./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_63_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/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_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/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_70a116f1-1231-4978-b907-f07d3c197eed/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 e0898e5e5cfdd247b566f3755428f0ed9de7ddc07afc49bdbd813552c9036aa1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:31:31,817 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:31:31,899 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:31:31,906 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:31:31,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:31:31,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:31:31,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:31:31,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:31:31,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:31:31,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:31:31,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:31:31,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:31:31,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:31:31,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:31:31,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:31:31,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:31:31,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:31:31,943 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:31:31,944 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:31:31,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:31:31,945 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:31:31,956 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:31:31,957 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:31:31,957 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:31:31,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:31:31,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:31:31,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:31:31,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:31:31,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:31:31,961 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:31:31,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:31:31,983 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:31:31,984 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_70a116f1-1231-4978-b907-f07d3c197eed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0898e5e5cfdd247b566f3755428f0ed9de7ddc07afc49bdbd813552c9036aa1 [2023-11-21 18:31:32,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:31:32,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:31:32,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:31:32,399 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:31:32,399 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:31:32,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_63_bad.i [2023-11-21 18:31:35,569 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:31:36,091 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:31:36,094 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_63_bad.i [2023-11-21 18:31:36,129 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/data/ecb6776df/2755c3069a564791b21d39bb3667b58d/FLAG5fe096bac [2023-11-21 18:31:36,148 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/data/ecb6776df/2755c3069a564791b21d39bb3667b58d [2023-11-21 18:31:36,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:31:36,156 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:31:36,159 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:31:36,159 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:31:36,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:31:36,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:31:36" (1/1) ... [2023-11-21 18:31:36,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce68287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:36, skipping insertion in model container [2023-11-21 18:31:36,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:31:36" (1/1) ... [2023-11-21 18:31:36,256 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:31:36,702 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:31:37,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:31:37,322 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:31:37,346 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:31:37,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:31:37,653 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:31:37,653 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:31:37,653 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:31:37,654 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:31:37,654 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:31:37,661 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:31:37,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:37 WrapperNode [2023-11-21 18:31:37,662 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:31:37,663 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:31:37,663 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:31:37,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:31:37,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:37" (1/1) ... [2023-11-21 18:31:37,716 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:37" (1/1) ... [2023-11-21 18:31:37,770 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 95 [2023-11-21 18:31:37,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:31:37,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:31:37,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:31:37,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:31:37,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:37" (1/1) ... [2023-11-21 18:31:37,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:37" (1/1) ... [2023-11-21 18:31:37,791 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:37" (1/1) ... [2023-11-21 18:31:37,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:37" (1/1) ... [2023-11-21 18:31:37,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:37" (1/1) ... [2023-11-21 18:31:37,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:37" (1/1) ... [2023-11-21 18:31:37,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:37" (1/1) ... [2023-11-21 18:31:37,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:37" (1/1) ... [2023-11-21 18:31:37,820 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:31:37,821 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:31:37,821 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:31:37,821 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:31:37,822 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:37" (1/1) ... [2023-11-21 18:31:37,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:31:37,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:31:37,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:31:37,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:31:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:31:37,889 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:31:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:31:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:31:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:31:37,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:31:37,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:31:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:31:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:31:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:31:37,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:31:38,042 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:31:38,044 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:31:38,271 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:31:38,608 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:31:38,609 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:31:38,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:31:38 BoogieIcfgContainer [2023-11-21 18:31:38,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:31:38,614 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:31:38,614 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:31:38,625 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:31:38,625 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:31:38" (1/1) ... [2023-11-21 18:31:38,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:31:38,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:38,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:31:38,698 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:31:38,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:31:38,702 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:38,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:31:39,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:31:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:31:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:31:39,442 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:31:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:31:39,516 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:31:39,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:31:39 ImpRootNode [2023-11-21 18:31:39,552 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:31:39,555 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:31:39,555 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:31:39,555 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:31:39,556 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:31:38" (3/4) ... [2023-11-21 18:31:39,560 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:31:39,562 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:31:39,563 INFO L158 Benchmark]: Toolchain (without parser) took 3406.91ms. Allocated memory is still 169.9MB. Free memory was 137.9MB in the beginning and 107.0MB in the end (delta: 30.9MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2023-11-21 18:31:39,564 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 123.7MB. Free memory is still 92.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:31:39,565 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1503.75ms. Allocated memory is still 169.9MB. Free memory was 137.9MB in the beginning and 128.7MB in the end (delta: 9.2MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. [2023-11-21 18:31:39,566 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.09ms. Allocated memory is still 169.9MB. Free memory was 128.7MB in the beginning and 125.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:31:39,567 INFO L158 Benchmark]: Boogie Preprocessor took 43.28ms. Allocated memory is still 169.9MB. Free memory was 125.5MB in the beginning and 124.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:31:39,567 INFO L158 Benchmark]: RCFGBuilder took 791.77ms. Allocated memory is still 169.9MB. Free memory was 124.5MB in the beginning and 83.6MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-21 18:31:39,569 INFO L158 Benchmark]: CodeCheck took 938.72ms. Allocated memory is still 169.9MB. Free memory was 83.6MB in the beginning and 107.0MB in the end (delta: -23.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:31:39,570 INFO L158 Benchmark]: Witness Printer took 7.30ms. Allocated memory is still 169.9MB. Free memory is still 107.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:31:39,579 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1568]: 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)=14, argc=14, argv={13:16}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_63_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_63b_badSink(&data) [L1566] EXPR \read(*dataPtr) [L1566] int data = *dataPtr; [L1568] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={2162:0}, dataPtr={2162:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 123.7MB. Free memory is still 92.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1503.75ms. Allocated memory is still 169.9MB. Free memory was 137.9MB in the beginning and 128.7MB in the end (delta: 9.2MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.09ms. Allocated memory is still 169.9MB. Free memory was 128.7MB in the beginning and 125.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.28ms. Allocated memory is still 169.9MB. Free memory was 125.5MB in the beginning and 124.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 791.77ms. Allocated memory is still 169.9MB. Free memory was 124.5MB in the beginning and 83.6MB in the end (delta: 40.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * CodeCheck took 938.72ms. Allocated memory is still 169.9MB. Free memory was 83.6MB in the beginning and 107.0MB in the end (delta: -23.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.30ms. Allocated memory is still 169.9MB. Free memory is still 107.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:31:39,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/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_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/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_70a116f1-1231-4978-b907-f07d3c197eed/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 e0898e5e5cfdd247b566f3755428f0ed9de7ddc07afc49bdbd813552c9036aa1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:31:42,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:31:42,463 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:31:42,524 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:31:42,525 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:31:42,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:31:42,528 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:31:42,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:31:42,530 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:31:42,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:31:42,535 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:31:42,536 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:31:42,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:31:42,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:31:42,539 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:31:42,540 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:31:42,540 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:31:42,541 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:31:42,541 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:31:42,543 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:31:42,543 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:31:42,544 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:31:42,544 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:31:42,545 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:31:42,545 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:31:42,546 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:31:42,546 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:31:42,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:31:42,547 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:31:42,548 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:31:42,549 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:31:42,549 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:31:42,550 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:31:42,550 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:31:42,551 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:31:42,551 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:31:42,551 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_70a116f1-1231-4978-b907-f07d3c197eed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0898e5e5cfdd247b566f3755428f0ed9de7ddc07afc49bdbd813552c9036aa1 [2023-11-21 18:31:42,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:31:43,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:31:43,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:31:43,017 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:31:43,018 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:31:43,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_63_bad.i [2023-11-21 18:31:46,394 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:31:46,882 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:31:46,882 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_63_bad.i [2023-11-21 18:31:46,924 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/data/aaf7cda99/91d0a03a1dcc4e629dbe46b4e58707b4/FLAG7df0735d0 [2023-11-21 18:31:46,944 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/data/aaf7cda99/91d0a03a1dcc4e629dbe46b4e58707b4 [2023-11-21 18:31:46,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:31:46,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:31:46,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:31:46,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:31:46,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:31:46,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:31:46" (1/1) ... [2023-11-21 18:31:46,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d77a58e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:46, skipping insertion in model container [2023-11-21 18:31:46,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:31:46" (1/1) ... [2023-11-21 18:31:47,049 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:31:47,595 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:31:48,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:31:48,233 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:31:48,260 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:31:48,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:31:48,539 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:31:48,539 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:31:48,539 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:31:48,539 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:31:48,539 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:31:48,548 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:31:48,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:48 WrapperNode [2023-11-21 18:31:48,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:31:48,551 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:31:48,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:31:48,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:31:48,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:48" (1/1) ... [2023-11-21 18:31:48,608 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:48" (1/1) ... [2023-11-21 18:31:48,660 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2023-11-21 18:31:48,661 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:31:48,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:31:48,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:31:48,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:31:48,671 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:48" (1/1) ... [2023-11-21 18:31:48,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:48" (1/1) ... [2023-11-21 18:31:48,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:48" (1/1) ... [2023-11-21 18:31:48,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:48" (1/1) ... [2023-11-21 18:31:48,701 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:48" (1/1) ... [2023-11-21 18:31:48,703 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:48" (1/1) ... [2023-11-21 18:31:48,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:48" (1/1) ... [2023-11-21 18:31:48,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:48" (1/1) ... [2023-11-21 18:31:48,728 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:31:48,729 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:31:48,729 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:31:48,729 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:31:48,730 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:48" (1/1) ... [2023-11-21 18:31:48,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:31:48,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:31:48,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:31:48,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:31:48,820 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:31:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:31:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:31:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:31:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:31:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:31:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:31:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 18:31:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:31:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 18:31:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:31:48,992 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:31:48,994 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:31:49,192 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:31:49,275 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:31:49,276 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:31:49,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:31:49 BoogieIcfgContainer [2023-11-21 18:31:49,278 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:31:49,279 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:31:49,279 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:31:49,289 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:31:49,295 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:31:49" (1/1) ... [2023-11-21 18:31:49,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:31:49,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:49,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:31:49,384 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:31:49,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:31:49,389 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:49,389 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:31:49,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:31:49,392 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:31:49,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:31:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:31:49,673 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:31:49,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:31:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:31:49,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:31:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:31:49,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-21 18:31:49,982 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:31:50,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:31:50 ImpRootNode [2023-11-21 18:31:50,018 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:31:50,020 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:31:50,020 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:31:50,020 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:31:50,021 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:31:49" (3/4) ... [2023-11-21 18:31:50,022 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 18:31:50,104 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:31:50,104 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:31:50,105 INFO L158 Benchmark]: Toolchain (without parser) took 3152.59ms. Allocated memory is still 96.5MB. Free memory was 68.9MB in the beginning and 40.9MB in the end (delta: 28.0MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2023-11-21 18:31:50,106 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 67.1MB. Free memory is still 43.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:31:50,106 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1591.52ms. Allocated memory is still 96.5MB. Free memory was 68.8MB in the beginning and 57.4MB in the end (delta: 11.4MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2023-11-21 18:31:50,107 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.35ms. Allocated memory is still 96.5MB. Free memory was 57.3MB in the beginning and 54.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:31:50,107 INFO L158 Benchmark]: Boogie Preprocessor took 66.22ms. Allocated memory is still 96.5MB. Free memory was 54.2MB in the beginning and 52.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:31:50,108 INFO L158 Benchmark]: RCFGBuilder took 549.17ms. Allocated memory is still 96.5MB. Free memory was 51.6MB in the beginning and 61.3MB in the end (delta: -9.8MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2023-11-21 18:31:50,108 INFO L158 Benchmark]: CodeCheck took 739.39ms. Allocated memory is still 96.5MB. Free memory was 60.8MB in the beginning and 43.0MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 18:31:50,109 INFO L158 Benchmark]: Witness Printer took 84.41ms. Allocated memory is still 96.5MB. Free memory was 43.0MB in the beginning and 40.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:31:50,117 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1568]: 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}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_63_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_63b_badSink(&data) [L1566] EXPR \read(*dataPtr) [L1566] int data = *dataPtr; [L1568] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={5:0}, dataPtr={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 67.1MB. Free memory is still 43.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1591.52ms. Allocated memory is still 96.5MB. Free memory was 68.8MB in the beginning and 57.4MB in the end (delta: 11.4MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.35ms. Allocated memory is still 96.5MB. Free memory was 57.3MB in the beginning and 54.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.22ms. Allocated memory is still 96.5MB. Free memory was 54.2MB in the beginning and 52.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 549.17ms. Allocated memory is still 96.5MB. Free memory was 51.6MB in the beginning and 61.3MB in the end (delta: -9.8MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * CodeCheck took 739.39ms. Allocated memory is still 96.5MB. Free memory was 60.8MB in the beginning and 43.0MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 84.41ms. Allocated memory is still 96.5MB. Free memory was 43.0MB in the beginning and 40.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 18:31:50,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70a116f1-1231-4978-b907-f07d3c197eed/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)