./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_52_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3e36a199aa0ccdd77af56159f0b4bbf8a4cac90e77a9fae4396e11976ef891d5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:56:42,186 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:56:42,293 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:56:42,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:56:42,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:56:42,350 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:56:42,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:56:42,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:56:42,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:56:42,357 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:56:42,359 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:56:42,359 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:56:42,360 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:56:42,361 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:56:42,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:56:42,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:56:42,363 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:56:42,363 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:56:42,363 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:56:42,364 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:56:42,364 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:56:42,365 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:56:42,365 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:56:42,366 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:56:42,366 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:56:42,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:56:42,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:56:42,368 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:56:42,368 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:56:42,368 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:56:42,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:56:42,370 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:56:42,370 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_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e36a199aa0ccdd77af56159f0b4bbf8a4cac90e77a9fae4396e11976ef891d5 [2023-11-19 03:56:42,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:56:42,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:56:42,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:56:42,713 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:56:42,714 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:56:42,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_52_bad.i [2023-11-19 03:56:45,753 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:56:46,152 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:56:46,153 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_52_bad.i [2023-11-19 03:56:46,178 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/data/7885a8c22/b4ecec63ea5943aeaa3615bc6811c819/FLAGa4f485503 [2023-11-19 03:56:46,200 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/data/7885a8c22/b4ecec63ea5943aeaa3615bc6811c819 [2023-11-19 03:56:46,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:56:46,207 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:56:46,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:56:46,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:56:46,214 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:56:46,215 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:56:46" (1/1) ... [2023-11-19 03:56:46,216 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ec6a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:46, skipping insertion in model container [2023-11-19 03:56:46,218 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:56:46" (1/1) ... [2023-11-19 03:56:46,303 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:56:46,722 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:56:47,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:56:47,444 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:56:47,481 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:56:47,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:56:47,707 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:56:47,708 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:56:47,708 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:56:47,708 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:56:47,708 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:56:47,717 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:56:47,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47 WrapperNode [2023-11-19 03:56:47,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:56:47,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:56:47,720 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:56:47,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:56:47,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,806 INFO L138 Inliner]: procedures = 501, calls = 58, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 93 [2023-11-19 03:56:47,815 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:56:47,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:56:47,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:56:47,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:56:47,829 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,841 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,852 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:56:47,853 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:56:47,853 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:56:47,854 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:56:47,854 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:47" (1/1) ... [2023-11-19 03:56:47,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:56:47,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:56:47,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:56:47,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:56:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:56:47,959 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:56:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:56:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:56:47,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:56:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:56:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:56:48,123 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:56:48,125 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:56:48,367 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:56:48,713 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:56:48,713 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:56:48,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:56:48 BoogieIcfgContainer [2023-11-19 03:56:48,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:56:48,720 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:56:48,721 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:56:48,731 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:56:48,733 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:56:48" (1/1) ... [2023-11-19 03:56:48,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:56:48,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:48,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 03:56:48,812 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 03:56:48,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:56:48,816 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:48,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:56:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:56:49,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:56:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:56:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:56:49,428 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:56:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:56:49,486 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:56:49,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:56:49 ImpRootNode [2023-11-19 03:56:49,522 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:56:49,524 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:56:49,524 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:56:49,525 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:56:49,526 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:56:48" (3/4) ... [2023-11-19 03:56:49,531 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:56:49,533 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:56:49,534 INFO L158 Benchmark]: Toolchain (without parser) took 3326.23ms. Allocated memory is still 192.9MB. Free memory was 143.7MB in the beginning and 100.7MB in the end (delta: 42.9MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2023-11-19 03:56:49,535 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 192.9MB. Free memory is still 167.