./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 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_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/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_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/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_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/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_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/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 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:53:42,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:53:42,361 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:53:42,372 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:53:42,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:53:42,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:53:42,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:53:42,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:53:42,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:53:42,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:53:42,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:53:42,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:53:42,429 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:53:42,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:53:42,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:53:42,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:53:42,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:53:42,432 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:53:42,432 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:53:42,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:53:42,433 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:53:42,434 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:53:42,434 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:53:42,434 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:53:42,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:53:42,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:53:42,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:53:42,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:53:42,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:53:42,456 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:53:42,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:53:42,456 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:53:42,457 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_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d [2023-11-21 18:53:42,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:53:42,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:53:42,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:53:42,808 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:53:42,809 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:53:42,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-21 18:53:45,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:53:46,245 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:53:46,246 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-21 18:53:46,280 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/data/b1b1c5e16/cd6775a651ea41d3b11a3dac1469901b/FLAGe87ffa90d [2023-11-21 18:53:46,299 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/data/b1b1c5e16/cd6775a651ea41d3b11a3dac1469901b [2023-11-21 18:53:46,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:53:46,307 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:53:46,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:53:46,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:53:46,315 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:53:46,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:53:46" (1/1) ... [2023-11-21 18:53:46,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d0820ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:46, skipping insertion in model container [2023-11-21 18:53:46,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:53:46" (1/1) ... [2023-11-21 18:53:46,412 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:53:46,885 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:53:47,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:53:47,578 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:53:47,615 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:53:47,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:53:47,886 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:53:47,886 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:53:47,887 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:53:47,887 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:53:47,887 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:53:47,896 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:53:47,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:47 WrapperNode [2023-11-21 18:53:47,897 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:53:47,898 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:53:47,898 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:53:47,898 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:53:47,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:47" (1/1) ... [2023-11-21 18:53:47,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:47" (1/1) ... [2023-11-21 18:53:48,006 INFO L138 Inliner]: procedures = 500, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 90 [2023-11-21 18:53:48,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:53:48,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:53:48,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:53:48,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:53:48,018 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:47" (1/1) ... [2023-11-21 18:53:48,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:47" (1/1) ... [2023-11-21 18:53:48,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:47" (1/1) ... [2023-11-21 18:53:48,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:47" (1/1) ... [2023-11-21 18:53:48,028 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:47" (1/1) ... [2023-11-21 18:53:48,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:47" (1/1) ... [2023-11-21 18:53:48,033 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:47" (1/1) ... [2023-11-21 18:53:48,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:47" (1/1) ... [2023-11-21 18:53:48,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:53:48,039 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:53:48,039 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:53:48,039 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:53:48,040 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:47" (1/1) ... [2023-11-21 18:53:48,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:53:48,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:53:48,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:53:48,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:53:48,193 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:53:48,193 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:53:48,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:53:48,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:53:48,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:53:48,194 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:53:48,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:53:48,339 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:53:48,341 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:53:48,562 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:53:48,865 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:53:48,865 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:53:48,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:53:48 BoogieIcfgContainer [2023-11-21 18:53:48,867 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:53:48,868 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:53:48,868 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:53:48,879 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:53:48,880 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:53:48" (1/1) ... [2023-11-21 18:53:48,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:53:48,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:53:48,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:53:48,958 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:53:48,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:53:48,963 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:53:48,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:53:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:53:49,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:53:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:53:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:53:49,662 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:53:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:53:49,744 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:53:49,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:53:49 ImpRootNode [2023-11-21 18:53:49,778 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:53:49,780 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:53:49,780 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:53:49,781 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:53:49,782 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:53:48" (3/4) ... [2023-11-21 18:53:49,788 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:53:49,789 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:53:49,790 INFO L158 Benchmark]: Toolchain (without parser) took 3482.25ms. Allocated memory is still 178.3MB. Free memory was 144.8MB in the beginning and 142.