./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_61_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f477b5fb0e7c3844245e013fefa70a4cbac2bb935d243d894c8ceb7ab6616078 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:41:48,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:41:48,540 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:41:48,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:41:48,547 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:41:48,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:41:48,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:41:48,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:41:48,579 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:41:48,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:41:48,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:41:48,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:41:48,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:41:48,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:41:48,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:41:48,585 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:41:48,585 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:41:48,586 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:41:48,587 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:41:48,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:41:48,588 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:41:48,589 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:41:48,590 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:41:48,591 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:41:48,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:41:48,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:41:48,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:41:48,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:41:48,594 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:41:48,595 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:41:48,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:41:48,596 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:41:48,600 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_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f477b5fb0e7c3844245e013fefa70a4cbac2bb935d243d894c8ceb7ab6616078 [2023-11-21 18:41:48,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:41:48,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:41:48,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:41:48,993 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:41:48,993 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:41:48,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_61_bad.i [2023-11-21 18:41:52,323 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:41:52,837 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:41:52,838 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_61_bad.i [2023-11-21 18:41:52,880 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/data/7dd772318/a2afd35fd739478182beb4d0ce1e24d9/FLAGf58753a29 [2023-11-21 18:41:52,902 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/data/7dd772318/a2afd35fd739478182beb4d0ce1e24d9 [2023-11-21 18:41:52,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:41:52,914 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:41:52,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:41:52,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:41:52,924 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:41:52,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:41:52" (1/1) ... [2023-11-21 18:41:52,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39fd2f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:52, skipping insertion in model container [2023-11-21 18:41:52,929 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:41:52" (1/1) ... [2023-11-21 18:41:53,013 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:41:53,653 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:41:54,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:41:54,404 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:41:54,446 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:41:54,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:41:54,704 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:54,705 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:54,705 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:54,705 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:54,705 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:54,715 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:41:54,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:54 WrapperNode [2023-11-21 18:41:54,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:41:54,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:41:54,718 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:41:54,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:41:54,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:54" (1/1) ... [2023-11-21 18:41:54,771 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:54" (1/1) ... [2023-11-21 18:41:54,829 INFO L138 Inliner]: procedures = 500, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 95 [2023-11-21 18:41:54,830 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:41:54,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:41:54,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:41:54,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:41:54,843 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:54" (1/1) ... [2023-11-21 18:41:54,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:54" (1/1) ... [2023-11-21 18:41:54,859 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:54" (1/1) ... [2023-11-21 18:41:54,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:54" (1/1) ... [2023-11-21 18:41:54,878 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:54" (1/1) ... [2023-11-21 18:41:54,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:54" (1/1) ... [2023-11-21 18:41:54,883 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:54" (1/1) ... [2023-11-21 18:41:54,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:54" (1/1) ... [2023-11-21 18:41:54,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:41:54,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:41:54,906 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:41:54,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:41:54,907 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:54" (1/1) ... [2023-11-21 18:41:54,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:41:54,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:41:54,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:41:54,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:41:54,998 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:41:54,999 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:41:55,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:41:55,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:41:55,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:41:55,000 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:41:55,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:41:55,238 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:41:55,240 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:41:55,618 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:41:55,936 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:41:55,937 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:41:55,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:41:55 BoogieIcfgContainer [2023-11-21 18:41:55,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:41:55,940 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:41:55,940 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:41:55,950 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:41:55,952 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:41:55" (1/1) ... [2023-11-21 18:41:55,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:41:56,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:56,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:41:56,035 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:41:56,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:41:56,041 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:56,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:41:56,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:41:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:41:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:41:56,697 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:41:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:41:56,754 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:41:56,784 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post99 could not be translated [2023-11-21 18:41:56,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:41:56 ImpRootNode [2023-11-21 18:41:56,791 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:41:56,793 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:41:56,793 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:41:56,794 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:41:56,794 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:41:55" (3/4) ... [2023-11-21 18:41:56,799 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:41:56,800 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:41:56,802 INFO L158 Benchmark]: Toolchain (without parser) took 3886.48ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 64.8MB in the beginning and 78.8MB in the end (delta: -14.0MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2023-11-21 18:41:56,802 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:41:56,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1799.31ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 64.6MB in the beginning and 95.1MB in the end (delta: -30.5MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2023-11-21 18:41:56,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.09ms. Allocated memory is still 178.3MB. Free memory was 95.1MB in the beginning and 92.