./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/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_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/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_e2c37476-f3c8-4374-bea2-80821f833be8/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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:08:08,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:08:09,091 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:08:09,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:08:09,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:08:09,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:08:09,144 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:08:09,145 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:08:09,146 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:08:09,150 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:08:09,151 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:08:09,151 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:08:09,152 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:08:09,154 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:08:09,154 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:08:09,154 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:08:09,155 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:08:09,155 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:08:09,155 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:08:09,156 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:08:09,156 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:08:09,157 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:08:09,158 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:08:09,158 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:08:09,158 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:08:09,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:08:09,159 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:08:09,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:08:09,160 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:08:09,160 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:08:09,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:08:09,162 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:08:09,162 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_e2c37476-f3c8-4374-bea2-80821f833be8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2023-11-23 20:08:09,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:08:09,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:08:09,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:08:09,552 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:08:09,553 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:08:09,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2023-11-23 20:08:12,723 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:08:13,097 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:08:13,099 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2023-11-23 20:08:13,145 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/data/2cb936ba1/ca6b36bfa1fe4efc9dc569fc20d9a802/FLAG99804c3d7 [2023-11-23 20:08:13,163 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/data/2cb936ba1/ca6b36bfa1fe4efc9dc569fc20d9a802 [2023-11-23 20:08:13,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:08:13,170 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:08:13,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:08:13,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:08:13,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:08:13,180 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:13" (1/1) ... [2023-11-23 20:08:13,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46f121d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:13, skipping insertion in model container [2023-11-23 20:08:13,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:13" (1/1) ... [2023-11-23 20:08:13,245 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:08:13,743 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:08:14,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:08:14,397 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:08:14,445 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:08:14,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:08:14,708 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:14,709 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:14,709 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:14,709 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:14,710 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:14,718 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:08:14,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:14 WrapperNode [2023-11-23 20:08:14,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:08:14,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:08:14,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:08:14,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:08:14,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:14" (1/1) ... [2023-11-23 20:08:14,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:14" (1/1) ... [2023-11-23 20:08:14,885 INFO L138 Inliner]: procedures = 499, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 101 [2023-11-23 20:08:14,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:08:14,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:08:14,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:08:14,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:08:14,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:14" (1/1) ... [2023-11-23 20:08:14,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:14" (1/1) ... [2023-11-23 20:08:14,934 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:14" (1/1) ... [2023-11-23 20:08:14,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:14" (1/1) ... [2023-11-23 20:08:14,941 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:14" (1/1) ... [2023-11-23 20:08:14,944 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:14" (1/1) ... [2023-11-23 20:08:14,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:14" (1/1) ... [2023-11-23 20:08:14,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:14" (1/1) ... [2023-11-23 20:08:14,952 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:08:14,953 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:08:14,953 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:08:14,953 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:08:14,954 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:14" (1/1) ... [2023-11-23 20:08:14,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:08:15,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:08:15,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:08:15,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:08:15,073 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:08:15,074 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:08:15,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:08:15,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:08:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:08:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:08:15,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:08:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:08:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:08:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:08:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:08:15,309 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:08:15,311 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:08:15,560 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:08:15,788 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:08:15,788 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:08:15,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:15 BoogieIcfgContainer [2023-11-23 20:08:15,792 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:08:15,793 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:08:15,793 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:08:15,804 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:08:15,804 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:15" (1/1) ... [2023-11-23 20:08:15,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:08:15,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:15,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-23 20:08:15,868 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-23 20:08:15,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:08:15,873 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:15,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:16,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:08:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:16,537 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:08:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:16,610 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:08:16,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:08:16 ImpRootNode [2023-11-23 20:08:16,648 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:08:16,652 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:08:16,652 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:08:16,652 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:08:16,653 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:15" (3/4) ... [2023-11-23 20:08:16,658 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:08:16,659 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:08:16,661 INFO L158 Benchmark]: Toolchain (without parser) took 3489.75ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 104.9MB in the beginning and 130.2MB in the end (delta: -25.4MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2023-11-23 20:08:16,661 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 111.1MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:08:16,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1545.62ms. Allocated memory is still 146.8MB. Free memory was 104.2MB in the beginning and 40.7MB in the end (delta: 63.6MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-23 20:08:16,663 INFO L158 Benchmark]: Boogie Procedure Inliner took 165.53ms. Allocated memory is still 146.8MB. Free memory was 40.7MB in the beginning and 114.6MB in the end (delta: -73.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2023-11-23 20:08:16,665 INFO L158 Benchmark]: Boogie Preprocessor took 65.17ms. Allocated memory is still 146.8MB. Free memory was 114.6MB in the beginning and 112.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:16,665 INFO L158 Benchmark]: RCFGBuilder took 839.23ms. Allocated memory is still 146.8MB. Free memory was 112.7MB in the beginning and 74.2MB in the end (delta: 38.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-23 20:08:16,666 INFO L158 Benchmark]: CodeCheck took 855.71ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 74.2MB in the beginning and 130.2MB in the end (delta: -56.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:08:16,667 INFO L158 Benchmark]: Witness Printer took 7.88ms. Allocated memory is still 176.2MB. Free memory is still 130.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:08:16,677 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: 0.8s, 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, 0.1s 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: 1562]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=14, argc=14, argv={13:16}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] EXPR *dataPtr1 = data [L1554-L1558] { int data = *dataPtr1; data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)); *dataPtr1 = data; } [L1560] EXPR \read(*dataPtr2) [L1560] int data = *dataPtr2; [L1562] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data={18407:0}, dataPtr1={18407:0}, dataPtr2={18407:0}, 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 0.33ms. Allocated memory is still 111.1MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1545.62ms. Allocated memory is still 146.8MB. Free memory was 104.2MB in the beginning and 40.7MB in the end (delta: 63.6MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 165.53ms. Allocated memory is still 146.8MB. Free memory was 40.7MB in the beginning and 114.6MB in the end (delta: -73.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.17ms. Allocated memory is still 146.8MB. Free memory was 114.6MB in the beginning and 112.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 839.23ms. Allocated memory is still 146.8MB. Free memory was 112.7MB in the beginning and 74.2MB in the end (delta: 38.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * CodeCheck took 855.71ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 74.2MB in the beginning and 130.2MB in the end (delta: -56.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.88ms. Allocated memory is still 176.2MB. Free memory is still 130.2MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:08:16,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/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_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/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_e2c37476-f3c8-4374-bea2-80821f833be8/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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:08:19,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:08:19,614 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:08:19,665 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:08:19,666 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:08:19,667 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:08:19,668 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:08:19,669 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:08:19,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:08:19,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:08:19,676 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:08:19,676 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:08:19,677 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:08:19,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:08:19,679 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:08:19,679 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:08:19,680 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:08:19,680 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:08:19,681 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:08:19,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:08:19,682 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:08:19,683 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:08:19,684 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:08:19,684 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:08:19,685 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:08:19,685 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:08:19,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:08:19,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:08:19,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:08:19,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:08:19,688 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:08:19,688 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:08:19,689 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:08:19,689 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:08:19,689 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:08:19,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:08:19,690 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_e2c37476-f3c8-4374-bea2-80821f833be8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2023-11-23 20:08:20,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:08:20,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:08:20,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:08:20,160 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:08:20,161 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:08:20,163 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2023-11-23 20:08:23,512 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:08:23,937 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:08:23,938 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2023-11-23 20:08:23,966 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/data/82fd08750/18f84594111f47e6af13b05eb755db13/FLAG4df76e334 [2023-11-23 20:08:23,981 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/data/82fd08750/18f84594111f47e6af13b05eb755db13 [2023-11-23 20:08:23,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:08:23,985 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:08:23,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:08:23,989 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:08:23,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:08:23,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:23" (1/1) ... [2023-11-23 20:08:23,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156df2f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:23, skipping insertion in model container [2023-11-23 20:08:23,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:23" (1/1) ... [2023-11-23 20:08:24,095 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:08:24,508 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:08:25,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:08:25,132 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:08:25,157 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:08:25,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:08:25,415 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:25,416 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:25,416 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:25,416 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:25,416 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:25,425 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:08:25,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:25 WrapperNode [2023-11-23 20:08:25,426 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:08:25,427 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:08:25,427 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:08:25,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:08:25,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:25" (1/1) ... [2023-11-23 20:08:25,483 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:25" (1/1) ... [2023-11-23 20:08:25,510 INFO L138 Inliner]: procedures = 504, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2023-11-23 20:08:25,510 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:08:25,511 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:08:25,511 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:08:25,511 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:08:25,521 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:25" (1/1) ... [2023-11-23 20:08:25,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:25" (1/1) ... [2023-11-23 20:08:25,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:25" (1/1) ... [2023-11-23 20:08:25,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:25" (1/1) ... [2023-11-23 20:08:25,551 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:25" (1/1) ... [2023-11-23 20:08:25,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:25" (1/1) ... [2023-11-23 20:08:25,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:25" (1/1) ... [2023-11-23 20:08:25,559 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:25" (1/1) ... [2023-11-23 20:08:25,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:08:25,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:08:25,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:08:25,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:08:25,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:25" (1/1) ... [2023-11-23 20:08:25,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:08:25,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:08:25,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:08:25,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:08:25,644 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:08:25,645 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:08:25,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:08:25,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:08:25,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:08:25,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:08:25,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:08:25,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 20:08:25,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:08:25,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 20:08:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:08:25,825 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:08:25,828 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:08:25,988 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:08:26,111 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:08:26,112 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:08:26,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:26 BoogieIcfgContainer [2023-11-23 20:08:26,116 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:08:26,117 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:08:26,117 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:08:26,128 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:08:26,128 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:26" (1/1) ... [2023-11-23 20:08:26,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:08:26,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:26,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-23 20:08:26,213 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-23 20:08:26,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:08:26,220 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:26,221 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:08:26,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:08:26,224 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:08:26,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:08:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:26,516 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:08:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:26,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:08:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:26,919 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:08:26,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-23 20:08:26,945 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:08:26,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:08:26 ImpRootNode [2023-11-23 20:08:26,984 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:08:26,987 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:08:26,987 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:08:26,987 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:08:26,988 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:26" (3/4) ... [2023-11-23 20:08:26,989 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 20:08:27,064 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:08:27,064 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:08:27,065 INFO L158 Benchmark]: Toolchain (without parser) took 3079.95ms. Allocated memory was 77.6MB in the beginning and 100.7MB in the end (delta: 23.1MB). Free memory was 50.9MB in the beginning and 58.8MB in the end (delta: -7.8MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2023-11-23 20:08:27,066 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 77.6MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:08:27,066 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1438.34ms. Allocated memory was 77.6MB in the beginning and 100.7MB in the end (delta: 23.1MB). Free memory was 50.8MB in the beginning and 50.0MB in the end (delta: 714.2kB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2023-11-23 20:08:27,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.43ms. Allocated memory is still 100.7MB. Free memory was 50.0MB in the beginning and 46.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:08:27,067 INFO L158 Benchmark]: Boogie Preprocessor took 53.21ms. Allocated memory is still 100.7MB. Free memory was 46.7MB in the beginning and 72.6MB in the end (delta: -25.8MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2023-11-23 20:08:27,068 INFO L158 Benchmark]: RCFGBuilder took 551.12ms. Allocated memory is still 100.7MB. Free memory was 72.6MB in the beginning and 52.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 20:08:27,068 INFO L158 Benchmark]: CodeCheck took 867.67ms. Allocated memory is still 100.7MB. Free memory was 52.7MB in the beginning and 60.9MB in the end (delta: -8.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:08:27,069 INFO L158 Benchmark]: Witness Printer took 77.68ms. Allocated memory is still 100.7MB. Free memory was 60.9MB in the beginning and 58.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:27,076 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: 0.8s, 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, 0.1s 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: 1562]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] EXPR *dataPtr1 = data [L1554-L1558] { int data = *dataPtr1; data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)); *dataPtr1 = data; } [L1560] EXPR \read(*dataPtr2) [L1560] int data = *dataPtr2; [L1562] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data={5:0}, dataPtr1={5:0}, dataPtr2={5:0}, 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 0.55ms. Allocated memory is still 77.6MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1438.34ms. Allocated memory was 77.6MB in the beginning and 100.7MB in the end (delta: 23.1MB). Free memory was 50.8MB in the beginning and 50.0MB in the end (delta: 714.2kB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.43ms. Allocated memory is still 100.7MB. Free memory was 50.0MB in the beginning and 46.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.21ms. Allocated memory is still 100.7MB. Free memory was 46.7MB in the beginning and 72.6MB in the end (delta: -25.8MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * RCFGBuilder took 551.12ms. Allocated memory is still 100.7MB. Free memory was 72.6MB in the beginning and 52.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 867.67ms. Allocated memory is still 100.7MB. Free memory was 52.7MB in the beginning and 60.9MB in the end (delta: -8.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 77.68ms. Allocated memory is still 100.7MB. Free memory was 60.9MB in the beginning and 58.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-23 20:08:27,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2c37476-f3c8-4374-bea2-80821f833be8/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)