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:53:49,791 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 99.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:53:49,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1587.89ms. Allocated memory is still 178.3MB. Free memory was 144.8MB in the beginning and 82.1MB in the end (delta: 62.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-21 18:53:49,792 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.99ms. Allocated memory is still 178.3MB. Free memory was 82.1MB in the beginning and 144.1MB in the end (delta: -62.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 18:53:49,793 INFO L158 Benchmark]: Boogie Preprocessor took 30.77ms. Allocated memory is still 178.3MB. Free memory was 144.1MB in the beginning and 142.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:53:49,794 INFO L158 Benchmark]: RCFGBuilder took 828.00ms. Allocated memory is still 178.3MB. Free memory was 142.1MB in the beginning and 110.1MB in the end (delta: 32.0MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2023-11-21 18:53:49,795 INFO L158 Benchmark]: CodeCheck took 909.90ms. Allocated memory is still 178.3MB. Free memory was 110.1MB in the beginning and 142.6MB in the end (delta: -32.5MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2023-11-21 18:53:49,796 INFO L158 Benchmark]: Witness Printer took 8.87ms. Allocated memory is still 178.3MB. Free memory is still 142.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:53:49,805 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}, 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 0.29ms. Allocated memory is still 125.8MB. Free memory is still 99.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1587.89ms. Allocated memory is still 178.3MB. Free memory was 144.8MB in the beginning and 82.1MB in the end (delta: 62.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.99ms. Allocated memory is still 178.3MB. Free memory was 82.1MB in the beginning and 144.1MB in the end (delta: -62.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.77ms. Allocated memory is still 178.3MB. Free memory was 144.1MB in the beginning and 142.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 828.00ms. Allocated memory is still 178.3MB. Free memory was 142.1MB in the beginning and 110.1MB in the end (delta: 32.0MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. * CodeCheck took 909.90ms. Allocated memory is still 178.3MB. Free memory was 110.1MB in the beginning and 142.6MB in the end (delta: -32.5MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. * Witness Printer took 8.87ms. Allocated memory is still 178.3MB. Free memory is still 142.6MB. 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 18:53:49,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/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_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/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_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/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_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/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_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/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 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:53:52,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:53:52,783 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:53:52,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:53:52,840 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:53:52,841 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:53:52,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:53:52,842 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:53:52,843 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:53:52,849 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:53:52,850 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:53:52,850 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:53:52,851 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:53:52,852 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:53:52,853 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:53:52,853 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:53:52,854 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:53:52,854 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:53:52,855 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:53:52,855 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:53:52,856 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:53:52,857 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:53:52,858 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:53:52,858 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:53:52,859 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:53:52,859 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:53:52,860 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:53:52,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:53:52,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:53:52,861 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:53:52,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:53:52,863 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:53:52,863 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:53:52,864 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:53:52,864 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:53:52,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:53:52,865 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_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d [2023-11-21 18:53:53,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:53:53,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:53:53,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:53:53,357 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:53:53,358 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:53:53,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-21 18:53:56,764 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:53:57,262 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:53:57,263 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-21 18:53:57,300 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/data/caa2b088a/53595d06ac9b4902a2d98ccbd4dc90c4/FLAG3b7f4cd48 [2023-11-21 18:53:57,314 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/data/caa2b088a/53595d06ac9b4902a2d98ccbd4dc90c4 [2023-11-21 18:53:57,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:53:57,318 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:53:57,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:53:57,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:53:57,325 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:53:57,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:53:57" (1/1) ... [2023-11-21 18:53:57,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a3af15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:57, skipping insertion in model container [2023-11-21 18:53:57,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:53:57" (1/1) ... [2023-11-21 18:53:57,396 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:53:57,819 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:53:58,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:53:58,368 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:53:58,393 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:53:58,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:53:58,746 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:53:58,747 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:53:58,747 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:53:58,747 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:53:58,747 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:53:58,765 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:53:58,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:58 WrapperNode [2023-11-21 18:53:58,766 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:53:58,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:53:58,768 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:53:58,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:53:58,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:58" (1/1) ... [2023-11-21 18:53:58,835 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:58" (1/1) ... [2023-11-21 18:53:58,872 INFO L138 Inliner]: procedures = 505, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2023-11-21 18:53:58,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:53:58,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:53:58,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:53:58,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:53:58,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:58" (1/1) ... [2023-11-21 18:53:58,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:58" (1/1) ... [2023-11-21 18:53:58,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:58" (1/1) ... [2023-11-21 18:53:58,888 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:58" (1/1) ... [2023-11-21 18:53:58,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:58" (1/1) ... [2023-11-21 18:53:58,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:58" (1/1) ... [2023-11-21 18:53:58,919 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:58" (1/1) ... [2023-11-21 18:53:58,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:58" (1/1) ... [2023-11-21 18:53:58,925 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:53:58,926 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:53:58,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:53:58,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:53:58,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:53:58" (1/1) ... [2023-11-21 18:53:58,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:53:58,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:53:58,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:53:59,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:53:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:53:59,028 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:53:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:53:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:53:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:53:59,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:53:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:53:59,194 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:53:59,197 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:53:59,361 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:53:59,432 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:53:59,432 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:53:59,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:53:59 BoogieIcfgContainer [2023-11-21 18:53:59,434 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:53:59,435 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:53:59,436 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:53:59,446 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:53:59,447 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:53:59" (1/1) ... [2023-11-21 18:53:59,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:53:59,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:53:59,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:53:59,513 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:53:59,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:53:59,517 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:53:59,517 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:53:59,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:53:59,518 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:53:59,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:53:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:53:59,713 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:53:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:53:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:53:59,865 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:53:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:53:59,902 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:53:59,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:53:59,910 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:53:59,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:53:59 ImpRootNode [2023-11-21 18:53:59,936 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:53:59,936 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:53:59,937 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:53:59,937 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:53:59,938 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:53:59" (3/4) ... [2023-11-21 18:53:59,939 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 18:53:59,993 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:53:59,993 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:53:59,997 INFO L158 Benchmark]: Toolchain (without parser) took 2675.87ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 52.6MB in the beginning and 70.0MB in the end (delta: -17.4MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2023-11-21 18:54:00,001 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 79.7MB. Free memory was 55.0MB in the beginning and 54.9MB in the end (delta: 148.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:54:00,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1446.99ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 52.4MB in the beginning and 79.7MB in the end (delta: -27.3MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2023-11-21 18:54:00,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.68ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 76.5MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:54:00,006 INFO L158 Benchmark]: Boogie Preprocessor took 51.28ms. Allocated memory is still 107.0MB. Free memory was 76.5MB in the beginning and 74.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:54:00,007 INFO L158 Benchmark]: RCFGBuilder took 508.69ms. Allocated memory is still 107.0MB. Free memory was 74.4MB in the beginning and 55.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 18:54:00,007 INFO L158 Benchmark]: CodeCheck took 500.51ms. Allocated memory is still 107.0MB. Free memory was 55.4MB in the beginning and 72.1MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:54:00,008 INFO L158 Benchmark]: Witness Printer took 56.86ms. Allocated memory is still 107.0MB. Free memory was 72.1MB in the beginning and 70.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:54:00,010 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: 0.4s, 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}, 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 0.64ms. Allocated memory is still 79.7MB. Free memory was 55.0MB in the beginning and 54.9MB in the end (delta: 148.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1446.99ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 52.4MB in the beginning and 79.7MB in the end (delta: -27.3MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.68ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 76.5MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.28ms. Allocated memory is still 107.0MB. Free memory was 76.5MB in the beginning and 74.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.69ms. Allocated memory is still 107.0MB. Free memory was 74.4MB in the beginning and 55.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 500.51ms. Allocated memory is still 107.0MB. Free memory was 55.4MB in the beginning and 72.1MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 56.86ms. Allocated memory is still 107.0MB. Free memory was 72.1MB in the beginning and 70.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 18:54:00,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ccca3f-bbcf-4542-a350-af3e5bf63af2/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)