./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL --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 17247b2da04193b56d03093b99ba117a04871cc4a2947503ed889a6135af0678 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:36:29,725 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:36:29,872 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 02:36:29,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:36:29,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:36:29,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:36:29,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:36:29,949 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:36:29,951 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:36:29,951 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:36:29,952 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:36:29,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:36:29,953 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:36:29,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:36:29,955 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:36:29,955 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:36:29,956 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:36:29,957 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:36:29,957 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:36:29,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:36:29,959 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:36:29,959 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:36:29,960 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:36:29,960 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:36:29,961 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:36:29,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:36:29,962 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:36:29,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:36:29,963 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:36:29,964 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:36:29,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:36:29,965 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:36:29,965 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_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17247b2da04193b56d03093b99ba117a04871cc4a2947503ed889a6135af0678 [2023-11-19 02:36:30,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:36:30,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:36:30,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:36:30,432 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:36:30,433 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:36:30,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_01_bad.i [2023-11-19 02:36:34,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:36:34,818 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:36:34,823 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_01_bad.i [2023-11-19 02:36:34,862 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/data/e2853261a/308f00900f3e4f729200b19c8c944f7c/FLAGa0b3a61ac [2023-11-19 02:36:34,877 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/data/e2853261a/308f00900f3e4f729200b19c8c944f7c [2023-11-19 02:36:34,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:36:34,882 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:36:34,884 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:36:34,884 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:36:34,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:36:34,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:36:34" (1/1) ... [2023-11-19 02:36:34,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d511822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:34, skipping insertion in model container [2023-11-19 02:36:34,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:36:34" (1/1) ... [2023-11-19 02:36:35,005 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:36:35,631 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:36:36,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:36:36,579 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:36:36,618 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:36:36,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:36:36,885 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:36:36,885 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:36:36,885 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:36:36,886 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:36:36,886 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:36:36,895 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:36:36,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:36 WrapperNode [2023-11-19 02:36:36,895 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:36:36,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:36:36,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:36:36,898 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:36:36,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:36" (1/1) ... [2023-11-19 02:36:36,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:36" (1/1) ... [2023-11-19 02:36:37,031 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2023-11-19 02:36:37,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:36:37,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:36:37,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:36:37,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:36:37,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:36" (1/1) ... [2023-11-19 02:36:37,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:36" (1/1) ... [2023-11-19 02:36:37,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:36" (1/1) ... [2023-11-19 02:36:37,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:36" (1/1) ... [2023-11-19 02:36:37,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:36" (1/1) ... [2023-11-19 02:36:37,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:36" (1/1) ... [2023-11-19 02:36:37,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:36" (1/1) ... [2023-11-19 02:36:37,076 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:36" (1/1) ... [2023-11-19 02:36:37,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:36:37,081 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:36:37,081 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:36:37,081 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:36:37,082 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:36" (1/1) ... [2023-11-19 02:36:37,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:36:37,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:36:37,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:36:37,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:36:37,189 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 02:36:37,190 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 02:36:37,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:36:37,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:36:37,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:36:37,191 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 02:36:37,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:36:37,448 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:36:37,451 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:36:37,725 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:36:38,003 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:36:38,003 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:36:38,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:36:38 BoogieIcfgContainer [2023-11-19 02:36:38,008 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:36:38,009 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:36:38,009 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:36:38,021 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:36:38,021 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:36:38" (1/1) ... [2023-11-19 02:36:38,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:36:38,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:36:38,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 02:36:38,093 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 02:36:38,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 02:36:38,098 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:36:38,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:36:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:36:38,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:36:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:36:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:36:38,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:36:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:36:38,756 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 02:36:38,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:36:38 ImpRootNode [2023-11-19 02:36:38,792 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:36:38,796 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:36:38,796 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:36:38,797 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:36:38,798 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:36:38" (3/4) ... [2023-11-19 02:36:38,801 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:36:38,802 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:36:38,804 INFO L158 Benchmark]: Toolchain (without parser) took 3921.22ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 137.2MB in the beginning and 169.2MB in the end (delta: -32.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2023-11-19 02:36:38,804 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 102.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:36:38,805 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2012.18ms. Allocated memory is still 169.9MB. Free memory was 137.2MB in the beginning and 77.8MB in the end (delta: 59.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-11-19 02:36:38,806 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.62ms. Allocated memory is still 169.9MB. Free memory was 77.8MB in the beginning and 134.8MB in the end (delta: -57.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 02:36:38,807 INFO L158 Benchmark]: Boogie Preprocessor took 48.24ms. Allocated memory is still 169.9MB. Free memory was 134.8MB in the beginning and 132.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:36:38,808 INFO L158 Benchmark]: RCFGBuilder took 927.01ms. Allocated memory is still 169.9MB. Free memory was 132.8MB in the beginning and 96.1MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-19 02:36:38,810 INFO L158 Benchmark]: CodeCheck took 783.39ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 95.2MB in the beginning and 170.3MB in the end (delta: -75.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:36:38,811 INFO L158 Benchmark]: Witness Printer took 6.74ms. Allocated memory is still 205.5MB. Free memory was 170.3MB in the beginning and 169.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:36:38,820 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 0.1s 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1552. 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); [L1562] 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) [L1562] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=14, argc=14, argv={12:13}, argv={12:13}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL CWE191_Integer_Underflow__int_rand_predec_01_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1552] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] --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 0.26ms. Allocated memory is still 130.0MB. Free memory is still 102.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2012.18ms. Allocated memory is still 169.9MB. Free memory was 137.2MB in the beginning and 77.8MB in the end (delta: 59.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 134.62ms. Allocated memory is still 169.9MB. Free memory was 77.8MB in the beginning and 134.8MB in the end (delta: -57.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.24ms. Allocated memory is still 169.9MB. Free memory was 134.8MB in the beginning and 132.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 927.01ms. Allocated memory is still 169.9MB. Free memory was 132.8MB in the beginning and 96.1MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * CodeCheck took 783.39ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 95.2MB in the beginning and 170.3MB in the end (delta: -75.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.74ms. Allocated memory is still 205.5MB. Free memory was 170.3MB in the beginning and 169.2MB in the end (delta: 1.1MB). 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 [2023-11-19 02:36:38,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/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_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL --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 17247b2da04193b56d03093b99ba117a04871cc4a2947503ed889a6135af0678 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:36:41,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:36:42,029 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-19 02:36:42,093 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:36:42,094 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:36:42,095 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:36:42,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:36:42,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:36:42,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:36:42,104 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:36:42,105 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:36:42,105 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:36:42,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:36:42,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:36:42,108 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 02:36:42,109 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 02:36:42,109 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:36:42,110 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 02:36:42,110 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:36:42,111 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:36:42,112 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:36:42,113 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:36:42,114 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:36:42,114 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:36:42,115 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:36:42,115 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 02:36:42,116 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:36:42,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:36:42,117 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:36:42,117 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:36:42,119 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:36:42,119 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 02:36:42,119 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:36:42,120 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:36:42,120 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 02:36:42,120 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 02:36:42,121 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_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17247b2da04193b56d03093b99ba117a04871cc4a2947503ed889a6135af0678 [2023-11-19 02:36:42,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:36:42,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:36:42,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:36:42,654 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:36:42,654 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:36:42,656 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_01_bad.i [2023-11-19 02:36:46,038 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:36:46,551 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:36:46,555 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_01_bad.i [2023-11-19 02:36:46,591 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/data/12fe6847d/8210e0aa17ee476bb4e7cef9a028c910/FLAGd50c6510c [2023-11-19 02:36:46,615 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/data/12fe6847d/8210e0aa17ee476bb4e7cef9a028c910 [2023-11-19 02:36:46,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:36:46,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:36:46,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:36:46,622 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:36:46,626 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:36:46,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:36:46" (1/1) ... [2023-11-19 02:36:46,628 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7af63cd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:46, skipping insertion in model container [2023-11-19 02:36:46,628 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:36:46" (1/1) ... [2023-11-19 02:36:46,727 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:36:47,234 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:36:47,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:36:47,890 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:36:47,932 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:36:48,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:36:48,284 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:36:48,284 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:36:48,285 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:36:48,285 