./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_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_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b --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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 02:27:41,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:27:41,307 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 02:27:41,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 02:27:41,311 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 02:27:41,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:27:41,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:27:41,330 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:27:41,330 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:27:41,330 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:27:41,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:27:41,331 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:27:41,331 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 02:27:41,331 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:27:41,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:27:41,331 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:27:41,331 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:27:41,331 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 02:27:41,331 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 02:27:41,331 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:27:41,331 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:27:41,331 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:27:41,332 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:27:41,332 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:27:41,332 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:27:41,332 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:27:41,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:27:41,332 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:27:41,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:27:41,332 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:27:41,332 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 02:27:41,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 02:27:41,332 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_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b 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 -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2024-12-06 02:27:41,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:27:41,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:27:41,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:27:41,566 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:27:41,567 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:27:41,568 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2024-12-06 02:27:44,223 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/data/ce8528e9a/22c985e221a84435ab4b4c7100172707/FLAG5181e5f5d [2024-12-06 02:27:44,538 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:27:44,538 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2024-12-06 02:27:44,556 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/data/ce8528e9a/22c985e221a84435ab4b4c7100172707/FLAG5181e5f5d [2024-12-06 02:27:44,784 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/data/ce8528e9a/22c985e221a84435ab4b4c7100172707 [2024-12-06 02:27:44,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:27:44,787 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:27:44,788 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:27:44,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:27:44,792 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:27:44,792 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:27:44" (1/1) ... [2024-12-06 02:27:44,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ca7ee39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:44, skipping insertion in model container [2024-12-06 02:27:44,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:27:44" (1/1) ... [2024-12-06 02:27:44,826 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:27:45,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:27:45,464 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:27:45,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:27:45,641 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:27:45,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:45 WrapperNode [2024-12-06 02:27:45,642 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:27:45,643 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:27:45,643 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:27:45,643 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:27:45,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:45" (1/1) ... [2024-12-06 02:27:45,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:45" (1/1) ... [2024-12-06 02:27:45,682 INFO L138 Inliner]: procedures = 497, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 108 [2024-12-06 02:27:45,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:27:45,683 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:27:45,683 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:27:45,683 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:27:45,690 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:45" (1/1) ... [2024-12-06 02:27:45,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:45" (1/1) ... [2024-12-06 02:27:45,693 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:45" (1/1) ... [2024-12-06 02:27:45,693 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:45" (1/1) ... [2024-12-06 02:27:45,698 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:45" (1/1) ... [2024-12-06 02:27:45,699 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:45" (1/1) ... [2024-12-06 02:27:45,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:45" (1/1) ... [2024-12-06 02:27:45,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:45" (1/1) ... [2024-12-06 02:27:45,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:45" (1/1) ... [2024-12-06 02:27:45,704 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:27:45,705 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:27:45,705 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:27:45,705 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:27:45,706 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:45" (1/1) ... [2024-12-06 02:27:45,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:27:45,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:27:45,735 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:27:45,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:27:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 02:27:45,762 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 02:27:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 02:27:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 02:27:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:27:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:27:45,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:27:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 02:27:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 02:27:45,869 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:27:45,870 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:27:46,048 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2024-12-06 02:27:46,048 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:27:46,210 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:27:46,210 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 02:27:46,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:27:46 BoogieIcfgContainer [2024-12-06 02:27:46,211 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:27:46,211 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:27:46,212 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:27:46,221 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:27:46,221 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:27:46" (1/1) ... [2024-12-06 02:27:46,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:27:46,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:27:46,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-12-06 02:27:46,276 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-12-06 02:27:46,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 02:27:46,280 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:27:46,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:27:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:27:46,571 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 02:27:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:27:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:27:46,729 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 02:27:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:27:46,772 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 02:27:46,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 02:27:46 ImpRootNode [2024-12-06 02:27:46,796 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 02:27:46,797 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 02:27:46,797 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 02:27:46,797 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 02:27:46,798 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:27:46" (3/4) ... [2024-12-06 02:27:46,800 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 02:27:46,801 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 02:27:46,802 INFO L158 Benchmark]: Toolchain (without parser) took 2014.36ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 39.1MB in the end (delta: 50.2MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2024-12-06 02:27:46,802 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:27:46,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 853.90ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 80.8MB in the end (delta: 8.4MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2024-12-06 02:27:46,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.93ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 78.1MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:27:46,804 INFO L158 Benchmark]: Boogie Preprocessor took 20.71ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 76.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:27:46,804 INFO L158 Benchmark]: RCFGBuilder took 506.22ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 38.3MB in the end (delta: 38.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-12-06 02:27:46,804 INFO L158 Benchmark]: CodeCheck took 584.81ms. Allocated memory is still 117.4MB. Free memory was 38.3MB in the beginning and 39.2MB in the end (delta: -856.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:27:46,805 INFO L158 Benchmark]: Witness Printer took 4.24ms. Allocated memory is still 117.4MB. Free memory was 39.2MB in the beginning and 39.1MB in the end (delta: 13.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:27:46,807 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, 12 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, 6 NumberOfCodeBlocks, 6 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: 1562]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr 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); [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] *dataPtr1 = data [L1560] EXPR \read(*dataPtr2) [L1560] int data = *dataPtr2; [L1562] --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 0.28ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 853.90ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 80.8MB in the end (delta: 8.4MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.93ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 78.1MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.71ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 76.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 506.22ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 38.3MB in the end (delta: 38.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * CodeCheck took 584.81ms. Allocated memory is still 117.4MB. Free memory was 38.3MB in the beginning and 39.2MB in the end (delta: -856.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.24ms. Allocated memory is still 117.4MB. Free memory was 39.2MB in the beginning and 39.1MB in the end (delta: 13.7kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 02:27:46,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/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_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b --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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 02:27:48,746 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:27:48,825 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 02:27:48,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:27:48,850 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:27:48,850 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:27:48,850 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:27:48,850 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:27:48,851 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:27:48,851 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:27:48,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:27:48,851 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:27:48,851 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:27:48,851 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:27:48,851 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 02:27:48,851 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 02:27:48,851 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 02:27:48,852 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 02:27:48,852 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 02:27:48,852 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:27:48,852 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:27:48,852 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:27:48,852 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:27:48,852 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:27:48,852 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:27:48,852 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 02:27:48,852 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 02:27:48,853 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:27:48,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:27:48,853 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:27:48,853 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:27:48,853 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:27:48,853 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 02:27:48,853 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 02:27:48,853 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 02:27:48,853 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_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b 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 -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2024-12-06 02:27:49,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:27:49,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:27:49,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:27:49,085 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:27:49,085 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:27:49,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2024-12-06 02:27:51,709 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/data/19e6a0d29/c068baa0ccee450bbcd974139221d682/FLAGc2bd31759 [2024-12-06 02:27:51,995 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:27:51,995 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2024-12-06 02:27:52,014 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/data/19e6a0d29/c068baa0ccee450bbcd974139221d682/FLAGc2bd31759 [2024-12-06 02:27:52,286 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/data/19e6a0d29/c068baa0ccee450bbcd974139221d682 [2024-12-06 02:27:52,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:27:52,289 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:27:52,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:27:52,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:27:52,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:27:52,293 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:27:52" (1/1) ... [2024-12-06 02:27:52,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f05867c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:52, skipping insertion in model container [2024-12-06 02:27:52,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:27:52" (1/1) ... [2024-12-06 02:27:52,330 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:27:52,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:27:53,005 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:27:53,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:27:53,219 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:27:53,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:53 WrapperNode [2024-12-06 02:27:53,219 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:27:53,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:27:53,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:27:53,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:27:53,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:53" (1/1) ... [2024-12-06 02:27:53,245 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:53" (1/1) ... [2024-12-06 02:27:53,264 INFO L138 Inliner]: procedures = 502, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-12-06 02:27:53,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:27:53,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:27:53,265 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:27:53,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:27:53,272 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:53" (1/1) ... [2024-12-06 02:27:53,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:53" (1/1) ... [2024-12-06 02:27:53,275 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:53" (1/1) ... [2024-12-06 02:27:53,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:53" (1/1) ... [2024-12-06 02:27:53,284 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:53" (1/1) ... [2024-12-06 02:27:53,285 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:53" (1/1) ... [2024-12-06 02:27:53,287 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:53" (1/1) ... [2024-12-06 02:27:53,289 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:53" (1/1) ... [2024-12-06 02:27:53,290 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:53" (1/1) ... [2024-12-06 02:27:53,293 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:27:53,294 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:27:53,294 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:27:53,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:27:53,295 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:27:53" (1/1) ... [2024-12-06 02:27:53,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:27:53,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:27:53,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:27:53,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:27:53,350 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 02:27:53,350 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 02:27:53,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 02:27:53,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:27:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:27:53,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:27:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-06 02:27:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 02:27:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-06 02:27:53,473 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:27:53,475 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:27:53,597 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-12-06 02:27:53,597 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:27:53,653 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:27:53,654 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 02:27:53,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:27:53 BoogieIcfgContainer [2024-12-06 02:27:53,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:27:53,655 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:27:53,655 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:27:53,663 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:27:53,664 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:27:53" (1/1) ... [2024-12-06 02:27:53,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:27:53,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:27:53,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-12-06 02:27:53,705 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-12-06 02:27:53,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 02:27:53,707 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:27:53,708 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 02:27:53,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 02:27:53,709 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 02:27:53,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 02:27:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:27:53,869 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 02:27:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:27:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:27:54,025 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 02:27:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:27:54,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 02:27:54,091 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 02:27:54,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 02:27:54 ImpRootNode [2024-12-06 02:27:54,115 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 02:27:54,116 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 02:27:54,116 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 02:27:54,116 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 02:27:54,117 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:27:53" (3/4) ... [2024-12-06 02:27:54,117 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 02:27:54,153 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 5. [2024-12-06 02:27:54,192 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 02:27:54,192 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 02:27:54,193 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 02:27:54,193 INFO L158 Benchmark]: Toolchain (without parser) took 1904.73ms. Allocated memory is still 92.3MB. Free memory was 66.5MB in the beginning and 48.2MB in the end (delta: 18.3MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2024-12-06 02:27:54,194 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:27:54,194 INFO L158 Benchmark]: CACSL2BoogieTranslator took 930.13ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 62.8MB in the end (delta: 3.5MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2024-12-06 02:27:54,194 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.10ms. Allocated memory is still 92.3MB. Free memory was 62.8MB in the beginning and 60.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:27:54,195 INFO L158 Benchmark]: Boogie Preprocessor took 28.72ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 58.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:27:54,195 INFO L158 Benchmark]: RCFGBuilder took 359.92ms. Allocated memory is still 92.3MB. Free memory was 58.2MB in the beginning and 39.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 02:27:54,195 INFO L158 Benchmark]: CodeCheck took 460.62ms. Allocated memory is still 92.3MB. Free memory was 39.7MB in the beginning and 52.9MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:27:54,195 INFO L158 Benchmark]: Witness Printer took 76.79ms. Allocated memory is still 92.3MB. Free memory was 52.9MB in the beginning and 48.2MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:27:54,197 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, 12 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, 6 NumberOfCodeBlocks, 6 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 - CounterExampleResult [Line: 1562]: integer overflow possible integer overflow possible We found a 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); [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] *dataPtr1 = data [L1560] EXPR \read(*dataPtr2) [L1560] int data = *dataPtr2; [L1562] --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 0.26ms. Allocated memory is still 83.9MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 930.13ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 62.8MB in the end (delta: 3.5MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.10ms. Allocated memory is still 92.3MB. Free memory was 62.8MB in the beginning and 60.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.72ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 58.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 359.92ms. Allocated memory is still 92.3MB. Free memory was 58.2MB in the beginning and 39.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 460.62ms. Allocated memory is still 92.3MB. Free memory was 39.7MB in the beginning and 52.9MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 76.79ms. Allocated memory is still 92.3MB. Free memory was 52.9MB in the beginning and 48.2MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 02:27:54,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_314392a5-382f-4e21-bb07-35b64b9781b0/bin/ukojak-verify-CZk0znPC7b/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)