./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/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_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/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_e527fe31-6384-4311-b757-018155d0228f/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 0ac740a3b1a14f8d2a150055a480c2f2925c92c6a0ac6b2d4ac1379fa5b4336c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:55:16,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:55:16,720 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:55:16,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:55:16,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:55:16,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:55:16,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:55:16,757 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:55:16,758 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:55:16,759 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:55:16,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:55:16,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:55:16,761 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:55:16,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:55:16,762 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:55:16,762 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:55:16,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:55:16,764 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:55:16,764 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:55:16,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:55:16,765 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:55:16,766 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:55:16,767 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:55:16,767 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:55:16,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:55:16,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:55:16,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:55:16,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:55:16,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:55:16,771 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:55:16,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:55:16,772 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:55:16,772 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_e527fe31-6384-4311-b757-018155d0228f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ac740a3b1a14f8d2a150055a480c2f2925c92c6a0ac6b2d4ac1379fa5b4336c [2023-11-21 18:55:17,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:55:17,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:55:17,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:55:17,112 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:55:17,113 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:55:17,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_01_bad.i [2023-11-21 18:55:20,361 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:55:20,837 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:55:20,839 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_01_bad.i [2023-11-21 18:55:20,866 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/data/914552411/cde9f40bd6f248a9a6e13bdddd25f574/FLAG248b034d7 [2023-11-21 18:55:20,882 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/data/914552411/cde9f40bd6f248a9a6e13bdddd25f574 [2023-11-21 18:55:20,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:55:20,886 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:55:20,888 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:55:20,888 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:55:20,893 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:55:20,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:55:20" (1/1) ... [2023-11-21 18:55:20,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f6008eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:20, skipping insertion in model container [2023-11-21 18:55:20,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:55:20" (1/1) ... [2023-11-21 18:55:20,975 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:55:21,375 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:55:21,925 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:55:21,936 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:55:21,958 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:55:22,062 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:55:22,275 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:22,275 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:22,275 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:22,276 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:22,276 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:22,284 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:55:22,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:22 WrapperNode [2023-11-21 18:55:22,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:55:22,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:55:22,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:55:22,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:55:22,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:22" (1/1) ... [2023-11-21 18:55:22,319 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:22" (1/1) ... [2023-11-21 18:55:22,347 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2023-11-21 18:55:22,348 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:55:22,349 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:55:22,349 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:55:22,349 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:55:22,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:22" (1/1) ... [2023-11-21 18:55:22,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:22" (1/1) ... [2023-11-21 18:55:22,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:22" (1/1) ... [2023-11-21 18:55:22,376 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:22" (1/1) ... [2023-11-21 18:55:22,383 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:22" (1/1) ... [2023-11-21 18:55:22,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:22" (1/1) ... [2023-11-21 18:55:22,391 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:22" (1/1) ... [2023-11-21 18:55:22,405 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:22" (1/1) ... [2023-11-21 18:55:22,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:55:22,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:55:22,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:55:22,412 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:55:22,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:22" (1/1) ... [2023-11-21 18:55:22,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:55:22,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:55:22,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:55:22,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:55:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:55:22,498 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:55:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:55:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:55:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:55:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:55:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:55:22,687 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:55:22,692 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:55:22,894 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:55:23,226 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:55:23,226 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:55:23,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:55:23 BoogieIcfgContainer [2023-11-21 18:55:23,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:55:23,230 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:55:23,230 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:55:23,240 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:55:23,242 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:55:23" (1/1) ... [2023-11-21 18:55:23,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:55:23,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:23,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:55:23,314 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:55:23,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:55:23,317 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:23,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:55:23,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:55:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:55:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:55:23,949 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:55:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:55:24,011 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:55:24,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:55:24 ImpRootNode [2023-11-21 18:55:24,047 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:55:24,049 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:55:24,050 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:55:24,051 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:55:24,051 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:55:23" (3/4) ... [2023-11-21 18:55:24,056 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:55:24,058 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:55:24,059 INFO L158 Benchmark]: Toolchain (without parser) took 3172.45ms. Allocated memory is still 178.3MB. Free memory was 130.7MB in the beginning and 89.0MB in the end (delta: 41.7MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2023-11-21 18:55:24,060 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:55:24,060 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1397.06ms. Allocated memory is still 178.3MB. Free memory was 130.7MB in the beginning and 114.9MB in the end (delta: 15.8MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2023-11-21 18:55:24,061 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.66ms. Allocated memory is still 178.3MB. Free memory was 114.9MB in the beginning and 111.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:55:24,062 INFO L158 Benchmark]: Boogie Preprocessor took 62.02ms. Allocated memory is still 178.3MB. Free memory was 111.4MB in the beginning and 110.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:55:24,063 INFO L158 Benchmark]: RCFGBuilder took 816.58ms. Allocated memory is still 178.3MB. Free memory was 110.1MB in the beginning and 137.2MB in the end (delta: -27.1MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2023-11-21 18:55:24,064 INFO L158 Benchmark]: CodeCheck took 817.67ms. Allocated memory is still 178.3MB. Free memory was 137.2MB in the beginning and 90.0MB in the end (delta: 47.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-21 18:55:24,065 INFO L158 Benchmark]: Witness Printer took 8.56ms. Allocated memory is still 178.3MB. Free memory was 90.0MB in the beginning and 89.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:55:24,075 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, 0.0s 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1552. 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); [L1561] 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) [L1561] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={14:13}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] CALL CWE191_Integer_Underflow__int_rand_sub_01_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1552] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1397.06ms. Allocated memory is still 178.3MB. Free memory was 130.7MB in the beginning and 114.9MB in the end (delta: 15.8MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.66ms. Allocated memory is still 178.3MB. Free memory was 114.9MB in the beginning and 111.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.02ms. Allocated memory is still 178.3MB. Free memory was 111.4MB in the beginning and 110.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 816.58ms. Allocated memory is still 178.3MB. Free memory was 110.1MB in the beginning and 137.2MB in the end (delta: -27.1MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. * CodeCheck took 817.67ms. Allocated memory is still 178.3MB. Free memory was 137.2MB in the beginning and 90.0MB in the end (delta: 47.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 8.56ms. Allocated memory is still 178.3MB. Free memory was 90.0MB in the beginning and 89.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:55:24,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/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_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/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_e527fe31-6384-4311-b757-018155d0228f/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 0ac740a3b1a14f8d2a150055a480c2f2925c92c6a0ac6b2d4ac1379fa5b4336c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:55:27,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:55:27,122 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:55:27,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:55:27,158 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:55:27,159 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:55:27,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:55:27,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:55:27,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:55:27,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:55:27,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:55:27,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:55:27,164 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:55:27,165 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:55:27,166 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:55:27,166 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:55:27,167 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:55:27,168 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:55:27,168 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:55:27,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:55:27,169 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:55:27,170 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:55:27,171 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:55:27,171 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:55:27,172 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:55:27,172 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:55:27,173 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:55:27,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:55:27,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:55:27,174 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:55:27,175 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:55:27,175 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:55:27,176 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:55:27,176 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:55:27,176 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:55:27,176 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:55:27,177 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_e527fe31-6384-4311-b757-018155d0228f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ac740a3b1a14f8d2a150055a480c2f2925c92c6a0ac6b2d4ac1379fa5b4336c [2023-11-21 18:55:27,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:55:27,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:55:27,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:55:27,654 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:55:27,655 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:55:27,657 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_01_bad.i [2023-11-21 18:55:31,097 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:55:31,604 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:55:31,605 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_01_bad.i [2023-11-21 18:55:31,643 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/data/0c257fa60/b174b7ff66cd4318ab632ed5de789374/FLAG49b526a9f [2023-11-21 18:55:31,664 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/data/0c257fa60/b174b7ff66cd4318ab632ed5de789374 [2023-11-21 18:55:31,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:55:31,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:55:31,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:55:31,687 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:55:31,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:55:31,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:55:31" (1/1) ... [2023-11-21 18:55:31,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fefd631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:31, skipping insertion in model container [2023-11-21 18:55:31,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:55:31" (1/1) ... [2023-11-21 18:55:31,782 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:55:32,278 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:55:33,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:55:33,038 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:55:33,062 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:55:33,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:55:33,420 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:33,421 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:33,421 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:33,421 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:33,422 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:33,432 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:55:33,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:33 WrapperNode [2023-11-21 18:55:33,433 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:55:33,434 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:55:33,435 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:55:33,435 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:55:33,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:33" (1/1) ... [2023-11-21 18:55:33,507 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:33" (1/1) ... [2023-11-21 18:55:33,554 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2023-11-21 18:55:33,555 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:55:33,556 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:55:33,556 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:55:33,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:55:33,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:33" (1/1) ... [2023-11-21 18:55:33,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:33" (1/1) ... [2023-11-21 18:55:33,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:33" (1/1) ... [2023-11-21 18:55:33,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:33" (1/1) ... [2023-11-21 18:55:33,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:33" (1/1) ... [2023-11-21 18:55:33,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:33" (1/1) ... [2023-11-21 18:55:33,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:33" (1/1) ... [2023-11-21 18:55:33,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:33" (1/1) ... [2023-11-21 18:55:33,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:55:33,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:55:33,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:55:33,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:55:33,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:33" (1/1) ... [2023-11-21 18:55:33,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:55:33,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:55:33,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:55:33,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:55:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:55:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:55:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:55:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:55:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:55:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:55:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:55:33,963 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:55:33,967 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:55:34,148 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:55:34,223 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:55:34,223 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:55:34,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:55:34 BoogieIcfgContainer [2023-11-21 18:55:34,225 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:55:34,226 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:55:34,227 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:55:34,237 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:55:34,238 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:55:34" (1/1) ... [2023-11-21 18:55:34,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:55:34,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:34,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:55:34,298 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:55:34,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:55:34,302 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:34,303 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:55:34,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:55:34,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:55:34,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:55:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:55:34,502 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:55:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:55:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:55:34,633 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:55:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:55:34,668 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:55:34,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:55:34,678 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:55:34,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:55:34 ImpRootNode [2023-11-21 18:55:34,708 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:55:34,709 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:55:34,710 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:55:34,710 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:55:34,710 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:55:34" (3/4) ... [2023-11-21 18:55:34,711 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 18:55:34,755 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:55:34,756 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:55:34,757 INFO L158 Benchmark]: Toolchain (without parser) took 3083.63ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 41.8MB in the beginning and 37.6MB in the end (delta: 4.2MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2023-11-21 18:55:34,758 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 73.4MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:55:34,759 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1748.94ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 41.6MB in the beginning and 52.6MB in the end (delta: -11.0MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2023-11-21 18:55:34,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.84ms. Allocated memory is still 92.3MB. Free memory was 52.6MB in the beginning and 49.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:55:34,760 INFO L158 Benchmark]: Boogie Preprocessor took 90.82ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 47.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:55:34,761 INFO L158 Benchmark]: RCFGBuilder took 578.09ms. Allocated memory is still 92.3MB. Free memory was 47.5MB in the beginning and 54.2MB in the end (delta: -6.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:55:34,762 INFO L158 Benchmark]: CodeCheck took 482.31ms. Allocated memory is still 92.3MB. Free memory was 54.2MB in the beginning and 39.6MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:55:34,778 INFO L158 Benchmark]: Witness Printer took 46.45ms. Allocated memory is still 92.3MB. Free memory was 39.6MB in the beginning and 37.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:55:34,782 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: 1554]: 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); [L1561] 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) [L1561] 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] [L1562] CALL CWE191_Integer_Underflow__int_rand_sub_01_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 73.4MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1748.94ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 41.6MB in the beginning and 52.6MB in the end (delta: -11.0MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 120.84ms. Allocated memory is still 92.3MB. Free memory was 52.6MB in the beginning and 49.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.82ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 47.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 578.09ms. Allocated memory is still 92.3MB. Free memory was 47.5MB in the beginning and 54.2MB in the end (delta: -6.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 482.31ms. Allocated memory is still 92.3MB. Free memory was 54.2MB in the beginning and 39.6MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 46.45ms. Allocated memory is still 92.3MB. Free memory was 39.6MB in the beginning and 37.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 18:55:34,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e527fe31-6384-4311-b757-018155d0228f/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)