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:36:48,285 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:36:48,295 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:36:48,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:48 WrapperNode [2023-11-19 02:36:48,296 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:36:48,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:36:48,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:36:48,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:36:48,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:48" (1/1) ... [2023-11-19 02:36:48,351 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:48" (1/1) ... [2023-11-19 02:36:48,401 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2023-11-19 02:36:48,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:36:48,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:36:48,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:36:48,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:36:48,422 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:48" (1/1) ... [2023-11-19 02:36:48,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:48" (1/1) ... [2023-11-19 02:36:48,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:48" (1/1) ... [2023-11-19 02:36:48,443 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:48" (1/1) ... [2023-11-19 02:36:48,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:48" (1/1) ... [2023-11-19 02:36:48,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:48" (1/1) ... [2023-11-19 02:36:48,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:48" (1/1) ... [2023-11-19 02:36:48,480 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:48" (1/1) ... [2023-11-19 02:36:48,500 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:36:48,501 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:36:48,501 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:36:48,501 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:36:48,502 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:36:48" (1/1) ... [2023-11-19 02:36:48,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:36:48,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:36:48,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:36:48,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:36:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 02:36:48,619 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 02:36:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 02:36:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:36:48,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:36:48,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:36:48,620 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 02:36:48,868 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:36:48,871 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:36:49,067 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:36:49,185 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:36:49,186 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:36:49,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:36:49 BoogieIcfgContainer [2023-11-19 02:36:49,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:36:49,195 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:36:49,195 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:36:49,206 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:36:49,207 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:36:49" (1/1) ... [2023-11-19 02:36:49,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:36:49,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:36:49,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 02:36:49,301 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 02:36:49,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 02:36:49,309 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:36:49,310 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:36:49,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:36:49,313 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:36:49,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 02:36:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:36:49,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:36:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:36:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:36:49,782 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:36:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:36:49,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 02:36:49,858 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 02:36:49,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:36:49 ImpRootNode [2023-11-19 02:36:49,894 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:36:49,897 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:36:49,897 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:36:49,897 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:36:49,898 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:36:49" (3/4) ... [2023-11-19 02:36:49,899 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 02:36:49,975 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:36:49,976 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:36:49,977 INFO L158 Benchmark]: Toolchain (without parser) took 3356.79ms. Allocated memory was 86.0MB in the beginning and 132.1MB in the end (delta: 46.1MB). Free memory was 58.5MB in the beginning and 97.1MB in the end (delta: -38.6MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2023-11-19 02:36:49,977 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 86.0MB. Free memory is still 61.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:36:49,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1674.45ms. Allocated memory was 86.0MB in the beginning and 132.1MB in the end (delta: 46.1MB). Free memory was 58.2MB in the beginning and 97.3MB in the end (delta: -39.0MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. [2023-11-19 02:36:49,979 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.96ms. Allocated memory is still 132.1MB. Free memory was 97.3MB in the beginning and 94.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:36:49,980 INFO L158 Benchmark]: Boogie Preprocessor took 93.55ms. Allocated memory is still 132.1MB. Free memory was 94.4MB in the beginning and 92.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:36:49,980 INFO L158 Benchmark]: RCFGBuilder took 692.79ms. Allocated memory is still 132.1MB. Free memory was 92.3MB in the beginning and 74.2MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 02:36:49,981 INFO L158 Benchmark]: CodeCheck took 699.41ms. Allocated memory is still 132.1MB. Free memory was 74.2MB in the beginning and 99.1MB in the end (delta: -24.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:36:49,981 INFO L158 Benchmark]: Witness Printer took 79.02ms. Allocated memory is still 132.1MB. Free memory was 99.1MB in the beginning and 97.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:36:49,985 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 0.1s 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: 1554]: 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); [L1562] 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) [L1562] 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}, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL CWE191_Integer_Underflow__int_rand_predec_01_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] --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 0.57ms. Allocated memory is still 86.0MB. Free memory is still 61.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1674.45ms. Allocated memory was 86.0MB in the beginning and 132.1MB in the end (delta: 46.1MB). Free memory was 58.2MB in the beginning and 97.3MB in the end (delta: -39.0MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.96ms. Allocated memory is still 132.1MB. Free memory was 97.3MB in the beginning and 94.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.55ms. Allocated memory is still 132.1MB. Free memory was 94.4MB in the beginning and 92.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 692.79ms. Allocated memory is still 132.1MB. Free memory was 92.3MB in the beginning and 74.2MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 699.41ms. Allocated memory is still 132.1MB. Free memory was 74.2MB in the beginning and 99.1MB in the end (delta: -24.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 79.02ms. Allocated memory is still 132.1MB. Free memory was 99.1MB in the beginning and 97.1MB 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! [2023-11-19 02:36:50,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680320e-c33e-42d6-abf6-dbbabe0dff96/bin/ukojak-verify-G8NBE6pJGL/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)