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:41:56,805 INFO L158 Benchmark]: Boogie Preprocessor took 74.11ms. Allocated memory is still 178.3MB. Free memory was 92.2MB in the beginning and 90.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:41:56,806 INFO L158 Benchmark]: RCFGBuilder took 1033.24ms. Allocated memory is still 178.3MB. Free memory was 90.1MB in the beginning and 115.5MB in the end (delta: -25.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 18:41:56,807 INFO L158 Benchmark]: CodeCheck took 851.04ms. Allocated memory is still 178.3MB. Free memory was 115.5MB in the beginning and 79.8MB in the end (delta: 35.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-21 18:41:56,808 INFO L158 Benchmark]: Witness Printer took 7.37ms. Allocated memory is still 178.3MB. Free memory was 79.8MB in the beginning and 78.8MB in the end (delta: 924.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:41:56,818 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr 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); [L1563] 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) [L1563] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:14}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE191_Integer_Underflow__int_rand_postdec_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_rand_postdec_61b_badSource(data) [L1570] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1570] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1570] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1570] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1570] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1571] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_rand_postdec_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_rand_postdec_61b_badSource(data) [L1555] 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] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1799.31ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 64.6MB in the beginning and 95.1MB in the end (delta: -30.5MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.09ms. Allocated memory is still 178.3MB. Free memory was 95.1MB in the beginning and 92.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.11ms. Allocated memory is still 178.3MB. Free memory was 92.2MB in the beginning and 90.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1033.24ms. Allocated memory is still 178.3MB. Free memory was 90.1MB in the beginning and 115.5MB in the end (delta: -25.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 851.04ms. Allocated memory is still 178.3MB. Free memory was 115.5MB in the beginning and 79.8MB in the end (delta: 35.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 7.37ms. Allocated memory is still 178.3MB. Free memory was 79.8MB in the beginning and 78.8MB in the end (delta: 924.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post99 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 [2023-11-21 18:41:56,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f477b5fb0e7c3844245e013fefa70a4cbac2bb935d243d894c8ceb7ab6616078 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:41:59,984 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:42:00,099 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:42:00,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:42:00,146 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:42:00,146 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:42:00,147 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:42:00,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:42:00,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:42:00,149 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:42:00,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:42:00,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:42:00,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:42:00,151 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:42:00,152 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:42:00,152 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:42:00,153 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:42:00,153 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:42:00,153 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:42:00,154 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:42:00,154 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:42:00,155 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:42:00,155 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:42:00,156 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:42:00,156 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:42:00,156 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:42:00,157 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:42:00,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:42:00,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:42:00,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:42:00,159 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:42:00,159 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:42:00,159 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:42:00,159 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:42:00,160 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:42:00,160 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:42:00,160 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_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f477b5fb0e7c3844245e013fefa70a4cbac2bb935d243d894c8ceb7ab6616078 [2023-11-21 18:42:00,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:42:00,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:42:00,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:42:00,644 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:42:00,645 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:42:00,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_61_bad.i [2023-11-21 18:42:03,839 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:42:04,351 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:42:04,352 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_61_bad.i [2023-11-21 18:42:04,386 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/data/17a8adbd9/f9ebacd6c10c4057ac8a307307c65621/FLAGa503f1b2b [2023-11-21 18:42:04,404 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/data/17a8adbd9/f9ebacd6c10c4057ac8a307307c65621 [2023-11-21 18:42:04,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:42:04,409 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:42:04,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:42:04,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:42:04,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:42:04,418 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:42:04" (1/1) ... [2023-11-21 18:42:04,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb08e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:04, skipping insertion in model container [2023-11-21 18:42:04,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:42:04" (1/1) ... [2023-11-21 18:42:04,485 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:42:05,113 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:42:05,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:42:05,962 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:42:05,982 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:42:06,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:42:06,274 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:42:06,274 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:42:06,275 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:42:06,275 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:42:06,275 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:42:06,283 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:42:06,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:06 WrapperNode [2023-11-21 18:42:06,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:42:06,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:42:06,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:42:06,287 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:42:06,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:06" (1/1) ... [2023-11-21 18:42:06,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:06" (1/1) ... [2023-11-21 18:42:06,384 INFO L138 Inliner]: procedures = 505, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2023-11-21 18:42:06,386 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:42:06,387 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:42:06,387 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:42:06,387 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:42:06,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:06" (1/1) ... [2023-11-21 18:42:06,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:06" (1/1) ... [2023-11-21 18:42:06,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:06" (1/1) ... [2023-11-21 18:42:06,420 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:06" (1/1) ... [2023-11-21 18:42:06,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:06" (1/1) ... [2023-11-21 18:42:06,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:06" (1/1) ... [2023-11-21 18:42:06,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:06" (1/1) ... [2023-11-21 18:42:06,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:06" (1/1) ... [2023-11-21 18:42:06,458 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:42:06,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:42:06,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:42:06,466 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:42:06,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:06" (1/1) ... [2023-11-21 18:42:06,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:42:06,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:42:06,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:42:06,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:42:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:42:06,553 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:42:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:42:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:42:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:42:06,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:42:06,553 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:42:06,804 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:42:06,807 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:42:07,019 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:42:07,129 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:42:07,129 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:42:07,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:07 BoogieIcfgContainer [2023-11-21 18:42:07,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:42:07,135 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:42:07,135 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:42:07,146 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:42:07,146 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:07" (1/1) ... [2023-11-21 18:42:07,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:42:07,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:07,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:42:07,241 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:42:07,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:42:07,248 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:07,249 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:42:07,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:42:07,255 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:42:07,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:42:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:42:07,477 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:42:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:42:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:42:07,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:42:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:42:07,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:42:07,688 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:42:07,722 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post97 could not be translated [2023-11-21 18:42:07,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:42:07 ImpRootNode [2023-11-21 18:42:07,727 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:42:07,728 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:42:07,728 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:42:07,728 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:42:07,729 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:07" (3/4) ... [2023-11-21 18:42:07,730 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 18:42:07,735 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post97 could not be translated [2023-11-21 18:42:07,773 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:42:07,773 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:42:07,774 INFO L158 Benchmark]: Toolchain (without parser) took 3364.64ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 43.9MB in the end (delta: 31.4MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2023-11-21 18:42:07,775 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 77.6MB. Free memory was 54.2MB in the beginning and 54.1MB in the end (delta: 141.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:42:07,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1873.31ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 57.2MB in the end (delta: 18.1MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2023-11-21 18:42:07,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.54ms. Allocated memory is still 102.8MB. Free memory was 57.2MB in the beginning and 53.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:42:07,791 INFO L158 Benchmark]: Boogie Preprocessor took 77.83ms. Allocated memory is still 102.8MB. Free memory was 53.9MB in the beginning and 52.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:42:07,791 INFO L158 Benchmark]: RCFGBuilder took 668.89ms. Allocated memory is still 102.8MB. Free memory was 51.8MB in the beginning and 61.2MB in the end (delta: -9.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2023-11-21 18:42:07,792 INFO L158 Benchmark]: CodeCheck took 592.59ms. Allocated memory is still 102.8MB. Free memory was 61.2MB in the beginning and 46.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:42:07,792 INFO L158 Benchmark]: Witness Printer took 45.29ms. Allocated memory is still 102.8MB. Free memory was 46.0MB in the beginning and 43.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:42:07,795 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: 0.5s, 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, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1555]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1563] 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) [L1563] 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] [L1564] CALL CWE191_Integer_Underflow__int_rand_postdec_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_rand_postdec_61b_badSource(data) [L1570] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1570] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1570] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1571] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_rand_postdec_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_rand_postdec_61b_badSource(data) [L1555] 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] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 77.6MB. Free memory was 54.2MB in the beginning and 54.1MB in the end (delta: 141.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1873.31ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 57.2MB in the end (delta: 18.1MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.54ms. Allocated memory is still 102.8MB. Free memory was 57.2MB in the beginning and 53.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.83ms. Allocated memory is still 102.8MB. Free memory was 53.9MB in the beginning and 52.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 668.89ms. Allocated memory is still 102.8MB. Free memory was 51.8MB in the beginning and 61.2MB in the end (delta: -9.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * CodeCheck took 592.59ms. Allocated memory is still 102.8MB. Free memory was 61.2MB in the beginning and 46.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 45.29ms. Allocated memory is still 102.8MB. Free memory was 46.0MB in the beginning and 43.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post97 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post97 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 18:42:07,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836d09b4-476f-4273-908a-f78f3cf35e66/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)