./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 05:14:34,168 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 05:14:34,271 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 05:14:34,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 05:14:34,278 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 05:14:34,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 05:14:34,316 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 05:14:34,316 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 05:14:34,317 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 05:14:34,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 05:14:34,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 05:14:34,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 05:14:34,318 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 05:14:34,318 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 05:14:34,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 05:14:34,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 05:14:34,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 05:14:34,319 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 05:14:34,319 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 05:14:34,319 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 05:14:34,319 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 05:14:34,319 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 05:14:34,319 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 05:14:34,319 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 05:14:34,319 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 05:14:34,320 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 05:14:34,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:14:34,321 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 05:14:34,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 05:14:34,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 05:14:34,321 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 05:14:34,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 05:14:34,322 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_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a [2024-11-25 05:14:34,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 05:14:34,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 05:14:34,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 05:14:34,688 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 05:14:34,689 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 05:14:34,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2024-11-25 05:14:37,864 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/data/ea6473eea/d31cbba6ec2d43d5bf741fff778226c9/FLAG8ce5d06bb [2024-11-25 05:14:38,286 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 05:14:38,289 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2024-11-25 05:14:38,326 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/data/ea6473eea/d31cbba6ec2d43d5bf741fff778226c9/FLAG8ce5d06bb [2024-11-25 05:14:38,352 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/data/ea6473eea/d31cbba6ec2d43d5bf741fff778226c9 [2024-11-25 05:14:38,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 05:14:38,357 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 05:14:38,361 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 05:14:38,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 05:14:38,366 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 05:14:38,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:14:38" (1/1) ... [2024-11-25 05:14:38,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef256ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:38, skipping insertion in model container [2024-11-25 05:14:38,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:14:38" (1/1) ... [2024-11-25 05:14:38,420 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 05:14:39,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:14:39,368 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 05:14:39,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:14:39,648 INFO L204 MainTranslator]: Completed translation [2024-11-25 05:14:39,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:39 WrapperNode [2024-11-25 05:14:39,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 05:14:39,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 05:14:39,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 05:14:39,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 05:14:39,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:39" (1/1) ... [2024-11-25 05:14:39,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:39" (1/1) ... [2024-11-25 05:14:39,719 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-11-25 05:14:39,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 05:14:39,720 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 05:14:39,720 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 05:14:39,720 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 05:14:39,727 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:39" (1/1) ... [2024-11-25 05:14:39,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:39" (1/1) ... [2024-11-25 05:14:39,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:39" (1/1) ... [2024-11-25 05:14:39,730 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:39" (1/1) ... [2024-11-25 05:14:39,735 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:39" (1/1) ... [2024-11-25 05:14:39,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:39" (1/1) ... [2024-11-25 05:14:39,737 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:39" (1/1) ... [2024-11-25 05:14:39,738 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:39" (1/1) ... [2024-11-25 05:14:39,739 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:39" (1/1) ... [2024-11-25 05:14:39,741 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 05:14:39,742 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 05:14:39,742 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 05:14:39,742 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 05:14:39,743 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:39" (1/1) ... [2024-11-25 05:14:39,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:14:39,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 05:14:39,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 05:14:39,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 05:14:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 05:14:39,819 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 05:14:39,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 05:14:39,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 05:14:39,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 05:14:39,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 05:14:39,958 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 05:14:39,960 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 05:14:40,085 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-25 05:14:40,085 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 05:14:40,123 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 05:14:40,123 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 05:14:40,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:14:40 BoogieIcfgContainer [2024-11-25 05:14:40,124 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 05:14:40,125 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 05:14:40,125 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 05:14:40,135 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 05:14:40,135 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:14:40" (1/1) ... [2024-11-25 05:14:40,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 05:14:40,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:14:40,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 05:14:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 05:14:40,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 05:14:40,200 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:14:40,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:14:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:14:40,356 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 05:14:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:14:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:14:40,504 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 