./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_10_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5c06bc01125067b5395e96a559359379a185a2b06e09ddefee7b667ea34383c9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:02:21,287 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:02:21,388 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 23:02:21,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:02:21,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 23:02:21,428 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:02:21,429 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:02:21,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 23:02:21,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:02:21,430 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:02:21,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:02:21,430 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:02:21,430 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:02:21,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:02:21,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:02:21,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:02:21,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:02:21,431 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:02:21,431 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:02:21,431 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:02:21,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:02:21,432 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:02:21,432 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 23:02:21,432 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 23:02:21,432 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 23:02:21,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:02:21,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:02:21,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:02:21,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:02:21,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:02:21,433 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 23:02:21,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:02:21,433 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_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c06bc01125067b5395e96a559359379a185a2b06e09ddefee7b667ea34383c9 [2024-11-13 23:02:21,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:02:21,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:02:21,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:02:21,763 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:02:21,763 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:02:21,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_10_bad.i Unable to find full path for "g++" [2024-11-13 23:02:23,721 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:02:24,141 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:02:24,142 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_10_bad.i [2024-11-13 23:02:24,186 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/data/a7d10ef81/3788fe6f4f8f4a78bed61114fdac06d6/FLAG02afd8449 [2024-11-13 23:02:24,211 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/data/a7d10ef81/3788fe6f4f8f4a78bed61114fdac06d6 [2024-11-13 23:02:24,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:02:24,218 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:02:24,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:02:24,221 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:02:24,226 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:02:24,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:02:24" (1/1) ... [2024-11-13 23:02:24,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ca26bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:24, skipping insertion in model container [2024-11-13 23:02:24,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:02:24" (1/1) ... [2024-11-13 23:02:24,313 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:02:25,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:02:25,550 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:02:25,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:02:25,840 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:02:25,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:25 WrapperNode [2024-11-13 23:02:25,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:02:25,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:02:25,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:02:25,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:02:25,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:25" (1/1) ... [2024-11-13 23:02:25,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:25" (1/1) ... [2024-11-13 23:02:25,919 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-11-13 23:02:25,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:02:25,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:02:25,922 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:02:25,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:02:25,931 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:25" (1/1) ... [2024-11-13 23:02:25,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:25" (1/1) ... [2024-11-13 23:02:25,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:25" (1/1) ... [2024-11-13 23:02:25,939 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:25" (1/1) ... [2024-11-13 23:02:25,952 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:25" (1/1) ... [2024-11-13 23:02:25,954 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:25" (1/1) ... [2024-11-13 23:02:25,959 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:25" (1/1) ... [2024-11-13 23:02:25,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:25" (1/1) ... [2024-11-13 23:02:25,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:02:25,967 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:02:25,967 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:02:25,967 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:02:25,968 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:25" (1/1) ... [2024-11-13 23:02:25,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:02:25,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 23:02:26,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 23:02:26,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 23:02:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 23:02:26,038 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 23:02:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:02:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:02:26,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:02:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:02:26,174 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:02:26,176 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:02:26,303 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-13 23:02:26,303 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:02:26,343 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:02:26,344 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 23:02:26,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:02:26 BoogieIcfgContainer [2024-11-13 23:02:26,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:02:26,345 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 23:02:26,345 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 23:02:26,363 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 23:02:26,363 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:02:26" (1/1) ... [2024-11-13 23:02:26,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:02:26,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:02:26,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-11-13 23:02:26,444 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-13 23:02:26,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:02:26,450 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:02:26,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:02:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:02:26,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:02:26,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:02:26,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 22 transitions. [2024-11-13 23:02:26,786 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-11-13 23:02:26,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 23:02:26,787 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:02:26,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:02:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:02:26,856 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:02:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:02:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:02:26,992 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:02:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:02:27,043 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 23:02:27,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:02:27 ImpRootNode [2024-11-13 23:02:27,091 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 23:02:27,093 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:02:27,093 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:02:27,093 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:02:27,094 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:02:26" (3/4) ... [2024-11-13 23:02:27,097 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:02:27,098 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:02:27,102 INFO L158 Benchmark]: Toolchain (without parser) took 2880.74ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 33.7MB in the end (delta: 55.4MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2024-11-13 23:02:27,102 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:02:27,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1621.78ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 79.1MB in the end (delta: 9.8MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2024-11-13 23:02:27,103 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.56ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 76.3MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:02:27,107 INFO L158 Benchmark]: Boogie Preprocessor took 44.69ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 75.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:02:27,108 INFO L158 Benchmark]: RCFGBuilder took 377.73ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 61.3MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:02:27,108 INFO L158 Benchmark]: CodeCheck took 747.05ms. Allocated memory is still 117.4MB. Free memory was 61.3MB in the beginning and 34.3MB in the end (delta: 27.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 23:02:27,108 INFO L158 Benchmark]: Witness Printer took 5.31ms. Allocated memory is still 117.4MB. Free memory was 34.3MB in the beginning and 33.7MB in the end (delta: 534.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:02:27,110 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 15 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 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, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1578, overapproximation of fgets at line 1556. 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); [L1578] 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) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_postdec_10_bad() [L1550] int data; [L1551] data = 0 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] [L1552] COND TRUE \read(globalTrue) [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1566] COND TRUE \read(globalTrue) [L1569] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1621.78ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 79.1MB in the end (delta: 9.8MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.56ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 76.3MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.69ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 75.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 377.73ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 61.3MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 747.05ms. Allocated memory is still 117.4MB. Free memory was 61.3MB in the beginning and 34.3MB in the end (delta: 27.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 5.31ms. Allocated memory is still 117.4MB. Free memory was 34.3MB in the beginning and 33.7MB in the end (delta: 534.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 23:02:27,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5c06bc01125067b5395e96a559359379a185a2b06e09ddefee7b667ea34383c9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:02:30,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:02:30,258 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 23:02:30,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:02:30,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:02:30,290 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 23:02:30,291 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:02:30,291 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:02:30,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:02:30,291 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:02:30,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:02:30,292 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:02:30,292 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:02:30,292 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:02:30,292 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:02:30,292 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:02:30,292 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:02:30,293 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:02:30,293 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:02:30,293 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:02:30,293 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:02:30,293 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:02:30,293 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 23:02:30,294 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 23:02:30,294 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 23:02:30,294 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:02:30,294 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 23:02:30,294 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:02:30,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:02:30,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:02:30,295 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:02:30,295 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:02:30,295 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:02:30,295 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:02:30,295 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 23:02:30,295 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_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c06bc01125067b5395e96a559359379a185a2b06e09ddefee7b667ea34383c9 [2024-11-13 23:02:30,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:02:30,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:02:30,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:02:30,630 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:02:30,630 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:02:30,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_10_bad.i Unable to find full path for "g++" [2024-11-13 23:02:32,689 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:02:33,154 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:02:33,158 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_10_bad.i [2024-11-13 23:02:33,202 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/data/0a4edc90b/33a1802843764c63874a8e6485322d35/FLAG8a551d07d [2024-11-13 23:02:33,227 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/data/0a4edc90b/33a1802843764c63874a8e6485322d35 [2024-11-13 23:02:33,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:02:33,232 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:02:33,235 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:02:33,235 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:02:33,241 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:02:33,242 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:02:33" (1/1) ... [2024-11-13 23:02:33,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2caa3dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:33, skipping insertion in model container [2024-11-13 23:02:33,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:02:33" (1/1) ... [2024-11-13 23:02:33,314 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:02:34,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:02:34,641 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:02:34,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:02:34,973 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:02:34,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:34 WrapperNode [2024-11-13 23:02:34,974 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:02:34,975 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:02:34,975 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:02:34,976 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:02:34,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:34" (1/1) ... [2024-11-13 23:02:35,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:34" (1/1) ... [2024-11-13 23:02:35,027 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-11-13 23:02:35,028 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:02:35,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:02:35,029 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:02:35,029 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:02:35,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:34" (1/1) ... [2024-11-13 23:02:35,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:34" (1/1) ... [2024-11-13 23:02:35,040 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:34" (1/1) ... [2024-11-13 23:02:35,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:34" (1/1) ... [2024-11-13 23:02:35,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:34" (1/1) ... [2024-11-13 23:02:35,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:34" (1/1) ... [2024-11-13 23:02:35,054 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:34" (1/1) ... [2024-11-13 23:02:35,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:34" (1/1) ... [2024-11-13 23:02:35,059 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:02:35,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:02:35,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:02:35,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:02:35,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:02:34" (1/1) ... [2024-11-13 23:02:35,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:02:35,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 23:02:35,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 23:02:35,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 23:02:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 23:02:35,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 23:02:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:02:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:02:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:02:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:02:35,336 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:02:35,338 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:02:35,551 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-13 23:02:35,551 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:02:35,604 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:02:35,604 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 23:02:35,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:02:35 BoogieIcfgContainer [2024-11-13 23:02:35,605 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:02:35,606 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 23:02:35,606 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 23:02:35,616 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 23:02:35,616 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:02:35" (1/1) ... [2024-11-13 23:02:35,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:02:35,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:02:35,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-11-13 23:02:35,685 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-13 23:02:35,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:02:35,690 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:02:35,691 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:02:35,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:02:35,698 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:02:35,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 23:02:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:02:35,865 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 23:02:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:02:35,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 23:02:35,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:02:35,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:02:35,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 23:02:36,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:02:36,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2024-11-13 23:02:36,011 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-11-13 23:02:36,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 23:02:36,012 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:02:36,013 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:02:36,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:02:36,016 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:02:36,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-13 23:02:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:02:36,219 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:02:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:02:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:02:36,368 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:02:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:02:36,409 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2024-11-13 23:02:36,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-13 23:02:36,413 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 23:02:36,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:02:36 ImpRootNode [2024-11-13 23:02:36,446 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 23:02:36,447 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:02:36,447 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:02:36,447 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:02:36,449 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:02:35" (3/4) ... [2024-11-13 23:02:36,453 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:02:36,454 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:02:36,458 INFO L158 Benchmark]: Toolchain (without parser) took 3223.55ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 72.1MB in the end (delta: 19.9MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2024-11-13 23:02:36,459 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:02:36,459 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1739.80ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 81.6MB in the end (delta: 10.2MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. [2024-11-13 23:02:36,463 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.70ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 78.8MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:02:36,463 INFO L158 Benchmark]: Boogie Preprocessor took 30.52ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:02:36,463 INFO L158 Benchmark]: RCFGBuilder took 545.05ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 60.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:02:36,464 INFO L158 Benchmark]: CodeCheck took 840.58ms. Allocated memory is still 117.4MB. Free memory was 60.7MB in the beginning and 72.7MB in the end (delta: -11.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:02:36,464 INFO L158 Benchmark]: Witness Printer took 7.67ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.1MB in the end (delta: 602.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:02:36,469 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 11 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 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, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1578, overapproximation of fgets at line 1556. 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); [L1578] 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) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_postdec_10_bad() [L1550] int data; [L1551] data = 0 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] [L1552] COND TRUE \read(globalTrue) [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1566] COND TRUE \read(globalTrue) [L1569] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1739.80ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 81.6MB in the end (delta: 10.2MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.70ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 78.8MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.52ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 545.05ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 60.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 840.58ms. Allocated memory is still 117.4MB. Free memory was 60.7MB in the beginning and 72.7MB in the end (delta: -11.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.67ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.1MB in the end (delta: 602.5kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 23:02:36,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa48d33b-7c2b-4258-96a5-0df3cdcea35d/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample