./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_03_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_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/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_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/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_53778d69-236e-4b0d-9cf5-5e51e2023e95/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 f7b10beb0a545a3233e92398efbbdd5ae5428f1e517bc7baa8deae886bc799f2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:20:49,393 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:20:49,537 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:20:49,545 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:20:49,546 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:20:49,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:20:49,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:20:49,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:20:49,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:20:49,583 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:20:49,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:20:49,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:20:49,585 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:20:49,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:20:49,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:20:49,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:20:49,588 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:20:49,589 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:20:49,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:20:49,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:20:49,592 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:20:49,596 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:20:49,597 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:20:49,597 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:20:49,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:20:49,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:20:49,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:20:49,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:20:49,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:20:49,601 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:20:49,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:20:49,602 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:20:49,603 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_53778d69-236e-4b0d-9cf5-5e51e2023e95/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7b10beb0a545a3233e92398efbbdd5ae5428f1e517bc7baa8deae886bc799f2 [2023-11-23 20:20:49,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:20:49,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:20:49,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:20:49,992 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:20:49,993 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:20:49,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_03_bad.i [2023-11-23 20:20:53,681 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:20:54,269 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:20:54,270 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_03_bad.i [2023-11-23 20:20:54,298 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/data/e6cc3fc87/45a2e63350a94608be7bc150d119db57/FLAG34a9707cf [2023-11-23 20:20:54,316 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/data/e6cc3fc87/45a2e63350a94608be7bc150d119db57 [2023-11-23 20:20:54,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:20:54,321 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:20:54,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:20:54,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:20:54,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:20:54,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:20:54" (1/1) ... [2023-11-23 20:20:54,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@187de6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:54, skipping insertion in model container [2023-11-23 20:20:54,331 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:20:54" (1/1) ... [2023-11-23 20:20:54,400 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:20:54,762 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:20:55,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:20:55,445 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:20:55,475 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:20:55,575 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:20:55,813 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:55,813 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:55,814 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:55,826 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:55,826 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:55,836 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:20:55,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:55 WrapperNode [2023-11-23 20:20:55,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:20:55,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:20:55,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:20:55,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:20:55,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:55" (1/1) ... [2023-11-23 20:20:55,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:55" (1/1) ... [2023-11-23 20:20:55,922 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2023-11-23 20:20:55,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:20:55,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:20:55,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:20:55,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:20:55,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:55" (1/1) ... [2023-11-23 20:20:55,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:55" (1/1) ... [2023-11-23 20:20:55,942 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:55" (1/1) ... [2023-11-23 20:20:55,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:55" (1/1) ... [2023-11-23 20:20:55,951 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:55" (1/1) ... [2023-11-23 20:20:55,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:55" (1/1) ... [2023-11-23 20:20:55,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:55" (1/1) ... [2023-11-23 20:20:55,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:55" (1/1) ... [2023-11-23 20:20:55,964 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:20:55,966 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:20:55,966 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:20:55,966 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:20:55,967 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:55" (1/1) ... [2023-11-23 20:20:55,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:20:55,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:20:56,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:20:56,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:20:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:20:56,081 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:20:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:20:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:20:56,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:20:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:20:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:20:56,296 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:20:56,299 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:20:56,576 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:20:56,871 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:20:56,871 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:20:56,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:20:56 BoogieIcfgContainer [2023-11-23 20:20:56,873 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:20:56,874 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:20:56,874 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:20:56,885 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:20:56,885 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:20:56" (1/1) ... [2023-11-23 20:20:56,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:20:56,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:20:56,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2023-11-23 20:20:56,976 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-23 20:20:56,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:20:56,981 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:20:56,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:20:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:20:57,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:20:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:20:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:20:57,693 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:20:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:20:57,733 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:20:57,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:20:57 ImpRootNode [2023-11-23 20:20:57,762 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:20:57,763 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:20:57,763 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:20:57,763 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:20:57,764 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:20:56" (3/4) ... [2023-11-23 20:20:57,767 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:20:57,768 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:20:57,769 INFO L158 Benchmark]: Toolchain (without parser) took 3448.53ms. Allocated memory is still 165.7MB. Free memory was 115.0MB in the beginning and 93.6MB in the end (delta: 21.5MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2023-11-23 20:20:57,770 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 136.3MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:20:57,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1515.36ms. Allocated memory is still 165.7MB. Free memory was 115.0MB in the beginning and 126.6MB in the end (delta: -11.6MB). Peak memory consumption was 74.2MB. Max. memory is 16.1GB. [2023-11-23 20:20:57,772 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.53ms. Allocated memory is still 165.7MB. Free memory was 125.7MB in the beginning and 123.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:20:57,773 INFO L158 Benchmark]: Boogie Preprocessor took 40.92ms. Allocated memory is still 165.7MB. Free memory was 123.3MB in the beginning and 121.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:20:57,773 INFO L158 Benchmark]: RCFGBuilder took 907.14ms. Allocated memory is still 165.7MB. Free memory was 121.4MB in the beginning and 80.4MB in the end (delta: 41.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-23 20:20:57,774 INFO L158 Benchmark]: CodeCheck took 888.55ms. Allocated memory is still 165.7MB. Free memory was 80.4MB in the beginning and 94.5MB in the end (delta: -14.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:20:57,775 INFO L158 Benchmark]: Witness Printer took 5.54ms. Allocated memory is still 165.7MB. Free memory was 94.5MB in the beginning and 93.6MB in the end (delta: 925.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:20:57,779 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1567] 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) [L1567] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={14:13}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] CALL CWE191_Integer_Underflow__int_rand_sub_03_bad() [L1550] int data; [L1551] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 136.3MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1515.36ms. Allocated memory is still 165.7MB. Free memory was 115.0MB in the beginning and 126.6MB in the end (delta: -11.6MB). Peak memory consumption was 74.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.53ms. Allocated memory is still 165.7MB. Free memory was 125.7MB in the beginning and 123.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.92ms. Allocated memory is still 165.7MB. Free memory was 123.3MB in the beginning and 121.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 907.14ms. Allocated memory is still 165.7MB. Free memory was 121.4MB in the beginning and 80.4MB in the end (delta: 41.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * CodeCheck took 888.55ms. Allocated memory is still 165.7MB. Free memory was 80.4MB in the beginning and 94.5MB in the end (delta: -14.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.54ms. Allocated memory is still 165.7MB. Free memory was 94.5MB in the beginning and 93.6MB in the end (delta: 925.3kB). 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 20:20:57,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/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_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/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_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/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_53778d69-236e-4b0d-9cf5-5e51e2023e95/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 f7b10beb0a545a3233e92398efbbdd5ae5428f1e517bc7baa8deae886bc799f2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:21:00,586 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:21:00,694 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:21:00,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:21:00,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:21:00,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:21:00,748 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:21:00,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:21:00,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:21:00,750 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:21:00,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:21:00,751 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:21:00,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:21:00,752 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:21:00,752 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:21:00,753 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:21:00,753 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:21:00,753 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:21:00,754 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:21:00,754 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:21:00,755 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:21:00,755 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:21:00,756 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:21:00,756 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:21:00,756 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:21:00,757 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:21:00,757 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:21:00,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:21:00,758 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:21:00,758 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:21:00,759 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:21:00,759 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:21:00,760 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:21:00,760 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:21:00,760 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:21:00,760 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:21:00,761 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_53778d69-236e-4b0d-9cf5-5e51e2023e95/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7b10beb0a545a3233e92398efbbdd5ae5428f1e517bc7baa8deae886bc799f2 [2023-11-23 20:21:01,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:21:01,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:21:01,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:21:01,191 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:21:01,192 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:21:01,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_03_bad.i [2023-11-23 20:21:04,398 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:21:04,910 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:21:04,911 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_03_bad.i [2023-11-23 20:21:04,939 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/data/92575dea3/8955b048961f4d14980679717e4cd748/FLAG526307525 [2023-11-23 20:21:04,960 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/data/92575dea3/8955b048961f4d14980679717e4cd748 [2023-11-23 20:21:04,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:21:04,971 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:21:04,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:21:04,974 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:21:04,978 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:21:04,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:21:04" (1/1) ... [2023-11-23 20:21:04,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4144f607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:04, skipping insertion in model container [2023-11-23 20:21:04,981 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:21:04" (1/1) ... [2023-11-23 20:21:05,074 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:21:05,523 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:21:06,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:21:06,355 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:21:06,399 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:21:06,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:21:06,726 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:21:06,732 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:21:06,732 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:21:06,732 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:21:06,733 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:21:06,742 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:21:06,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:06 WrapperNode [2023-11-23 20:21:06,743 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:21:06,745 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:21:06,745 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:21:06,749 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:21:06,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:06" (1/1) ... [2023-11-23 20:21:06,815 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:06" (1/1) ... [2023-11-23 20:21:06,861 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2023-11-23 20:21:06,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:21:06,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:21:06,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:21:06,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:21:06,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:06" (1/1) ... [2023-11-23 20:21:06,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:06" (1/1) ... [2023-11-23 20:21:06,891 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:06" (1/1) ... [2023-11-23 20:21:06,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:06" (1/1) ... [2023-11-23 20:21:06,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:06" (1/1) ... [2023-11-23 20:21:06,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:06" (1/1) ... [2023-11-23 20:21:06,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:06" (1/1) ... [2023-11-23 20:21:06,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:06" (1/1) ... [2023-11-23 20:21:06,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:21:06,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:21:06,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:21:06,950 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:21:06,951 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:06" (1/1) ... [2023-11-23 20:21:06,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:21:06,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:21:06,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:21:07,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:21:07,051 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:21:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:21:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:21:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:21:07,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:21:07,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:21:07,065 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:21:07,252 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:21:07,255 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:21:07,475 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:21:07,609 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:21:07,609 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:21:07,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:07 BoogieIcfgContainer [2023-11-23 20:21:07,613 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:21:07,614 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:21:07,614 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:21:07,626 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:21:07,627 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:07" (1/1) ... [2023-11-23 20:21:07,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:21:07,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:21:07,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2023-11-23 20:21:07,718 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-23 20:21:07,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:21:07,726 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:21:07,727 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:21:07,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:21:07,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:21:07,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:21:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:21:07,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:21:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:21:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:21:08,139 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:21:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:21:08,180 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:21:08,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-23 20:21:08,193 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:21:08,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:21:08 ImpRootNode [2023-11-23 20:21:08,230 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:21:08,233 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:21:08,233 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:21:08,234 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:21:08,234 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:07" (3/4) ... [2023-11-23 20:21:08,235 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 20:21:08,314 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:21:08,315 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:21:08,316 INFO L158 Benchmark]: Toolchain (without parser) took 3344.88ms. Allocated memory was 77.6MB in the beginning and 104.9MB in the end (delta: 27.3MB). Free memory was 50.3MB in the beginning and 45.1MB in the end (delta: 5.2MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2023-11-23 20:21:08,316 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 77.6MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:21:08,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1771.41ms. Allocated memory was 77.6MB in the beginning and 104.9MB in the end (delta: 27.3MB). Free memory was 50.1MB in the beginning and 55.0MB in the end (delta: -4.9MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2023-11-23 20:21:08,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.20ms. Allocated memory is still 104.9MB. Free memory was 55.0MB in the beginning and 51.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:21:08,319 INFO L158 Benchmark]: Boogie Preprocessor took 85.09ms. Allocated memory is still 104.9MB. Free memory was 51.8MB in the beginning and 49.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:21:08,320 INFO L158 Benchmark]: RCFGBuilder took 663.99ms. Allocated memory is still 104.9MB. Free memory was 49.8MB in the beginning and 62.5MB in the end (delta: -12.6MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2023-11-23 20:21:08,320 INFO L158 Benchmark]: CodeCheck took 616.19ms. Allocated memory is still 104.9MB. Free memory was 62.5MB in the beginning and 47.2MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:21:08,321 INFO L158 Benchmark]: Witness Printer took 82.12ms. Allocated memory is still 104.9MB. Free memory was 47.2MB in the beginning and 45.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:21:08,329 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1559]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1567] 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) [L1567] 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] [L1568] CALL CWE191_Integer_Underflow__int_rand_sub_03_bad() [L1550] int data; [L1551] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62ms. Allocated memory is still 77.6MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1771.41ms. Allocated memory was 77.6MB in the beginning and 104.9MB in the end (delta: 27.3MB). Free memory was 50.1MB in the beginning and 55.0MB in the end (delta: -4.9MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 117.20ms. Allocated memory is still 104.9MB. Free memory was 55.0MB in the beginning and 51.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.09ms. Allocated memory is still 104.9MB. Free memory was 51.8MB in the beginning and 49.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 663.99ms. Allocated memory is still 104.9MB. Free memory was 49.8MB in the beginning and 62.5MB in the end (delta: -12.6MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * CodeCheck took 616.19ms. Allocated memory is still 104.9MB. Free memory was 62.5MB in the beginning and 47.2MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 82.12ms. Allocated memory is still 104.9MB. Free memory was 47.2MB in the beginning and 45.1MB 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 20:21:08,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53778d69-236e-4b0d-9cf5-5e51e2023e95/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)