05:14:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:14:40,552 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 05:14:40,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 05:14:40 ImpRootNode [2024-11-25 05:14:40,595 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 05:14:40,596 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 05:14:40,596 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 05:14:40,596 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 05:14:40,597 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:14:40" (3/4) ... [2024-11-25 05:14:40,599 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 05:14:40,600 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 05:14:40,603 INFO L158 Benchmark]: Toolchain (without parser) took 2243.27ms. Allocated memory is still 142.6MB. Free memory was 114.8MB in the beginning and 67.3MB in the end (delta: 47.5MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2024-11-25 05:14:40,604 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:14:40,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1289.66ms. Allocated memory is still 142.6MB. Free memory was 114.6MB in the beginning and 104.4MB in the end (delta: 10.2MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2024-11-25 05:14:40,606 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.14ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 101.7MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 05:14:40,607 INFO L158 Benchmark]: Boogie Preprocessor took 21.74ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 101.1MB in the end (delta: 591.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:14:40,607 INFO L158 Benchmark]: RCFGBuilder took 381.96ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 86.6MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 05:14:40,607 INFO L158 Benchmark]: CodeCheck took 470.69ms. Allocated memory is still 142.6MB. Free memory was 86.6MB in the beginning and 67.3MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 05:14:40,608 INFO L158 Benchmark]: Witness Printer took 4.03ms. Allocated memory is still 142.6MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:14:40,613 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of fgets at line 1558. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_postdec_68_badData; [L1550] int CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData; [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData=0, 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) [L1573] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE191_Integer_Underflow__int_fgets_postdec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData=0, 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] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE191_Integer_Underflow__int_fgets_postdec_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_postdec_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_postdec_68_badData; [L1585] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData=0, 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 0.37ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1289.66ms. Allocated memory is still 142.6MB. Free memory was 114.6MB in the beginning and 104.4MB in the end (delta: 10.2MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.14ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 101.7MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.74ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 101.1MB in the end (delta: 591.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 381.96ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 86.6MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 470.69ms. Allocated memory is still 142.6MB. Free memory was 86.6MB in the beginning and 67.3MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.03ms. Allocated memory is still 142.6MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 05:14:40,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 05:14:43,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 05:14:43,379 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 05:14:43,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 05:14:43,448 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 05:14:43,448 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 05:14:43,448 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 05:14:43,448 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 05:14:43,448 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 05:14:43,449 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 05:14:43,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 05:14:43,449 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 05:14:43,449 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 05:14:43,449 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 05:14:43,449 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 05:14:43,449 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 05:14:43,449 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 05:14:43,449 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 05:14:43,450 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 05:14:43,450 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 05:14:43,451 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 05:14:43,451 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 05:14:43,452 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 05:14:43,452 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 05:14:43,452 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 05:14:43,452 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 05:14:43,452 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 05:14:43,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 05:14:43,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:14:43,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 05:14:43,453 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 05:14:43,453 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 05:14:43,453 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 05:14:43,454 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 05:14:43,454 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 05:14:43,454 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_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a [2024-11-25 05:14:43,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 05:14:43,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 05:14:43,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 05:14:43,790 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 05:14:43,791 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 05:14:43,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2024-11-25 05:14:46,849 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/data/8cd64d6a7/e57d39cbb85349ff9fd7751b36b16c77/FLAGb2e7e5124 [2024-11-25 05:14:47,243 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 05:14:47,244 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2024-11-25 05:14:47,268 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/data/8cd64d6a7/e57d39cbb85349ff9fd7751b36b16c77/FLAGb2e7e5124 [2024-11-25 05:14:47,410 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/data/8cd64d6a7/e57d39cbb85349ff9fd7751b36b16c77 [2024-11-25 05:14:47,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 05:14:47,414 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 05:14:47,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 05:14:47,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 05:14:47,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 05:14:47,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:14:47" (1/1) ... [2024-11-25 05:14:47,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d8ee50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:47, skipping insertion in model container [2024-11-25 05:14:47,422 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:14:47" (1/1) ... [2024-11-25 05:14:47,468 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 05:14:48,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:14:48,580 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 05:14:48,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:14:48,869 INFO L204 MainTranslator]: Completed translation [2024-11-25 05:14:48,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:48 WrapperNode [2024-11-25 05:14:48,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 05:14:48,871 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 05:14:48,871 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 05:14:48,871 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 05:14:48,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:48" (1/1) ... [2024-11-25 05:14:48,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:48" (1/1) ... [2024-11-25 05:14:48,926 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2024-11-25 05:14:48,927 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 05:14:48,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 05:14:48,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 05:14:48,928 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 05:14:48,936 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:48" (1/1) ... [2024-11-25 05:14:48,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:48" (1/1) ... [2024-11-25 05:14:48,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:48" (1/1) ... [2024-11-25 05:14:48,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:48" (1/1) ... [2024-11-25 05:14:48,962 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:48" (1/1) ... [2024-11-25 05:14:48,963 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:48" (1/1) ... [2024-11-25 05:14:48,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:48" (1/1) ... [2024-11-25 05:14:48,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:48" (1/1) ... [2024-11-25 05:14:48,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:48" (1/1) ... [2024-11-25 05:14:48,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 05:14:48,974 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 05:14:48,974 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 05:14:48,974 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 05:14:48,975 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:48" (1/1) ... [2024-11-25 05:14:48,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:14:48,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 05:14:49,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 05:14:49,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 05:14:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 05:14:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 05:14:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 05:14:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 05:14:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 05:14:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 05:14:49,186 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 05:14:49,188 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 05:14:49,361 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-25 05:14:49,361 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 05:14:49,436 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 05:14:49,436 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 05:14:49,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:14:49 BoogieIcfgContainer [2024-11-25 05:14:49,438 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 05:14:49,438 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 05:14:49,439 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 05:14:49,449 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 05:14:49,450 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:14:49" (1/1) ... [2024-11-25 05:14:49,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 05:14:49,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:14:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 05:14:49,516 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 05:14:49,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 05:14:49,521 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:14:49,521 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 05:14:49,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 05:14:49,526 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 05:14:49,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 05:14:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:14:49,773 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 05:14:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:14:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:14:49,915 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 05:14:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:14:49,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 05:14:49,972 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 05:14:50,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 05:14:50 ImpRootNode [2024-11-25 05:14:50,009 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 05:14:50,014 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 05:14:50,014 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 05:14:50,014 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 05:14:50,015 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:14:49" (3/4) ... [2024-11-25 05:14:50,019 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 05:14:50,020 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 05:14:50,024 INFO L158 Benchmark]: Toolchain (without parser) took 2606.99ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 77.0MB in the end (delta: 11.8MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2024-11-25 05:14:50,024 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:14:50,024 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1454.95ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 66.5MB in the end (delta: 22.1MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2024-11-25 05:14:50,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.71ms. Allocated memory is still 117.4MB. Free memory was 66.5MB in the beginning and 63.6MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:14:50,025 INFO L158 Benchmark]: Boogie Preprocessor took 46.24ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 62.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:14:50,025 INFO L158 Benchmark]: RCFGBuilder took 463.68ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 45.3MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 05:14:50,026 INFO L158 Benchmark]: CodeCheck took 571.06ms. Allocated memory is still 117.4MB. Free memory was 45.3MB in the beginning and 77.1MB in the end (delta: -31.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:14:50,026 INFO L158 Benchmark]: Witness Printer took 6.09ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 77.0MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:14:50,032 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s 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, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of fgets at line 1558. 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); [L1573] 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) [L1573] 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] [L1574] CALL CWE191_Integer_Underflow__int_fgets_postdec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] 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] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE191_Integer_Underflow__int_fgets_postdec_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_postdec_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_postdec_68_badData; [L1585] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=-2147483648, 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 0.32ms. Allocated memory is still 117.4MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1454.95ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 66.5MB in the end (delta: 22.1MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.71ms. Allocated memory is still 117.4MB. Free memory was 66.5MB in the beginning and 63.6MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.24ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 62.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 463.68ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 45.3MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 571.06ms. Allocated memory is still 117.4MB. Free memory was 45.3MB in the beginning and 77.1MB in the end (delta: -31.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.09ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 77.0MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 05:14:50,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40acb822-0764-49b7-8798-20cc884068c1/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample