./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_02_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_02_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC --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 64cd393683af38b1e269cbf5df7e3124cf504d7be3c9164b51306a9786286716 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:08:11,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:08:12,044 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:08:12,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:08:12,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:08:12,079 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:08:12,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:08:12,080 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:08:12,081 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:08:12,082 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:08:12,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:08:12,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:08:12,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:08:12,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:08:12,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:08:12,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:08:12,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:08:12,086 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:08:12,086 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:08:12,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:08:12,087 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:08:12,094 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:08:12,095 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:08:12,095 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:08:12,096 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:08:12,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:08:12,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:08:12,098 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:08:12,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:08:12,098 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:08:12,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:08:12,100 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:08:12,100 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_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64cd393683af38b1e269cbf5df7e3124cf504d7be3c9164b51306a9786286716 [2023-11-23 20:08:12,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:08:12,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:08:12,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:08:12,422 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:08:12,422 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:08:12,424 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_02_bad.i [2023-11-23 20:08:15,671 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:08:16,095 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:08:16,096 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_02_bad.i [2023-11-23 20:08:16,133 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/data/fb181e66d/4ae99426cff340b497d54f3afa53adb2/FLAGf5d032ee9 [2023-11-23 20:08:16,152 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/data/fb181e66d/4ae99426cff340b497d54f3afa53adb2 [2023-11-23 20:08:16,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:08:16,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:08:16,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:08:16,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:08:16,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:08:16,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:16" (1/1) ... [2023-11-23 20:08:16,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@616db951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:16, skipping insertion in model container [2023-11-23 20:08:16,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:16" (1/1) ... [2023-11-23 20:08:16,273 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:08:16,729 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:08:17,355 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:08:17,373 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:08:17,409 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:08:17,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:08:17,655 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:17,656 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:17,656 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:17,656 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:17,657 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:17,665 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:08:17,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:17 WrapperNode [2023-11-23 20:08:17,666 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:08:17,669 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:08:17,669 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:08:17,670 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:08:17,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:17" (1/1) ... [2023-11-23 20:08:17,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:17" (1/1) ... [2023-11-23 20:08:17,752 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2023-11-23 20:08:17,755 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:08:17,756 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:08:17,756 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:08:17,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:08:17,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:17" (1/1) ... [2023-11-23 20:08:17,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:17" (1/1) ... [2023-11-23 20:08:17,779 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:17" (1/1) ... [2023-11-23 20:08:17,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:17" (1/1) ... [2023-11-23 20:08:17,786 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:17" (1/1) ... [2023-11-23 20:08:17,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:17" (1/1) ... [2023-11-23 20:08:17,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:17" (1/1) ... [2023-11-23 20:08:17,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:17" (1/1) ... [2023-11-23 20:08:17,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:08:17,811 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:08:17,811 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:08:17,812 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:08:17,813 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:17" (1/1) ... [2023-11-23 20:08:17,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:08:17,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:08:17,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:08:17,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:08:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:08:17,922 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:08:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:08:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:08:17,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:08:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:08:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:08:18,069 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:08:18,071 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:08:18,343 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:08:18,640 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:08:18,640 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:08:18,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:18 BoogieIcfgContainer [2023-11-23 20:08:18,642 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:08:18,643 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:08:18,644 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:08:18,654 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:08:18,654 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:18" (1/1) ... [2023-11-23 20:08:18,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:08:18,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:18,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2023-11-23 20:08:18,711 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-23 20:08:18,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:08:18,715 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:18,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:19,135 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:08:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:19,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:08:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:19,511 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:08:19,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:08:19 ImpRootNode [2023-11-23 20:08:19,544 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:08:19,548 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:08:19,548 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:08:19,549 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:08:19,550 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:18" (3/4) ... [2023-11-23 20:08:19,556 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:08:19,557 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:08:19,558 INFO L158 Benchmark]: Toolchain (without parser) took 3392.10ms. Allocated memory is still 136.3MB. Free memory was 90.7MB in the beginning and 68.6MB in the end (delta: 22.1MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2023-11-23 20:08:19,559 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:08:19,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1497.92ms. Allocated memory is still 136.3MB. Free memory was 90.4MB in the beginning and 60.7MB in the end (delta: 29.7MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2023-11-23 20:08:19,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.04ms. Allocated memory is still 136.3MB. Free memory was 60.7MB in the beginning and 57.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:19,562 INFO L158 Benchmark]: Boogie Preprocessor took 54.97ms. Allocated memory is still 136.3MB. Free memory was 57.6MB in the beginning and 55.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:19,563 INFO L158 Benchmark]: RCFGBuilder took 831.38ms. Allocated memory is still 136.3MB. Free memory was 55.9MB in the beginning and 63.8MB in the end (delta: -7.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2023-11-23 20:08:19,564 INFO L158 Benchmark]: CodeCheck took 901.20ms. Allocated memory is still 136.3MB. Free memory was 63.8MB in the beginning and 69.4MB in the end (delta: -5.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:08:19,565 INFO L158 Benchmark]: Witness Printer took 9.48ms. Allocated memory is still 136.3MB. Free memory was 69.4MB in the beginning and 68.6MB in the end (delta: 832.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:19,575 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: 0.8s, 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, 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 - UnprovableResult [Line: 1559]: 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); [L1568] CALL 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, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={14:13}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_predec_02_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)) [L1559] --data 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] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1497.92ms. Allocated memory is still 136.3MB. Free memory was 90.4MB in the beginning and 60.7MB in the end (delta: 29.7MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.04ms. Allocated memory is still 136.3MB. Free memory was 60.7MB in the beginning and 57.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.97ms. Allocated memory is still 136.3MB. Free memory was 57.6MB in the beginning and 55.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 831.38ms. Allocated memory is still 136.3MB. Free memory was 55.9MB in the beginning and 63.8MB in the end (delta: -7.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * CodeCheck took 901.20ms. Allocated memory is still 136.3MB. Free memory was 63.8MB in the beginning and 69.4MB in the end (delta: -5.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.48ms. Allocated memory is still 136.3MB. Free memory was 69.4MB in the beginning and 68.6MB in the end (delta: 832.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:08:19,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_02_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC --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 64cd393683af38b1e269cbf5df7e3124cf504d7be3c9164b51306a9786286716 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:08:22,445 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:08:22,579 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:08:22,629 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:08:22,630 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:08:22,631 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:08:22,632 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:08:22,632 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:08:22,633 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:08:22,638 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:08:22,639 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:08:22,639 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:08:22,640 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:08:22,641 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:08:22,642 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:08:22,642 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:08:22,643 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:08:22,643 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:08:22,643 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:08:22,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:08:22,645 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:08:22,646 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:08:22,646 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:08:22,647 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:08:22,647 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:08:22,648 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:08:22,648 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:08:22,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:08:22,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:08:22,650 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:08:22,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:08:22,651 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:08:22,651 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:08:22,652 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:08:22,652 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:08:22,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:08:22,653 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64cd393683af38b1e269cbf5df7e3124cf504d7be3c9164b51306a9786286716 [2023-11-23 20:08:23,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:08:23,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:08:23,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:08:23,036 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:08:23,036 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:08:23,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_02_bad.i [2023-11-23 20:08:26,280 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:08:26,887 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:08:26,888 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_02_bad.i [2023-11-23 20:08:26,931 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/data/461298bb1/aa327cce253047b6b071ad63a6208efb/FLAG91e6abde2 [2023-11-23 20:08:26,953 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/data/461298bb1/aa327cce253047b6b071ad63a6208efb [2023-11-23 20:08:26,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:08:26,962 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:08:26,966 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:08:26,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:08:26,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:08:26,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:26" (1/1) ... [2023-11-23 20:08:26,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b2487e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:26, skipping insertion in model container [2023-11-23 20:08:26,977 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:26" (1/1) ... [2023-11-23 20:08:27,096 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:08:27,689 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:08:28,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:08:28,480 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:08:28,519 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:08:28,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:08:28,829 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:28,830 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:28,830 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:28,830 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:28,830 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:28,838 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:08:28,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:28 WrapperNode [2023-11-23 20:08:28,839 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:08:28,840 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:08:28,840 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:08:28,840 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:08:28,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:28" (1/1) ... [2023-11-23 20:08:28,909 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:28" (1/1) ... [2023-11-23 20:08:28,947 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2023-11-23 20:08:28,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:08:28,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:08:28,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:08:28,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:08:28,961 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:28" (1/1) ... [2023-11-23 20:08:28,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:28" (1/1) ... [2023-11-23 20:08:28,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:28" (1/1) ... [2023-11-23 20:08:28,967 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:28" (1/1) ... [2023-11-23 20:08:28,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:28" (1/1) ... [2023-11-23 20:08:28,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:28" (1/1) ... [2023-11-23 20:08:28,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:28" (1/1) ... [2023-11-23 20:08:28,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:28" (1/1) ... [2023-11-23 20:08:28,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:08:28,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:08:28,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:08:28,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:08:28,997 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:28" (1/1) ... [2023-11-23 20:08:29,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:08:29,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:08:29,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:08:29,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:08:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:08:29,108 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:08:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:08:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:08:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:08:29,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:08:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:08:29,334 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:08:29,337 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:08:29,556 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:08:29,750 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:08:29,753 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:08:29,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:29 BoogieIcfgContainer [2023-11-23 20:08:29,759 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:08:29,760 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:08:29,761 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:08:29,773 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:08:29,774 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:29" (1/1) ... [2023-11-23 20:08:29,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:08:29,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:29,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2023-11-23 20:08:29,900 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-23 20:08:29,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:08:29,907 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:29,908 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:08:29,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:08:29,911 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:08:29,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:08:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:30,183 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:08:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:30,334 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:08:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:30,375 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:08:30,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-23 20:08:30,379 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:08:30,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:08:30 ImpRootNode [2023-11-23 20:08:30,414 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:08:30,415 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:08:30,415 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:08:30,416 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:08:30,416 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:29" (3/4) ... [2023-11-23 20:08:30,418 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 20:08:30,480 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:08:30,481 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:08:30,482 INFO L158 Benchmark]: Toolchain (without parser) took 3519.79ms. Allocated memory is still 123.7MB. Free memory was 95.9MB in the beginning and 77.4MB in the end (delta: 18.5MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2023-11-23 20:08:30,483 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 65.0MB. Free memory was 41.3MB in the beginning and 41.3MB in the end (delta: 73.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:08:30,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1872.95ms. Allocated memory is still 123.7MB. Free memory was 95.9MB in the beginning and 71.0MB in the end (delta: 24.9MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2023-11-23 20:08:30,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.33ms. Allocated memory is still 123.7MB. Free memory was 70.4MB in the beginning and 67.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:30,490 INFO L158 Benchmark]: Boogie Preprocessor took 46.07ms. Allocated memory is still 123.7MB. Free memory was 67.6MB in the beginning and 65.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:30,491 INFO L158 Benchmark]: RCFGBuilder took 763.28ms. Allocated memory is still 123.7MB. Free memory was 65.5MB in the beginning and 94.8MB in the end (delta: -29.2MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2023-11-23 20:08:30,493 INFO L158 Benchmark]: CodeCheck took 653.99ms. Allocated memory is still 123.7MB. Free memory was 94.8MB in the beginning and 79.4MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:08:30,493 INFO L158 Benchmark]: Witness Printer took 65.83ms. Allocated memory is still 123.7MB. Free memory was 79.4MB in the beginning and 77.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:30,499 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: 0.6s, 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, 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 - CounterExampleResult [Line: 1559]: 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); [L1568] CALL 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, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_predec_02_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)) [L1559] --data 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] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 65.0MB. Free memory was 41.3MB in the beginning and 41.3MB in the end (delta: 73.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1872.95ms. Allocated memory is still 123.7MB. Free memory was 95.9MB in the beginning and 71.0MB in the end (delta: 24.9MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.33ms. Allocated memory is still 123.7MB. Free memory was 70.4MB in the beginning and 67.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.07ms. Allocated memory is still 123.7MB. Free memory was 67.6MB in the beginning and 65.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 763.28ms. Allocated memory is still 123.7MB. Free memory was 65.5MB in the beginning and 94.8MB in the end (delta: -29.2MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * CodeCheck took 653.99ms. Allocated memory is still 123.7MB. Free memory was 94.8MB in the beginning and 79.4MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 65.83ms. Allocated memory is still 123.7MB. Free memory was 79.4MB in the beginning and 77.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-23 20:08:30,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e695abd-9e91-4c11-bfa9-41a1e871acea/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)