated memory is still 159.4MB. Free memory was 94.6MB in the beginning and 73.0MB in the end (delta: 21.6MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2024-11-08 22:33:04,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.78ms. Allocated memory is still 159.4MB. Free memory was 73.0MB in the beginning and 70.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 22:33:04,279 INFO L158 Benchmark]: Boogie Preprocessor took 26.56ms. Allocated memory is still 159.4MB. Free memory was 70.1MB in the beginning and 68.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:33:04,279 INFO L158 Benchmark]: RCFGBuilder took 439.12ms. Allocated memory is still 159.4MB. Free memory was 68.8MB in the beginning and 112.8MB in the end (delta: -43.9MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-11-08 22:33:04,280 INFO L158 Benchmark]: CodeCheck took 539.52ms. Allocated memory is still 159.4MB. Free memory was 112.8MB in the beginning and 91.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 22:33:04,281 INFO L158 Benchmark]: Witness Printer took 8.10ms. Allocated memory is still 159.4MB. Free memory was 91.8MB in the beginning and 91.5MB in the end (delta: 339.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:33:04,284 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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 - UnprovableResult [Line: 1592]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_postdec_54e_badSink(data) [L1592] 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 0.24ms. Allocated memory is still 159.4MB. Free memory was 134.9MB in the beginning and 134.8MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1412.52ms. Allocated memory is still 159.4MB. Free memory was 94.6MB in the beginning and 73.0MB in the end (delta: 21.6MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.78ms. Allocated memory is still 159.4MB. Free memory was 73.0MB in the beginning and 70.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.56ms. Allocated memory is still 159.4MB. Free memory was 70.1MB in the beginning and 68.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 439.12ms. Allocated memory is still 159.4MB. Free memory was 68.8MB in the beginning and 112.8MB in the end (delta: -43.9MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * CodeCheck took 539.52ms. Allocated memory is still 159.4MB. Free memory was 112.8MB in the beginning and 91.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 8.10ms. Allocated memory is still 159.4MB. Free memory was 91.8MB in the beginning and 91.5MB in the end (delta: 339.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 22:33:04,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk --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 f34413006439766a3957dd65c07b6ee4aec896235e77741a9a672041c503d263 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:33:06,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:33:06,941 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 22:33:06,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:33:06,983 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:33:06,984 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:33:06,985 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:33:06,988 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:33:06,988 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:33:06,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:33:06,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:33:06,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:33:06,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:33:06,993 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:33:06,993 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 22:33:06,994 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 22:33:06,994 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:33:06,994 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:33:06,995 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 22:33:06,995 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:33:06,995 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:33:06,999 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:33:07,000 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:33:07,000 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:33:07,000 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:33:07,000 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:33:07,001 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 22:33:07,001 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:33:07,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:33:07,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:33:07,002 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:33:07,002 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:33:07,002 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 22:33:07,003 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:33:07,004 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 22:33:07,004 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f34413006439766a3957dd65c07b6ee4aec896235e77741a9a672041c503d263 [2024-11-08 22:33:07,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:33:07,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:33:07,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:33:07,381 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:33:07,382 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:33:07,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_54_bad.i Unable to find full path for "g++" [2024-11-08 22:33:09,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:33:09,974 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:33:09,974 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_54_bad.i [2024-11-08 22:33:10,007 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/data/23d1ca2f9/c717213422f347a3a2a1724fb6f975a6/FLAGeac0e5f9d [2024-11-08 22:33:10,102 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/data/23d1ca2f9/c717213422f347a3a2a1724fb6f975a6 [2024-11-08 22:33:10,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:33:10,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:33:10,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:33:10,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:33:10,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:33:10,118 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:33:10" (1/1) ... [2024-11-08 22:33:10,119 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@456637e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:10, skipping insertion in model container [2024-11-08 22:33:10,119 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:33:10" (1/1) ... [2024-11-08 22:33:10,193 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:33:11,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:33:11,330 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:33:11,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:33:11,589 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:33:11,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:11 WrapperNode [2024-11-08 22:33:11,589 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:33:11,590 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:33:11,590 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:33:11,590 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:33:11,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:11" (1/1) ... [2024-11-08 22:33:11,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:11" (1/1) ... [2024-11-08 22:33:11,653 INFO L138 Inliner]: procedures = 507, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 74 [2024-11-08 22:33:11,654 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:33:11,655 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:33:11,655 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:33:11,655 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:33:11,665 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:11" (1/1) ... [2024-11-08 22:33:11,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:11" (1/1) ... [2024-11-08 22:33:11,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:11" (1/1) ... [2024-11-08 22:33:11,669 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:11" (1/1) ... [2024-11-08 22:33:11,677 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:11" (1/1) ... [2024-11-08 22:33:11,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:11" (1/1) ... [2024-11-08 22:33:11,685 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:11" (1/1) ... [2024-11-08 22:33:11,687 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:11" (1/1) ... [2024-11-08 22:33:11,698 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:33:11,698 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:33:11,699 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:33:11,699 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:33:11,699 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:33:11" (1/1) ... [2024-11-08 22:33:11,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:33:11,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:33:11,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:33:11,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:33:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:33:11,765 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:33:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 22:33:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:33:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:33:11,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:33:11,929 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:33:11,931 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:33:12,098 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-08 22:33:12,099 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:33:12,183 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:33:12,184 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:33:12,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:33:12 BoogieIcfgContainer [2024-11-08 22:33:12,184 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:33:12,185 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:33:12,185 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:33:12,196 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:33:12,196 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:33:12" (1/1) ... [2024-11-08 22:33:12,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:33:12,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:33:12,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 22:33:12,260 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 22:33:12,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:33:12,264 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:33:12,265 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:33:12,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:33:12,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:33:12,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 22:33:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:33:12,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:33:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:33:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:33:12,678 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:33:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:33:12,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 22:33:12,747 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 22:33:12,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:33:12 ImpRootNode [2024-11-08 22:33:12,791 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:33:12,792 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:33:12,792 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:33:12,793 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:33:12,793 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:33:12" (3/4) ... [2024-11-08 22:33:12,798 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:33:12,800 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:33:12,801 INFO L158 Benchmark]: Toolchain (without parser) took 2694.97ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 59.2MB in the beginning and 46.3MB in the end (delta: 12.9MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2024-11-08 22:33:12,802 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 81.8MB. Free memory was 57.8MB in the beginning and 57.6MB in the end (delta: 148.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:33:12,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1482.55ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 58.9MB in the beginning and 58.4MB in the end (delta: 533.8kB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2024-11-08 22:33:12,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.04ms. Allocated memory is still 104.9MB. Free memory was 58.4MB in the beginning and 55.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:33:12,805 INFO L158 Benchmark]: Boogie Preprocessor took 43.14ms. Allocated memory is still 104.9MB. Free memory was 55.3MB in the beginning and 53.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:33:12,806 INFO L158 Benchmark]: RCFGBuilder took 485.88ms. Allocated memory is still 104.9MB. Free memory was 53.2MB in the beginning and 66.4MB in the end (delta: -13.2MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-11-08 22:33:12,806 INFO L158 Benchmark]: CodeCheck took 606.59ms. Allocated memory is still 104.9MB. Free memory was 65.8MB in the beginning and 46.3MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 22:33:12,807 INFO L158 Benchmark]: Witness Printer took 7.74ms. Allocated memory is still 104.9MB. Free memory is still 46.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:33:12,810 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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 - UnprovableResult [Line: 1592]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_postdec_54e_badSink(data) [L1592] 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 0.31ms. Allocated memory is still 81.8MB. Free memory was 57.8MB in the beginning and 57.6MB in the end (delta: 148.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1482.55ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 58.9MB in the beginning and 58.4MB in the end (delta: 533.8kB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.04ms. Allocated memory is still 104.9MB. Free memory was 58.4MB in the beginning and 55.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.14ms. Allocated memory is still 104.9MB. Free memory was 55.3MB in the beginning and 53.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 485.88ms. Allocated memory is still 104.9MB. Free memory was 53.2MB in the beginning and 66.4MB in the end (delta: -13.2MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * CodeCheck took 606.59ms. Allocated memory is still 104.9MB. Free memory was 65.8MB in the beginning and 46.3MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 7.74ms. Allocated memory is still 104.9MB. Free memory is still 46.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 22:33:12,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff76a3e0-b4a4-43e0-a8c2-8de9e36225e2/bin/ukojak-verify-ImItNfHLgk/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