./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_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_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/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_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/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_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/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 e09fa54e2cc198b3eceea1602ee62bf8d422eab76499615a6f09e84520b578cc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:57:08,388 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:57:08,465 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:57:08,471 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:57:08,472 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:57:08,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:57:08,521 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:57:08,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:57:08,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:57:08,523 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:57:08,524 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:57:08,524 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:57:08,525 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:57:08,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:57:08,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:57:08,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:57:08,527 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:57:08,528 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:57:08,528 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:57:08,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:57:08,529 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:57:08,530 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:57:08,530 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:57:08,531 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:57:08,531 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:57:08,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:08,532 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:57:08,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:57:08,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:57:08,534 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:57:08,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:57:08,535 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:57:08,535 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_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e09fa54e2cc198b3eceea1602ee62bf8d422eab76499615a6f09e84520b578cc [2023-11-19 03:57:08,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:57:08,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:57:08,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:57:08,824 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:57:08,825 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:57:08,826 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i [2023-11-19 03:57:11,908 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:57:12,356 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:57:12,357 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i [2023-11-19 03:57:12,382 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/data/6fd50d2a9/52a6e22775de448f9bd89bcb4bfd6b51/FLAG74960094d [2023-11-19 03:57:12,397 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/data/6fd50d2a9/52a6e22775de448f9bd89bcb4bfd6b51 [2023-11-19 03:57:12,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:57:12,402 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:57:12,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:12,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:57:12,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:57:12,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:12" (1/1) ... [2023-11-19 03:57:12,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5413b81a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:12, skipping insertion in model container [2023-11-19 03:57:12,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:12" (1/1) ... [2023-11-19 03:57:12,495 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:57:12,940 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:57:13,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:13,496 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:57:13,526 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:57:13,633 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:13,833 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:57:13,834 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:57:13,834 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:57:13,834 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:57:13,834 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:57:13,843 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:57:13,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:13 WrapperNode [2023-11-19 03:57:13,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:13,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:13,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:57:13,860 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:57:13,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:13" (1/1) ... [2023-11-19 03:57:13,958 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:13" (1/1) ... [2023-11-19 03:57:14,080 INFO L138 Inliner]: procedures = 500, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 98 [2023-11-19 03:57:14,081 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:14,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:57:14,082 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:57:14,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:57:14,094 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:13" (1/1) ... [2023-11-19 03:57:14,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:13" (1/1) ... [2023-11-19 03:57:14,106 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:13" (1/1) ... [2023-11-19 03:57:14,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:13" (1/1) ... [2023-11-19 03:57:14,113 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:13" (1/1) ... [2023-11-19 03:57:14,116 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:13" (1/1) ... [2023-11-19 03:57:14,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:13" (1/1) ... [2023-11-19 03:57:14,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:13" (1/1) ... [2023-11-19 03:57:14,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:57:14,144 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:57:14,144 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:57:14,144 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:57:14,145 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:13" (1/1) ... [2023-11-19 03:57:14,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:14,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:57:14,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:57:14,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:57:14,244 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:57:14,245 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:57:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:57:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:57:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:57:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:57:14,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:57:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:57:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:57:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:57:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:57:14,415 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:57:14,417 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:57:14,681 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:57:14,935 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:57:14,935 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:57:14,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:14 BoogieIcfgContainer [2023-11-19 03:57:14,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:57:14,942 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:57:14,942 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:57:14,952 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:57:14,952 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:14" (1/1) ... [2023-11-19 03:57:14,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:57:15,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:15,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 03:57:15,020 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 03:57:15,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:57:15,025 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:15,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:15,650 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:57:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:15,895 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:57:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:15,950 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:57:15,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:57:15 ImpRootNode [2023-11-19 03:57:15,980 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:57:15,980 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:57:15,981 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:57:15,981 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:57:15,981 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:14" (3/4) ... [2023-11-19 03:57:15,984 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:57:15,985 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:57:15,986 INFO L158 Benchmark]: Toolchain (without parser) took 3583.97ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 138.4MB in the beginning and 133.4MB in the end (delta: 5.0MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2023-11-19 03:57:15,987 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 125.8MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:57:15,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1454.48ms. Allocated memory is still 169.9MB. Free memory was 138.4MB in the beginning and 131.9MB in the end (delta: 6.5MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2023-11-19 03:57:15,989 INFO L158 Benchmark]: Boogie Procedure Inliner took 222.83ms. Allocated memory is still 169.9MB. Free memory was 131.9MB in the beginning and 129.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:15,990 INFO L158 Benchmark]: Boogie Preprocessor took 60.70ms. Allocated memory is still 169.9MB. Free memory was 129.0MB in the beginning and 126.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:15,990 INFO L158 Benchmark]: RCFGBuilder took 797.30ms. Allocated memory is still 169.9MB. Free memory was 126.9MB in the beginning and 87.0MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-19 03:57:15,991 INFO L158 Benchmark]: CodeCheck took 1038.12ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 87.0MB in the beginning and 134.5MB in the end (delta: -47.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:57:15,993 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 205.5MB. Free memory was 134.5MB in the beginning and 133.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:16,002 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: 1.0s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1561] 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) [L1561] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=16, argc=16, argv={12:18}, argv={12:18}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] CALL CWE191_Integer_Underflow__int_rand_predec_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1555] dataArray[2] = data [L1556] CALL CWE191_Integer_Underflow__int_rand_predec_66b_badSink(dataArray) [L1568] EXPR dataArray[2] [L1568] int data = dataArray[2]; [L1570] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataArray={12115:0}, dataArray={12115:0}, 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 0.23ms. Allocated memory is still 125.8MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1454.48ms. Allocated memory is still 169.9MB. Free memory was 138.4MB in the beginning and 131.9MB in the end (delta: 6.5MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 222.83ms. Allocated memory is still 169.9MB. Free memory was 131.9MB in the beginning and 129.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.70ms. Allocated memory is still 169.9MB. Free memory was 129.0MB in the beginning and 126.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 797.30ms. Allocated memory is still 169.9MB. Free memory was 126.9MB in the beginning and 87.0MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * CodeCheck took 1038.12ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 87.0MB in the beginning and 134.5MB in the end (delta: -47.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 205.5MB. Free memory was 134.5MB in the beginning and 133.4MB 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 03:57:16,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/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_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/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_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/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 e09fa54e2cc198b3eceea1602ee62bf8d422eab76499615a6f09e84520b578cc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:57:18,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:57:18,981 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-19 03:57:19,019 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:57:19,020 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:57:19,021 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:57:19,022 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:57:19,023 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:57:19,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:57:19,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:57:19,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:57:19,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:57:19,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:57:19,027 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:57:19,027 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:57:19,028 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:57:19,029 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:57:19,029 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:57:19,030 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:57:19,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:57:19,031 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:57:19,032 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:57:19,033 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:57:19,033 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:57:19,034 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:57:19,034 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:57:19,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:57:19,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:19,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:57:19,037 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:57:19,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:57:19,037 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:57:19,038 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:57:19,038 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:57:19,039 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:57:19,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:57:19,040 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_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e09fa54e2cc198b3eceea1602ee62bf8d422eab76499615a6f09e84520b578cc [2023-11-19 03:57:19,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:57:19,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:57:19,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:57:19,524 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:57:19,525 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:57:19,527 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i [2023-11-19 03:57:22,679 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:57:23,248 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:57:23,251 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i [2023-11-19 03:57:23,285 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/data/7af4e1e79/ca6dce1b72d340339fdab2ebe131e349/FLAG621287ecc [2023-11-19 03:57:23,304 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/data/7af4e1e79/ca6dce1b72d340339fdab2ebe131e349 [2023-11-19 03:57:23,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:57:23,315 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:57:23,318 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:23,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:57:23,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:57:23,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:23" (1/1) ... [2023-11-19 03:57:23,326 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a18285d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:23, skipping insertion in model container [2023-11-19 03:57:23,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:23" (1/1) ... [2023-11-19 03:57:23,416 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:57:23,900 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:57:24,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:24,516 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:57:24,539 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:57:24,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:24,843 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:57:24,843 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:57:24,843 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:57:24,843 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:57:24,844 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:57:24,852 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:57:24,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:24 WrapperNode [2023-11-19 03:57:24,853 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:24,854 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:24,854 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:57:24,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:57:24,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:24" (1/1) ... [2023-11-19 03:57:24,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:24" (1/1) ... [2023-11-19 03:57:24,966 INFO L138 Inliner]: procedures = 505, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2023-11-19 03:57:24,966 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:24,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:57:24,967 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:57:24,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:57:24,977 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:24" (1/1) ... [2023-11-19 03:57:24,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:24" (1/1) ... [2023-11-19 03:57:24,992 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:24" (1/1) ... [2023-11-19 03:57:24,992 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:24" (1/1) ... [2023-11-19 03:57:25,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:24" (1/1) ... [2023-11-19 03:57:25,009 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:24" (1/1) ... [2023-11-19 03:57:25,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:24" (1/1) ... [2023-11-19 03:57:25,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:24" (1/1) ... [2023-11-19 03:57:25,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:57:25,039 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:57:25,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:57:25,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:57:25,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:24" (1/1) ... [2023-11-19 03:57:25,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:25,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:57:25,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:57:25,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:57:25,124 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:57:25,125 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:57:25,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:57:25,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:57:25,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:57:25,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:57:25,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:57:25,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 03:57:25,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:57:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 03:57:25,126 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:57:25,293 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:57:25,294 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:57:25,510 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:57:25,577 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:57:25,577 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:57:25,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:25 BoogieIcfgContainer [2023-11-19 03:57:25,581 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:57:25,582 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:57:25,582 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:57:25,593 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:57:25,593 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:25" (1/1) ... [2023-11-19 03:57:25,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:57:25,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:25,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 03:57:25,687 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 03:57:25,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:57:25,691 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:25,692 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:57:25,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:57:25,698 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:57:25,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:57:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:25,994 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:57:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:26,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:57:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:26,333 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:57:26,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 03:57:26,345 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:57:26,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:57:26 ImpRootNode [2023-11-19 03:57:26,381 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:57:26,383 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:57:26,383 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:57:26,383 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:57:26,383 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:25" (3/4) ... [2023-11-19 03:57:26,384 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:57:26,455 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:57:26,455 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:57:26,456 INFO L158 Benchmark]: Toolchain (without parser) took 3141.14ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 37.8MB in the beginning and 50.9MB in the end (delta: -13.0MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2023-11-19 03:57:26,456 INFO L158 Benchmark]: CDTParser took 0.84ms. Allocated memory is still 65.0MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:57:26,457 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1534.72ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 37.7MB in the beginning and 67.5MB in the end (delta: -29.7MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2023-11-19 03:57:26,457 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.85ms. Allocated memory is still 96.5MB. Free memory was 67.5MB in the beginning and 64.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:57:26,458 INFO L158 Benchmark]: Boogie Preprocessor took 71.61ms. Allocated memory is still 96.5MB. Free memory was 64.3MB in the beginning and 62.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:26,458 INFO L158 Benchmark]: RCFGBuilder took 542.06ms. Allocated memory is still 96.5MB. Free memory was 62.1MB in the beginning and 41.7MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 03:57:26,459 INFO L158 Benchmark]: CodeCheck took 798.38ms. Allocated memory is still 96.5MB. Free memory was 41.7MB in the beginning and 53.0MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:57:26,459 INFO L158 Benchmark]: Witness Printer took 72.81ms. Allocated memory is still 96.5MB. Free memory was 53.0MB in the beginning and 50.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:26,466 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 - CounterExampleResult [Line: 1570]: 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); [L1561] 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) [L1561] 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] [L1562] CALL CWE191_Integer_Underflow__int_rand_predec_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1555] dataArray[2] = data [L1556] CALL CWE191_Integer_Underflow__int_rand_predec_66b_badSink(dataArray) [L1568] EXPR dataArray[2] [L1568] int data = dataArray[2]; [L1570] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataArray={5:0}, dataArray={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 0.84ms. Allocated memory is still 65.0MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1534.72ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 37.7MB in the beginning and 67.5MB in the end (delta: -29.7MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.85ms. Allocated memory is still 96.5MB. Free memory was 67.5MB in the beginning and 64.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.61ms. Allocated memory is still 96.5MB. Free memory was 64.3MB in the beginning and 62.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 542.06ms. Allocated memory is still 96.5MB. Free memory was 62.1MB in the beginning and 41.7MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 798.38ms. Allocated memory is still 96.5MB. Free memory was 41.7MB in the beginning and 53.0MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 72.81ms. Allocated memory is still 96.5MB. Free memory was 53.0MB in the beginning and 50.9MB 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! [2023-11-19 03:57:26,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b9a74e-cb9d-4d25-ad0e-59dc288107c0/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)