./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_16_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_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/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_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/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_f9d0a467-530a-43d8-bac0-e4c4c68b031d/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 20b9e0d114927c82dc23be4ddcdb4c99698220d6842fcc2a3f9e4234c3af6985 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:55:40,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:55:40,742 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 04:55:40,746 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 04:55:40,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 04:55:40,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:55:40,765 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:55:40,766 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:55:40,766 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:55:40,766 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:55:40,766 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:55:40,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:55:40,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:55:40,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:55:40,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:55:40,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:55:40,767 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:55:40,767 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 04:55:40,767 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:55:40,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:55:40,767 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:55:40,768 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:55:40,768 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:55:40,768 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:55:40,768 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:55:40,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:55:40,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:55:40,768 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:55:40,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:55:40,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:55:40,769 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 04:55:40,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 04:55:40,769 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_f9d0a467-530a-43d8-bac0-e4c4c68b031d/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 -> 20b9e0d114927c82dc23be4ddcdb4c99698220d6842fcc2a3f9e4234c3af6985 [2024-12-06 04:55:40,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:55:40,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:55:40,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:55:40,985 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:55:40,985 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:55:40,986 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_16_bad.i [2024-12-06 04:55:43,609 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/data/d937a1917/e1d1850095534c2f84a2cf191b66a5a5/FLAGc8e02b670 [2024-12-06 04:55:43,923 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:55:43,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_16_bad.i [2024-12-06 04:55:43,943 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/data/d937a1917/e1d1850095534c2f84a2cf191b66a5a5/FLAGc8e02b670 [2024-12-06 04:55:43,955 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/data/d937a1917/e1d1850095534c2f84a2cf191b66a5a5 [2024-12-06 04:55:43,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:55:43,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:55:43,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:55:43,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:55:43,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:55:43,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:55:43" (1/1) ... [2024-12-06 04:55:43,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e479701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:43, skipping insertion in model container [2024-12-06 04:55:43,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:55:43" (1/1) ... [2024-12-06 04:55:43,997 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:55:44,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:55:44,612 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:55:44,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:55:44,775 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:55:44,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:44 WrapperNode [2024-12-06 04:55:44,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:55:44,777 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:55:44,777 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:55:44,777 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:55:44,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:44" (1/1) ... [2024-12-06 04:55:44,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:44" (1/1) ... [2024-12-06 04:55:44,811 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 103 [2024-12-06 04:55:44,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:55:44,812 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:55:44,812 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:55:44,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:55:44,820 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:44" (1/1) ... [2024-12-06 04:55:44,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:44" (1/1) ... [2024-12-06 04:55:44,823 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:44" (1/1) ... [2024-12-06 04:55:44,823 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:44" (1/1) ... [2024-12-06 04:55:44,827 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:44" (1/1) ... [2024-12-06 04:55:44,828 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:44" (1/1) ... [2024-12-06 04:55:44,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:44" (1/1) ... [2024-12-06 04:55:44,833 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:44" (1/1) ... [2024-12-06 04:55:44,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:44" (1/1) ... [2024-12-06 04:55:44,836 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:55:44,837 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:55:44,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:55:44,837 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:55:44,838 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:44" (1/1) ... [2024-12-06 04:55:44,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:55:44,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:55:44,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:55:44,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:55:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 04:55:44,895 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 04:55:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:55:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:55:44,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:55:45,001 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:55:45,002 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:55:45,173 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-12-06 04:55:45,174 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:55:45,360 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:55:45,360 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-06 04:55:45,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:55:45 BoogieIcfgContainer [2024-12-06 04:55:45,361 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:55:45,361 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:55:45,361 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:55:45,371 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:55:45,371 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:55:45" (1/1) ... [2024-12-06 04:55:45,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:55:45,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:55:45,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2024-12-06 04:55:45,427 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-12-06 04:55:45,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 04:55:45,430 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:55:45,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:55:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:55:45,603 