./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_51_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_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/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_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/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_4e606eb9-03a0-497f-a380-33a5ae7ce327/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 7b04f392176375d25ddd9b836c223b22286636b2effde0c9ab3022927820c00a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:03:39,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:03:39,204 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-09 00:03:39,209 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:03:39,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:03:39,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:03:39,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:03:39,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:03:39,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:03:39,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:03:39,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:03:39,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:03:39,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:03:39,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:03:39,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:03:39,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:03:39,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:03:39,258 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:03:39,259 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:03:39,259 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:03:39,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:03:39,263 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:03:39,263 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:03:39,264 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:03:39,264 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:03:39,264 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:03:39,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:03:39,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:03:39,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:03:39,278 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:03:39,278 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:03:39,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:03:39,280 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_4e606eb9-03a0-497f-a380-33a5ae7ce327/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b04f392176375d25ddd9b836c223b22286636b2effde0c9ab3022927820c00a [2024-11-09 00:03:39,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:03:39,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:03:39,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:03:39,609 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:03:39,609 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:03:39,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_51_bad.i Unable to find full path for "g++" [2024-11-09 00:03:41,709 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:03:42,072 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:03:42,076 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_51_bad.i [2024-11-09 00:03:42,111 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/data/d28d4d173/79ad4862fc96411cabd2313d98f823f7/FLAGb8858fdb9 [2024-11-09 00:03:42,133 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/data/d28d4d173/79ad4862fc96411cabd2313d98f823f7 [2024-11-09 00:03:42,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:03:42,139 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:03:42,141 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:03:42,141 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:03:42,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:03:42,147 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:03:42" (1/1) ... [2024-11-09 00:03:42,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f7eee32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:42, skipping insertion in model container [2024-11-09 00:03:42,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:03:42" (1/1) ... [2024-11-09 00:03:42,230 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:03:43,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:03:43,377 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:03:43,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:03:43,758 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:03:43,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:43 WrapperNode [2024-11-09 00:03:43,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:03:43,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:03:43,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:03:43,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:03:43,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:43" (1/1) ... [2024-11-09 00:03:43,806 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:43" (1/1) ... [2024-11-09 00:03:43,837 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-11-09 00:03:43,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:03:43,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:03:43,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:03:43,840 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:03:43,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:43" (1/1) ... [2024-11-09 00:03:43,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:43" (1/1) ... [2024-11-09 00:03:43,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:43" (1/1) ... [2024-11-09 00:03:43,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:43" (1/1) ... [2024-11-09 00:03:43,857 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:43" (1/1) ... [2024-11-09 00:03:43,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:43" (1/1) ... [2024-11-09 00:03:43,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:43" (1/1) ... [2024-11-09 00:03:43,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:43" (1/1) ... [2024-11-09 00:03:43,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:03:43,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:03:43,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:03:43,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:03:43,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:43" (1/1) ... [2024-11-09 00:03:43,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:03:43,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:03:43,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:03:43,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:03:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:03:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:03:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:03:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:03:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:03:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:03:44,125 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:03:44,128 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:03:44,274 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-09 00:03:44,274 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:03:44,374 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:03:44,375 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:03:44,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:03:44 BoogieIcfgContainer [2024-11-09 00:03:44,376 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:03:44,377 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:03:44,377 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:03:44,396 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:03:44,397 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:03:44" (1/1) ... [2024-11-09 00:03:44,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:03:44,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:03:44,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-09 00:03:44,481 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 00:03:44,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:03:44,485 