./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_61_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b2807a4cc87786940a61af69cc55473e7904a8c161f64abc11510e5a17174c28 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:13:20,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:13:20,604 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:13:20,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:13:20,613 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:13:20,661 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:13:20,664 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:13:20,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:13:20,666 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:13:20,672 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:13:20,673 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:13:20,674 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:13:20,675 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:13:20,677 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:13:20,677 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:13:20,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:13:20,679 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:13:20,679 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:13:20,680 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:13:20,681 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:13:20,681 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:13:20,683 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:13:20,683 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:13:20,684 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:13:20,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:13:20,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:13:20,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:13:20,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:13:20,688 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:13:20,688 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:13:20,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:13:20,690 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:13:20,691 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_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2807a4cc87786940a61af69cc55473e7904a8c161f64abc11510e5a17174c28 [2023-11-19 03:13:21,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:13:21,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:13:21,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:13:21,092 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:13:21,093 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:13:21,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_61_bad.i [2023-11-19 03:13:24,535 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:13:25,006 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:13:25,010 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_61_bad.i [2023-11-19 03:13:25,037 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/data/f4f5103c3/3791bbc92ace4f16b2cc2797be662bbe/FLAG2548d1f48 [2023-11-19 03:13:25,055 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/data/f4f5103c3/3791bbc92ace4f16b2cc2797be662bbe [2023-11-19 03:13:25,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:13:25,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:13:25,069 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:13:25,069 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:13:25,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:13:25,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:13:25" (1/1) ... [2023-11-19 03:13:25,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6913fcc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:25, skipping insertion in model container [2023-11-19 03:13:25,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:13:25" (1/1) ... [2023-11-19 03:13:25,156 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:13:25,587 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:13:26,197 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:13:26,208 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:13:26,235 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:13:26,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:13:26,555 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:13:26,556 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:13:26,556 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:13:26,556 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:13:26,556 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:13:26,564 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:13:26,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:26 WrapperNode [2023-11-19 03:13:26,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:13:26,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:13:26,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:13:26,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:13:26,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:26" (1/1) ... [2023-11-19 03:13:26,621 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:26" (1/1) ... [2023-11-19 03:13:26,668 INFO L138 Inliner]: procedures = 500, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 94 [2023-11-19 03:13:26,668 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:13:26,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:13:26,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:13:26,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:13:26,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:26" (1/1) ... [2023-11-19 03:13:26,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:26" (1/1) ... [2023-11-19 03:13:26,698 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:26" (1/1) ... [2023-11-19 03:13:26,699 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:26" (1/1) ... [2023-11-19 03:13:26,705 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:26" (1/1) ... [2023-11-19 03:13:26,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:26" (1/1) ... [2023-11-19 03:13:26,710 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:26" (1/1) ... [2023-11-19 03:13:26,711 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:26" (1/1) ... [2023-11-19 03:13:26,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:13:26,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:13:26,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:13:26,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:13:26,717 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:26" (1/1) ... [2023-11-19 03:13:26,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:13:26,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:13:26,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:13:26,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:13:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:13:26,793 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:13:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:13:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:13:26,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:13:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:13:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:13:26,968 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:13:26,971 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:13:27,312 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:13:27,554 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:13:27,554 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:13:27,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:13:27 BoogieIcfgContainer [2023-11-19 03:13:27,559 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:13:27,561 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:13:27,561 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:13:27,571 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:13:27,573 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:13:27" (1/1) ... [2023-11-19 03:13:27,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:13:27,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:13:27,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-11-19 03:13:27,640 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-19 03:13:27,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:13:27,644 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:13:27,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:13:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:13:28,089 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:13:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:13:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:13:28,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:13:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:13:28,409 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:13:28,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:13:28 ImpRootNode [2023-11-19 03:13:28,448 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:13:28,452 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:13:28,452 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:13:28,453 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:13:28,454 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:13:27" (3/4) ... [2023-11-19 03:13:28,458 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:13:28,459 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:13:28,460 INFO L158 Benchmark]: Toolchain (without parser) took 3396.41ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 67.9MB in the beginning and 102.4MB in the end (delta: -34.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:13:28,461 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 134.2MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:13:28,462 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1496.85ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 67.7MB in the beginning and 90.1MB in the end (delta: -22.4MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2023-11-19 03:13:28,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.89ms. Allocated memory is still 167.8MB. Free memory was 90.1MB in the beginning and 87.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:13:28,465 INFO L158 Benchmark]: Boogie Preprocessor took 46.08ms. Allocated memory is still 167.8MB. Free memory was 87.2MB in the beginning and 85.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:13:28,466 INFO L158 Benchmark]: RCFGBuilder took 843.38ms. Allocated memory is still 167.8MB. Free memory was 85.1MB in the beginning and 108.3MB in the end (delta: -23.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 03:13:28,467 INFO L158 Benchmark]: CodeCheck took 887.67ms. Allocated memory is still 167.8MB. Free memory was 108.3MB in the beginning and 103.4MB in the end (delta: 4.9MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2023-11-19 03:13:28,468 INFO L158 Benchmark]: Witness Printer took 7.24ms. Allocated memory is still 167.8MB. Free memory was 103.4MB in the beginning and 102.4MB in the end (delta: 924.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:13:28,478 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, 14 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, 7 NumberOfCodeBlocks, 7 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: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1570. 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); [L1563] 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) [L1563] 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}, argv={12:14}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE191_Integer_Underflow__int_rand_multiply_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_rand_multiply_61b_badSource(data) [L1570] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1570] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1570] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1570] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1570] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1571] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_rand_multiply_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_rand_multiply_61b_badSource(data) [L1554] COND TRUE data < 0 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] [L1556] data * 2 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 134.2MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1496.85ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 67.7MB in the beginning and 90.1MB in the end (delta: -22.4MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.89ms. Allocated memory is still 167.8MB. Free memory was 90.1MB in the beginning and 87.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.08ms. Allocated memory is still 167.8MB. Free memory was 87.2MB in the beginning and 85.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 843.38ms. Allocated memory is still 167.8MB. Free memory was 85.1MB in the beginning and 108.3MB in the end (delta: -23.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 887.67ms. Allocated memory is still 167.8MB. Free memory was 108.3MB in the beginning and 103.4MB in the end (delta: 4.9MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. * Witness Printer took 7.24ms. Allocated memory is still 167.8MB. Free memory was 103.4MB in the beginning and 102.4MB in the end (delta: 924.2kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 03:13:28,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b2807a4cc87786940a61af69cc55473e7904a8c161f64abc11510e5a17174c28 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:13:31,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:13:31,320 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-19 03:13:31,371 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:13:31,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:13:31,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:13:31,374 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:13:31,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:13:31,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:13:31,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:13:31,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:13:31,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:13:31,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:13:31,384 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:13:31,384 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:13:31,385 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:13:31,385 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:13:31,385 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:13:31,386 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:13:31,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:13:31,387 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:13:31,388 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:13:31,389 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:13:31,389 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:13:31,390 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:13:31,390 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:13:31,391 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:13:31,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:13:31,391 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:13:31,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:13:31,393 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:13:31,393 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:13:31,394 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:13:31,394 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:13:31,394 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:13:31,395 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:13:31,395 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_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2807a4cc87786940a61af69cc55473e7904a8c161f64abc11510e5a17174c28 [2023-11-19 03:13:31,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:13:31,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:13:31,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:13:31,849 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:13:31,850 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:13:31,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_61_bad.i [2023-11-19 03:13:35,014 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:13:35,465 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:13:35,467 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_61_bad.i [2023-11-19 03:13:35,502 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/data/3b5ebb017/c06f55e41d2945fca1128f668ad3c98e/FLAG9ef6e2407 [2023-11-19 03:13:35,521 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/data/3b5ebb017/c06f55e41d2945fca1128f668ad3c98e [2023-11-19 03:13:35,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:13:35,525 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:13:35,526 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:13:35,526 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:13:35,531 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:13:35,531 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:13:35" (1/1) ... [2023-11-19 03:13:35,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@557f4442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:35, skipping insertion in model container [2023-11-19 03:13:35,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:13:35" (1/1) ... [2023-11-19 03:13:35,596 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:13:35,991 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:13:36,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:13:36,742 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:13:36,782 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:13:36,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:13:37,168 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:13:37,168 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:13:37,168 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:13:37,168 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:13:37,169 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:13:37,177 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:13:37,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:37 WrapperNode [2023-11-19 03:13:37,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:13:37,179 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:13:37,179 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:13:37,179 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:13:37,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:37" (1/1) ... [2023-11-19 03:13:37,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:37" (1/1) ... [2023-11-19 03:13:37,248 INFO L138 Inliner]: procedures = 505, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2023-11-19 03:13:37,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:13:37,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:13:37,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:13:37,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:13:37,260 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:37" (1/1) ... [2023-11-19 03:13:37,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:37" (1/1) ... [2023-11-19 03:13:37,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:37" (1/1) ... [2023-11-19 03:13:37,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:37" (1/1) ... [2023-11-19 03:13:37,275 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:37" (1/1) ... [2023-11-19 03:13:37,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:37" (1/1) ... [2023-11-19 03:13:37,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:37" (1/1) ... [2023-11-19 03:13:37,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:37" (1/1) ... [2023-11-19 03:13:37,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:13:37,288 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:13:37,288 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:13:37,288 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:13:37,289 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:37" (1/1) ... [2023-11-19 03:13:37,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:13:37,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:13:37,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:13:37,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:13:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:13:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:13:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:13:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:13:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:13:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:13:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:13:37,571 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:13:37,574 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:13:37,739 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:13:37,886 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:13:37,890 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:13:37,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:13:37 BoogieIcfgContainer [2023-11-19 03:13:37,898 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:13:37,899 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:13:37,900 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:13:37,913 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:13:37,913 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:13:37" (1/1) ... [2023-11-19 03:13:37,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:13:37,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:13:38,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-11-19 03:13:38,010 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-19 03:13:38,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:13:38,021 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:13:38,021 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:13:38,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:13:38,028 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:13:38,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:13:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:13:38,254 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:13:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:13:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:13:38,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:13:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:13:38,451 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:13:38,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 03:13:38,461 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:13:38,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:13:38 ImpRootNode [2023-11-19 03:13:38,500 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:13:38,502 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:13:38,503 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:13:38,503 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:13:38,504 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:13:37" (3/4) ... [2023-11-19 03:13:38,505 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:13:38,587 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:13:38,588 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:13:38,589 INFO L158 Benchmark]: Toolchain (without parser) took 3064.21ms. Allocated memory is still 107.0MB. Free memory was 79.6MB in the beginning and 68.5MB in the end (delta: 11.1MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2023-11-19 03:13:38,590 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 73.4MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:13:38,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1651.90ms. Allocated memory is still 107.0MB. Free memory was 79.6MB in the beginning and 76.8MB in the end (delta: 2.8MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. [2023-11-19 03:13:38,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.00ms. Allocated memory is still 107.0MB. Free memory was 76.8MB in the beginning and 73.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:13:38,592 INFO L158 Benchmark]: Boogie Preprocessor took 37.92ms. Allocated memory is still 107.0MB. Free memory was 73.6MB in the beginning and 71.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:13:38,592 INFO L158 Benchmark]: RCFGBuilder took 610.57ms. Allocated memory is still 107.0MB. Free memory was 71.5MB in the beginning and 52.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 03:13:38,593 INFO L158 Benchmark]: CodeCheck took 600.83ms. Allocated memory is still 107.0MB. Free memory was 52.6MB in the beginning and 70.6MB in the end (delta: -18.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:13:38,593 INFO L158 Benchmark]: Witness Printer took 85.72ms. Allocated memory is still 107.0MB. Free memory was 70.6MB in the beginning and 68.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:13:38,601 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, 14 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, 7 NumberOfCodeBlocks, 7 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: 1556]: 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); [L1563] 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) [L1563] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE191_Integer_Underflow__int_rand_multiply_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_rand_multiply_61b_badSource(data) [L1570] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1570] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1570] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1571] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_rand_multiply_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_rand_multiply_61b_badSource(data) [L1554] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073774592, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073774592, 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 73.4MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1651.90ms. Allocated memory is still 107.0MB. Free memory was 79.6MB in the beginning and 76.8MB in the end (delta: 2.8MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.00ms. Allocated memory is still 107.0MB. Free memory was 76.8MB in the beginning and 73.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.92ms. Allocated memory is still 107.0MB. Free memory was 73.6MB in the beginning and 71.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 610.57ms. Allocated memory is still 107.0MB. Free memory was 71.5MB in the beginning and 52.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 600.83ms. Allocated memory is still 107.0MB. Free memory was 52.6MB in the beginning and 70.6MB in the end (delta: -18.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 85.72ms. Allocated memory is still 107.0MB. Free memory was 70.6MB in the beginning and 68.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 03:13:38,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_576dc840-528b-4c53-ac8b-251ec4b4aed1/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)