./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 a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/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_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk --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 0.2.5-dev-a016563 [2024-11-08 23:02:10,712 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:02:10,833 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 23:02:10,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:02:10,845 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:02:10,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:02:10,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:02:10,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:02:10,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:02:10,895 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:02:10,897 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:02:10,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:02:10,898 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:02:10,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:02:10,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:02:10,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:02:10,899 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:02:10,900 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:02:10,900 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:02:10,905 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:02:10,905 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:02:10,906 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:02:10,907 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:02:10,908 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:02:10,908 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:02:10,909 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:02:10,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:02:10,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:02:10,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:02:10,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:02:10,912 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:02:10,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:02:10,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20b9e0d114927c82dc23be4ddcdb4c99698220d6842fcc2a3f9e4234c3af6985 [2024-11-08 23:02:11,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:02:11,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:02:11,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:02:11,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:02:11,259 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:02:11,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_16_bad.i Unable to find full path for "g++" [2024-11-08 23:02:13,686 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:02:14,066 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:02:14,070 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_16_bad.i [2024-11-08 23:02:14,115 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/data/dceb64e21/e1e7f784dbbb408b84ed10611e3d165a/FLAGe28f5db4d [2024-11-08 23:02:14,135 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/data/dceb64e21/e1e7f784dbbb408b84ed10611e3d165a [2024-11-08 23:02:14,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:02:14,140 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:02:14,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:02:14,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:02:14,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:02:14,150 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:02:14" (1/1) ... [2024-11-08 23:02:14,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f3a618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:14, skipping insertion in model container [2024-11-08 23:02:14,151 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:02:14" (1/1) ... [2024-11-08 23:02:14,226 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:02:15,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:02:15,508 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:02:15,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:02:15,911 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:02:15,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:15 WrapperNode [2024-11-08 23:02:15,913 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:02:15,914 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:02:15,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:02:15,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:02:15,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:15" (1/1) ... [2024-11-08 23:02:15,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:15" (1/1) ... [2024-11-08 23:02:16,016 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2024-11-08 23:02:16,017 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:02:16,017 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:02:16,018 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:02:16,018 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:02:16,030 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:15" (1/1) ... [2024-11-08 23:02:16,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:15" (1/1) ... [2024-11-08 23:02:16,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:15" (1/1) ... [2024-11-08 23:02:16,034 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:15" (1/1) ... [2024-11-08 23:02:16,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:15" (1/1) ... [2024-11-08 23:02:16,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:15" (1/1) ... [2024-11-08 23:02:16,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:15" (1/1) ... [2024-11-08 23:02:16,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:15" (1/1) ... [2024-11-08 23:02:16,052 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:02:16,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:02:16,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:02:16,057 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:02:16,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:15" (1/1) ... [2024-11-08 23:02:16,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:02:16,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:02:16,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:02:16,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:02:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:02:16,155 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:02:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:02:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:02:16,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:02:16,354 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:02:16,356 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:02:16,631 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-11-08 23:02:16,631 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:02:16,934 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:02:16,935 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 23:02:16,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:02:16 BoogieIcfgContainer [2024-11-08 23:02:16,935 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:02:16,936 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:02:16,937 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:02:16,949 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:02:16,950 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:02:16" (1/1) ... [2024-11-08 23:02:16,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:02:17,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:02:17,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2024-11-08 23:02:17,034 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-08 23:02:17,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:02:17,054 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:02:17,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:02:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:02:17,439 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:02:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:02:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:02:17,721 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:02:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:02:17,787 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:02:17,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:02:17 ImpRootNode [2024-11-08 23:02:17,829 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:02:17,831 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:02:17,832 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:02:17,833 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:02:17,834 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:02:16" (3/4) ... [2024-11-08 23:02:17,838 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:02:17,839 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:02:17,842 INFO L158 Benchmark]: Toolchain (without parser) took 3701.27ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 107.5MB in the beginning and 121.5MB in the end (delta: -14.0MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2024-11-08 23:02:17,843 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 88.1MB. Free memory is still 38.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:02:17,844 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1771.17ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 107.0MB in the beginning and 125.7MB in the end (delta: -18.7MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2024-11-08 23:02:17,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.00ms. Allocated memory is still 188.7MB. Free memory was 125.7MB in the beginning and 122.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:02:17,847 INFO L158 Benchmark]: Boogie Preprocessor took 38.09ms. Allocated memory is still 188.7MB. Free memory was 122.6MB in the beginning and 121.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:02:17,848 INFO L158 Benchmark]: RCFGBuilder took 879.31ms. Allocated memory is still 188.7MB. Free memory was 121.5MB in the beginning and 78.5MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-08 23:02:17,850 INFO L158 Benchmark]: CodeCheck took 892.96ms. Allocated memory is still 188.7MB. Free memory was 77.5MB in the beginning and 121.5MB in the end (delta: -44.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:02:17,850 INFO L158 Benchmark]: Witness Printer took 9.19ms. Allocated memory is still 188.7MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:02:17,855 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 7 NumberOfCodeBlocks, 7 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 - UnprovableResult [Line: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1570, 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 [L1552] COND TRUE 1 [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)) [L1557] COND TRUE 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=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 0.34ms. Allocated memory is still 88.1MB. Free memory is still 38.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1771.17ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 107.0MB in the beginning and 125.7MB in the end (delta: -18.7MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.00ms. Allocated memory is still 188.7MB. Free memory was 125.7MB in the beginning and 122.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.09ms. Allocated memory is still 188.7MB. Free memory was 122.6MB in the beginning and 121.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 879.31ms. Allocated memory is still 188.7MB. Free memory was 121.5MB in the beginning and 78.5MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * CodeCheck took 892.96ms. Allocated memory is still 188.7MB. Free memory was 77.5MB in the beginning and 121.5MB in the end (delta: -44.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.19ms. Allocated memory is still 188.7MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:02:17,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/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_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk --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 0.2.5-dev-a016563 [2024-11-08 23:02:20,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:02:20,674 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 23:02:20,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:02:20,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:02:20,744 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:02:20,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:02:20,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:02:20,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:02:20,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:02:20,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:02:20,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:02:20,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:02:20,753 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:02:20,754 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:02:20,755 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:02:20,755 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:02:20,755 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:02:20,756 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:02:20,756 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:02:20,756 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:02:20,759 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:02:20,759 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:02:20,760 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:02:20,760 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:02:20,761 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:02:20,761 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:02:20,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:02:20,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:02:20,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:02:20,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:02:20,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:02:20,764 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:02:20,765 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:02:20,766 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:02:20,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20b9e0d114927c82dc23be4ddcdb4c99698220d6842fcc2a3f9e4234c3af6985 [2024-11-08 23:02:21,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:02:21,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:02:21,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:02:21,289 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:02:21,289 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:02:21,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_16_bad.i Unable to find full path for "g++" [2024-11-08 23:02:23,686 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:02:24,233 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:02:24,234 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_16_bad.i [2024-11-08 23:02:24,282 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/data/d88c9162e/3ad5011a2dbb4ce4ad6f1ac8565678d5/FLAGdb04c9dba [2024-11-08 23:02:24,306 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/data/d88c9162e/3ad5011a2dbb4ce4ad6f1ac8565678d5 [2024-11-08 23:02:24,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:02:24,313 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:02:24,314 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:02:24,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:02:24,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:02:24,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:02:24" (1/1) ... [2024-11-08 23:02:24,326 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a4f8637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:24, skipping insertion in model container [2024-11-08 23:02:24,329 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:02:24" (1/1) ... [2024-11-08 23:02:24,417 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:02:25,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:02:25,845 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:02:26,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:02:26,243 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:02:26,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:26 WrapperNode [2024-11-08 23:02:26,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:02:26,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:02:26,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:02:26,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:02:26,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:26" (1/1) ... [2024-11-08 23:02:26,292 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:26" (1/1) ... [2024-11-08 23:02:26,320 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2024-11-08 23:02:26,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:02:26,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:02:26,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:02:26,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:02:26,335 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:26" (1/1) ... [2024-11-08 23:02:26,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:26" (1/1) ... [2024-11-08 23:02:26,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:26" (1/1) ... [2024-11-08 23:02:26,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:26" (1/1) ... [2024-11-08 23:02:26,363 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:26" (1/1) ... [2024-11-08 23:02:26,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:26" (1/1) ... [2024-11-08 23:02:26,377 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:26" (1/1) ... [2024-11-08 23:02:26,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:26" (1/1) ... [2024-11-08 23:02:26,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:02:26,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:02:26,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:02:26,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:02:26,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:02:26" (1/1) ... [2024-11-08 23:02:26,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:02:26,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:02:26,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:02:26,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:02:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:02:26,503 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:02:26,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:02:26,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:02:26,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:02:26,699 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:02:26,701 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:02:26,896 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-08 23:02:26,896 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:02:27,042 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:02:27,043 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 23:02:27,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:02:27 BoogieIcfgContainer [2024-11-08 23:02:27,044 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:02:27,045 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:02:27,046 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:02:27,059 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:02:27,060 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:02:27" (1/1) ... [2024-11-08 23:02:27,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:02:27,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:02:27,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2024-11-08 23:02:27,158 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-08 23:02:27,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:02:27,164 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:02:27,164 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:02:27,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:02:27,170 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:02:27,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:02:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:02:27,400 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:02:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:02:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:02:27,588 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:02:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:02:27,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 23:02:27,647 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:02:27,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:02:27 ImpRootNode [2024-11-08 23:02:27,694 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:02:27,695 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:02:27,698 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:02:27,698 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:02:27,699 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:02:27" (3/4) ... [2024-11-08 23:02:27,702 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:02:27,704 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:02:27,705 INFO L158 Benchmark]: Toolchain (without parser) took 3392.46ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 41.7MB in the beginning and 44.8MB in the end (delta: -3.1MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2024-11-08 23:02:27,706 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 69.2MB. Free memory was 44.9MB in the beginning and 44.8MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:02:27,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1929.98ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 41.6MB in the beginning and 58.5MB in the end (delta: -16.9MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2024-11-08 23:02:27,709 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.87ms. Allocated memory is still 90.2MB. Free memory was 58.5MB in the beginning and 55.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 23:02:27,710 INFO L158 Benchmark]: Boogie Preprocessor took 66.17ms. Allocated memory is still 90.2MB. Free memory was 55.6MB in the beginning and 53.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:02:27,712 INFO L158 Benchmark]: RCFGBuilder took 656.04ms. Allocated memory is still 90.2MB. Free memory was 53.5MB in the beginning and 59.8MB in the end (delta: -6.3MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-11-08 23:02:27,713 INFO L158 Benchmark]: CodeCheck took 649.13ms. Allocated memory is still 90.2MB. Free memory was 59.8MB in the beginning and 45.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 23:02:27,714 INFO L158 Benchmark]: Witness Printer took 8.98ms. Allocated memory is still 90.2MB. Free memory was 45.3MB in the beginning and 44.8MB in the end (delta: 521.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:02:27,721 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 7 NumberOfCodeBlocks, 7 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 - UnprovableResult [Line: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1570. 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 [L1552] COND TRUE 1 [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)) [L1557] COND TRUE 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=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 0.38ms. Allocated memory is still 69.2MB. Free memory was 44.9MB in the beginning and 44.8MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1929.98ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 41.6MB in the beginning and 58.5MB in the end (delta: -16.9MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.87ms. Allocated memory is still 90.2MB. Free memory was 58.5MB in the beginning and 55.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.17ms. Allocated memory is still 90.2MB. Free memory was 55.6MB in the beginning and 53.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 656.04ms. Allocated memory is still 90.2MB. Free memory was 53.5MB in the beginning and 59.8MB in the end (delta: -6.3MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * CodeCheck took 649.13ms. Allocated memory is still 90.2MB. Free memory was 59.8MB in the beginning and 45.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 8.98ms. Allocated memory is still 90.2MB. Free memory was 45.3MB in the beginning and 44.8MB in the end (delta: 521.0kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:02:27,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc48a89f-d74a-4fbf-b864-e501da3d679c/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample