./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 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_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/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_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/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_9a93fa4e-69b2-41d0-9917-735d973a5eff/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_9a93fa4e-69b2-41d0-9917-735d973a5eff/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 e09fa54e2cc198b3eceea1602ee62bf8d422eab76499615a6f09e84520b578cc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:13:35,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:13:35,341 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:13:35,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:13:35,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:13:35,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:13:35,398 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:13:35,399 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:13:35,400 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:13:35,405 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:13:35,406 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:13:35,407 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:13:35,407 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:13:35,409 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:13:35,410 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:13:35,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:13:35,411 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:13:35,411 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:13:35,412 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:13:35,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:13:35,413 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:13:35,414 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:13:35,414 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:13:35,415 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:13:35,415 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:13:35,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:13:35,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:13:35,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:13:35,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:13:35,418 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:13:35,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:13:35,419 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:13:35,420 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_9a93fa4e-69b2-41d0-9917-735d973a5eff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e09fa54e2cc198b3eceea1602ee62bf8d422eab76499615a6f09e84520b578cc [2023-11-23 20:13:35,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:13:35,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:13:35,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:13:35,846 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:13:35,847 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:13:35,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i [2023-11-23 20:13:39,015 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:13:39,404 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:13:39,405 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i [2023-11-23 20:13:39,438 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/data/9abdec85b/02fdcc401e7e4e5db09d1adbd7d1dc55/FLAG787283e82 [2023-11-23 20:13:39,456 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/data/9abdec85b/02fdcc401e7e4e5db09d1adbd7d1dc55 [2023-11-23 20:13:39,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:13:39,464 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:13:39,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:13:39,468 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:13:39,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:13:39,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:13:39" (1/1) ... [2023-11-23 20:13:39,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45910586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:39, skipping insertion in model container [2023-11-23 20:13:39,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:13:39" (1/1) ... [2023-11-23 20:13:39,556 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:13:40,001 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:13:40,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:13:40,616 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:13:40,658 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:13:40,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:13:40,938 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:13:40,945 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:13:40,945 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:13:40,945 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:13:40,945 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:13:40,954 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:13:40,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:40 WrapperNode [2023-11-23 20:13:40,954 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:13:40,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:13:40,956 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:13:40,956 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:13:40,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:40" (1/1) ... [2023-11-23 20:13:41,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:40" (1/1) ... [2023-11-23 20:13:41,060 INFO L138 Inliner]: procedures = 500, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 97 [2023-11-23 20:13:41,061 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:13:41,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:13:41,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:13:41,062 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:13:41,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:40" (1/1) ... [2023-11-23 20:13:41,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:40" (1/1) ... [2023-11-23 20:13:41,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:40" (1/1) ... [2023-11-23 20:13:41,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:40" (1/1) ... [2023-11-23 20:13:41,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:40" (1/1) ... [2023-11-23 20:13:41,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:40" (1/1) ... [2023-11-23 20:13:41,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:40" (1/1) ... [2023-11-23 20:13:41,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:40" (1/1) ... [2023-11-23 20:13:41,098 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:13:41,099 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:13:41,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:13:41,099 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:13:41,100 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:40" (1/1) ... [2023-11-23 20:13:41,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:13:41,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:13:41,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:13:41,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:13:41,216 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:13:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:13:41,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:13:41,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:13:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:13:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:13:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:13:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:13:41,219 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:13:41,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:13:41,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:13:41,424 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:13:41,427 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:13:41,807 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:13:42,080 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:13:42,081 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:13:42,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:13:42 BoogieIcfgContainer [2023-11-23 20:13:42,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:13:42,084 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:13:42,084 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:13:42,096 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:13:42,096 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:13:42" (1/1) ... [2023-11-23 20:13:42,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:13:42,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:42,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-23 20:13:42,177 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-23 20:13:42,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:13:42,184 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:42,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:13:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:13:42,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:13:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:13:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:13:43,177 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:13:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:13:43,243 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:13:43,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:13:43 ImpRootNode [2023-11-23 20:13:43,280 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:13:43,282 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:13:43,282 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:13:43,283 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:13:43,283 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:13:42" (3/4) ... [2023-11-23 20:13:43,289 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:13:43,290 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:13:43,292 INFO L158 Benchmark]: Toolchain (without parser) took 3827.09ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 90.7MB in the beginning and 104.5MB in the end (delta: -13.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2023-11-23 20:13:43,293 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 109.1MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:13:43,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1487.17ms. Allocated memory is still 134.2MB. Free memory was 90.7MB in the beginning and 52.2MB in the end (delta: 38.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-23 20:13:43,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.38ms. Allocated memory is still 134.2MB. Free memory was 52.2MB in the beginning and 49.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:13:43,296 INFO L158 Benchmark]: Boogie Preprocessor took 36.36ms. Allocated memory is still 134.2MB. Free memory was 49.0MB in the beginning and 46.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:13:43,296 INFO L158 Benchmark]: RCFGBuilder took 984.19ms. Allocated memory is still 134.2MB. Free memory was 46.9MB in the beginning and 74.6MB in the end (delta: -27.6MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2023-11-23 20:13:43,298 INFO L158 Benchmark]: CodeCheck took 1196.27ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 74.6MB in the beginning and 104.5MB in the end (delta: -30.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:13:43,298 INFO L158 Benchmark]: Witness Printer took 8.20ms. Allocated memory is still 161.5MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:13:43,309 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: 1.1s, 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: 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)=13, argc=13, argv={12:14}, 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={18419:0}, dataArray={18419:0}, 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 0.38ms. Allocated memory is still 109.1MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1487.17ms. Allocated memory is still 134.2MB. Free memory was 90.7MB in the beginning and 52.2MB in the end (delta: 38.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.38ms. Allocated memory is still 134.2MB. Free memory was 52.2MB in the beginning and 49.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.36ms. Allocated memory is still 134.2MB. Free memory was 49.0MB in the beginning and 46.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 984.19ms. Allocated memory is still 134.2MB. Free memory was 46.9MB in the beginning and 74.6MB in the end (delta: -27.6MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * CodeCheck took 1196.27ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 74.6MB in the beginning and 104.5MB in the end (delta: -30.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.20ms. Allocated memory is still 161.5MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:13:43,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/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_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/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_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/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_9a93fa4e-69b2-41d0-9917-735d973a5eff/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_9a93fa4e-69b2-41d0-9917-735d973a5eff/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 e09fa54e2cc198b3eceea1602ee62bf8d422eab76499615a6f09e84520b578cc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:13:46,052 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:13:46,158 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:13:46,191 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:13:46,192 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:13:46,193 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:13:46,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:13:46,194 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:13:46,195 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:13:46,196 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:13:46,196 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:13:46,197 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:13:46,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:13:46,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:13:46,199 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:13:46,199 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:13:46,200 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:13:46,201 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:13:46,201 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:13:46,202 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:13:46,202 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:13:46,203 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:13:46,204 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:13:46,204 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:13:46,205 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:13:46,205 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:13:46,206 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:13:46,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:13:46,207 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:13:46,208 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:13:46,208 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:13:46,209 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:13:46,209 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:13:46,210 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:13:46,210 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:13:46,211 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:13:46,211 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_9a93fa4e-69b2-41d0-9917-735d973a5eff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e09fa54e2cc198b3eceea1602ee62bf8d422eab76499615a6f09e84520b578cc [2023-11-23 20:13:46,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:13:46,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:13:46,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:13:46,618 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:13:46,619 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:13:46,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i [2023-11-23 20:13:49,814 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:13:50,307 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:13:50,308 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i [2023-11-23 20:13:50,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/data/cb9852805/68872bb26c1d426d81940ed09e2fbfd3/FLAG7ad1c9347 [2023-11-23 20:13:50,364 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/data/cb9852805/68872bb26c1d426d81940ed09e2fbfd3 [2023-11-23 20:13:50,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:13:50,371 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:13:50,374 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:13:50,375 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:13:50,380 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:13:50,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:13:50" (1/1) ... [2023-11-23 20:13:50,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105b22cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:50, skipping insertion in model container [2023-11-23 20:13:50,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:13:50" (1/1) ... [2023-11-23 20:13:50,465 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:13:50,954 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:13:51,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:13:51,592 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:13:51,629 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:13:51,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:13:51,848 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:13:51,849 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:13:51,849 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:13:51,849 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:13:51,849 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:13:51,857 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:13:51,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:51 WrapperNode [2023-11-23 20:13:51,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:13:51,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:13:51,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:13:51,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:13:51,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:51" (1/1) ... [2023-11-23 20:13:51,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:51" (1/1) ... [2023-11-23 20:13:51,929 INFO L138 Inliner]: procedures = 505, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2023-11-23 20:13:51,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:13:51,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:13:51,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:13:51,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:13:51,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:51" (1/1) ... [2023-11-23 20:13:51,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:51" (1/1) ... [2023-11-23 20:13:51,947 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:51" (1/1) ... [2023-11-23 20:13:51,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:51" (1/1) ... [2023-11-23 20:13:51,983 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:51" (1/1) ... [2023-11-23 20:13:51,985 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:51" (1/1) ... [2023-11-23 20:13:51,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:51" (1/1) ... [2023-11-23 20:13:51,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:51" (1/1) ... [2023-11-23 20:13:51,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:13:51,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:13:51,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:13:51,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:13:51,997 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:51" (1/1) ... [2023-11-23 20:13:52,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:13:52,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:13:52,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:13:52,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:13:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:13:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:13:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:13:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:13:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:13:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:13:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:13:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 20:13:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:13:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 20:13:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:13:52,281 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:13:52,283 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:13:52,524 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:13:52,608 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:13:52,609 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:13:52,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:13:52 BoogieIcfgContainer [2023-11-23 20:13:52,610 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:13:52,611 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:13:52,612 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:13:52,622 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:13:52,622 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:13:52" (1/1) ... [2023-11-23 20:13:52,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:13:52,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:13:52,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-23 20:13:52,714 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-23 20:13:52,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:13:52,718 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:13:52,720 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:13:52,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:13:52,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:13:52,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:13:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:13:53,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:13:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:13:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:13:53,308 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:13:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:13:53,394 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:13:53,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:13:53,406 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:13:53,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:13:53 ImpRootNode [2023-11-23 20:13:53,447 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:13:53,450 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:13:53,451 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:13:53,452 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:13:53,452 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:13:52" (3/4) ... [2023-11-23 20:13:53,454 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 20:13:53,546 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:13:53,547 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:13:53,548 INFO L158 Benchmark]: Toolchain (without parser) took 3176.90ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 51.6MB in the beginning and 55.4MB in the end (delta: -3.8MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2023-11-23 20:13:53,549 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 79.7MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:13:53,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1483.91ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 51.4MB in the beginning and 68.4MB in the end (delta: -17.0MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2023-11-23 20:13:53,550 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.76ms. Allocated memory is still 111.1MB. Free memory was 68.4MB in the beginning and 65.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:13:53,550 INFO L158 Benchmark]: Boogie Preprocessor took 64.26ms. Allocated memory is still 111.1MB. Free memory was 65.2MB in the beginning and 63.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:13:53,551 INFO L158 Benchmark]: RCFGBuilder took 615.25ms. Allocated memory is still 111.1MB. Free memory was 62.6MB in the beginning and 75.3MB in the end (delta: -12.7MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-11-23 20:13:53,552 INFO L158 Benchmark]: CodeCheck took 836.27ms. Allocated memory is still 111.1MB. Free memory was 75.3MB in the beginning and 58.1MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 20:13:53,552 INFO L158 Benchmark]: Witness Printer took 96.57ms. Allocated memory is still 111.1MB. Free memory was 57.6MB in the beginning and 55.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:13:53,561 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: 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}, 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={7:0}, dataArray={7:0}, 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 0.38ms. Allocated memory is still 79.7MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1483.91ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 51.4MB in the beginning and 68.4MB in the end (delta: -17.0MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.76ms. Allocated memory is still 111.1MB. Free memory was 68.4MB in the beginning and 65.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.26ms. Allocated memory is still 111.1MB. Free memory was 65.2MB in the beginning and 63.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 615.25ms. Allocated memory is still 111.1MB. Free memory was 62.6MB in the beginning and 75.3MB in the end (delta: -12.7MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * CodeCheck took 836.27ms. Allocated memory is still 111.1MB. Free memory was 75.3MB in the beginning and 58.1MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 96.57ms. Allocated memory is still 111.1MB. Free memory was 57.6MB in the beginning and 55.4MB 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 20:13:53,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a93fa4e-69b2-41d0-9917-735d973a5eff/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)