./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_53_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/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_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/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_e752c91f-eae2-4426-b56e-3c536411f779/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 8f6de09dba1b3f1176ea0a80ce54a3a4cd49d4566091ab5ae868b00cdbb33286 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:39:14,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:39:14,595 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 23:39:14,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:39:14,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:39:14,621 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:39:14,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:39:14,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:39:14,622 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:39:14,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:39:14,623 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:39:14,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:39:14,625 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:39:14,629 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:39:14,630 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:39:14,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:39:14,630 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:39:14,630 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:39:14,631 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:39:14,631 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:39:14,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:39:14,633 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:39:14,634 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:39:14,634 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:39:14,634 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:39:14,635 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:39:14,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:39:14,635 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:39:14,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:39:14,636 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:39:14,637 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:39:14,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:39:14,638 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_e752c91f-eae2-4426-b56e-3c536411f779/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f6de09dba1b3f1176ea0a80ce54a3a4cd49d4566091ab5ae868b00cdbb33286 [2024-11-08 23:39:14,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:39:14,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:39:14,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:39:14,949 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:39:14,962 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:39:14,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_53_bad.i Unable to find full path for "g++" [2024-11-08 23:39:17,466 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:39:17,879 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:39:17,882 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_53_bad.i [2024-11-08 23:39:17,930 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/data/239f84c5a/3628726fc9014735a94836b31c5690ac/FLAGc283c6379 [2024-11-08 23:39:17,949 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/data/239f84c5a/3628726fc9014735a94836b31c5690ac [2024-11-08 23:39:17,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:39:17,955 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:39:17,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:39:17,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:39:17,966 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:39:17,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:39:17" (1/1) ... [2024-11-08 23:39:17,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514cc04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:17, skipping insertion in model container [2024-11-08 23:39:17,969 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:39:17" (1/1) ... [2024-11-08 23:39:18,091 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:39:19,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:39:19,545 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:39:19,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:39:20,014 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:39:20,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:20 WrapperNode [2024-11-08 23:39:20,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:39:20,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:39:20,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:39:20,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:39:20,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:20" (1/1) ... [2024-11-08 23:39:20,065 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:20" (1/1) ... [2024-11-08 23:39:20,097 INFO L138 Inliner]: procedures = 501, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 73 [2024-11-08 23:39:20,098 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:39:20,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:39:20,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:39:20,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:39:20,112 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:20" (1/1) ... [2024-11-08 23:39:20,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:20" (1/1) ... [2024-11-08 23:39:20,117 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:20" (1/1) ... [2024-11-08 23:39:20,117 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:20" (1/1) ... [2024-11-08 23:39:20,124 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:20" (1/1) ... [2024-11-08 23:39:20,127 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:20" (1/1) ... [2024-11-08 23:39:20,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:20" (1/1) ... [2024-11-08 23:39:20,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:20" (1/1) ... [2024-11-08 23:39:20,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:39:20,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:39:20,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:39:20,136 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:39:20,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:20" (1/1) ... [2024-11-08 23:39:20,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:39:20,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:39:20,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:39:20,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:39:20,222 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:39:20,222 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:39:20,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:39:20,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:39:20,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:39:20,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:39:20,422 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:39:20,425 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:39:20,633 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-08 23:39:20,633 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:39:20,701 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:39:20,701 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:39:20,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:39:20 BoogieIcfgContainer [2024-11-08 23:39:20,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:39:20,708 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:39:20,708 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:39:20,724 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:39:20,724 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:39:20" (1/1) ... [2024-11-08 23:39:20,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:39:20,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:39:20,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:39:20,801 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:39:20,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:39:20,808 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:39:20,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:39:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:39:20,977 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:39:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:39:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:39:21,109 