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:56:49,535 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1509.57ms. Allocated memory is still 192.9MB. Free memory was 143.7MB in the beginning and 80.4MB in the end (delta: 63.3MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-19 03:56:49,536 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.07ms. Allocated memory is still 192.9MB. Free memory was 80.4MB in the beginning and 77.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:56:49,538 INFO L158 Benchmark]: Boogie Preprocessor took 36.30ms. Allocated memory is still 192.9MB. Free memory was 77.0MB in the beginning and 75.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:56:49,538 INFO L158 Benchmark]: RCFGBuilder took 865.69ms. Allocated memory is still 192.9MB. Free memory was 75.8MB in the beginning and 136.4MB in the end (delta: -60.6MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2023-11-19 03:56:49,540 INFO L158 Benchmark]: CodeCheck took 801.56ms. Allocated memory is still 192.9MB. Free memory was 136.4MB in the beginning and 100.7MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-19 03:56:49,540 INFO L158 Benchmark]: Witness Printer took 8.82ms. Allocated memory is still 192.9MB. Free memory was 100.7MB in the beginning and 100.7MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:56:49,545 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: 1572]: 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)=13, argc=13, argv={12:14}, argv={12:14}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_52_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_52b_badSink(data) [L1567] CALL CWE191_Integer_Underflow__int_rand_predec_52c_badSink(data) [L1572] --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 0.27ms. Allocated memory is still 192.9MB. Free memory is still 167.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1509.57ms. Allocated memory is still 192.9MB. Free memory was 143.7MB in the beginning and 80.4MB in the end (delta: 63.3MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.07ms. Allocated memory is still 192.9MB. Free memory was 80.4MB in the beginning and 77.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.30ms. Allocated memory is still 192.9MB. Free memory was 77.0MB in the beginning and 75.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 865.69ms. Allocated memory is still 192.9MB. Free memory was 75.8MB in the beginning and 136.4MB in the end (delta: -60.6MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * CodeCheck took 801.56ms. Allocated memory is still 192.9MB. Free memory was 136.4MB in the beginning and 100.7MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 8.82ms. Allocated memory is still 192.9MB. Free memory was 100.7MB in the beginning and 100.7MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 03:56:49,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3e36a199aa0ccdd77af56159f0b4bbf8a4cac90e77a9fae4396e11976ef891d5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:56:52,348 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:56:52,495 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-19 03:56:52,558 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:56:52,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:56:52,561 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:56:52,562 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:56:52,562 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:56:52,563 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:56:52,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:56:52,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:56:52,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:56:52,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:56:52,572 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:56:52,573 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:56:52,573 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:56:52,574 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:56:52,574 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:56:52,575 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:56:52,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:56:52,576 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:56:52,577 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:56:52,577 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:56:52,578 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:56:52,578 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:56:52,579 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:56:52,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:56:52,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:56:52,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:56:52,581 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:56:52,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:56:52,582 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:56:52,583 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:56:52,583 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:56:52,584 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:56:52,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:56:52,584 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_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e36a199aa0ccdd77af56159f0b4bbf8a4cac90e77a9fae4396e11976ef891d5 [2023-11-19 03:56:53,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:56:53,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:56:53,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:56:53,093 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:56:53,094 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:56:53,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_52_bad.i [2023-11-19 03:56:56,471 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:56:57,066 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:56:57,067 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_52_bad.i [2023-11-19 03:56:57,108 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/data/5e6c12e8c/0a11fc88bb1841969af9828836bdf636/FLAG31e613849 [2023-11-19 03:56:57,135 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/data/5e6c12e8c/0a11fc88bb1841969af9828836bdf636 [2023-11-19 03:56:57,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:56:57,147 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:56:57,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:56:57,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:56:57,158 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:56:57,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:56:57" (1/1) ... [2023-11-19 03:56:57,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ea19ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:57, skipping insertion in model container [2023-11-19 03:56:57,161 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:56:57" (1/1) ... [2023-11-19 03:56:57,249 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:56:57,807 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:56:58,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:56:58,466 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:56:58,489 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:56:58,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:56:58,705 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:56:58,705 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:56:58,706 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:56:58,706 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:56:58,706 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:56:58,715 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:56:58,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:58 WrapperNode [2023-11-19 03:56:58,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:56:58,717 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:56:58,718 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:56:58,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:56:58,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:58" (1/1) ... [2023-11-19 03:56:58,763 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:58" (1/1) ... [2023-11-19 03:56:58,793 INFO L138 Inliner]: procedures = 506, calls = 58, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 61 [2023-11-19 03:56:58,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:56:58,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:56:58,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:56:58,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:56:58,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:58" (1/1) ... [2023-11-19 03:56:58,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:58" (1/1) ... [2023-11-19 03:56:58,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:58" (1/1) ... [2023-11-19 03:56:58,822 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:58" (1/1) ... [2023-11-19 03:56:58,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:58" (1/1) ... [2023-11-19 03:56:58,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:58" (1/1) ... [2023-11-19 03:56:58,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:58" (1/1) ... [2023-11-19 03:56:58,847 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:58" (1/1) ... [2023-11-19 03:56:58,852 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:56:58,853 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:56:58,853 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:56:58,854 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:56:58,855 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:58" (1/1) ... [2023-11-19 03:56:58,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:56:58,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:56:58,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:56:58,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:56:58,938 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:56:58,939 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:56:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:56:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:56:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:56:58,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:56:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:56:59,183 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:56:59,186 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:56:59,433 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:56:59,522 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:56:59,530 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:56:59,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:56:59 BoogieIcfgContainer [2023-11-19 03:56:59,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:56:59,537 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:56:59,538 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:56:59,549 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:56:59,549 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:56:59" (1/1) ... [2023-11-19 03:56:59,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:56:59,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:56:59,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 03:56:59,632 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 03:56:59,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:56:59,637 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:56:59,637 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:56:59,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:56:59,638 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:56:59,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:56:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:56:59,819 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:56:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:00,005 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:57:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:00,049 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:57:00,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-19 03:57:00,053 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:57:00,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:57:00 ImpRootNode [2023-11-19 03:57:00,093 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:57:00,096 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:57:00,096 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:57:00,096 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:57:00,097 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:56:59" (3/4) ... [2023-11-19 03:57:00,098 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:57:00,177 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:57:00,177 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:57:00,178 INFO L158 Benchmark]: Toolchain (without parser) took 3031.33ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 53.9MB in the beginning and 57.3MB in the end (delta: -3.3MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2023-11-19 03:57:00,179 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 81.8MB. Free memory is still 56.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:57:00,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1565.44ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 53.7MB in the beginning and 66.9MB in the end (delta: -13.2MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2023-11-19 03:57:00,180 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.07ms. Allocated memory is still 109.1MB. Free memory was 66.9MB in the beginning and 63.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:57:00,180 INFO L158 Benchmark]: Boogie Preprocessor took 57.35ms. Allocated memory is still 109.1MB. Free memory was 63.2MB in the beginning and 61.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:57:00,181 INFO L158 Benchmark]: RCFGBuilder took 682.57ms. Allocated memory is still 109.1MB. Free memory was 61.6MB in the beginning and 75.2MB in the end (delta: -13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 03:57:00,181 INFO L158 Benchmark]: CodeCheck took 556.22ms. Allocated memory is still 109.1MB. Free memory was 75.2MB in the beginning and 58.8MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 03:57:00,182 INFO L158 Benchmark]: Witness Printer took 81.41ms. Allocated memory is still 109.1MB. Free memory was 58.8MB in the beginning and 57.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:00,191 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1572]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1559] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_52_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_52b_badSink(data) [L1567] CALL CWE191_Integer_Underflow__int_rand_predec_52c_badSink(data) [L1572] --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 0.76ms. Allocated memory is still 81.8MB. Free memory is still 56.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1565.44ms. Allocated memory was 81.8MB in the beginning and 109.1MB in the end (delta: 27.3MB). Free memory was 53.7MB in the beginning and 66.9MB in the end (delta: -13.2MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.07ms. Allocated memory is still 109.1MB. Free memory was 66.9MB in the beginning and 63.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.35ms. Allocated memory is still 109.1MB. Free memory was 63.2MB in the beginning and 61.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 682.57ms. Allocated memory is still 109.1MB. Free memory was 61.6MB in the beginning and 75.2MB in the end (delta: -13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 556.22ms. Allocated memory is still 109.1MB. Free memory was 75.2MB in the beginning and 58.8MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 81.41ms. Allocated memory is still 109.1MB. Free memory was 58.8MB in the beginning and 57.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 03:57:00,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c728a6-517c-4644-b908-4f35993178b4/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)