./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_21_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_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/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_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/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_fcea4795-88d5-404b-bf22-59decf60a4ee/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 fb8278a47a5d3c5db556a6acaa71813d5a99ef56a807f55dbf58f951f085e6ca --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:09:13,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:09:13,237 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 04:09:13,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:09:13,244 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:09:13,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:09:13,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:09:13,286 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:09:13,287 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:09:13,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:09:13,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:09:13,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:09:13,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:09:13,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:09:13,298 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:09:13,299 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:09:13,300 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:09:13,300 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:09:13,301 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:09:13,301 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:09:13,302 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:09:13,303 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:09:13,303 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:09:13,304 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:09:13,306 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:09:13,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:09:13,307 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:09:13,308 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:09:13,308 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:09:13,309 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:09:13,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:09:13,311 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:09:13,311 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_fcea4795-88d5-404b-bf22-59decf60a4ee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb8278a47a5d3c5db556a6acaa71813d5a99ef56a807f55dbf58f951f085e6ca [2023-11-19 04:09:13,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:09:13,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:09:13,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:09:13,742 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:09:13,743 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:09:13,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_21_bad.i [2023-11-19 04:09:17,564 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:09:18,076 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:09:18,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_21_bad.i [2023-11-19 04:09:18,114 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/data/075bc9eac/d5f4bf61b4f94a328c7fb83aa77f1f7e/FLAGfd0eed829 [2023-11-19 04:09:18,154 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/data/075bc9eac/d5f4bf61b4f94a328c7fb83aa77f1f7e [2023-11-19 04:09:18,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:09:18,163 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:09:18,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:09:18,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:09:18,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:09:18,176 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:18" (1/1) ... [2023-11-19 04:09:18,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b22c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:18, skipping insertion in model container [2023-11-19 04:09:18,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:18" (1/1) ... [2023-11-19 04:09:18,268 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:09:18,771 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:09:19,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:09:19,686 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:09:19,723 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:09:19,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:09:19,982 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:09:19,982 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:09:19,983 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:09:19,983 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:09:19,983 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:09:20,013 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:09:20,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:20 WrapperNode [2023-11-19 04:09:20,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:09:20,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:09:20,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:09:20,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:09:20,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:20" (1/1) ... [2023-11-19 04:09:20,110 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:20" (1/1) ... [2023-11-19 04:09:20,165 INFO L138 Inliner]: procedures = 500, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 94 [2023-11-19 04:09:20,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:09:20,166 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:09:20,166 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:09:20,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:09:20,178 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:20" (1/1) ... [2023-11-19 04:09:20,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:20" (1/1) ... [2023-11-19 04:09:20,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:20" (1/1) ... [2023-11-19 04:09:20,189 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:20" (1/1) ... [2023-11-19 04:09:20,196 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:20" (1/1) ... [2023-11-19 04:09:20,199 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:20" (1/1) ... [2023-11-19 04:09:20,201 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:20" (1/1) ... [2023-11-19 04:09:20,219 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:20" (1/1) ... [2023-11-19 04:09:20,223 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:09:20,227 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:09:20,227 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:09:20,228 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:09:20,229 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:20" (1/1) ... [2023-11-19 04:09:20,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:09:20,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:09:20,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:09:20,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:09:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:09:20,340 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:09:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:09:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:09:20,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:09:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:09:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:09:20,519 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:09:20,522 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:09:20,776 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:09:21,087 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:09:21,088 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:09:21,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:21 BoogieIcfgContainer [2023-11-19 04:09:21,093 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:09:21,094 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:09:21,094 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:09:21,106 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:09:21,107 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:21" (1/1) ... [2023-11-19 04:09:21,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:09:21,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:09:21,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-11-19 04:09:21,202 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-19 04:09:21,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:09:21,206 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:09:21,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:09:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:09:21,633 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:09:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:09:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:09:22,057 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:09:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:09:22,122 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 04:09:22,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:09:22 ImpRootNode [2023-11-19 04:09:22,174 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:09:22,178 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:09:22,178 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:09:22,178 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:09:22,179 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:21" (3/4) ... [2023-11-19 04:09:22,182 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:09:22,183 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:09:22,184 INFO L158 Benchmark]: Toolchain (without parser) took 4020.74ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 144.5MB in the beginning and 163.5MB in the end (delta: -19.0MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2023-11-19 04:09:22,185 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory was 103.1MB in the beginning and 103.0MB in the end (delta: 76.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:09:22,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1847.65ms. Allocated memory is still 174.1MB. Free memory was 144.5MB in the beginning and 139.1MB in the end (delta: 5.4MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2023-11-19 04:09:22,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 150.08ms. Allocated memory is still 174.1MB. Free memory was 139.1MB in the beginning and 136.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:09:22,187 INFO L158 Benchmark]: Boogie Preprocessor took 60.03ms. Allocated memory is still 174.1MB. Free memory was 136.1MB in the beginning and 134.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:09:22,188 INFO L158 Benchmark]: RCFGBuilder took 866.36ms. Allocated memory is still 174.1MB. Free memory was 134.0MB in the beginning and 96.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-19 04:09:22,189 INFO L158 Benchmark]: CodeCheck took 1080.37ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 96.2MB in the beginning and 164.5MB in the end (delta: -68.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:09:22,190 INFO L158 Benchmark]: Witness Printer took 5.37ms. Allocated memory is still 209.7MB. Free memory was 164.5MB in the beginning and 163.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:09:22,195 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: 1.0s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1564. 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); [L1548] static int badStatic = 0; [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:14}, argv={13:14}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_21_bad() [L1562] int data; [L1563] data = 0 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1564] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1564] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1564] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1565] badStatic = 1 [L1566] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, badStatic=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 0.34ms. Allocated memory is still 130.0MB. Free memory was 103.1MB in the beginning and 103.0MB in the end (delta: 76.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1847.65ms. Allocated memory is still 174.1MB. Free memory was 144.5MB in the beginning and 139.1MB in the end (delta: 5.4MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 150.08ms. Allocated memory is still 174.1MB. Free memory was 139.1MB in the beginning and 136.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.03ms. Allocated memory is still 174.1MB. Free memory was 136.1MB in the beginning and 134.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 866.36ms. Allocated memory is still 174.1MB. Free memory was 134.0MB in the beginning and 96.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * CodeCheck took 1080.37ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 96.2MB in the beginning and 164.5MB in the end (delta: -68.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.37ms. Allocated memory is still 209.7MB. Free memory was 164.5MB in the beginning and 163.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:09:22,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/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_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/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_fcea4795-88d5-404b-bf22-59decf60a4ee/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 fb8278a47a5d3c5db556a6acaa71813d5a99ef56a807f55dbf58f951f085e6ca --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:09:25,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:09:25,329 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-19 04:09:25,394 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:09:25,396 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:09:25,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:09:25,397 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:09:25,398 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:09:25,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:09:25,405 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:09:25,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:09:25,406 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:09:25,406 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:09:25,408 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:09:25,409 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:09:25,409 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:09:25,409 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:09:25,410 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:09:25,410 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:09:25,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:09:25,412 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:09:25,413 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:09:25,413 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:09:25,414 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:09:25,414 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:09:25,415 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 04:09:25,415 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:09:25,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:09:25,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:09:25,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:09:25,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:09:25,418 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:09:25,418 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:09:25,418 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:09:25,418 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 04:09:25,419 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:09:25,419 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_fcea4795-88d5-404b-bf22-59decf60a4ee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb8278a47a5d3c5db556a6acaa71813d5a99ef56a807f55dbf58f951f085e6ca [2023-11-19 04:09:25,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:09:25,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:09:25,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:09:25,949 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:09:25,950 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:09:25,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_21_bad.i [2023-11-19 04:09:29,601 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:09:30,219 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:09:30,220 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_21_bad.i [2023-11-19 04:09:30,255 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/data/a4731cb71/5c8d654faa68489d940342489fa6dfdb/FLAG366c19b47 [2023-11-19 04:09:30,272 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/data/a4731cb71/5c8d654faa68489d940342489fa6dfdb [2023-11-19 04:09:30,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:09:30,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:09:30,279 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:09:30,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:09:30,285 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:09:30,286 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:30" (1/1) ... [2023-11-19 04:09:30,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@114f27ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:30, skipping insertion in model container [2023-11-19 04:09:30,287 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:30" (1/1) ... [2023-11-19 04:09:30,367 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:09:30,887 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:09:31,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:09:31,555 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:09:31,582 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:09:31,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:09:31,900 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:09:31,901 