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:03:44,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:03:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:03:44,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:03:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:03:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:03:44,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:03:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:03:44,948 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-09 00:03:44,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:03:44 ImpRootNode [2024-11-09 00:03:44,998 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:03:45,002 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:03:45,002 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:03:45,002 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:03:45,003 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:03:44" (3/4) ... [2024-11-09 00:03:45,007 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:03:45,009 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:03:45,010 INFO L158 Benchmark]: Toolchain (without parser) took 2872.59ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 122.9MB in the beginning and 126.6MB in the end (delta: -3.7MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2024-11-09 00:03:45,010 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 159.4MB. Free memory is still 128.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:03:45,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1623.96ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 122.9MB in the beginning and 166.5MB in the end (delta: -43.6MB). Peak memory consumption was 82.3MB. Max. memory is 16.1GB. [2024-11-09 00:03:45,015 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.43ms. Allocated memory is still 201.3MB. Free memory was 166.5MB in the beginning and 164.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:03:45,017 INFO L158 Benchmark]: Boogie Preprocessor took 27.66ms. Allocated memory is still 201.3MB. Free memory was 164.4MB in the beginning and 162.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:03:45,017 INFO L158 Benchmark]: RCFGBuilder took 508.25ms. Allocated memory is still 201.3MB. Free memory was 162.2MB in the beginning and 146.6MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 00:03:45,019 INFO L158 Benchmark]: CodeCheck took 621.72ms. Allocated memory is still 201.3MB. Free memory was 146.6MB in the beginning and 126.6MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 00:03:45,020 INFO L158 Benchmark]: Witness Printer took 7.05ms. Allocated memory is still 201.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:03:45,026 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1577]: 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_sub_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_51b_badSink(data) [L1577] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 159.4MB. Free memory is still 128.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1623.96ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 122.9MB in the beginning and 166.5MB in the end (delta: -43.6MB). Peak memory consumption was 82.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.43ms. Allocated memory is still 201.3MB. Free memory was 166.5MB in the beginning and 164.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.66ms. Allocated memory is still 201.3MB. Free memory was 164.4MB in the beginning and 162.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.25ms. Allocated memory is still 201.3MB. Free memory was 162.2MB in the beginning and 146.6MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 621.72ms. Allocated memory is still 201.3MB. Free memory was 146.6MB in the beginning and 126.6MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 7.05ms. Allocated memory is still 201.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 00:03:45,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/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_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/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_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/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_4e606eb9-03a0-497f-a380-33a5ae7ce327/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 7b04f392176375d25ddd9b836c223b22286636b2effde0c9ab3022927820c00a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:03:48,259 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:03:48,376 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-09 00:03:48,439 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:03:48,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:03:48,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:03:48,443 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:03:48,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:03:48,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:03:48,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:03:48,446 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:03:48,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:03:48,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:03:48,454 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:03:48,454 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 00:03:48,454 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 00:03:48,455 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:03:48,455 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:03:48,456 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 00:03:48,456 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:03:48,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:03:48,460 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:03:48,460 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:03:48,460 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:03:48,461 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:03:48,461 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:03:48,462 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-09 00:03:48,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:03:48,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:03:48,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:03:48,463 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:03:48,464 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:03:48,464 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 00:03:48,465 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:03:48,465 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-09 00:03:48,465 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_4e606eb9-03a0-497f-a380-33a5ae7ce327/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b04f392176375d25ddd9b836c223b22286636b2effde0c9ab3022927820c00a [2024-11-09 00:03:49,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:03:49,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:03:49,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:03:49,082 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:03:49,083 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:03:49,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_51_bad.i Unable to find full path for "g++" [2024-11-09 00:03:51,727 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:03:52,253 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:03:52,253 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_51_bad.i [2024-11-09 00:03:52,285 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/data/81d3caefc/086d0103ffc24380a28056b8eb9f4d0b/FLAG73417e863 [2024-11-09 00:03:52,314 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/data/81d3caefc/086d0103ffc24380a28056b8eb9f4d0b [2024-11-09 00:03:52,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:03:52,319 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:03:52,324 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:03:52,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:03:52,332 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:03:52,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:03:52" (1/1) ... [2024-11-09 00:03:52,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a241d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:52, skipping insertion in model container [2024-11-09 00:03:52,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:03:52" (1/1) ... [2024-11-09 00:03:52,441 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:03:53,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:03:53,932 