./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:57:44,910 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:57:44,994 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:57:45,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:57:45,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:57:45,026 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:57:45,027 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:57:45,028 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:57:45,029 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:57:45,029 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:57:45,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:57:45,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:57:45,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:57:45,032 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:57:45,032 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:57:45,033 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:57:45,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:57:45,034 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:57:45,035 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:57:45,035 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:57:45,036 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:57:45,037 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:57:45,038 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:57:45,038 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:57:45,039 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:57:45,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:45,040 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:57:45,040 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:57:45,041 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:57:45,041 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:57:45,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:57:45,042 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:57:45,043 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_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d [2023-11-19 03:57:45,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:57:45,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:57:45,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:57:45,340 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:57:45,341 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:57:45,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-19 03:57:48,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:57:49,120 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:57:49,121 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-19 03:57:49,167 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/data/8717373c4/6fffb8ae06234d5282dd6c5bfabb140f/FLAG108b16a3c [2023-11-19 03:57:49,189 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/data/8717373c4/6fffb8ae06234d5282dd6c5bfabb140f [2023-11-19 03:57:49,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:57:49,200 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:57:49,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:49,204 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:57:49,209 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:57:49,210 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:49" (1/1) ... [2023-11-19 03:57:49,211 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f2ffad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:49, skipping insertion in model container [2023-11-19 03:57:49,212 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:49" (1/1) ... [2023-11-19 03:57:49,294 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:57:49,773 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:57:50,455 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:50,475 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:57:50,508 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:57:50,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:50,803 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:57:50,804 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:57:50,804 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:57:50,804 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:57:50,804 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:57:50,813 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:57:50,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:50 WrapperNode [2023-11-19 03:57:50,813 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:50,814 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:50,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:57:50,815 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:57:50,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:50" (1/1) ... [2023-11-19 03:57:50,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:50" (1/1) ... [2023-11-19 03:57:50,896 INFO L138 Inliner]: procedures = 500, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 91 [2023-11-19 03:57:50,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:50,897 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:57:50,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:57:50,898 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:57:50,908 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:50" (1/1) ... [2023-11-19 03:57:50,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:50" (1/1) ... [2023-11-19 03:57:50,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:50" (1/1) ... [2023-11-19 03:57:50,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:50" (1/1) ... [2023-11-19 03:57:50,921 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:50" (1/1) ... [2023-11-19 03:57:50,924 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:50" (1/1) ... [2023-11-19 03:57:50,933 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:50" (1/1) ... [2023-11-19 03:57:50,937 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:50" (1/1) ... [2023-11-19 03:57:50,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:57:50,942 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:57:50,942 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:57:50,942 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:57:50,943 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:50" (1/1) ... [2023-11-19 03:57:50,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:50,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:57:50,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:57:51,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:57:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:57:51,032 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:57:51,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:57:51,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:57:51,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:57:51,033 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:57:51,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:57:51,269 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:57:51,272 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:57:51,551 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:57:51,878 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:57:51,879 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:57:51,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:51 BoogieIcfgContainer [2023-11-19 03:57:51,883 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:57:51,893 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:57:51,893 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:57:51,904 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:57:51,905 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:51" (1/1) ... [2023-11-19 03:57:51,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:57:51,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:51,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 03:57:51,978 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 03:57:51,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:57:51,983 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:51,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:52,420 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:57:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:52,678 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:57:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:52,730 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:57:52,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:57:52 ImpRootNode [2023-11-19 03:57:52,770 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:57:52,774 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:57:52,774 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:57:52,775 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:57:52,776 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:51" (3/4) ... [2023-11-19 03:57:52,781 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:57:52,783 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:57:52,785 INFO L158 Benchmark]: Toolchain (without parser) took 3583.88ms. Allocated memory was 140.5MB in the beginning and 199.2MB in the end (delta: 58.7MB). Free memory was 90.5MB in the beginning and 115.5MB in the end (delta: -25.0MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:52,786 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 140.5MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:57:52,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1609.96ms. Allocated memory was 140.5MB in the beginning and 199.2MB in the end (delta: 58.7MB). Free memory was 90.5MB in the beginning and 137.1MB in the end (delta: -46.5MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2023-11-19 03:57:52,788 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.12ms. Allocated memory is still 199.2MB. Free memory was 137.1MB in the beginning and 134.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:57:52,789 INFO L158 Benchmark]: Boogie Preprocessor took 43.74ms. Allocated memory is still 199.2MB. Free memory was 134.0MB in the beginning and 131.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:52,791 INFO L158 Benchmark]: RCFGBuilder took 941.55ms. Allocated memory is still 199.2MB. Free memory was 131.9MB in the beginning and 95.1MB in the end (delta: 36.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-19 03:57:52,793 INFO L158 Benchmark]: CodeCheck took 877.65ms. Allocated memory is still 199.2MB. Free memory was 161.8MB in the beginning and 115.5MB in the end (delta: 46.3MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:52,794 INFO L158 Benchmark]: Witness Printer took 9.18ms. Allocated memory is still 199.2MB. Free memory was 115.5MB in the beginning and 115.5MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:57:52,804 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: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1553. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1559] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:14}, argv={13:14}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_51_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1553] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_predec_51b_badSink(data) [L1567] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 140.5MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1609.96ms. Allocated memory was 140.5MB in the beginning and 199.2MB in the end (delta: 58.7MB). Free memory was 90.5MB in the beginning and 137.1MB in the end (delta: -46.5MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.12ms. Allocated memory is still 199.2MB. Free memory was 137.1MB in the beginning and 134.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.74ms. Allocated memory is still 199.2MB. Free memory was 134.0MB in the beginning and 131.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 941.55ms. Allocated memory is still 199.2MB. Free memory was 131.9MB in the beginning and 95.1MB in the end (delta: 36.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * CodeCheck took 877.65ms. Allocated memory is still 199.2MB. Free memory was 161.8MB in the beginning and 115.5MB in the end (delta: 46.3MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 9.18ms. Allocated memory is still 199.2MB. Free memory was 115.5MB in the beginning and 115.5MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 03:57:52,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:57:55,692 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:57:55,839 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-19 03:57:55,887 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:57:55,889 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:57:55,890 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:57:55,891 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:57:55,891 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:57:55,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:57:55,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:57:55,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:57:55,898 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:57:55,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:57:55,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:57:55,901 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:57:55,901 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:57:55,902 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:57:55,902 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:57:55,902 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:57:55,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:57:55,903 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:57:55,904 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:57:55,905 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:57:55,905 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:57:55,906 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:57:55,906 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:57:55,907 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:57:55,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:55,908 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:57:55,908 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:57:55,910 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:57:55,910 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:57:55,910 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:57:55,911 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:57:55,911 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:57:55,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:57:55,911 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_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d [2023-11-19 03:57:56,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:57:56,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:57:56,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:57:56,440 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:57:56,441 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:57:56,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-19 03:57:59,892 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:58:00,344 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:58:00,345 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-19 03:58:00,381 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/data/05386ef9a/916af65ead9e4fa4842df877ae104758/FLAG053d2b5ed [2023-11-19 03:58:00,395 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/data/05386ef9a/916af65ead9e4fa4842df877ae104758 [2023-11-19 03:58:00,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:58:00,399 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:58:00,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:58:00,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:58:00,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:58:00,406 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e9c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:00, skipping insertion in model container [2023-11-19 03:58:00,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,479 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:58:00,899 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:58:01,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:58:01,670 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:58:01,693 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:58:01,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:58:01,892 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:58:01,893 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:58:01,893 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:58:01,893 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:58:01,893 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:58:01,901 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:58:01,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:01 WrapperNode [2023-11-19 03:58:01,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:58:01,903 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:58:01,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:58:01,903 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:58:01,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:01" (1/1) ... [2023-11-19 03:58:01,949 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:01" (1/1) ... [2023-11-19 03:58:01,978 INFO L138 Inliner]: procedures = 505, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2023-11-19 03:58:01,978 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:58:01,979 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:58:01,979 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:58:01,979 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:58:01,991 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:01" (1/1) ... [2023-11-19 03:58:01,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:01" (1/1) ... [2023-11-19 03:58:01,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:01" (1/1) ... [2023-11-19 03:58:01,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:01" (1/1) ... [2023-11-19 03:58:02,006 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:01" (1/1) ... [2023-11-19 03:58:02,008 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:01" (1/1) ... [2023-11-19 03:58:02,011 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:01" (1/1) ... [2023-11-19 03:58:02,013 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:01" (1/1) ... [2023-11-19 03:58:02,018 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:58:02,019 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:58:02,019 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:58:02,019 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:58:02,020 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:01" (1/1) ... [2023-11-19 03:58:02,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:58:02,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:58:02,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:58:02,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:58:02,107 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:58:02,107 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:58:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:58:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:58:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:58:02,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:58:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:58:02,308 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:58:02,310 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:58:02,472 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:58:02,538 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:58:02,538 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:58:02,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:58:02 BoogieIcfgContainer [2023-11-19 03:58:02,543 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:58:02,544 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:58:02,544 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:58:02,555 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:58:02,555 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:58:02" (1/1) ... [2023-11-19 03:58:02,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:58:02,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:58:02,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 03:58:02,620 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 03:58:02,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:58:02,624 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:58:02,625 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:58:02,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:58:02,629 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:58:02,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:58:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:58:02,832 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:58:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:58:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:58:02,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:58:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:58:03,026 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:58:03,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-19 03:58:03,044 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:58:03,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:58:03 ImpRootNode [2023-11-19 03:58:03,089 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:58:03,092 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:58:03,092 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:58:03,092 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:58:03,093 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:58:02" (3/4) ... [2023-11-19 03:58:03,094 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:58:03,178 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:58:03,178 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:58:03,180 INFO L158 Benchmark]: Toolchain (without parser) took 2780.41ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 43.8MB in the beginning and 41.5MB in the end (delta: 2.3MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2023-11-19 03:58:03,180 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 71.3MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:58:03,182 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1502.04ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 43.6MB in the beginning and 52.9MB in the end (delta: -9.2MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. [2023-11-19 03:58:03,182 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.16ms. Allocated memory is still 98.6MB. Free memory was 52.9MB in the beginning and 49.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:58:03,183 INFO L158 Benchmark]: Boogie Preprocessor took 38.97ms. Allocated memory is still 98.6MB. Free memory was 49.9MB in the beginning and 47.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:58:03,183 INFO L158 Benchmark]: RCFGBuilder took 524.14ms. Allocated memory is still 98.6MB. Free memory was 47.8MB in the beginning and 58.9MB in the end (delta: -11.1MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2023-11-19 03:58:03,184 INFO L158 Benchmark]: CodeCheck took 545.90ms. Allocated memory is still 98.6MB. Free memory was 58.9MB in the beginning and 43.5MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 03:58:03,184 INFO L158 Benchmark]: Witness Printer took 86.83ms. Allocated memory is still 98.6MB. Free memory was 43.5MB in the beginning and 41.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:58:03,192 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: 1567]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1559] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_51_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_predec_51b_badSink(data) [L1567] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 71.3MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1502.04ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 43.6MB in the beginning and 52.9MB in the end (delta: -9.2MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.16ms. Allocated memory is still 98.6MB. Free memory was 52.9MB in the beginning and 49.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.97ms. Allocated memory is still 98.6MB. Free memory was 49.9MB in the beginning and 47.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 524.14ms. Allocated memory is still 98.6MB. Free memory was 47.8MB in the beginning and 58.9MB in the end (delta: -11.1MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * CodeCheck took 545.90ms. Allocated memory is still 98.6MB. Free memory was 58.9MB in the beginning and 43.5MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 86.83ms. Allocated memory is still 98.6MB. Free memory was 43.5MB in the beginning and 41.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 03:58:03,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_409dd96d-5648-4033-addb-2790ed5329d8/bin/ukojak-verify-G8NBE6pJGL/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)