./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_05_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_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/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_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_05_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/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_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/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 1b253f1f0adffc8da2e9f898696836492464bbf561b3753ca5347d36ce9d8dcd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:17:21,139 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:17:21,258 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 22:17:21,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:17:21,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:17:21,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:17:21,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:17:21,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:17:21,308 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:17:21,313 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:17:21,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:17:21,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:17:21,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:17:21,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:17:21,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:17:21,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:17:21,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:17:21,318 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:17:21,319 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:17:21,319 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:17:21,319 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:17:21,320 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:17:21,321 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:17:21,321 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:17:21,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:17:21,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:21,323 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:17:21,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:17:21,324 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:17:21,324 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:17:21,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:17:21,326 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:17:21,326 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_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b253f1f0adffc8da2e9f898696836492464bbf561b3753ca5347d36ce9d8dcd [2023-11-24 22:17:21,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:17:21,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:17:21,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:17:21,680 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:17:21,681 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:17:21,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_05_bad.i [2023-11-24 22:17:24,786 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:17:25,199 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:17:25,201 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_05_bad.i [2023-11-24 22:17:25,233 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/data/5ac3abe04/42d926e777d84dbfa903c7988b1bb48b/FLAGb2e4a8502 [2023-11-24 22:17:25,250 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/data/5ac3abe04/42d926e777d84dbfa903c7988b1bb48b [2023-11-24 22:17:25,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:17:25,257 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:17:25,260 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:25,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:17:25,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:17:25,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:25" (1/1) ... [2023-11-24 22:17:25,267 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a1a2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:25, skipping insertion in model container [2023-11-24 22:17:25,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:25" (1/1) ... [2023-11-24 22:17:25,338 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:17:26,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:26,441 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:17:26,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:26,738 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:17:26,738 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:17:26,738 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:17:26,738 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:17:26,746 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:17:26,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:26 WrapperNode [2023-11-24 22:17:26,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:26,749 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:26,749 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:17:26,749 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:17:26,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:26" (1/1) ... [2023-11-24 22:17:26,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:26" (1/1) ... [2023-11-24 22:17:26,857 INFO L138 Inliner]: procedures = 498, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2023-11-24 22:17:26,861 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:26,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:17:26,862 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:17:26,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:17:26,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:26" (1/1) ... [2023-11-24 22:17:26,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:26" (1/1) ... [2023-11-24 22:17:26,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:26" (1/1) ... [2023-11-24 22:17:26,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:26" (1/1) ... [2023-11-24 22:17:26,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:26" (1/1) ... [2023-11-24 22:17:26,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:26" (1/1) ... [2023-11-24 22:17:26,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:26" (1/1) ... [2023-11-24 22:17:26,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:26" (1/1) ... [2023-11-24 22:17:26,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:17:26,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:17:26,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:17:26,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:17:26,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:26" (1/1) ... [2023-11-24 22:17:26,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:26,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:17:26,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:17:26,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:17:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 22:17:27,003 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 22:17:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:17:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:17:27,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:17:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 22:17:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:17:27,182 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:17:27,185 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:17:27,468 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:17:27,786 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:17:27,787 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:17:27,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:27 BoogieIcfgContainer [2023-11-24 22:17:27,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:17:27,789 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:17:27,789 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:17:27,799 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:17:27,800 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:27" (1/1) ... [2023-11-24 22:17:27,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:17:27,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:27,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-11-24 22:17:27,864 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-24 22:17:27,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:17:27,869 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:27,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:28,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:17:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:28,482 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:17:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:28,536 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 22:17:28,558 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet112 [2023-11-24 22:17:28,561 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite109 could not be translated [2023-11-24 22:17:28,562 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite109 could not be translated [2023-11-24 22:17:28,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:17:28 ImpRootNode [2023-11-24 22:17:28,567 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:17:28,568 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:17:28,568 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:17:28,568 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:17:28,569 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:27" (3/4) ... [2023-11-24 22:17:28,571 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:17:28,572 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:17:28,573 INFO L158 Benchmark]: Toolchain (without parser) took 3315.51ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 94.7MB in the beginning and 124.7MB in the end (delta: -30.0MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-11-24 22:17:28,574 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:17:28,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1487.34ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 94.3MB in the beginning and 137.8MB in the end (delta: -43.5MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. [2023-11-24 22:17:28,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.23ms. Allocated memory is still 188.7MB. Free memory was 137.8MB in the beginning and 134.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:17:28,576 INFO L158 Benchmark]: Boogie Preprocessor took 66.24ms. Allocated memory is still 188.7MB. Free memory was 134.7MB in the beginning and 133.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:17:28,576 INFO L158 Benchmark]: RCFGBuilder took 860.25ms. Allocated memory is still 188.7MB. Free memory was 133.7MB in the beginning and 91.7MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-24 22:17:28,577 INFO L158 Benchmark]: CodeCheck took 777.89ms. Allocated memory is still 188.7MB. Free memory was 91.7MB in the beginning and 125.7MB in the end (delta: -34.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:17:28,578 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 188.7MB. Free memory was 125.7MB in the beginning and 124.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:17:28,581 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1561]: 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 1570, overapproximation of bitwiseOr at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int staticTrue = 1; [L1549] static int staticFalse = 0; [L1570] 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}, staticFalse=0, staticTrue=1] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={14:13}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1571] CALL CWE191_Integer_Underflow__int_rand_predec_05_bad() [L1552] int data; [L1553] data = 0 [L1554] COND TRUE \read(staticTrue) [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1558] COND TRUE \read(staticTrue) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1561] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1487.34ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 94.3MB in the beginning and 137.8MB in the end (delta: -43.5MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.23ms. Allocated memory is still 188.7MB. Free memory was 137.8MB in the beginning and 134.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.24ms. Allocated memory is still 188.7MB. Free memory was 134.7MB in the beginning and 133.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 860.25ms. Allocated memory is still 188.7MB. Free memory was 133.7MB in the beginning and 91.7MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * CodeCheck took 777.89ms. Allocated memory is still 188.7MB. Free memory was 91.7MB in the beginning and 125.7MB in the end (delta: -34.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 188.7MB. Free memory was 125.7MB in the beginning and 124.7MB in the end (delta: 1.1MB). 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: unknown boogie variable #t~nondet112 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite109 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite109 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 [2023-11-24 22:17:28,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/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_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/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_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_05_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/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_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/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 1b253f1f0adffc8da2e9f898696836492464bbf561b3753ca5347d36ce9d8dcd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:17:31,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:17:31,227 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-24 22:17:31,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:17:31,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:17:31,289 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:17:31,290 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:17:31,290 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:17:31,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:17:31,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:17:31,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:17:31,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:17:31,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:17:31,299 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:17:31,299 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:17:31,300 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:17:31,300 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:17:31,300 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:17:31,301 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:17:31,301 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:17:31,301 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:17:31,302 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:17:31,303 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:17:31,303 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:17:31,303 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:31,304 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:17:31,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:17:31,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:31,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:17:31,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:17:31,307 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:17:31,307 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:17:31,307 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:31,307 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:17:31,308 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:17:31,308 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:17:31,308 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_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b253f1f0adffc8da2e9f898696836492464bbf561b3753ca5347d36ce9d8dcd [2023-11-24 22:17:31,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:17:31,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:17:31,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:17:31,703 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:17:31,706 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:17:31,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_05_bad.i [2023-11-24 22:17:34,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:17:35,320 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:17:35,320 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_05_bad.i [2023-11-24 22:17:35,350 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/data/49febbeb2/9ac7e7b779ae4c86a46ca8381b193f3a/FLAG1aeb008fe [2023-11-24 22:17:35,371 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/data/49febbeb2/9ac7e7b779ae4c86a46ca8381b193f3a [2023-11-24 22:17:35,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:17:35,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:17:35,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:35,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:17:35,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:17:35,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:35" (1/1) ... [2023-11-24 22:17:35,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34235be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:35, skipping insertion in model container [2023-11-24 22:17:35,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:35" (1/1) ... [2023-11-24 22:17:35,459 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:17:36,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:36,731 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:17:36,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:37,025 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:17:37,025 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:17:37,026 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:17:37,026 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:17:37,034 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:17:37,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:37 WrapperNode [2023-11-24 22:17:37,035 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:37,036 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:37,036 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:17:37,036 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:17:37,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:37" (1/1) ... [2023-11-24 22:17:37,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:37" (1/1) ... [2023-11-24 22:17:37,102 INFO L138 Inliner]: procedures = 503, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2023-11-24 22:17:37,103 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:37,103 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:17:37,104 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:17:37,104 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:17:37,113 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:37" (1/1) ... [2023-11-24 22:17:37,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:37" (1/1) ... [2023-11-24 22:17:37,138 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:37" (1/1) ... [2023-11-24 22:17:37,138 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:37" (1/1) ... [2023-11-24 22:17:37,148 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:37" (1/1) ... [2023-11-24 22:17:37,150 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:37" (1/1) ... [2023-11-24 22:17:37,169 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:37" (1/1) ... [2023-11-24 22:17:37,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:37" (1/1) ... [2023-11-24 22:17:37,175 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:17:37,176 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:17:37,177 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:17:37,177 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:17:37,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:37" (1/1) ... [2023-11-24 22:17:37,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:37,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:17:37,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:17:37,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:17:37,286 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 22:17:37,286 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 22:17:37,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:17:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:17:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:17:37,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:17:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 22:17:37,456 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:17:37,459 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:17:37,678 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:17:37,780 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:17:37,780 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:17:37,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:37 BoogieIcfgContainer [2023-11-24 22:17:37,782 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:17:37,783 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:17:37,783 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:17:37,793 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:17:37,793 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:37" (1/1) ... [2023-11-24 22:17:37,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:17:37,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:37,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-11-24 22:17:37,858 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-24 22:17:37,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:17:37,863 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:37,863 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:37,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:17:37,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:17:37,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:17:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:38,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:17:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:38,247 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:17:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:38,293 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:17:38,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:17:38,301 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 22:17:38,330 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet106 [2023-11-24 22:17:38,334 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated [2023-11-24 22:17:38,335 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated [2023-11-24 22:17:38,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:17:38 ImpRootNode [2023-11-24 22:17:38,341 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:17:38,343 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:17:38,343 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:17:38,344 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:17:38,344 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:37" (3/4) ... [2023-11-24 22:17:38,346 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:17:38,347 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:17:38,348 INFO L158 Benchmark]: Toolchain (without parser) took 2969.59ms. Allocated memory is still 113.2MB. Free memory was 85.9MB in the beginning and 66.4MB in the end (delta: 19.5MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-11-24 22:17:38,349 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 69.2MB. Free memory is still 46.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:17:38,350 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1651.01ms. Allocated memory is still 113.2MB. Free memory was 85.9MB in the beginning and 74.0MB in the end (delta: 11.9MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2023-11-24 22:17:38,351 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.12ms. Allocated memory is still 113.2MB. Free memory was 74.0MB in the beginning and 70.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:17:38,352 INFO L158 Benchmark]: Boogie Preprocessor took 72.22ms. Allocated memory is still 113.2MB. Free memory was 70.8MB in the beginning and 68.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:17:38,353 INFO L158 Benchmark]: RCFGBuilder took 605.88ms. Allocated memory is still 113.2MB. Free memory was 68.7MB in the beginning and 83.0MB in the end (delta: -14.3MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2023-11-24 22:17:38,354 INFO L158 Benchmark]: CodeCheck took 558.34ms. Allocated memory is still 113.2MB. Free memory was 83.0MB in the beginning and 67.0MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 22:17:38,354 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 113.2MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:17:38,363 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1561]: 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 1570. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int staticTrue = 1; [L1549] static int staticFalse = 0; [L1570] 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}, staticFalse=0, staticTrue=1] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1571] CALL CWE191_Integer_Underflow__int_rand_predec_05_bad() [L1552] int data; [L1553] data = 0 [L1554] COND TRUE \read(staticTrue) [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1558] COND TRUE \read(staticTrue) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1561] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 69.2MB. Free memory is still 46.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1651.01ms. Allocated memory is still 113.2MB. Free memory was 85.9MB in the beginning and 74.0MB in the end (delta: 11.9MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.12ms. Allocated memory is still 113.2MB. Free memory was 74.0MB in the beginning and 70.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.22ms. Allocated memory is still 113.2MB. Free memory was 70.8MB in the beginning and 68.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 605.88ms. Allocated memory is still 113.2MB. Free memory was 68.7MB in the beginning and 83.0MB in the end (delta: -14.3MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * CodeCheck took 558.34ms. Allocated memory is still 113.2MB. Free memory was 83.0MB in the beginning and 67.0MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 113.2MB. Free memory is still 66.4MB. 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~nondet106 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite103 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 [2023-11-24 22:17:38,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e739de2-16a6-4f72-9ccb-cbb784ce46e5/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