./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9 --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 529c5f153063cc5ff6c3961268cce7a1a9eb1b4894b5183b16333d385eaddca4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:05:38,707 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:05:38,792 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-02 22:05:38,797 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 22:05:38,797 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 22:05:38,820 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:05:38,821 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 22:05:38,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 22:05:38,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:05:38,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:05:38,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:05:38,824 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:05:38,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:05:38,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:05:38,826 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:05:38,826 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:05:38,827 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:05:38,827 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 22:05:38,828 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 22:05:38,828 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:05:38,828 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:05:38,829 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:05:38,830 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:05:38,830 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:05:38,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:05:38,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:05:38,831 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:05:38,832 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:05:38,832 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 22:05:38,832 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 22:05:38,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 22:05:38,833 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 22:05:38,833 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_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 529c5f153063cc5ff6c3961268cce7a1a9eb1b4894b5183b16333d385eaddca4 [2023-12-02 22:05:39,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:05:39,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:05:39,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:05:39,084 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:05:39,085 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:05:39,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_bad.i [2023-12-02 22:05:41,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:05:42,130 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:05:42,131 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_bad.i [2023-12-02 22:05:42,152 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/data/8eec3fb97/c67bb4baaaa1454688a33c796ddc48c0/FLAG65567a879 [2023-12-02 22:05:42,164 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/data/8eec3fb97/c67bb4baaaa1454688a33c796ddc48c0 [2023-12-02 22:05:42,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:05:42,168 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:05:42,169 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:05:42,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:05:42,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:05:42,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:05:42" (1/1) ... [2023-12-02 22:05:42,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d0ef07e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:42, skipping insertion in model container [2023-12-02 22:05:42,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:05:42" (1/1) ... [2023-12-02 22:05:42,228 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:05:43,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:05:43,022 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:05:43,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:05:43,191 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:05:43,191 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:05:43,191 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:05:43,192 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:05:43,197 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:05:43,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:43 WrapperNode [2023-12-02 22:05:43,198 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:05:43,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:05:43,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:05:43,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:05:43,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:43" (1/1) ... [2023-12-02 22:05:43,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:43" (1/1) ... [2023-12-02 22:05:43,255 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 97 [2023-12-02 22:05:43,256 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:05:43,256 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:05:43,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:05:43,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:05:43,264 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:43" (1/1) ... [2023-12-02 22:05:43,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:43" (1/1) ... [2023-12-02 22:05:43,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:43" (1/1) ... [2023-12-02 22:05:43,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:43" (1/1) ... [2023-12-02 22:05:43,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:43" (1/1) ... [2023-12-02 22:05:43,276 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:43" (1/1) ... [2023-12-02 22:05:43,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:43" (1/1) ... [2023-12-02 22:05:43,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:43" (1/1) ... [2023-12-02 22:05:43,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:05:43,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:05:43,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:05:43,284 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:05:43,285 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:43" (1/1) ... [2023-12-02 22:05:43,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:05:43,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:05:43,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:05:43,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:05:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 22:05:43,347 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 22:05:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:05:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:05:43,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:05:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 22:05:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 22:05:43,482 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:05:43,484 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:05:43,672 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:05:43,830 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:05:43,830 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 22:05:43,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:05:43 BoogieIcfgContainer [2023-12-02 22:05:43,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:05:43,832 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:05:43,833 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:05:43,842 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:05:43,842 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:05:43" (1/1) ... [2023-12-02 22:05:43,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:05:43,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:05:43,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-12-02 22:05:43,918 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-12-02 22:05:43,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:05:43,923 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:05:43,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:05:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:05:44,146 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 22:05:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:05:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:05:44,304 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 22:05:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:05:44,355 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-02 22:05:44,375 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet111 [2023-12-02 22:05:44,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 10:05:44 ImpRootNode [2023-12-02 22:05:44,381 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 22:05:44,381 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 22:05:44,381 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 22:05:44,382 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 22:05:44,382 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:05:43" (3/4) ... [2023-12-02 22:05:44,384 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 22:05:44,385 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 22:05:44,386 INFO L158 Benchmark]: Toolchain (without parser) took 2218.02ms. Allocated memory is still 176.2MB. Free memory was 135.0MB in the beginning and 111.4MB in the end (delta: 23.6MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2023-12-02 22:05:44,386 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:05:44,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1029.09ms. Allocated memory is still 176.2MB. Free memory was 135.0MB in the beginning and 94.6MB in the end (delta: 40.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-12-02 22:05:44,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.10ms. Allocated memory is still 176.2MB. Free memory was 94.6MB in the beginning and 91.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 22:05:44,388 INFO L158 Benchmark]: Boogie Preprocessor took 26.76ms. Allocated memory is still 176.2MB. Free memory was 91.1MB in the beginning and 89.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:05:44,389 INFO L158 Benchmark]: RCFGBuilder took 547.60ms. Allocated memory is still 176.2MB. Free memory was 89.8MB in the beginning and 52.7MB in the end (delta: 37.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-12-02 22:05:44,389 INFO L158 Benchmark]: CodeCheck took 548.25ms. Allocated memory is still 176.2MB. Free memory was 52.7MB in the beginning and 111.4MB in the end (delta: -58.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:05:44,390 INFO L158 Benchmark]: Witness Printer took 4.01ms. Allocated memory is still 176.2MB. Free memory is still 111.