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:39:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:39:21,158 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:39:21,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:39:21 ImpRootNode [2024-11-08 23:39:21,184 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:39:21,185 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:39:21,185 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:39:21,185 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:39:21,186 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:39:20" (3/4) ... [2024-11-08 23:39:21,189 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:39:21,190 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:39:21,191 INFO L158 Benchmark]: Toolchain (without parser) took 3236.05ms. Allocated memory was 142.6MB in the beginning and 209.7MB in the end (delta: 67.1MB). Free memory was 96.1MB in the beginning and 105.6MB in the end (delta: -9.5MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2024-11-08 23:39:21,192 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 105.8MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:39:21,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2059.14ms. Allocated memory was 142.6MB in the beginning and 209.7MB in the end (delta: 67.1MB). Free memory was 96.1MB in the beginning and 147.5MB in the end (delta: -51.5MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. [2024-11-08 23:39:21,193 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.01ms. Allocated memory is still 209.7MB. Free memory was 147.5MB in the beginning and 144.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 23:39:21,194 INFO L158 Benchmark]: Boogie Preprocessor took 36.03ms. Allocated memory is still 209.7MB. Free memory was 144.4MB in the beginning and 143.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:39:21,195 INFO L158 Benchmark]: RCFGBuilder took 566.86ms. Allocated memory is still 209.7MB. Free memory was 143.3MB in the beginning and 126.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 23:39:21,196 INFO L158 Benchmark]: CodeCheck took 476.64ms. Allocated memory is still 209.7MB. Free memory was 126.6MB in the beginning and 106.3MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 23:39:21,196 INFO L158 Benchmark]: Witness Printer took 5.29ms. Allocated memory is still 209.7MB. Free memory was 106.3MB in the beginning and 105.6MB in the end (delta: 715.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:39:21,200 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: 0.4s, 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: 1587]: 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_predec_53_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_predec_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_53d_badSink(data) [L1587] --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 0.36ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 105.8MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2059.14ms. Allocated memory was 142.6MB in the beginning and 209.7MB in the end (delta: 67.1MB). Free memory was 96.1MB in the beginning and 147.5MB in the end (delta: -51.5MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.01ms. Allocated memory is still 209.7MB. Free memory was 147.5MB in the beginning and 144.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.03ms. Allocated memory is still 209.7MB. Free memory was 144.4MB in the beginning and 143.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 566.86ms. Allocated memory is still 209.7MB. Free memory was 143.3MB in the beginning and 126.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 476.64ms. Allocated memory is still 209.7MB. Free memory was 126.6MB in the beginning and 106.3MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.29ms. Allocated memory is still 209.7MB. Free memory was 106.3MB in the beginning and 105.6MB in the end (delta: 715.3kB). 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 23:39:21,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/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_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/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_e752c91f-eae2-4426-b56e-3c536411f779/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 8f6de09dba1b3f1176ea0a80ce54a3a4cd49d4566091ab5ae868b00cdbb33286 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:39:23,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:39:23,755 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 23:39:23,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:39:23,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:39:23,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:39:23,802 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:39:23,804 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:39:23,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:39:23,805 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:39:23,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:39:23,806 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:39:23,807 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:39:23,809 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:39:23,810 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:39:23,810 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:39:23,811 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:39:23,811 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:39:23,811 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:39:23,812 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:39:23,812 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:39:23,816 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:39:23,817 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:39:23,817 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:39:23,817 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:39:23,817 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:39:23,818 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:39:23,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:39:23,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:39:23,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:39:23,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:39:23,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:39:23,820 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:39:23,822 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:39:23,823 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:39:23,823 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_e752c91f-eae2-4426-b56e-3c536411f779/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f6de09dba1b3f1176ea0a80ce54a3a4cd49d4566091ab5ae868b00cdbb33286 [2024-11-08 23:39:24,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:39:24,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:39:24,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:39:24,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:39:24,259 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:39:24,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_53_bad.i Unable to find full path for "g++" [2024-11-08 23:39:26,231 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:39:26,582 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:39:26,585 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_53_bad.i [2024-11-08 23:39:26,616 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/data/bf958a669/90e987903ca54f0dad8cfe41d6790b55/FLAG174042a8d [2024-11-08 23:39:26,637 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/data/bf958a669/90e987903ca54f0dad8cfe41d6790b55 [2024-11-08 23:39:26,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:39:26,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:39:26,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:39:26,646 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:39:26,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:39:26,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:39:26" (1/1) ... [2024-11-08 23:39:26,654 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@267215c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:26, skipping insertion in model container [2024-11-08 23:39:26,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:39:26" (1/1) ... [2024-11-08 23:39:26,729 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:39:27,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:39:27,963 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:39:28,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:39:28,265 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:39:28,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:28 WrapperNode [2024-11-08 23:39:28,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:39:28,267 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:39:28,268 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:39:28,268 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:39:28,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:28" (1/1) ... [2024-11-08 23:39:28,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:28" (1/1) ... [2024-11-08 23:39:28,352 INFO L138 Inliner]: procedures = 506, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 72 [2024-11-08 23:39:28,353 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:39:28,354 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:39:28,354 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:39:28,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:39:28,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:28" (1/1) ... [2024-11-08 23:39:28,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:28" (1/1) ... [2024-11-08 23:39:28,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:28" (1/1) ... [2024-11-08 23:39:28,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:28" (1/1) ... [2024-11-08 23:39:28,390 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:28" (1/1) ... [2024-11-08 23:39:28,392 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:28" (1/1) ... [2024-11-08 23:39:28,402 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:28" (1/1) ... [2024-11-08 23:39:28,404 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:28" (1/1) ... [2024-11-08 23:39:28,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:39:28,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:39:28,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:39:28,415 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:39:28,416 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:28" (1/1) ... [2024-11-08 23:39:28,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:39:28,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:39:28,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:39:28,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:39:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:39:28,526 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:39:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 23:39:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:39:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:39:28,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:39:28,739 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:39:28,745 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:39:29,040 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-08 23:39:29,040 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:39:29,120 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:39:29,121 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:39:29,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:39:29 BoogieIcfgContainer [2024-11-08 23:39:29,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:39:29,123 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:39:29,123 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:39:29,163 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:39:29,164 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:39:29" (1/1) ... [2024-11-08 23:39:29,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:39:29,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:39:29,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:39:29,260 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:39:29,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:39:29,268 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:39:29,269 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:39:29,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:39:29,273 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:39:29,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:39:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:39:29,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:39:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:39:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:39:29,853 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:39:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:39:29,923 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-08 23:39:29,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 23:39:29,929 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:39:29,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:39:29 ImpRootNode [2024-11-08 23:39:29,979 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:39:29,980 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:39:29,981 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:39:29,981 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:39:29,982 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:39:29" (3/4) ... [2024-11-08 23:39:29,986 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:39:29,988 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:39:29,989 INFO L158 Benchmark]: Toolchain (without parser) took 3344.49ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 35.0MB in the beginning and 36.5MB in the end (delta: -1.6MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2024-11-08 23:39:29,990 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 67.1MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 105.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:39:29,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1621.04ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 34.8MB in the beginning and 38.1MB in the end (delta: -3.3MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2024-11-08 23:39:29,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.37ms. Allocated memory is still 86.0MB. Free memory was 37.7MB in the beginning and 55.4MB in the end (delta: -17.6MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2024-11-08 23:39:29,993 INFO L158 Benchmark]: Boogie Preprocessor took 56.71ms. Allocated memory is still 86.0MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:39:29,995 INFO L158 Benchmark]: RCFGBuilder took 710.73ms. Allocated memory is still 86.0MB. Free memory was 53.3MB in the beginning and 34.8MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 23:39:29,996 INFO L158 Benchmark]: CodeCheck took 856.09ms. Allocated memory is still 86.0MB. Free memory was 34.8MB in the beginning and 37.0MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:39:29,997 INFO L158 Benchmark]: Witness Printer took 7.90ms. Allocated memory is still 86.0MB. Free memory was 37.0MB in the beginning and 36.5MB in the end (delta: 420.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:39:30,004 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: 0.7s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1587]: 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_predec_53_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_predec_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_53d_badSink(data) [L1587] --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 0.23ms. Allocated memory is still 67.1MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 105.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1621.04ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 34.8MB in the beginning and 38.1MB in the end (delta: -3.3MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.37ms. Allocated memory is still 86.0MB. Free memory was 37.7MB in the beginning and 55.4MB in the end (delta: -17.6MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.71ms. Allocated memory is still 86.0MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 710.73ms. Allocated memory is still 86.0MB. Free memory was 53.3MB in the beginning and 34.8MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 856.09ms. Allocated memory is still 86.0MB. Free memory was 34.8MB in the beginning and 37.0MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.90ms. Allocated memory is still 86.0MB. Free memory was 37.0MB in the beginning and 36.5MB in the end (delta: 420.1kB). 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 23:39:30,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e752c91f-eae2-4426-b56e-3c536411f779/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