./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_21_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2 --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 b2b377f51454d038e6c17c51a7cb4aa7d909e95814f84e86886059618cc4346c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:25:12,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:25:12,256 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:25:12,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:25:12,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:25:12,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:25:12,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:25:12,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:25:12,307 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:25:12,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:25:12,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:25:12,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:25:12,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:25:12,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:25:12,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:25:12,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:25:12,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:25:12,319 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:25:12,320 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:25:12,320 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:25:12,320 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:25:12,322 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:25:12,322 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:25:12,324 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:25:12,324 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:25:12,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:25:12,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:25:12,326 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:25:12,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:25:12,327 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:25:12,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:25:12,328 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:25:12,329 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_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2b377f51454d038e6c17c51a7cb4aa7d909e95814f84e86886059618cc4346c [2023-11-21 18:25:12,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:25:12,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:25:12,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:25:12,718 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:25:12,719 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:25:12,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_21_bad.i [2023-11-21 18:25:15,790 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:25:16,321 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:25:16,322 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_21_bad.i [2023-11-21 18:25:16,349 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/data/286d1be99/833d1fd80f0a484d83f50116c828aae9/FLAGdf07e8cf4 [2023-11-21 18:25:16,415 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/data/286d1be99/833d1fd80f0a484d83f50116c828aae9 [2023-11-21 18:25:16,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:25:16,421 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:25:16,423 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:25:16,423 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:25:16,429 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:25:16,430 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:16" (1/1) ... [2023-11-21 18:25:16,431 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d632a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:16, skipping insertion in model container [2023-11-21 18:25:16,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:16" (1/1) ... [2023-11-21 18:25:16,523 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:25:16,956 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:25:17,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:25:17,722 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:25:17,759 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:25:17,827 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:25:18,051 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:18,051 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:18,051 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:18,051 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:18,052 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:18,060 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:25:18,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:18 WrapperNode [2023-11-21 18:25:18,062 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:25:18,064 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:25:18,064 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:25:18,064 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:25:18,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:18" (1/1) ... [2023-11-21 18:25:18,134 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:18" (1/1) ... [2023-11-21 18:25:18,179 INFO L138 Inliner]: procedures = 500, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 90 [2023-11-21 18:25:18,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:25:18,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:25:18,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:25:18,180 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:25:18,202 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:18" (1/1) ... [2023-11-21 18:25:18,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:18" (1/1) ... [2023-11-21 18:25:18,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:18" (1/1) ... [2023-11-21 18:25:18,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:18" (1/1) ... [2023-11-21 18:25:18,229 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:18" (1/1) ... [2023-11-21 18:25:18,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:18" (1/1) ... [2023-11-21 18:25:18,243 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:18" (1/1) ... [2023-11-21 18:25:18,251 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:18" (1/1) ... [2023-11-21 18:25:18,255 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:25:18,255 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:25:18,256 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:25:18,256 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:25:18,257 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:18" (1/1) ... [2023-11-21 18:25:18,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:25:18,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:25:18,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:25:18,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:25:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:25:18,354 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:25:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:25:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:25:18,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:25:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:25:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:25:18,511 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:25:18,513 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:25:18,768 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:25:19,065 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:25:19,066 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:25:19,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:19 BoogieIcfgContainer [2023-11-21 18:25:19,068 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:25:19,070 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:25:19,070 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:25:19,082 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:25:19,084 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:19" (1/1) ... [2023-11-21 18:25:19,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:25:19,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-11-21 18:25:19,161 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-21 18:25:19,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:25:19,167 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:19,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:19,588 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:25:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:19,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:25:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:19,931 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:25:19,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:25:19 ImpRootNode [2023-11-21 18:25:19,971 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:25:19,972 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:25:19,973 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:25:19,976 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:25:19,977 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:19" (3/4) ... [2023-11-21 18:25:19,979 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:25:19,981 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:25:19,982 INFO L158 Benchmark]: Toolchain (without parser) took 3561.46ms. Allocated memory was 138.4MB in the beginning and 211.8MB in the end (delta: 73.4MB). Free memory was 99.4MB in the beginning and 155.1MB in the end (delta: -55.7MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-11-21 18:25:19,983 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 138.4MB. Free memory is still 111.