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:55:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:55:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:55:45,728 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:55:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:55:45,762 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 04:55:45,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:55:45 ImpRootNode [2024-12-06 04:55:45,784 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:55:45,784 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:55:45,784 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:55:45,785 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:55:45,785 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:55:45" (3/4) ... [2024-12-06 04:55:45,787 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 04:55:45,788 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:55:45,789 INFO L158 Benchmark]: Toolchain (without parser) took 1831.25ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 94.5MB in the end (delta: 18.8MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2024-12-06 04:55:45,789 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:55:45,790 INFO L158 Benchmark]: CACSL2BoogieTranslator took 817.27ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 111.3MB in the end (delta: 2.0MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2024-12-06 04:55:45,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.05ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 108.7MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:55:45,791 INFO L158 Benchmark]: Boogie Preprocessor took 24.35ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 107.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:55:45,791 INFO L158 Benchmark]: RCFGBuilder took 523.56ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 66.6MB in the end (delta: 40.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-12-06 04:55:45,791 INFO L158 Benchmark]: CodeCheck took 422.34ms. Allocated memory is still 142.6MB. Free memory was 66.6MB in the beginning and 94.5MB in the end (delta: -27.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:55:45,792 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 94.5MB in the end (delta: 9.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:55:45,794 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, 13 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 - UnprovableResult [Line: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1554. 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); [L1570] 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) [L1570] 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] [L1571] CALL CWE191_Integer_Underflow__int_rand_predec_16_bad() [L1550] int data; [L1551] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1560] --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 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 817.27ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 111.3MB in the end (delta: 2.0MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.05ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 108.7MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.35ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 107.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 523.56ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 66.6MB in the end (delta: 40.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * CodeCheck took 422.34ms. Allocated memory is still 142.6MB. Free memory was 66.6MB in the beginning and 94.5MB in the end (delta: -27.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 94.5MB in the end (delta: 9.0kB). 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 04:55:45,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/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_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/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_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/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_f9d0a467-530a-43d8-bac0-e4c4c68b031d/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 20b9e0d114927c82dc23be4ddcdb4c99698220d6842fcc2a3f9e4234c3af6985 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:55:47,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:55:47,827 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 04:55:47,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:55:47,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:55:47,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:55:47,853 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:55:47,853 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:55:47,853 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:55:47,853 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:55:47,853 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:55:47,854 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:55:47,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:55:47,854 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:55:47,854 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 04:55:47,854 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 04:55:47,854 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 04:55:47,854 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 04:55:47,854 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:55:47,854 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:55:47,854 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:55:47,855 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:55:47,855 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:55:47,855 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:55:47,855 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:55:47,855 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 04:55:47,855 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 04:55:47,855 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:55:47,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:55:47,855 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:55:47,856 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:55:47,856 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:55:47,856 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 04:55:47,856 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 04:55:47,856 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 04:55:47,856 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_f9d0a467-530a-43d8-bac0-e4c4c68b031d/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 -> 20b9e0d114927c82dc23be4ddcdb4c99698220d6842fcc2a3f9e4234c3af6985 [2024-12-06 04:55:48,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:55:48,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:55:48,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:55:48,086 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:55:48,087 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:55:48,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_16_bad.i [2024-12-06 04:55:50,757 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/data/5ee6a4a76/a8540c24d5954c05949007c9caba1546/FLAGbc696f0d1 [2024-12-06 04:55:51,055 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:55:51,055 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_16_bad.i [2024-12-06 04:55:51,074 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/data/5ee6a4a76/a8540c24d5954c05949007c9caba1546/FLAGbc696f0d1 [2024-12-06 04:55:51,311 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/data/5ee6a4a76/a8540c24d5954c05949007c9caba1546 [2024-12-06 04:55:51,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:55:51,314 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:55:51,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:55:51,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:55:51,320 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:55:51,321 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:55:51" (1/1) ... [2024-12-06 04:55:51,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9e0b70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:51, skipping insertion in model container [2024-12-06 04:55:51,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:55:51" (1/1) ... [2024-12-06 04:55:51,356 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:55:51,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:55:51,988 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:55:52,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:55:52,191 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:55:52,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:52 WrapperNode [2024-12-06 04:55:52,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:55:52,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:55:52,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:55:52,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:55:52,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:52" (1/1) ... [2024-12-06 04:55:52,217 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:52" (1/1) ... [2024-12-06 04:55:52,233 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2024-12-06 04:55:52,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:55:52,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:55:52,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:55:52,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:55:52,240 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:52" (1/1) ... [2024-12-06 04:55:52,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:52" (1/1) ... [2024-12-06 04:55:52,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:52" (1/1) ... [2024-12-06 04:55:52,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:52" (1/1) ... [2024-12-06 04:55:52,251 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:52" (1/1) ... [2024-12-06 04:55:52,252 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:52" (1/1) ... [2024-12-06 04:55:52,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:52" (1/1) ... [2024-12-06 04:55:52,256 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:52" (1/1) ... [2024-12-06 04:55:52,258 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:52" (1/1) ... [2024-12-06 04:55:52,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:55:52,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:55:52,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:55:52,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:55:52,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:55:52" (1/1) ... [2024-12-06 04:55:52,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:55:52,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:55:52,287 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:55:52,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:55:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 04:55:52,313 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 04:55:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:55:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:55:52,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:55:52,426 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:55:52,427 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:55:52,527 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-12-06 04:55:52,527 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:55:52,583 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:55:52,583 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-06 04:55:52,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:55:52 BoogieIcfgContainer [2024-12-06 04:55:52,583 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:55:52,584 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:55:52,584 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:55:52,594 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:55:52,594 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:55:52" (1/1) ... [2024-12-06 04:55:52,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:55:52,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:55:52,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2024-12-06 04:55:52,640 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-12-06 04:55:52,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 04:55:52,644 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:55:52,644 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:55:52,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:55:52,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:55:52,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 04:55:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:55:52,799 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:55:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:55:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:55:52,889 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:55:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:55:52,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-12-06 04:55:52,920 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 04:55:52,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:55:52 ImpRootNode [2024-12-06 04:55:52,939 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:55:52,940 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:55:52,940 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:55:52,940 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:55:52,941 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:55:52" (3/4) ... [2024-12-06 04:55:52,941 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 04:55:52,974 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 5. [2024-12-06 04:55:53,007 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 04:55:53,008 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 04:55:53,008 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:55:53,009 INFO L158 Benchmark]: Toolchain (without parser) took 1694.41ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 52.3MB in the end (delta: 13.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-12-06 04:55:53,009 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:55:53,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 876.49ms. Allocated memory is still 92.3MB. Free memory was 65.8MB in the beginning and 62.6MB in the end (delta: 3.3MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-12-06 04:55:53,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.94ms. Allocated memory is still 92.3MB. Free memory was 62.6MB in the beginning and 59.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:55:53,010 INFO L158 Benchmark]: Boogie Preprocessor took 25.50ms. Allocated memory is still 92.3MB. Free memory was 59.9MB in the beginning and 58.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:55:53,010 INFO L158 Benchmark]: RCFGBuilder took 323.71ms. Allocated memory is still 92.3MB. Free memory was 58.1MB in the beginning and 40.3MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:55:53,010 INFO L158 Benchmark]: CodeCheck took 355.17ms. Allocated memory is still 92.3MB. Free memory was 40.3MB in the beginning and 57.2MB in the end (delta: -16.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:55:53,011 INFO L158 Benchmark]: Witness Printer took 68.14ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 52.3MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:55:53,012 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, 13 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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: 1560]: 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); [L1570] 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) [L1570] 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] [L1571] CALL CWE191_Integer_Underflow__int_rand_predec_16_bad() [L1550] int data; [L1551] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1560] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 876.49ms. Allocated memory is still 92.3MB. Free memory was 65.8MB in the beginning and 62.6MB in the end (delta: 3.3MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.94ms. Allocated memory is still 92.3MB. Free memory was 62.6MB in the beginning and 59.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.50ms. Allocated memory is still 92.3MB. Free memory was 59.9MB in the beginning and 58.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 323.71ms. Allocated memory is still 92.3MB. Free memory was 58.1MB in the beginning and 40.3MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 355.17ms. Allocated memory is still 92.3MB. Free memory was 40.3MB in the beginning and 57.2MB in the end (delta: -16.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 68.14ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 52.3MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 04:55:53,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d0a467-530a-43d8-bac0-e4c4c68b031d/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)