./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_34_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm --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 ecc8bc71d47ab4f16e9dd0aa4e9639694751d537a0d648c3bb63ab711031f7f6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:05:24,975 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:05:25,081 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 22:05:25,089 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:05:25,089 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:05:25,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:05:25,110 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:05:25,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:05:25,110 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:05:25,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:05:25,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:05:25,111 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:05:25,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:05:25,111 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:05:25,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:05:25,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:05:25,111 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:05:25,112 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:05:25,112 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:05:25,112 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:05:25,112 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:05:25,112 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:05:25,112 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:05:25,112 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:05:25,112 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:05:25,113 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:05:25,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:05:25,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:05:25,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:05:25,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:05:25,113 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:05:25,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:05:25,113 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm 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 -> ecc8bc71d47ab4f16e9dd0aa4e9639694751d537a0d648c3bb63ab711031f7f6 [2024-11-13 22:05:25,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:05:25,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:05:25,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:05:25,429 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:05:25,430 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:05:25,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_34_bad.i Unable to find full path for "g++" [2024-11-13 22:05:27,292 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:05:27,714 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:05:27,715 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_34_bad.i [2024-11-13 22:05:27,753 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/data/90702d8e4/fb010663098d44eb9fc4f74aaeff93e9/FLAGa3b3dcca1 [2024-11-13 22:05:27,777 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/data/90702d8e4/fb010663098d44eb9fc4f74aaeff93e9 [2024-11-13 22:05:27,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:05:27,781 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:05:27,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:05:27,783 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:05:27,789 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:05:27,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:05:27" (1/1) ... [2024-11-13 22:05:27,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44dbdbb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:27, skipping insertion in model container [2024-11-13 22:05:27,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:05:27" (1/1) ... [2024-11-13 22:05:27,854 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:05:28,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:05:28,792 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:05:28,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:05:29,066 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:05:29,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:29 WrapperNode [2024-11-13 22:05:29,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:05:29,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:05:29,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:05:29,068 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:05:29,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:29" (1/1) ... [2024-11-13 22:05:29,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:29" (1/1) ... [2024-11-13 22:05:29,114 INFO L138 Inliner]: procedures = 498, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2024-11-13 22:05:29,115 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:05:29,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:05:29,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:05:29,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:05:29,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:29" (1/1) ... [2024-11-13 22:05:29,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:29" (1/1) ... [2024-11-13 22:05:29,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:29" (1/1) ... [2024-11-13 22:05:29,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:29" (1/1) ... [2024-11-13 22:05:29,133 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:29" (1/1) ... [2024-11-13 22:05:29,135 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:29" (1/1) ... [2024-11-13 22:05:29,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:29" (1/1) ... [2024-11-13 22:05:29,141 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:29" (1/1) ... [2024-11-13 22:05:29,143 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:05:29,144 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:05:29,144 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:05:29,144 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:05:29,145 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:29" (1/1) ... [2024-11-13 22:05:29,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:05:29,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:05:29,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:05:29,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:05:29,216 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 22:05:29,216 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 22:05:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 22:05:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 22:05:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:05:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:05:29,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:05:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 22:05:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 22:05:29,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 22:05:29,379 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:05:29,381 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:05:29,573 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-13 22:05:29,573 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:05:29,635 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:05:29,636 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 22:05:29,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:05:29 BoogieIcfgContainer [2024-11-13 22:05:29,638 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:05:29,638 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:05:29,639 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:05:29,652 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:05:29,654 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:05:29" (1/1) ... [2024-11-13 22:05:29,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:05:29,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:05:29,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 22:05:29,722 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 22:05:29,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 22:05:29,727 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:05:29,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:05:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:05:29,913 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:05:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:05:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:05:30,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:05:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:05:30,146 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 22:05:30,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:05:30 ImpRootNode [2024-11-13 22:05:30,194 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:05:30,195 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:05:30,195 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:05:30,195 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:05:30,196 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:05:29" (3/4) ... [2024-11-13 22:05:30,198 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 22:05:30,199 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:05:30,200 INFO L158 Benchmark]: Toolchain (without parser) took 2418.93ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 65.7MB in the end (delta: 50.0MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2024-11-13 22:05:30,201 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:05:30,201 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1284.20ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 106.4MB in the end (delta: 9.3MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-13 22:05:30,201 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.98ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 103.8MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:05:30,202 INFO L158 Benchmark]: Boogie Preprocessor took 28.05ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 102.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:05:30,202 INFO L158 Benchmark]: RCFGBuilder took 493.38ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 87.6MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:05:30,203 INFO L158 Benchmark]: CodeCheck took 555.92ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 66.3MB in the end (delta: 21.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:05:30,203 INFO L158 Benchmark]: Witness Printer took 4.49ms. Allocated memory is still 142.6MB. Free memory was 66.3MB in the beginning and 65.7MB in the end (delta: 612.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:05:30,205 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: 1573]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562, overapproximation of large string literal at line 1582, overapproximation of fgets at line 1560. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1582] 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) [L1582] 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] [L1583] CALL CWE191_Integer_Underflow__int_fgets_predec_34_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_fgets_predec_34_unionType myUnion; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={18459:0}] [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1569] myUnion.unionFirst = data [L1571] EXPR myUnion.unionSecond [L1571] int data = myUnion.unionSecond; [L1573] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1284.20ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 106.4MB in the end (delta: 9.3MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.98ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 103.8MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.05ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 102.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 493.38ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 87.6MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 555.92ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 66.3MB in the end (delta: 21.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.49ms. Allocated memory is still 142.6MB. Free memory was 66.3MB in the beginning and 65.7MB in the end (delta: 612.9kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 22:05:30,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm --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 ecc8bc71d47ab4f16e9dd0aa4e9639694751d537a0d648c3bb63ab711031f7f6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:05:32,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:05:32,899 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 22:05:32,941 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:05:32,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:05:32,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:05:32,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:05:32,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:05:32,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:05:32,946 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:05:32,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:05:32,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:05:32,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:05:32,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:05:32,948 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 22:05:32,948 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 22:05:32,948 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:05:32,948 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:05:32,948 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 22:05:32,948 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:05:32,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:05:32,949 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:05:32,949 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:05:32,949 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:05:32,950 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:05:32,950 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:05:32,950 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 22:05:32,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:05:32,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:05:32,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:05:32,951 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:05:32,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:05:32,951 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 22:05:32,951 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:05:32,952 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 22:05:32,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm 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 -> ecc8bc71d47ab4f16e9dd0aa4e9639694751d537a0d648c3bb63ab711031f7f6 [2024-11-13 22:05:33,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:05:33,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:05:33,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:05:33,314 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:05:33,314 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:05:33,319 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_34_bad.i Unable to find full path for "g++" [2024-11-13 22:05:35,334 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:05:35,874 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:05:35,876 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_34_bad.i [2024-11-13 22:05:35,912 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/data/efc890621/506810a1c7174723b52b3651a0033f0d/FLAG0f3009ac5 [2024-11-13 22:05:35,933 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/data/efc890621/506810a1c7174723b52b3651a0033f0d [2024-11-13 22:05:35,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:05:35,937 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:05:35,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:05:35,941 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:05:35,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:05:35,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:05:35" (1/1) ... [2024-11-13 22:05:35,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46283950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:35, skipping insertion in model container [2024-11-13 22:05:35,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:05:35" (1/1) ... [2024-11-13 22:05:36,016 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:05:36,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:05:36,965 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:05:37,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:05:37,292 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:05:37,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:37 WrapperNode [2024-11-13 22:05:37,293 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:05:37,294 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:05:37,294 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:05:37,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:05:37,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:37" (1/1) ... [2024-11-13 