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:25:19,984 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1639.44ms. Allocated memory was 138.4MB in the beginning and 211.8MB in the end (delta: 73.4MB). Free memory was 98.9MB in the beginning and 161.6MB in the end (delta: -62.6MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. [2023-11-21 18:25:19,985 INFO L158 Benchmark]: Boogie Procedure Inliner took 116.06ms. Allocated memory is still 211.8MB. Free memory was 161.6MB in the beginning and 158.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:25:19,986 INFO L158 Benchmark]: Boogie Preprocessor took 74.72ms. Allocated memory is still 211.8MB. Free memory was 158.4MB in the beginning and 156.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:25:19,987 INFO L158 Benchmark]: RCFGBuilder took 812.92ms. Allocated memory is still 211.8MB. Free memory was 156.3MB in the beginning and 119.6MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-21 18:25:19,989 INFO L158 Benchmark]: CodeCheck took 901.93ms. Allocated memory is still 211.8MB. Free memory was 119.6MB in the beginning and 155.1MB in the end (delta: -35.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:25:19,989 INFO L158 Benchmark]: Witness Printer took 9.07ms. Allocated memory is still 211.8MB. Free memory is still 155.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:25:19,996 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: 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 1563. 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; [L1570] 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) [L1570] 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}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE191_Integer_Underflow__int_rand_sub_21_bad() [L1561] int data; [L1562] data = 0 [L1563] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1563] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1563] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1563] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1563] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1564] badStatic = 1 [L1565] 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 - 1 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 0.37ms. Allocated memory is still 138.4MB. Free memory is still 111.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1639.44ms. Allocated memory was 138.4MB in the beginning and 211.8MB in the end (delta: 73.4MB). Free memory was 98.9MB in the beginning and 161.6MB in the end (delta: -62.6MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 116.06ms. Allocated memory is still 211.8MB. Free memory was 161.6MB in the beginning and 158.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.72ms. Allocated memory is still 211.8MB. Free memory was 158.4MB in the beginning and 156.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 812.92ms. Allocated memory is still 211.8MB. Free memory was 156.3MB in the beginning and 119.6MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * CodeCheck took 901.93ms. Allocated memory is still 211.8MB. Free memory was 119.6MB in the beginning and 155.1MB in the end (delta: -35.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.07ms. Allocated memory is still 211.8MB. Free memory is still 155.1MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:25:20,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/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_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2 --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 b2b377f51454d038e6c17c51a7cb4aa7d909e95814f84e86886059618cc4346c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:25:22,890 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:25:22,964 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:25:22,996 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:25:22,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:25:22,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:25:22,999 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:25:22,999 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:25:23,000 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:25:23,001 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:25:23,002 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:25:23,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:25:23,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:25:23,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:25:23,005 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:25:23,005 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:25:23,006 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:25:23,007 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:25:23,007 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:25:23,008 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:25:23,009 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:25:23,010 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:25:23,010 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:25:23,011 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:25:23,012 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:25:23,012 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:25:23,013 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:25:23,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:25:23,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:25:23,015 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:25:23,015 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:25:23,016 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:25:23,016 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:25:23,017 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:25:23,017 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:25:23,018 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:25:23,018 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_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2b377f51454d038e6c17c51a7cb4aa7d909e95814f84e86886059618cc4346c [2023-11-21 18:25:23,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:25:23,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:25:23,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:25:23,427 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:25:23,428 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:25:23,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_21_bad.i [2023-11-21 18:25:26,538 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:25:26,990 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:25:26,990 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_21_bad.i [2023-11-21 18:25:27,023 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/data/52778735b/b7dd47fb1ede4e0c87cca4208c439d9f/FLAGe964d9b92 [2023-11-21 18:25:27,037 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/data/52778735b/b7dd47fb1ede4e0c87cca4208c439d9f [2023-11-21 18:25:27,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:25:27,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:25:27,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:25:27,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:25:27,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:25:27,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:27" (1/1) ... [2023-11-21 18:25:27,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7379914e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:27, skipping insertion in model container [2023-11-21 18:25:27,051 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:27" (1/1) ... [2023-11-21 18:25:27,132 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:25:27,528 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:25:28,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:25:28,158 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:25:28,211 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:25:28,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:25:28,510 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:28,511 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:28,511 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:28,511 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:28,511 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:28,520 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:25:28,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:28 WrapperNode [2023-11-21 18:25:28,522 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:25:28,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:25:28,524 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:25:28,524 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:25:28,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:28" (1/1) ... [2023-11-21 18:25:28,615 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:28" (1/1) ... [2023-11-21 18:25:28,659 INFO L138 Inliner]: procedures = 505, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2023-11-21 18:25:28,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:25:28,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:25:28,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:25:28,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:25:28,672 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:28" (1/1) ... [2023-11-21 18:25:28,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:28" (1/1) ... [2023-11-21 18:25:28,685 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:28" (1/1) ... [2023-11-21 18:25:28,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:28" (1/1) ... [2023-11-21 18:25:28,700 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:28" (1/1) ... [2023-11-21 18:25:28,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:28" (1/1) ... [2023-11-21 18:25:28,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:28" (1/1) ... [2023-11-21 18:25:28,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:28" (1/1) ... [2023-11-21 18:25:28,734 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:25:28,735 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:25:28,735 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:25:28,736 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:25:28,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:28" (1/1) ... [2023-11-21 18:25:28,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:25:28,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:25:28,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:25:28,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:25:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:25:28,837 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:25:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:25:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:25:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:25:28,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:25:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:25:29,041 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:25:29,044 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:25:29,219 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:25:29,328 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:25:29,330 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:25:29,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:29 BoogieIcfgContainer [2023-11-21 18:25:29,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:25:29,335 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:25:29,335 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:25:29,345 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:25:29,345 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:29" (1/1) ... [2023-11-21 18:25:29,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:25:29,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:29,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-11-21 18:25:29,433 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-21 18:25:29,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:25:29,437 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:29,438 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:25:29,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:25:29,441 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:25:29,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:25:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:29,669 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:25:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:29,838 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:25:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:29,886 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:25:29,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:25:29,894 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:25:29,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:25:29 ImpRootNode [2023-11-21 18:25:29,930 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:25:29,932 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:25:29,932 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:25:29,932 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:25:29,933 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:29" (3/4) ... [2023-11-21 18:25:29,934 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 18:25:30,019 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:25:30,020 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:25:30,021 INFO L158 Benchmark]: Toolchain (without parser) took 2979.37ms. Allocated memory is still 104.9MB. Free memory was 76.9MB in the beginning and 76.1MB in the end (delta: 800.1kB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. [2023-11-21 18:25:30,021 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 71.3MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:25:30,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1478.92ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 36.3MB in the end (delta: 40.3MB). Peak memory consumption was 42.0MB. Max. memory is 16.1GB. [2023-11-21 18:25:30,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 137.68ms. Allocated memory is still 104.9MB. Free memory was 36.3MB in the beginning and 76.2MB in the end (delta: -39.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2023-11-21 18:25:30,023 INFO L158 Benchmark]: Boogie Preprocessor took 72.94ms. Allocated memory is still 104.9MB. Free memory was 76.2MB in the beginning and 74.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:25:30,023 INFO L158 Benchmark]: RCFGBuilder took 599.14ms. Allocated memory is still 104.9MB. Free memory was 74.1MB in the beginning and 55.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 18:25:30,024 INFO L158 Benchmark]: CodeCheck took 594.88ms. Allocated memory is still 104.9MB. Free memory was 55.2MB in the beginning and 39.7MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 18:25:30,024 INFO L158 Benchmark]: Witness Printer took 88.29ms. Allocated memory is still 104.9MB. Free memory was 39.7MB in the beginning and 76.1MB in the end (delta: -36.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:25:30,027 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: 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; [L1570] 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) [L1570] 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}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE191_Integer_Underflow__int_rand_sub_21_bad() [L1561] int data; [L1562] data = 0 [L1563] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1563] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1563] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1564] badStatic = 1 [L1565] 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 - 1 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 0.40ms. Allocated memory is still 71.3MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1478.92ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 36.3MB in the end (delta: 40.3MB). Peak memory consumption was 42.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 137.68ms. Allocated memory is still 104.9MB. Free memory was 36.3MB in the beginning and 76.2MB in the end (delta: -39.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.94ms. Allocated memory is still 104.9MB. Free memory was 76.2MB in the beginning and 74.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 599.14ms. Allocated memory is still 104.9MB. Free memory was 74.1MB in the beginning and 55.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 594.88ms. Allocated memory is still 104.9MB. Free memory was 55.2MB in the beginning and 39.7MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 88.29ms. Allocated memory is still 104.9MB. Free memory was 39.7MB in the beginning and 76.1MB in the end (delta: -36.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 18:25:30,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4245303-6dd0-4a98-961d-ec974623bf2c/bin/ukojak-verify-i0I2FZA1j2/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)