./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_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_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/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_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/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_8a91d496-8442-42d0-ad81-5bd0bda45d13/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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:42:19,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:42:19,354 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:42:19,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:42:19,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:42:19,392 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:42:19,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:42:19,398 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:42:19,399 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:42:19,404 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:42:19,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:42:19,405 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:42:19,406 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:42:19,406 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:42:19,407 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:42:19,407 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:42:19,408 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:42:19,408 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:42:19,408 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:42:19,409 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:42:19,409 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:42:19,410 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:42:19,412 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:42:19,413 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:42:19,413 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:42:19,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:42:19,414 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:42:19,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:42:19,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:42:19,416 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:42:19,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:42:19,418 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:42:19,418 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_8a91d496-8442-42d0-ad81-5bd0bda45d13/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2023-11-21 18:42:19,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:42:19,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:42:19,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:42:19,738 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:42:19,738 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:42:19,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2023-11-21 18:42:23,014 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:42:23,473 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:42:23,474 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2023-11-21 18:42:23,511 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/data/29bdef195/ca65cba70e34479db022465849ad61f3/FLAG6d5f875ba [2023-11-21 18:42:23,531 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/data/29bdef195/ca65cba70e34479db022465849ad61f3 [2023-11-21 18:42:23,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:42:23,539 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:42:23,544 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:42:23,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:42:23,550 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:42:23,553 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:42:23" (1/1) ... [2023-11-21 18:42:23,554 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e7dd9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:23, skipping insertion in model container [2023-11-21 18:42:23,556 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:42:23" (1/1) ... [2023-11-21 18:42:23,672 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:42:24,099 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:42:24,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:42:24,635 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:42:24,668 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:42:24,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:42:24,960 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:42:24,960 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:42:24,960 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:42:24,961 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:42:24,961 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:42:24,970 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:42:24,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:24 WrapperNode [2023-11-21 18:42:24,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:42:24,972 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:42:24,972 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:42:24,972 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:42:24,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:24" (1/1) ... [2023-11-21 18:42:25,027 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:24" (1/1) ... [2023-11-21 18:42:25,085 INFO L138 Inliner]: procedures = 499, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 101 [2023-11-21 18:42:25,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:42:25,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:42:25,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:42:25,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:42:25,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:24" (1/1) ... [2023-11-21 18:42:25,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:24" (1/1) ... [2023-11-21 18:42:25,111 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:24" (1/1) ... [2023-11-21 18:42:25,111 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:24" (1/1) ... [2023-11-21 18:42:25,118 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:24" (1/1) ... [2023-11-21 18:42:25,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:24" (1/1) ... [2023-11-21 18:42:25,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:24" (1/1) ... [2023-11-21 18:42:25,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:24" (1/1) ... [2023-11-21 18:42:25,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:42:25,130 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:42:25,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:42:25,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:42:25,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:24" (1/1) ... [2023-11-21 18:42:25,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:42:25,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:42:25,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:42:25,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:42:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:42:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:42:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:42:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:42:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:42:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:42:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:42:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:42:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:42:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:42:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:42:25,377 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:42:25,379 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:42:25,693 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:42:25,964 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:42:25,964 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:42:25,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:25 BoogieIcfgContainer [2023-11-21 18:42:25,966 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:42:25,967 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:42:25,967 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:42:25,978 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:42:25,978 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:25" (1/1) ... [2023-11-21 18:42:25,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:42:26,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:26,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:42:26,044 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:42:26,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:42:26,049 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:26,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:42:26,480 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:42:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:42:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:42:26,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:42:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:42:26,838 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:42:26,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:42:26 ImpRootNode [2023-11-21 18:42:26,880 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:42:26,883 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:42:26,883 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:42:26,884 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:42:26,884 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:25" (3/4) ... [2023-11-21 18:42:26,890 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:42:26,891 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:42:26,893 INFO L158 Benchmark]: Toolchain (without parser) took 3353.25ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 68.5MB in the beginning and 68.8MB in the end (delta: -361.8kB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2023-11-21 18:42:26,893 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory is still 110.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:42:26,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1426.71ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 68.2MB in the beginning and 85.3MB in the end (delta: -17.1MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2023-11-21 18:42:26,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.15ms. Allocated memory is still 174.1MB. Free memory was 85.3MB in the beginning and 82.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:42:26,897 INFO L158 Benchmark]: Boogie Preprocessor took 42.41ms. Allocated memory is still 174.1MB. Free memory was 82.0MB in the beginning and 81.1MB in the end (delta: 909.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:42:26,898 INFO L158 Benchmark]: RCFGBuilder took 836.62ms. Allocated memory is still 174.1MB. Free memory was 81.1MB in the beginning and 110.9MB in the end (delta: -29.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 18:42:26,899 INFO L158 Benchmark]: CodeCheck took 912.76ms. Allocated memory is still 174.1MB. Free memory was 110.9MB in the beginning and 68.8MB in the end (delta: 42.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-21 18:42:26,900 INFO L158 Benchmark]: Witness Printer took 8.17ms. Allocated memory is still 174.1MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:42:26,910 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1562]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1556. 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); [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=14, argc=14, argv={13:16}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] EXPR *dataPtr1 = data [L1554-L1558] { int data = *dataPtr1; data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)); *dataPtr1 = data; } [L1560] EXPR \read(*dataPtr2) [L1560] int data = *dataPtr2; [L1562] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data={18407:0}, dataPtr1={18407:0}, dataPtr2={18407:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory is still 110.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1426.71ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 68.2MB in the beginning and 85.3MB in the end (delta: -17.1MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.15ms. Allocated memory is still 174.1MB. Free memory was 85.3MB in the beginning and 82.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.41ms. Allocated memory is still 174.1MB. Free memory was 82.0MB in the beginning and 81.1MB in the end (delta: 909.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 836.62ms. Allocated memory is still 174.1MB. Free memory was 81.1MB in the beginning and 110.9MB in the end (delta: -29.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 912.76ms. Allocated memory is still 174.1MB. Free memory was 110.9MB in the beginning and 68.8MB in the end (delta: 42.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 8.17ms. Allocated memory is still 174.1MB. Free memory is still 68.8MB. 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 18:42:26,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/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_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/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_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/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_8a91d496-8442-42d0-ad81-5bd0bda45d13/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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:42:29,728 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:42:29,869 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:42:29,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:42:29,934 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:42:29,935 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:42:29,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:42:29,936 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:42:29,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:42:29,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:42:29,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:42:29,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:42:29,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:42:29,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:42:29,946 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:42:29,946 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:42:29,947 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:42:29,947 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:42:29,948 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:42:29,948 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:42:29,948 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:42:29,949 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:42:29,950 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:42:29,950 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:42:29,951 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:42:29,951 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:42:29,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:42:29,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:42:29,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:42:29,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:42:29,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:42:29,955 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:42:29,955 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:42:29,955 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:42:29,956 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:42:29,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:42:29,956 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_8a91d496-8442-42d0-ad81-5bd0bda45d13/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2023-11-21 18:42:30,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:42:30,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:42:30,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:42:30,383 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:42:30,384 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:42:30,386 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2023-11-21 18:42:33,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:42:34,305 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:42:34,306 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2023-11-21 18:42:34,345 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/data/4f33203d8/474033fcdca14e859f098fc74825620b/FLAG8998c84a6 [2023-11-21 18:42:34,362 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/data/4f33203d8/474033fcdca14e859f098fc74825620b [2023-11-21 18:42:34,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:42:34,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:42:34,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:42:34,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:42:34,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:42:34,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:42:34" (1/1) ... [2023-11-21 18:42:34,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2c9839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:34, skipping insertion in model container [2023-11-21 18:42:34,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:42:34" (1/1) ... [2023-11-21 18:42:34,460 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:42:34,982 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:42:35,736 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:42:35,762 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:42:35,795 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:42:35,869 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:42:36,075 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:42:36,075 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:42:36,076 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:42:36,076 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:42:36,076 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:42:36,084 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:42:36,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:36 WrapperNode [2023-11-21 18:42:36,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:42:36,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:42:36,087 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:42:36,087 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:42:36,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:36" (1/1) ... [2023-11-21 18:42:36,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:36" (1/1) ... [2023-11-21 18:42:36,175 INFO L138 Inliner]: procedures = 504, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2023-11-21 18:42:36,176 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:42:36,176 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:42:36,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:42:36,177 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:42:36,187 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:36" (1/1) ... [2023-11-21 18:42:36,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:36" (1/1) ... [2023-11-21 18:42:36,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:36" (1/1) ... [2023-11-21 18:42:36,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:36" (1/1) ... [2023-11-21 18:42:36,217 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:36" (1/1) ... [2023-11-21 18:42:36,221 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:36" (1/1) ... [2023-11-21 18:42:36,224 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:36" (1/1) ... [2023-11-21 18:42:36,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:36" (1/1) ... [2023-11-21 18:42:36,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:42:36,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:42:36,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:42:36,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:42:36,239 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:36" (1/1) ... [2023-11-21 18:42:36,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:42:36,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:42:36,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:42:36,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:42:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:42:36,334 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:42:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:42:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:42:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:42:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:42:36,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:42:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 18:42:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:42:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 18:42:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:42:36,546 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:42:36,548 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:42:36,758 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:42:36,854 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:42:36,854 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:42:36,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:36 BoogieIcfgContainer [2023-11-21 18:42:36,856 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:42:36,857 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:42:36,858 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:42:36,881 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:42:36,882 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:36" (1/1) ... [2023-11-21 18:42:36,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:42:36,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:36,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:42:36,990 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:42:36,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:42:36,995 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:36,996 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:42:36,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:42:36,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:42:37,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:42:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:42:37,359 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:42:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:42:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:42:37,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:42:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:42:37,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-21 18:42:37,703 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:42:37,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:42:37 ImpRootNode [2023-11-21 18:42:37,733 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:42:37,733 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:42:37,734 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:42:37,734 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:42:37,735 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:36" (3/4) ... [2023-11-21 18:42:37,736 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 18:42:37,800 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:42:37,800 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:42:37,802 INFO L158 Benchmark]: Toolchain (without parser) took 3434.68ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 56.8MB in the beginning and 51.8MB in the end (delta: 5.0MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2023-11-21 18:42:37,802 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 58.7MB. Free memory is still 35.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:42:37,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1718.28ms. Allocated memory is still 83.9MB. Free memory was 56.7MB in the beginning and 33.5MB in the end (delta: 23.2MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2023-11-21 18:42:37,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.11ms. Allocated memory is still 83.9MB. Free memory was 33.5MB in the beginning and 54.7MB in the end (delta: -21.3MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2023-11-21 18:42:37,804 INFO L158 Benchmark]: Boogie Preprocessor took 55.37ms. Allocated memory is still 83.9MB. Free memory was 54.7MB in the beginning and 52.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:42:37,804 INFO L158 Benchmark]: RCFGBuilder took 624.16ms. Allocated memory is still 83.9MB. Free memory was 52.6MB in the beginning and 31.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 18:42:37,805 INFO L158 Benchmark]: CodeCheck took 875.29ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 31.7MB in the beginning and 53.9MB in the end (delta: -22.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:42:37,805 INFO L158 Benchmark]: Witness Printer took 66.54ms. Allocated memory is still 100.7MB. Free memory was 53.9MB in the beginning and 51.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:42:37,813 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1562]: 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); [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [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}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] EXPR *dataPtr1 = data [L1554-L1558] { int data = *dataPtr1; data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)); *dataPtr1 = data; } [L1560] EXPR \read(*dataPtr2) [L1560] int data = *dataPtr2; [L1562] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data={5:0}, dataPtr1={5:0}, dataPtr2={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 58.7MB. Free memory is still 35.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1718.28ms. Allocated memory is still 83.9MB. Free memory was 56.7MB in the beginning and 33.5MB in the end (delta: 23.2MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.11ms. Allocated memory is still 83.9MB. Free memory was 33.5MB in the beginning and 54.7MB in the end (delta: -21.3MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.37ms. Allocated memory is still 83.9MB. Free memory was 54.7MB in the beginning and 52.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 624.16ms. Allocated memory is still 83.9MB. Free memory was 52.6MB in the beginning and 31.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 875.29ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 31.7MB in the beginning and 53.9MB in the end (delta: -22.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 66.54ms. Allocated memory is still 100.7MB. Free memory was 53.9MB in the beginning and 51.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 18:42:37,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a91d496-8442-42d0-ad81-5bd0bda45d13/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)