./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi --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 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:58:08,285 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:58:08,434 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 22:58:08,442 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:58:08,443 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:58:08,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:58:08,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:58:08,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:58:08,484 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:58:08,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:58:08,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:58:08,491 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:58:08,491 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:58:08,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:58:08,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:58:08,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:58:08,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:58:08,495 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:58:08,495 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:58:08,496 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:58:08,497 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:58:08,498 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:58:08,498 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:58:08,499 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:58:08,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:58:08,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:58:08,500 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:58:08,501 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:58:08,501 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:58:08,502 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:58:08,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:58:08,504 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:58:08,504 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_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d [2023-11-24 22:58:08,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:58:08,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:58:08,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:58:08,922 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:58:08,922 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:58:08,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-24 22:58:12,065 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:58:12,561 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:58:12,566 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-24 22:58:12,606 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/data/c7c62dfa2/f163929c54e64cf6b750481e16278435/FLAG24f34a1f2 [2023-11-24 22:58:12,631 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/data/c7c62dfa2/f163929c54e64cf6b750481e16278435 [2023-11-24 22:58:12,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:58:12,639 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:58:12,640 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:58:12,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:58:12,649 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:58:12,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:58:12" (1/1) ... [2023-11-24 22:58:12,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e277c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:12, skipping insertion in model container [2023-11-24 22:58:12,653 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:58:12" (1/1) ... [2023-11-24 22:58:12,742 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:58:14,030 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:58:14,045 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:58:14,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:58:14,312 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:58:14,312 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:58:14,313 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:58:14,313 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:58:14,321 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:58:14,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:14 WrapperNode [2023-11-24 22:58:14,322 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:58:14,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:58:14,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:58:14,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:58:14,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:14" (1/1) ... [2023-11-24 22:58:14,363 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:14" (1/1) ... [2023-11-24 22:58:14,409 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 94 [2023-11-24 22:58:14,410 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:58:14,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:58:14,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:58:14,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:58:14,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:14" (1/1) ... [2023-11-24 22:58:14,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:14" (1/1) ... [2023-11-24 22:58:14,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:14" (1/1) ... [2023-11-24 22:58:14,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:14" (1/1) ... [2023-11-24 22:58:14,431 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:14" (1/1) ... [2023-11-24 22:58:14,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:14" (1/1) ... [2023-11-24 22:58:14,436 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:14" (1/1) ... [2023-11-24 22:58:14,438 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:14" (1/1) ... [2023-11-24 22:58:14,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:58:14,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:58:14,442 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:58:14,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:58:14,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:14" (1/1) ... [2023-11-24 22:58:14,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:58:14,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:58:14,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:58:14,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:58:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 22:58:14,540 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 22:58:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:58:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:58:14,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:58:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 22:58:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:58:14,696 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:58:14,698 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:58:14,927 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:58:15,206 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:58:15,206 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:58:15,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:58:15 BoogieIcfgContainer [2023-11-24 22:58:15,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:58:15,209 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:58:15,210 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:58:15,221 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:58:15,222 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:58:15" (1/1) ... [2023-11-24 22:58:15,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:58:15,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:15,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-24 22:58:15,288 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-24 22:58:15,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:58:15,293 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:15,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:58:15,744 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:58:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:58:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:58:16,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:58:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:58:16,171 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 22:58:16,203 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet111 [2023-11-24 22:58:16,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:58:16 ImpRootNode [2023-11-24 22:58:16,211 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:58:16,215 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:58:16,215 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:58:16,215 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:58:16,216 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:58:15" (3/4) ... [2023-11-24 22:58:16,224 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:58:16,226 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:58:16,228 INFO L158 Benchmark]: Toolchain (without parser) took 3587.71ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 97.1MB in the beginning and 81.0MB in the end (delta: 16.0MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. [2023-11-24 22:58:16,228 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:58:16,229 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1682.11ms. Allocated memory is still 134.2MB. Free memory was 97.1MB in the beginning and 79.5MB in the end (delta: 17.5MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2023-11-24 22:58:16,231 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.90ms. Allocated memory is still 134.2MB. Free memory was 79.5MB in the beginning and 76.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:58:16,237 INFO L158 Benchmark]: Boogie Preprocessor took 31.08ms. Allocated memory is still 134.2MB. Free memory was 76.6MB in the beginning and 74.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:58:16,238 INFO L158 Benchmark]: RCFGBuilder took 766.49ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 74.6MB in the beginning and 124.0MB in the end (delta: -49.5MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2023-11-24 22:58:16,239 INFO L158 Benchmark]: CodeCheck took 1002.99ms. Allocated memory is still 165.7MB. Free memory was 124.0MB in the beginning and 81.9MB in the end (delta: 42.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-24 22:58:16,240 INFO L158 Benchmark]: Witness Printer took 11.24ms. Allocated memory is still 165.7MB. Free memory was 81.9MB in the beginning and 81.0MB in the end (delta: 832.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:58:16,251 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: 0.9s, 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: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1559, 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)=12, argc=12, argv={13:14}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_51_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_predec_51b_badSink(data) [L1567] --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 0.26ms. Allocated memory is still 111.1MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1682.11ms. Allocated memory is still 134.2MB. Free memory was 97.1MB in the beginning and 79.5MB in the end (delta: 17.5MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.90ms. Allocated memory is still 134.2MB. Free memory was 79.5MB in the beginning and 76.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.08ms. Allocated memory is still 134.2MB. Free memory was 76.6MB in the beginning and 74.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 766.49ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 74.6MB in the beginning and 124.0MB in the end (delta: -49.5MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * CodeCheck took 1002.99ms. Allocated memory is still 165.7MB. Free memory was 124.0MB in the beginning and 81.9MB in the end (delta: 42.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 11.24ms. Allocated memory is still 165.7MB. Free memory was 81.9MB in the beginning and 81.0MB in the end (delta: 832.5kB). 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: unknown boogie variable #t~nondet111 - 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 [2023-11-24 22:58:16,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi --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 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:58:19,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:58:19,330 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-24 22:58:19,391 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:58:19,392 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:58:19,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:58:19,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:58:19,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:58:19,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:58:19,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:58:19,401 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:58:19,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:58:19,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:58:19,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:58:19,404 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:58:19,405 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:58:19,405 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:58:19,406 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:58:19,406 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:58:19,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:58:19,408 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:58:19,409 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:58:19,409 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:58:19,410 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:58:19,410 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:19,410 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:58:19,411 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:58:19,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:58:19,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:58:19,412 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:58:19,413 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:58:19,414 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:58:19,414 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:19,414 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:58:19,415 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:58:19,415 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:58:19,415 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_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d [2023-11-24 22:58:19,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:58:19,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:58:19,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:58:19,835 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:58:19,835 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:58:19,837 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-24 22:58:23,119 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:58:23,625 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:58:23,625 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-24 22:58:23,671 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/data/4327577d0/7931b9af10ad4bd68ce57db11a7c7c32/FLAGff3f8b01c [2023-11-24 22:58:23,697 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/data/4327577d0/7931b9af10ad4bd68ce57db11a7c7c32 [2023-11-24 22:58:23,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:58:23,706 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:58:23,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:58:23,714 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:58:23,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:58:23,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:58:23" (1/1) ... [2023-11-24 22:58:23,721 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a3f75bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:23, skipping insertion in model container [2023-11-24 22:58:23,722 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:58:23" (1/1) ... [2023-11-24 22:58:23,811 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:58:25,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:58:25,169 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:58:25,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:58:25,440 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:58:25,440 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:58:25,440 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:58:25,441 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:58:25,449 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:58:25,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:25 WrapperNode [2023-11-24 22:58:25,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:58:25,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:58:25,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:58:25,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:58:25,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:25" (1/1) ... [2023-11-24 22:58:25,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:25" (1/1) ... [2023-11-24 22:58:25,532 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2023-11-24 22:58:25,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:58:25,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:58:25,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:58:25,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:58:25,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:25" (1/1) ... [2023-11-24 22:58:25,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:25" (1/1) ... [2023-11-24 22:58:25,549 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:25" (1/1) ... [2023-11-24 22:58:25,549 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:25" (1/1) ... [2023-11-24 22:58:25,561 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:25" (1/1) ... [2023-11-24 22:58:25,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:25" (1/1) ... [2023-11-24 22:58:25,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:25" (1/1) ... [2023-11-24 22:58:25,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:25" (1/1) ... [2023-11-24 22:58:25,573 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:58:25,574 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:58:25,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:58:25,575 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:58:25,576 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:25" (1/1) ... [2023-11-24 22:58:25,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:58:25,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:58:25,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:58:25,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:58:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 22:58:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 22:58:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:58:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:58:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:58:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:58:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 22:58:25,852 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:58:25,854 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:58:26,091 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:58:26,218 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:58:26,222 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:58:26,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:58:26 BoogieIcfgContainer [2023-11-24 22:58:26,224 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:58:26,225 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:58:26,225 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:58:26,237 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:58:26,239 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:58:26" (1/1) ... [2023-11-24 22:58:26,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:58:26,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:26,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-24 22:58:26,341 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-24 22:58:26,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:58:26,346 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:26,347 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:26,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:26,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:26,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:58:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:58:26,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:58:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:58:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:58:26,785 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:58:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:58:26,845 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:58:26,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:26,854 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 22:58:26,883 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet105 [2023-11-24 22:58:26,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:58:26 ImpRootNode [2023-11-24 22:58:26,891 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:58:26,893 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:58:26,893 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:58:26,893 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:58:26,894 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:58:26" (3/4) ... [2023-11-24 22:58:26,896 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:58:26,897 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:58:26,898 INFO L158 Benchmark]: Toolchain (without parser) took 3192.08ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 50.0MB in the beginning and 40.4MB in the end (delta: 9.7MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2023-11-24 22:58:26,899 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 58.7MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:58:26,900 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1737.42ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 49.9MB in the beginning and 56.3MB in the end (delta: -6.4MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2023-11-24 22:58:26,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.00ms. Allocated memory is still 94.4MB. Free memory was 56.3MB in the beginning and 53.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:58:26,902 INFO L158 Benchmark]: Boogie Preprocessor took 40.58ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 51.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:58:26,904 INFO L158 Benchmark]: RCFGBuilder took 649.97ms. Allocated memory is still 94.4MB. Free memory was 51.2MB in the beginning and 56.5MB in the end (delta: -5.3MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2023-11-24 22:58:26,905 INFO L158 Benchmark]: CodeCheck took 665.46ms. Allocated memory is still 94.4MB. Free memory was 56.5MB in the beginning and 40.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 22:58:26,905 INFO L158 Benchmark]: Witness Printer took 4.72ms. Allocated memory is still 94.4MB. Free memory was 40.4MB in the beginning and 40.4MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:58:26,917 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 - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1559. 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)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_51_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_predec_51b_badSink(data) [L1567] --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 0.25ms. Allocated memory is still 58.7MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1737.42ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 49.9MB in the beginning and 56.3MB in the end (delta: -6.4MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.00ms. Allocated memory is still 94.4MB. Free memory was 56.3MB in the beginning and 53.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.58ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 51.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 649.97ms. Allocated memory is still 94.4MB. Free memory was 51.2MB in the beginning and 56.5MB in the end (delta: -5.3MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * CodeCheck took 665.46ms. Allocated memory is still 94.4MB. Free memory was 56.5MB in the beginning and 40.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.72ms. Allocated memory is still 94.4MB. Free memory was 40.4MB in the beginning and 40.4MB in the end (delta: 2.6kB). 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: unknown boogie variable #t~nondet105 - 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 [2023-11-24 22:58:26,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c8e-2001-4dbf-ab88-9f8ecb3391a3/bin/ukojak-verify-afCqCEvfdi/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 Result: UNKNOWN: Overapproximated counterexample