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:03:54,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:03:54,309 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:03:54,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:54 WrapperNode [2024-11-09 00:03:54,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:03:54,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:03:54,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:03:54,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:03:54,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:54" (1/1) ... [2024-11-09 00:03:54,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:54" (1/1) ... [2024-11-09 00:03:54,422 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2024-11-09 00:03:54,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:03:54,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:03:54,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:03:54,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:03:54,437 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:54" (1/1) ... [2024-11-09 00:03:54,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:54" (1/1) ... [2024-11-09 00:03:54,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:54" (1/1) ... [2024-11-09 00:03:54,446 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:54" (1/1) ... [2024-11-09 00:03:54,465 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:54" (1/1) ... [2024-11-09 00:03:54,467 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:54" (1/1) ... [2024-11-09 00:03:54,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:54" (1/1) ... [2024-11-09 00:03:54,480 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:54" (1/1) ... [2024-11-09 00:03:54,488 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:03:54,489 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:03:54,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:03:54,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:03:54,494 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:03:54" (1/1) ... [2024-11-09 00:03:54,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:03:54,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:03:54,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:03:54,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:03:54,590 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:03:54,591 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:03:54,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 00:03:54,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:03:54,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:03:54,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:03:54,794 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:03:54,796 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:03:55,037 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-09 00:03:55,037 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:03:55,149 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:03:55,151 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:03:55,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:03:55 BoogieIcfgContainer [2024-11-09 00:03:55,153 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:03:55,154 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:03:55,154 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:03:55,168 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:03:55,168 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:03:55" (1/1) ... [2024-11-09 00:03:55,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:03:55,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:03:55,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-09 00:03:55,272 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 00:03:55,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:03:55,280 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:03:55,280 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:03:55,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:03:55,284 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:03:55,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-09 00:03:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:03:55,596 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:03:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:03:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:03:55,828 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:03:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:03:55,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-09 00:03:55,905 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-09 00:03:55,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:03:55 ImpRootNode [2024-11-09 00:03:55,945 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:03:55,946 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:03:55,946 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:03:55,946 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:03:55,947 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:03:55" (3/4) ... [2024-11-09 00:03:55,951 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:03:55,953 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:03:55,955 INFO L158 Benchmark]: Toolchain (without parser) took 3635.22ms. Allocated memory was 71.3MB in the beginning and 117.4MB in the end (delta: 46.1MB). Free memory was 43.4MB in the beginning and 82.6MB in the end (delta: -39.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 00:03:55,955 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory was 47.1MB in the beginning and 47.1MB in the end (delta: 88.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:03:55,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1986.46ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 43.1MB in the beginning and 56.9MB in the end (delta: -13.8MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2024-11-09 00:03:55,957 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.34ms. Allocated memory is still 96.5MB. Free memory was 56.9MB in the beginning and 53.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:03:55,958 INFO L158 Benchmark]: Boogie Preprocessor took 64.05ms. Allocated memory is still 96.5MB. Free memory was 53.6MB in the beginning and 51.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:03:55,959 INFO L158 Benchmark]: RCFGBuilder took 663.94ms. Allocated memory is still 96.5MB. Free memory was 51.5MB in the beginning and 57.7MB in the end (delta: -6.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 00:03:55,960 INFO L158 Benchmark]: CodeCheck took 791.20ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 57.3MB in the beginning and 82.6MB in the end (delta: -25.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:03:55,961 INFO L158 Benchmark]: Witness Printer took 7.74ms. Allocated memory is still 117.4MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:03:55,967 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: 1577]: 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_sub_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_51b_badSink(data) [L1577] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory was 47.1MB in the beginning and 47.1MB in the end (delta: 88.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1986.46ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 43.1MB in the beginning and 56.9MB in the end (delta: -13.8MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.34ms. Allocated memory is still 96.5MB. Free memory was 56.9MB in the beginning and 53.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.05ms. Allocated memory is still 96.5MB. Free memory was 53.6MB in the beginning and 51.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 663.94ms. Allocated memory is still 96.5MB. Free memory was 51.5MB in the beginning and 57.7MB in the end (delta: -6.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 791.20ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 57.3MB in the beginning and 82.6MB in the end (delta: -25.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.74ms. Allocated memory is still 117.4MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 00:03:56,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e606eb9-03a0-497f-a380-33a5ae7ce327/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