./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_54_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 316774e4a8e293c2c0b70ac26e94e33d5e8afc33717b38a6ad3763b9517d337b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:27:06,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:27:06,153 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:27:06,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:27:06,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:27:06,189 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:27:06,190 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:27:06,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:27:06,192 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:27:06,193 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:27:06,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:27:06,195 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:27:06,195 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:27:06,196 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:27:06,197 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:27:06,197 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:27:06,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:27:06,199 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:27:06,199 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:27:06,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:27:06,201 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:27:06,202 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:27:06,203 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:27:06,203 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:27:06,204 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:27:06,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:27:06,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:27:06,206 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:27:06,207 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:27:06,207 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:27:06,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:27:06,208 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:27:06,209 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_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 316774e4a8e293c2c0b70ac26e94e33d5e8afc33717b38a6ad3763b9517d337b [2023-11-23 20:27:06,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:27:06,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:27:06,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:27:06,594 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:27:06,596 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:27:06,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_54_bad.i [2023-11-23 20:27:09,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:27:10,233 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:27:10,234 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_54_bad.i [2023-11-23 20:27:10,262 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/data/dfcbbf509/6af216c3421d44a189a7d286cd305a75/FLAGe6cd79880 [2023-11-23 20:27:10,278 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/data/dfcbbf509/6af216c3421d44a189a7d286cd305a75 [2023-11-23 20:27:10,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:27:10,282 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:27:10,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:27:10,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:27:10,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:27:10,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:27:10" (1/1) ... [2023-11-23 20:27:10,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57e08111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:10, skipping insertion in model container [2023-11-23 20:27:10,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:27:10" (1/1) ... [2023-11-23 20:27:10,352 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:27:10,795 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:27:11,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:27:11,442 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:27:11,485 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:27:11,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:27:11,771 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:27:11,771 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:27:11,772 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:27:11,772 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:27:11,772 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:27:11,780 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:27:11,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:11 WrapperNode [2023-11-23 20:27:11,781 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:27:11,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:27:11,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:27:11,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:27:11,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:11" (1/1) ... [2023-11-23 20:27:11,911 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:11" (1/1) ... [2023-11-23 20:27:11,963 INFO L138 Inliner]: procedures = 503, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 96 [2023-11-23 20:27:11,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:27:11,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:27:11,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:27:11,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:27:11,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:11" (1/1) ... [2023-11-23 20:27:11,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:11" (1/1) ... [2023-11-23 20:27:11,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:11" (1/1) ... [2023-11-23 20:27:12,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:11" (1/1) ... [2023-11-23 20:27:12,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:11" (1/1) ... [2023-11-23 20:27:12,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:11" (1/1) ... [2023-11-23 20:27:12,031 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:11" (1/1) ... [2023-11-23 20:27:12,033 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:11" (1/1) ... [2023-11-23 20:27:12,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:27:12,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:27:12,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:27:12,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:27:12,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:11" (1/1) ... [2023-11-23 20:27:12,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:27:12,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:27:12,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:27:12,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:27:12,161 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:27:12,162 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:27:12,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:27:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:27:12,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:27:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:27:12,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:27:12,351 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:27:12,353 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:27:12,587 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:27:12,834 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:27:12,835 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:27:12,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:27:12 BoogieIcfgContainer [2023-11-23 20:27:12,837 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:27:12,838 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:27:12,838 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:27:12,848 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:27:12,848 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:27:12" (1/1) ... [2023-11-23 20:27:12,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:27:12,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:27:12,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-23 20:27:12,922 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-23 20:27:12,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:27:12,926 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:27:12,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:27:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:27:13,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:27:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:27:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:27:13,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:27:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:27:13,612 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:27:13,644 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post111 could not be translated [2023-11-23 20:27:13,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:27:13 ImpRootNode [2023-11-23 20:27:13,649 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:27:13,650 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:27:13,650 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:27:13,650 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:27:13,651 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:27:12" (3/4) ... [2023-11-23 20:27:13,653 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:27:13,654 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:27:13,655 INFO L158 Benchmark]: Toolchain (without parser) took 3372.60ms. Allocated memory is still 169.9MB. Free memory was 139.1MB in the beginning and 118.8MB in the end (delta: 20.3MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2023-11-23 20:27:13,655 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:27:13,656 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1497.45ms. Allocated memory is still 169.9MB. Free memory was 139.1MB in the beginning and 74.9MB in the end (delta: 64.2MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-23 20:27:13,657 INFO L158 Benchmark]: Boogie Procedure Inliner took 185.70ms. Allocated memory is still 169.9MB. Free memory was 74.9MB in the beginning and 135.7MB in the end (delta: -60.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:27:13,657 INFO L158 Benchmark]: Boogie Preprocessor took 67.97ms. Allocated memory is still 169.9MB. Free memory was 135.7MB in the beginning and 133.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:27:13,658 INFO L158 Benchmark]: RCFGBuilder took 799.92ms. Allocated memory is still 169.9MB. Free memory was 133.7MB in the beginning and 95.9MB in the end (delta: 37.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-23 20:27:13,659 INFO L158 Benchmark]: CodeCheck took 811.48ms. Allocated memory is still 169.9MB. Free memory was 95.9MB in the beginning and 118.8MB in the end (delta: -22.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:27:13,659 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 169.9MB. Free memory is still 118.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:27:13,664 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: 0.7s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1553. 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); [L1559] 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) [L1559] 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}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_postdec_54_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1553] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_postdec_54b_badSink(data) [L1567] CALL CWE191_Integer_Underflow__int_rand_postdec_54c_badSink(data) [L1572] CALL CWE191_Integer_Underflow__int_rand_postdec_54d_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_rand_postdec_54e_badSink(data) [L1582] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, 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 0.31ms. Allocated memory is still 125.8MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1497.45ms. Allocated memory is still 169.9MB. Free memory was 139.1MB in the beginning and 74.9MB in the end (delta: 64.2MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 185.70ms. Allocated memory is still 169.9MB. Free memory was 74.9MB in the beginning and 135.7MB in the end (delta: -60.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.97ms. Allocated memory is still 169.9MB. Free memory was 135.7MB in the beginning and 133.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 799.92ms. Allocated memory is still 169.9MB. Free memory was 133.7MB in the beginning and 95.9MB in the end (delta: 37.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * CodeCheck took 811.48ms. Allocated memory is still 169.9MB. Free memory was 95.9MB in the beginning and 118.8MB in the end (delta: -22.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 169.9MB. Free memory is still 118.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post111 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:27:13,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 316774e4a8e293c2c0b70ac26e94e33d5e8afc33717b38a6ad3763b9517d337b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:27:16,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:27:16,544 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:27:16,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:27:16,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:27:16,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:27:16,579 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:27:16,579 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:27:16,580 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:27:16,580 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:27:16,581 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:27:16,581 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:27:16,582 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:27:16,583 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:27:16,583 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:27:16,584 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:27:16,584 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:27:16,585 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:27:16,586 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:27:16,586 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:27:16,587 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:27:16,587 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:27:16,588 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:27:16,589 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:27:16,589 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:27:16,589 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:27:16,590 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:27:16,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:27:16,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:27:16,592 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:27:16,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:27:16,592 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:27:16,593 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:27:16,593 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:27:16,594 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:27:16,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:27:16,594 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_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 316774e4a8e293c2c0b70ac26e94e33d5e8afc33717b38a6ad3763b9517d337b [2023-11-23 20:27:16,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:27:16,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:27:16,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:27:16,991 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:27:16,992 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:27:16,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_54_bad.i [2023-11-23 20:27:20,304 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:27:20,766 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:27:20,767 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_54_bad.i [2023-11-23 20:27:20,803 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/data/e9af59445/020910b1ffad4786b8470886ffebcefd/FLAG7fb3a9457 [2023-11-23 20:27:20,822 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/data/e9af59445/020910b1ffad4786b8470886ffebcefd [2023-11-23 20:27:20,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:27:20,831 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:27:20,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:27:20,834 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:27:20,839 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:27:20,843 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:27:20" (1/1) ... [2023-11-23 20:27:20,844 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf8f289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:20, skipping insertion in model container [2023-11-23 20:27:20,845 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:27:20" (1/1) ... [2023-11-23 20:27:20,927 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:27:21,432 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:27:21,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:27:22,003 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:27:22,038 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:27:22,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:27:22,354 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:27:22,354 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:27:22,354 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:27:22,354 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:27:22,354 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:27:22,362 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:27:22,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:22 WrapperNode [2023-11-23 20:27:22,363 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:27:22,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:27:22,364 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:27:22,364 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:27:22,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:22" (1/1) ... [2023-11-23 20:27:22,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:22" (1/1) ... [2023-11-23 20:27:22,451 INFO L138 Inliner]: procedures = 508, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 64 [2023-11-23 20:27:22,452 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:27:22,453 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:27:22,453 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:27:22,453 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:27:22,463 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:22" (1/1) ... [2023-11-23 20:27:22,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:22" (1/1) ... [2023-11-23 20:27:22,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:22" (1/1) ... [2023-11-23 20:27:22,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:22" (1/1) ... [2023-11-23 20:27:22,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:22" (1/1) ... [2023-11-23 20:27:22,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:22" (1/1) ... [2023-11-23 20:27:22,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:22" (1/1) ... [2023-11-23 20:27:22,486 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:22" (1/1) ... [2023-11-23 20:27:22,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:27:22,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:27:22,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:27:22,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:27:22,494 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:22" (1/1) ... [2023-11-23 20:27:22,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:27:22,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:27:22,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:27:22,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:27:22,580 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:27:22,581 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:27:22,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:27:22,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:27:22,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:27:22,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:27:22,582 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:27:22,759 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:27:22,762 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:27:22,941 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:27:23,032 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:27:23,032 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:27:23,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:27:23 BoogieIcfgContainer [2023-11-23 20:27:23,034 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:27:23,035 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:27:23,035 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:27:23,046 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:27:23,046 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:27:23" (1/1) ... [2023-11-23 20:27:23,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:27:23,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:27:23,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-23 20:27:23,114 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-23 20:27:23,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:27:23,141 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:27:23,142 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:27:23,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:27:23,185 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:27:23,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:27:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:27:23,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:27:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:27:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:27:23,559 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:27:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:27:23,616 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:27:23,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:27:23,645 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:27:23,674 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post105 could not be translated [2023-11-23 20:27:23,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:27:23 ImpRootNode [2023-11-23 20:27:23,680 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:27:23,682 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:27:23,682 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:27:23,683 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:27:23,683 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:27:23" (3/4) ... [2023-11-23 20:27:23,684 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 20:27:23,701 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post105 could not be translated [2023-11-23 20:27:23,756 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:27:23,758 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:27:23,759 INFO L158 Benchmark]: Toolchain (without parser) took 2928.19ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 41.6MB in the beginning and 53.1MB in the end (delta: -11.5MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2023-11-23 20:27:23,759 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 69.2MB. Free memory is still 45.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:27:23,760 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1530.53ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 41.2MB in the beginning and 68.4MB in the end (delta: -27.2MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2023-11-23 20:27:23,760 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.00ms. Allocated memory is still 96.5MB. Free memory was 68.4MB in the beginning and 65.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:27:23,761 INFO L158 Benchmark]: Boogie Preprocessor took 39.05ms. Allocated memory is still 96.5MB. Free memory was 65.2MB in the beginning and 63.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:27:23,761 INFO L158 Benchmark]: RCFGBuilder took 541.58ms. Allocated memory is still 96.5MB. Free memory was 63.1MB in the beginning and 44.4MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 20:27:23,762 INFO L158 Benchmark]: CodeCheck took 645.23ms. Allocated memory is still 96.5MB. Free memory was 44.3MB in the beginning and 55.2MB in the end (delta: -10.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:27:23,762 INFO L158 Benchmark]: Witness Printer took 76.04ms. Allocated memory is still 96.5MB. Free memory was 55.2MB in the beginning and 53.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:27:23,771 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: 0.6s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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: 1582]: 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); [L1559] 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) [L1559] 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] [L1560] CALL CWE191_Integer_Underflow__int_rand_postdec_54_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_postdec_54b_badSink(data) [L1567] CALL CWE191_Integer_Underflow__int_rand_postdec_54c_badSink(data) [L1572] CALL CWE191_Integer_Underflow__int_rand_postdec_54d_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_rand_postdec_54e_badSink(data) [L1582] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, 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 0.68ms. Allocated memory is still 69.2MB. Free memory is still 45.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1530.53ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 41.2MB in the beginning and 68.4MB in the end (delta: -27.2MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.00ms. Allocated memory is still 96.5MB. Free memory was 68.4MB in the beginning and 65.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.05ms. Allocated memory is still 96.5MB. Free memory was 65.2MB in the beginning and 63.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 541.58ms. Allocated memory is still 96.5MB. Free memory was 63.1MB in the beginning and 44.4MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 645.23ms. Allocated memory is still 96.5MB. Free memory was 44.3MB in the beginning and 55.2MB in the end (delta: -10.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 76.04ms. Allocated memory is still 96.5MB. Free memory was 55.2MB in the beginning and 53.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post105 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post105 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-23 20:27:23,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af5dc778-b1ad-46c5-8f12-279b4536ac24/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)