22:05:37,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:37" (1/1) ... [2024-11-13 22:05:37,369 INFO L138 Inliner]: procedures = 503, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2024-11-13 22:05:37,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:05:37,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:05:37,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:05:37,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:05:37,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:37" (1/1) ... [2024-11-13 22:05:37,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:37" (1/1) ... [2024-11-13 22:05:37,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:37" (1/1) ... [2024-11-13 22:05:37,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:37" (1/1) ... [2024-11-13 22:05:37,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:37" (1/1) ... [2024-11-13 22:05:37,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:37" (1/1) ... [2024-11-13 22:05:37,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:37" (1/1) ... [2024-11-13 22:05:37,412 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:37" (1/1) ... [2024-11-13 22:05:37,415 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:05:37,415 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:05:37,416 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:05:37,416 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:05:37,417 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:05:37" (1/1) ... [2024-11-13 22:05:37,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:05:37,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:05:37,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:05:37,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:05:37,467 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 22:05:37,468 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 22:05:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 22:05:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 22:05:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:05:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:05:37,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:05:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-13 22:05:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 22:05:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-13 22:05:37,623 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:05:37,625 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:05:37,876 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-13 22:05:37,877 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:05:37,949 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:05:37,949 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 22:05:37,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:05:37 BoogieIcfgContainer [2024-11-13 22:05:37,950 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:05:37,950 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:05:37,950 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:05:37,960 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:05:37,961 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:05:37" (1/1) ... [2024-11-13 22:05:37,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:05:38,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:05:38,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 22:05:38,014 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 22:05:38,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 22:05:38,017 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:05:38,018 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:05:38,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:05:38,020 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:05:38,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 22:05:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:05:38,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:05:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:05:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:05:38,516 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:05:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:05:38,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 22:05:38,575 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 22:05:38,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:05:38 ImpRootNode [2024-11-13 22:05:38,614 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:05:38,615 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:05:38,616 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:05:38,616 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:05:38,617 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:05:37" (3/4) ... [2024-11-13 22:05:38,619 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 22:05:38,620 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:05:38,621 INFO L158 Benchmark]: Toolchain (without parser) took 2683.69ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 90.4MB in the beginning and 185.7MB in the end (delta: -95.4MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2024-11-13 22:05:38,622 INFO L158 Benchmark]: CDTParser took 4.22ms. Allocated memory is still 117.4MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:05:38,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1353.13ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 60.2MB in the end (delta: 29.9MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. [2024-11-13 22:05:38,624 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.39ms. Allocated memory is still 117.4MB. Free memory was 60.2MB in the beginning and 57.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:05:38,625 INFO L158 Benchmark]: Boogie Preprocessor took 41.37ms. Allocated memory is still 117.4MB. Free memory was 57.2MB in the beginning and 55.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:05:38,625 INFO L158 Benchmark]: RCFGBuilder took 534.28ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 55.6MB in the beginning and 206.7MB in the end (delta: -151.1MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2024-11-13 22:05:38,626 INFO L158 Benchmark]: CodeCheck took 663.85ms. Allocated memory is still 243.3MB. Free memory was 206.7MB in the beginning and 185.7MB in the end (delta: 20.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:05:38,626 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 243.3MB. Free memory is still 185.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:05:38,631 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: 0.6s, 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: 1573]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562, overapproximation of large string literal at line 1582, overapproximation of fgets at line 1560. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1582] 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) [L1582] 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] [L1583] CALL CWE191_Integer_Underflow__int_fgets_predec_34_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_fgets_predec_34_unionType myUnion; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={5:0}] [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1569] myUnion.unionFirst = data [L1571] EXPR myUnion.unionSecond [L1571] int data = myUnion.unionSecond; [L1573] --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 4.22ms. Allocated memory is still 117.4MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1353.13ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 60.2MB in the end (delta: 29.9MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.39ms. Allocated memory is still 117.4MB. Free memory was 60.2MB in the beginning and 57.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.37ms. Allocated memory is still 117.4MB. Free memory was 57.2MB in the beginning and 55.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 534.28ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 55.6MB in the beginning and 206.7MB in the end (delta: -151.1MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * CodeCheck took 663.85ms. Allocated memory is still 243.3MB. Free memory was 206.7MB in the beginning and 185.7MB in the end (delta: 20.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 243.3MB. Free memory is still 185.7MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 22:05:38,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d14d14-8644-4317-9576-98d26d419868/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample