./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_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_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/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_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/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_b1f68347-9e1e-4a73-919b-3a18e4154be5/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 b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 05:00:59,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 05:00:59,794 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 05:00:59,801 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 05:00:59,802 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 05:00:59,837 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 05:00:59,839 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 05:00:59,839 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 05:00:59,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 05:00:59,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 05:00:59,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 05:00:59,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 05:00:59,840 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 05:00:59,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 05:00:59,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 05:00:59,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 05:00:59,841 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 05:00:59,841 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 05:00:59,841 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 05:00:59,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 05:00:59,841 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 05:00:59,841 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 05:00:59,841 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 05:00:59,841 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 05:00:59,841 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 05:00:59,842 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 05:00:59,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:00:59,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 05:00:59,842 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 05:00:59,842 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 05:00:59,842 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 05:00:59,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 05:00:59,842 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_b1f68347-9e1e-4a73-919b-3a18e4154be5/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 -> b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb [2024-11-25 05:01:00,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 05:01:00,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 05:01:00,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 05:01:00,202 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 05:01:00,202 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 05:01:00,203 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-11-25 05:01:03,243 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/data/92d5348d0/bdd0f9da54ab48aab43df02350718199/FLAG04a3143d9 [2024-11-25 05:01:03,825 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 05:01:03,825 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-11-25 05:01:03,858 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/data/92d5348d0/bdd0f9da54ab48aab43df02350718199/FLAG04a3143d9 [2024-11-25 05:01:04,316 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/data/92d5348d0/bdd0f9da54ab48aab43df02350718199 [2024-11-25 05:01:04,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 05:01:04,321 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 05:01:04,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 05:01:04,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 05:01:04,327 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 05:01:04,328 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:01:04" (1/1) ... [2024-11-25 05:01:04,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@420a85fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:04, skipping insertion in model container [2024-11-25 05:01:04,329 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:01:04" (1/1) ... [2024-11-25 05:01:04,375 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 05:01:05,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:01:05,383 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 05:01:05,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:01:05,682 INFO L204 MainTranslator]: Completed translation [2024-11-25 05:01:05,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:05 WrapperNode [2024-11-25 05:01:05,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 05:01:05,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 05:01:05,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 05:01:05,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 05:01:05,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:05" (1/1) ... [2024-11-25 05:01:05,710 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:05" (1/1) ... [2024-11-25 05:01:05,730 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-11-25 05:01:05,730 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 05:01:05,731 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 05:01:05,731 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 05:01:05,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 05:01:05,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:05" (1/1) ... [2024-11-25 05:01:05,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:05" (1/1) ... [2024-11-25 05:01:05,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:05" (1/1) ... [2024-11-25 05:01:05,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:05" (1/1) ... [2024-11-25 05:01:05,747 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:05" (1/1) ... [2024-11-25 05:01:05,748 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:05" (1/1) ... [2024-11-25 05:01:05,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:05" (1/1) ... [2024-11-25 05:01:05,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:05" (1/1) ... [2024-11-25 05:01:05,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:05" (1/1) ... [2024-11-25 05:01:05,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 05:01:05,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 05:01:05,755 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 05:01:05,755 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 05:01:05,760 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:05" (1/1) ... [2024-11-25 05:01:05,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:01:05,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 05:01:05,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 05:01:05,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 05:01:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 05:01:05,828 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 05:01:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 05:01:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 05:01:05,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 05:01:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 05:01:05,992 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 05:01:05,994 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 05:01:06,149 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-25 05:01:06,149 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 05:01:06,198 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 05:01:06,198 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 05:01:06,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:01:06 BoogieIcfgContainer [2024-11-25 05:01:06,199 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 05:01:06,199 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 05:01:06,200 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 05:01:06,211 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 05:01:06,211 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:01:06" (1/1) ... [2024-11-25 05:01:06,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 05:01:06,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:01:06,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-11-25 05:01:06,278 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-11-25 05:01:06,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 05:01:06,282 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:01:06,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:01:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:01:06,448 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 05:01:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:01:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:01:06,554 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 05:01:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:01:06,587 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 05:01:06,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 05:01:06 ImpRootNode [2024-11-25 05:01:06,616 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 05:01:06,616 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 05:01:06,616 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 05:01:06,617 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 05:01:06,617 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:01:06" (3/4) ... [2024-11-25 05:01:06,620 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 05:01:06,621 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 05:01:06,622 INFO L158 Benchmark]: Toolchain (without parser) took 2301.36ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 45.5MB in the end (delta: 45.4MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. [2024-11-25 05:01:06,622 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:01:06,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1361.81ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 82.3MB in the end (delta: 8.2MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. [2024-11-25 05:01:06,623 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.16ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 79.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:01:06,626 INFO L158 Benchmark]: Boogie Preprocessor took 22.82ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 05:01:06,627 INFO L158 Benchmark]: RCFGBuilder took 444.43ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 64.5MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 05:01:06,627 INFO L158 Benchmark]: CodeCheck took 416.17ms. Allocated memory is still 117.4MB. Free memory was 64.5MB in the beginning and 46.0MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 05:01:06,628 INFO L158 Benchmark]: Witness Printer took 4.84ms. Allocated memory is still 117.4MB. Free memory was 46.0MB in the beginning and 45.5MB in the end (delta: 590.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 05:01:06,634 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of fgets at line 1566. 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] static int badStatic = 0; [L1581] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1361.81ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 82.3MB in the end (delta: 8.2MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.16ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 79.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.82ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 444.43ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 64.5MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 416.17ms. Allocated memory is still 117.4MB. Free memory was 64.5MB in the beginning and 46.0MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.84ms. Allocated memory is still 117.4MB. Free memory was 46.0MB in the beginning and 45.5MB in the end (delta: 590.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 05:01:06,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/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_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/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_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/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_b1f68347-9e1e-4a73-919b-3a18e4154be5/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 b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 05:01:09,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 05:01:09,498 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 05:01:09,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 05:01:09,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 05:01:09,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 05:01:09,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 05:01:09,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 05:01:09,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 05:01:09,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 05:01:09,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 05:01:09,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 05:01:09,551 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 05:01:09,551 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 05:01:09,551 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 05:01:09,552 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 05:01:09,552 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 05:01:09,552 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 05:01:09,553 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 05:01:09,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 05:01:09,553 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 05:01:09,553 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 05:01:09,554 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 05:01:09,554 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 05:01:09,554 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 05:01:09,554 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 05:01:09,554 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 05:01:09,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 05:01:09,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:01:09,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 05:01:09,554 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 05:01:09,554 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 05:01:09,555 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 05:01:09,555 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 05:01:09,555 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 05:01:09,555 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_b1f68347-9e1e-4a73-919b-3a18e4154be5/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 -> b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb [2024-11-25 05:01:09,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 05:01:09,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 05:01:09,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 05:01:09,891 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 05:01:09,892 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 05:01:09,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-11-25 05:01:12,946 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/data/986d15cd2/744bb2a785814bf8988552a54884dd50/FLAGb775f1303 [2024-11-25 05:01:13,426 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 05:01:13,430 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-11-25 05:01:13,466 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/data/986d15cd2/744bb2a785814bf8988552a54884dd50/FLAGb775f1303 [2024-11-25 05:01:13,492 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/data/986d15cd2/744bb2a785814bf8988552a54884dd50 [2024-11-25 05:01:13,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 05:01:13,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 05:01:13,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 05:01:13,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 05:01:13,507 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 05:01:13,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:01:13" (1/1) ... [2024-11-25 05:01:13,511 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ad74957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:13, skipping insertion in model container [2024-11-25 05:01:13,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:01:13" (1/1) ... [2024-11-25 05:01:13,574 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 05:01:14,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:01:14,556 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 05:01:14,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:01:14,890 INFO L204 MainTranslator]: Completed translation [2024-11-25 05:01:14,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:14 WrapperNode [2024-11-25 05:01:14,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 05:01:14,891 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 05:01:14,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 05:01:14,892 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 05:01:14,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:14" (1/1) ... [2024-11-25 05:01:14,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:14" (1/1) ... [2024-11-25 05:01:14,950 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2024-11-25 05:01:14,953 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 05:01:14,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 05:01:14,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 05:01:14,954 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 05:01:14,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:14" (1/1) ... [2024-11-25 05:01:14,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:14" (1/1) ... [2024-11-25 05:01:14,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:14" (1/1) ... [2024-11-25 05:01:14,971 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:14" (1/1) ... [2024-11-25 05:01:14,978 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:14" (1/1) ... [2024-11-25 05:01:14,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:14" (1/1) ... [2024-11-25 05:01:14,981 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:14" (1/1) ... [2024-11-25 05:01:14,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:14" (1/1) ... [2024-11-25 05:01:14,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:14" (1/1) ... [2024-11-25 05:01:14,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 05:01:14,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 05:01:14,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 05:01:14,989 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 05:01:14,990 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:14" (1/1) ... [2024-11-25 05:01:14,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:01:15,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 05:01:15,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 05:01:15,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 05:01:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 05:01:15,049 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 05:01:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 05:01:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 05:01:15,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 05:01:15,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 05:01:15,221 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 05:01:15,223 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 05:01:15,379 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-25 05:01:15,379 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 05:01:15,456 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 05:01:15,456 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 05:01:15,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:01:15 BoogieIcfgContainer [2024-11-25 05:01:15,456 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 05:01:15,457 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 05:01:15,457 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 05:01:15,470 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 05:01:15,470 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:01:15" (1/1) ... [2024-11-25 05:01:15,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 05:01:15,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:01:15,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-11-25 05:01:15,542 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-11-25 05:01:15,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 05:01:15,546 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:01:15,547 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 05:01:15,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 05:01:15,552 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 05:01:15,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 05:01:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:01:15,784 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 05:01:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:01:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:01:15,923 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 05:01:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:01:15,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 05:01:15,977 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 05:01:16,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 05:01:16 ImpRootNode [2024-11-25 05:01:16,013 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 05:01:16,014 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 05:01:16,015 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 05:01:16,015 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 05:01:16,016 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:01:15" (3/4) ... [2024-11-25 05:01:16,019 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 05:01:16,019 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 05:01:16,020 INFO L158 Benchmark]: Toolchain (without parser) took 2522.42ms. Allocated memory is still 83.9MB. Free memory was 57.5MB in the beginning and 35.3MB in the end (delta: 22.2MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2024-11-25 05:01:16,022 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:01:16,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1391.51ms. Allocated memory is still 83.9MB. Free memory was 57.2MB in the beginning and 50.1MB in the end (delta: 7.1MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2024-11-25 05:01:16,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.98ms. Allocated memory is still 83.9MB. Free memory was 50.1MB in the beginning and 47.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:01:16,024 INFO L158 Benchmark]: Boogie Preprocessor took 34.01ms. Allocated memory is still 83.9MB. Free memory was 47.4MB in the beginning and 45.6MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 05:01:16,024 INFO L158 Benchmark]: RCFGBuilder took 467.82ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 53.4MB in the end (delta: -7.8MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2024-11-25 05:01:16,026 INFO L158 Benchmark]: CodeCheck took 555.87ms. Allocated memory is still 83.9MB. Free memory was 53.0MB in the beginning and 35.3MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 05:01:16,026 INFO L158 Benchmark]: Witness Printer took 5.53ms. Allocated memory is still 83.9MB. Free memory was 35.3MB in the beginning and 35.3MB in the end (delta: 3.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:01:16,030 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, 17 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, 9 NumberOfCodeBlocks, 9 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of fgets at line 1566. 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] static int badStatic = 0; [L1581] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=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 0.28ms. Allocated memory is still 83.9MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1391.51ms. Allocated memory is still 83.9MB. Free memory was 57.2MB in the beginning and 50.1MB in the end (delta: 7.1MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.98ms. Allocated memory is still 83.9MB. Free memory was 50.1MB in the beginning and 47.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.01ms. Allocated memory is still 83.9MB. Free memory was 47.4MB in the beginning and 45.6MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 467.82ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 53.4MB in the end (delta: -7.8MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * CodeCheck took 555.87ms. Allocated memory is still 83.9MB. Free memory was 53.0MB in the beginning and 35.3MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.53ms. Allocated memory is still 83.9MB. Free memory was 35.3MB in the beginning and 35.3MB in the end (delta: 3.4kB). 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 05:01:16,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1f68347-9e1e-4a73-919b-3a18e4154be5/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