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:09:31,901 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:09:31,901 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:09:31,901 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:09:31,911 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:09:31,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:31 WrapperNode [2023-11-19 04:09:31,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:09:31,913 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:09:31,913 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:09:31,913 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:09:31,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:31" (1/1) ... [2023-11-19 04:09:31,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:31" (1/1) ... [2023-11-19 04:09:32,035 INFO L138 Inliner]: procedures = 505, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2023-11-19 04:09:32,037 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:09:32,039 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:09:32,039 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:09:32,039 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:09:32,050 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:31" (1/1) ... [2023-11-19 04:09:32,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:31" (1/1) ... [2023-11-19 04:09:32,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:31" (1/1) ... [2023-11-19 04:09:32,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:31" (1/1) ... [2023-11-19 04:09:32,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:31" (1/1) ... [2023-11-19 04:09:32,100 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:31" (1/1) ... [2023-11-19 04:09:32,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:31" (1/1) ... [2023-11-19 04:09:32,114 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:31" (1/1) ... [2023-11-19 04:09:32,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:09:32,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:09:32,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:09:32,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:09:32,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:31" (1/1) ... [2023-11-19 04:09:32,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:09:32,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:09:32,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:09:32,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:09:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:09:32,236 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:09:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:09:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:09:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:09:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:09:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:09:32,435 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:09:32,438 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:09:32,594 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:09:32,667 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:09:32,667 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:09:32,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:32 BoogieIcfgContainer [2023-11-19 04:09:32,672 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:09:32,673 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:09:32,674 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:09:32,686 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:09:32,687 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:32" (1/1) ... [2023-11-19 04:09:32,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:09:32,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:09:32,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-11-19 04:09:32,778 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-19 04:09:32,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:09:32,785 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:09:32,785 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:09:32,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:09:32,789 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:09:32,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 04:09:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:09:33,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:09:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:09:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:09:33,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:09:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:09:33,333 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 04:09:33,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:09:33,343 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 04:09:33,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:09:33 ImpRootNode [2023-11-19 04:09:33,389 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:09:33,393 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:09:33,393 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:09:33,393 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:09:33,394 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:32" (3/4) ... [2023-11-19 04:09:33,396 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 04:09:33,480 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:09:33,481 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:09:33,483 INFO L158 Benchmark]: Toolchain (without parser) took 3205.41ms. Allocated memory was 67.1MB in the beginning and 92.3MB in the end (delta: 25.2MB). Free memory was 39.8MB in the beginning and 51.2MB in the end (delta: -11.4MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-11-19 04:09:33,483 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 67.1MB. Free memory is still 43.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:09:33,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1633.43ms. Allocated memory was 67.1MB in the beginning and 92.3MB in the end (delta: 25.2MB). Free memory was 39.6MB in the beginning and 37.1MB in the end (delta: 2.5MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2023-11-19 04:09:33,485 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.20ms. Allocated memory is still 92.3MB. Free memory was 37.1MB in the beginning and 62.0MB in the end (delta: -24.8MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-11-19 04:09:33,485 INFO L158 Benchmark]: Boogie Preprocessor took 88.27ms. Allocated memory is still 92.3MB. Free memory was 62.0MB in the beginning and 60.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:09:33,486 INFO L158 Benchmark]: RCFGBuilder took 544.70ms. Allocated memory is still 92.3MB. Free memory was 60.4MB in the beginning and 42.1MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 04:09:33,486 INFO L158 Benchmark]: CodeCheck took 715.91ms. Allocated memory is still 92.3MB. Free memory was 42.1MB in the beginning and 53.6MB in the end (delta: -11.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:09:33,487 INFO L158 Benchmark]: Witness Printer took 88.90ms. Allocated memory is still 92.3MB. Free memory was 53.1MB in the beginning and 51.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:09:33,497 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: 0.6s, 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: 1554]: 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); [L1548] static int badStatic = 0; [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, argv={0:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_21_bad() [L1562] int data; [L1563] data = 0 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1564] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1565] badStatic = 1 [L1566] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, badStatic=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 0.76ms. Allocated memory is still 67.1MB. Free memory is still 43.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1633.43ms. Allocated memory was 67.1MB in the beginning and 92.3MB in the end (delta: 25.2MB). Free memory was 39.6MB in the beginning and 37.1MB in the end (delta: 2.5MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.20ms. Allocated memory is still 92.3MB. Free memory was 37.1MB in the beginning and 62.0MB in the end (delta: -24.8MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.27ms. Allocated memory is still 92.3MB. Free memory was 62.0MB in the beginning and 60.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 544.70ms. Allocated memory is still 92.3MB. Free memory was 60.4MB in the beginning and 42.1MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 715.91ms. Allocated memory is still 92.3MB. Free memory was 42.1MB in the beginning and 53.6MB in the end (delta: -11.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 88.90ms. Allocated memory is still 92.3MB. Free memory was 53.1MB in the beginning and 51.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 04:09:33,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcea4795-88d5-404b-bf22-59decf60a4ee/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)