./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 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_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/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_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/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_4c62dcd5-2804-4d31-b82a-cc1d143955a0/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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:05:52,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:05:52,695 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 23:05:52,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:05:52,707 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:05:52,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:05:52,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:05:52,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:05:52,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:05:52,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:05:52,761 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:05:52,761 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:05:52,762 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:05:52,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:05:52,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:05:52,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:05:52,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:05:52,765 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:05:52,766 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:05:52,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:05:52,767 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:05:52,768 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:05:52,768 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:05:52,769 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:05:52,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:05:52,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:05:52,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:05:52,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:05:52,773 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:05:52,773 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:05:52,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:05:52,775 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:05:52,775 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_4c62dcd5-2804-4d31-b82a-cc1d143955a0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2023-11-24 23:05:53,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:05:53,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:05:53,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:05:53,079 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:05:53,080 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:05:53,082 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2023-11-24 23:05:56,407 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:05:56,918 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:05:56,919 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2023-11-24 23:05:56,947 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/data/a27bf1661/e68649d16d184e55b39205a6958cb407/FLAGc21f64420 [2023-11-24 23:05:56,963 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/data/a27bf1661/e68649d16d184e55b39205a6958cb407 [2023-11-24 23:05:56,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:05:56,968 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:05:56,969 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:05:56,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:05:56,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:05:56,976 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:05:56" (1/1) ... [2023-11-24 23:05:56,977 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@704fb949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:05:56, skipping insertion in model container [2023-11-24 23:05:56,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:05:56" (1/1) ... [2023-11-24 23:05:57,074 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:05:58,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:05:58,250 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:05:58,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:05:58,614 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:05:58,615 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:05:58,615 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:05:58,615 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:05:58,625 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:05:58,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:05:58 WrapperNode [2023-11-24 23:05:58,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:05:58,628 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:05:58,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:05:58,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:05:58,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:05:58" (1/1) ... [2023-11-24 23:05:58,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:05:58" (1/1) ... [2023-11-24 23:05:58,718 INFO L138 Inliner]: procedures = 498, calls = 61, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2023-11-24 23:05:58,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:05:58,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:05:58,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:05:58,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:05:58,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:05:58" (1/1) ... [2023-11-24 23:05:58,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:05:58" (1/1) ... [2023-11-24 23:05:58,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:05:58" (1/1) ... [2023-11-24 23:05:58,739 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:05:58" (1/1) ... [2023-11-24 23:05:58,746 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:05:58" (1/1) ... [2023-11-24 23:05:58,749 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:05:58" (1/1) ... [2023-11-24 23:05:58,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:05:58" (1/1) ... [2023-11-24 23:05:58,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:05:58" (1/1) ... [2023-11-24 23:05:58,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:05:58,759 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:05:58,760 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:05:58,760 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:05:58,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:05:58" (1/1) ... [2023-11-24 23:05:58,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:05:58,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:05:58,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:05:58,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:05:58,855 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:05:58,855 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:05:58,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:05:58,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:05:58,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:05:58,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:05:58,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:05:58,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:05:58,856 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:05:58,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:05:58,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:05:59,033 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:05:59,036 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:05:59,310 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:05:59,547 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:05:59,548 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:05:59,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:05:59 BoogieIcfgContainer [2023-11-24 23:05:59,550 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:05:59,551 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:05:59,551 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:05:59,562 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:05:59,562 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:05:59" (1/1) ... [2023-11-24 23:05:59,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:05:59,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:59,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-24 23:05:59,622 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-24 23:05:59,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:05:59,626 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:59,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:06:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:06:00,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:06:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:06:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:06:00,329 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:06:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:06:00,406 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 23:06:00,437 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet114 [2023-11-24 23:06:00,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:06:00 ImpRootNode [2023-11-24 23:06:00,446 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:06:00,450 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:06:00,451 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:06:00,451 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:06:00,452 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:05:59" (3/4) ... [2023-11-24 23:06:00,457 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:06:00,459 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:06:00,461 INFO L158 Benchmark]: Toolchain (without parser) took 3492.09ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 97.7MB in the beginning and 110.9MB in the end (delta: -13.2MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2023-11-24 23:06:00,461 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 146.8MB. Free memory was 96.4MB in the beginning and 96.3MB in the end (delta: 42.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:06:00,462 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1657.44ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 97.7MB in the beginning and 128.4MB in the end (delta: -30.7MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2023-11-24 23:06:00,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.81ms. Allocated memory is still 184.5MB. Free memory was 128.4MB in the beginning and 125.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:06:00,465 INFO L158 Benchmark]: Boogie Preprocessor took 34.44ms. Allocated memory is still 184.5MB. Free memory was 125.3MB in the beginning and 123.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:06:00,466 INFO L158 Benchmark]: RCFGBuilder took 790.60ms. Allocated memory is still 184.5MB. Free memory was 123.1MB in the beginning and 84.4MB in the end (delta: 38.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-24 23:06:00,467 INFO L158 Benchmark]: CodeCheck took 896.18ms. Allocated memory is still 184.5MB. Free memory was 84.4MB in the beginning and 110.9MB in the end (delta: -26.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:06:00,468 INFO L158 Benchmark]: Witness Printer took 8.88ms. Allocated memory is still 184.5MB. Free memory is still 110.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:06:00,477 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1562]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1571, overapproximation of bitwiseOr at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=13, argc=13, argv={14:18}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] EXPR *dataPtr1 = data [L1554-L1558] { int data = *dataPtr1; data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)); *dataPtr1 = data; } [L1560] EXPR \read(*dataPtr2) [L1560] int data = *dataPtr2; [L1562] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data={24230:0}, dataPtr1={24230:0}, dataPtr2={24230:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 146.8MB. Free memory was 96.4MB in the beginning and 96.3MB in the end (delta: 42.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1657.44ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 97.7MB in the beginning and 128.4MB in the end (delta: -30.7MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.81ms. Allocated memory is still 184.5MB. Free memory was 128.4MB in the beginning and 125.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.44ms. Allocated memory is still 184.5MB. Free memory was 125.3MB in the beginning and 123.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 790.60ms. Allocated memory is still 184.5MB. Free memory was 123.1MB in the beginning and 84.4MB in the end (delta: 38.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * CodeCheck took 896.18ms. Allocated memory is still 184.5MB. Free memory was 84.4MB in the beginning and 110.9MB in the end (delta: -26.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.88ms. Allocated memory is still 184.5MB. Free memory is still 110.9MB. 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~nondet114 - 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 23:06:00,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/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_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/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_4c62dcd5-2804-4d31-b82a-cc1d143955a0/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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:06:03,191 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:06:03,328 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-24 23:06:03,384 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:06:03,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:06:03,386 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:06:03,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:06:03,387 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:06:03,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:06:03,393 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:06:03,394 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:06:03,394 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:06:03,394 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:06:03,396 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:06:03,396 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:06:03,397 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:06:03,397 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:06:03,398 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:06:03,398 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:06:03,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:06:03,399 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:06:03,400 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:06:03,400 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:06:03,400 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:06:03,401 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:06:03,401 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 23:06:03,402 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:06:03,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:06:03,402 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:06:03,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:06:03,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:06:03,404 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:06:03,405 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:06:03,405 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:06:03,405 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 23:06:03,405 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:06:03,406 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_4c62dcd5-2804-4d31-b82a-cc1d143955a0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2023-11-24 23:06:03,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:06:03,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:06:03,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:06:03,891 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:06:03,892 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:06:03,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2023-11-24 23:06:07,297 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:06:07,858 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:06:07,864 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2023-11-24 23:06:07,890 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/data/4797dee91/9443b0ad4419416ab1e68769ca051b93/FLAG3cd2c0142 [2023-11-24 23:06:07,908 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/data/4797dee91/9443b0ad4419416ab1e68769ca051b93 [2023-11-24 23:06:07,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:06:07,915 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:06:07,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:06:07,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:06:07,924 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:06:07,925 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:06:07" (1/1) ... [2023-11-24 23:06:07,926 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@562a5ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:07, skipping insertion in model container [2023-11-24 23:06:07,927 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:06:07" (1/1) ... [2023-11-24 23:06:08,017 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:06:09,250 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:06:09,264 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:06:09,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:06:09,533 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:06:09,534 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:06:09,534 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:06:09,534 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:06:09,542 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:06:09,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:09 WrapperNode [2023-11-24 23:06:09,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:06:09,544 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:06:09,544 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:06:09,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:06:09,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:09" (1/1) ... [2023-11-24 23:06:09,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:09" (1/1) ... [2023-11-24 23:06:09,610 INFO L138 Inliner]: procedures = 503, calls = 61, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2023-11-24 23:06:09,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:06:09,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:06:09,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:06:09,612 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:06:09,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:09" (1/1) ... [2023-11-24 23:06:09,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:09" (1/1) ... [2023-11-24 23:06:09,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:09" (1/1) ... [2023-11-24 23:06:09,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:09" (1/1) ... [2023-11-24 23:06:09,637 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:09" (1/1) ... [2023-11-24 23:06:09,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:09" (1/1) ... [2023-11-24 23:06:09,643 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:09" (1/1) ... [2023-11-24 23:06:09,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:09" (1/1) ... [2023-11-24 23:06:09,650 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:06:09,651 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:06:09,651 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:06:09,652 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:06:09,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:09" (1/1) ... [2023-11-24 23:06:09,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:06:09,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:06:09,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:06:09,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:06:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:06:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:06:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:06:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:06:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:06:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:06:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:06:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:06:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:06:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:06:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:06:09,928 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:06:09,929 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:06:10,081 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:06:10,152 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:06:10,153 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:06:10,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:06:10 BoogieIcfgContainer [2023-11-24 23:06:10,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:06:10,156 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:06:10,156 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:06:10,166 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:06:10,166 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:06:10" (1/1) ... [2023-11-24 23:06:10,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:06:10,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:06:10,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-24 23:06:10,239 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-24 23:06:10,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:06:10,243 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:06:10,244 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:06:10,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:06:10,247 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:06:10,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 23:06:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:06:10,518 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:06:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:06:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:06:10,798 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:06:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:06:10,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:06:10,887 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 23:06:10,917 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet108 [2023-11-24 23:06:10,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:06:10 ImpRootNode [2023-11-24 23:06:10,933 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:06:10,937 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:06:10,937 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:06:10,937 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:06:10,938 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:06:10" (3/4) ... [2023-11-24 23:06:10,940 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:06:10,941 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:06:10,942 INFO L158 Benchmark]: Toolchain (without parser) took 3027.59ms. Allocated memory is still 109.1MB. Free memory was 80.8MB in the beginning and 62.7MB in the end (delta: 18.2MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-11-24 23:06:10,943 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 75.5MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:06:10,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1625.19ms. Allocated memory is still 109.1MB. Free memory was 80.8MB in the beginning and 74.2MB in the end (delta: 6.6MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2023-11-24 23:06:10,945 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.43ms. Allocated memory is still 109.1MB. Free memory was 74.2MB in the beginning and 71.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:06:10,946 INFO L158 Benchmark]: Boogie Preprocessor took 39.24ms. Allocated memory is still 109.1MB. Free memory was 70.6MB in the beginning and 68.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:06:10,946 INFO L158 Benchmark]: RCFGBuilder took 503.68ms. Allocated memory is still 109.1MB. Free memory was 68.5MB in the beginning and 48.6MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 23:06:10,947 INFO L158 Benchmark]: CodeCheck took 777.62ms. Allocated memory is still 109.1MB. Free memory was 48.6MB in the beginning and 63.3MB in the end (delta: -14.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:06:10,948 INFO L158 Benchmark]: Witness Printer took 4.67ms. Allocated memory is still 109.1MB. Free memory was 63.3MB in the beginning and 62.7MB in the end (delta: 661.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:06:10,958 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1562]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1571. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] EXPR *dataPtr1 = data [L1554-L1558] { int data = *dataPtr1; data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)); *dataPtr1 = data; } [L1560] EXPR \read(*dataPtr2) [L1560] int data = *dataPtr2; [L1562] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data={5:0}, dataPtr1={5:0}, dataPtr2={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66ms. Allocated memory is still 75.5MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1625.19ms. Allocated memory is still 109.1MB. Free memory was 80.8MB in the beginning and 74.2MB in the end (delta: 6.6MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.43ms. Allocated memory is still 109.1MB. Free memory was 74.2MB in the beginning and 71.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.24ms. Allocated memory is still 109.1MB. Free memory was 70.6MB in the beginning and 68.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 503.68ms. Allocated memory is still 109.1MB. Free memory was 68.5MB in the beginning and 48.6MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 777.62ms. Allocated memory is still 109.1MB. Free memory was 48.6MB in the beginning and 63.3MB in the end (delta: -14.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.67ms. Allocated memory is still 109.1MB. Free memory was 63.3MB in the beginning and 62.7MB in the end (delta: 661.8kB). 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~nondet108 - 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 23:06:10,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c62dcd5-2804-4d31-b82a-cc1d143955a0/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