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:05:44,393 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, 14 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, 7 NumberOfCodeBlocks, 7 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 large string literal at line 1561, overapproximation of bitwiseOr at line 1554. 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); [L1548] int CWE191_Integer_Underflow__int_rand_predec_22_badGlobal = 0; [L1561] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=0, 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 [CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=14, argc=14, argv={13:16}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] CALL CWE191_Integer_Underflow__int_rand_predec_22_bad() [L1552] int data; [L1553] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1555] CWE191_Integer_Underflow__int_rand_predec_22_badGlobal = 1 [L1556] CALL CWE191_Integer_Underflow__int_rand_predec_22_badSink(data) [L1569] COND TRUE \read(CWE191_Integer_Underflow__int_rand_predec_22_badGlobal) VAL [CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=1, 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] [L1572] --data VAL [CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=1, 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 0.16ms. Allocated memory is still 117.4MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1029.09ms. Allocated memory is still 176.2MB. Free memory was 135.0MB in the beginning and 94.6MB in the end (delta: 40.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.10ms. Allocated memory is still 176.2MB. Free memory was 94.6MB in the beginning and 91.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.76ms. Allocated memory is still 176.2MB. Free memory was 91.1MB in the beginning and 89.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 547.60ms. Allocated memory is still 176.2MB. Free memory was 89.8MB in the beginning and 52.7MB in the end (delta: 37.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * CodeCheck took 548.25ms. Allocated memory is still 176.2MB. Free memory was 52.7MB in the beginning and 111.4MB in the end (delta: -58.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.01ms. Allocated memory is still 176.2MB. Free memory is still 111.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet111 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 22:05:44,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/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_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9 --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 529c5f153063cc5ff6c3961268cce7a1a9eb1b4894b5183b16333d385eaddca4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:05:46,454 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:05:46,535 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-02 22:05:46,570 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:05:46,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 22:05:46,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 22:05:46,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:05:46,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:05:46,574 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:05:46,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:05:46,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:05:46,576 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:05:46,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:05:46,577 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:05:46,578 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 22:05:46,578 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 22:05:46,579 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 22:05:46,580 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 22:05:46,580 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 22:05:46,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:05:46,581 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:05:46,582 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:05:46,583 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:05:46,583 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:05:46,584 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:05:46,584 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 22:05:46,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:05:46,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:05:46,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:05:46,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:05:46,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 22:05:46,587 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 22:05:46,587 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:05:46,588 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 22:05:46,588 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 22:05:46,588 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 22:05:46,589 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_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 529c5f153063cc5ff6c3961268cce7a1a9eb1b4894b5183b16333d385eaddca4 [2023-12-02 22:05:46,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:05:46,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:05:46,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:05:46,905 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:05:46,905 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:05:46,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_bad.i [2023-12-02 22:05:49,706 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:05:50,045 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:05:50,046 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_bad.i [2023-12-02 22:05:50,070 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/data/6e9371534/616518553bef4a699e0c080a6ec4f247/FLAG6f3054cf4 [2023-12-02 22:05:50,083 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/data/6e9371534/616518553bef4a699e0c080a6ec4f247 [2023-12-02 22:05:50,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:05:50,087 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:05:50,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:05:50,088 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:05:50,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:05:50,092 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:05:50" (1/1) ... [2023-12-02 22:05:50,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d7f29f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:50, skipping insertion in model container [2023-12-02 22:05:50,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:05:50" (1/1) ... [2023-12-02 22:05:50,145 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:05:50,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:05:50,942 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:05:51,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:05:51,146 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:05:51,146 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:05:51,146 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:05:51,146 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:05:51,152 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:05:51,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:51 WrapperNode [2023-12-02 22:05:51,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:05:51,153 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:05:51,153 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:05:51,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:05:51,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:51" (1/1) ... [2023-12-02 22:05:51,188 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:51" (1/1) ... [2023-12-02 22:05:51,211 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2023-12-02 22:05:51,212 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:05:51,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:05:51,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:05:51,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:05:51,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:51" (1/1) ... [2023-12-02 22:05:51,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:51" (1/1) ... [2023-12-02 22:05:51,224 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:51" (1/1) ... [2023-12-02 22:05:51,224 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:51" (1/1) ... [2023-12-02 22:05:51,234 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:51" (1/1) ... [2023-12-02 22:05:51,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:51" (1/1) ... [2023-12-02 22:05:51,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:51" (1/1) ... [2023-12-02 22:05:51,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:51" (1/1) ... [2023-12-02 22:05:51,246 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:05:51,247 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:05:51,247 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:05:51,247 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:05:51,248 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:51" (1/1) ... [2023-12-02 22:05:51,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:05:51,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:05:51,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:05:51,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:05:51,314 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 22:05:51,314 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 22:05:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 22:05:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:05:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:05:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:05:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 22:05:51,469 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:05:51,471 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:05:51,594 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:05:51,660 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:05:51,660 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 22:05:51,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:05:51 BoogieIcfgContainer [2023-12-02 22:05:51,662 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:05:51,663 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:05:51,663 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:05:51,671 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:05:51,671 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:05:51" (1/1) ... [2023-12-02 22:05:51,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:05:51,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:05:51,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-12-02 22:05:51,725 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-12-02 22:05:51,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:05:51,729 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:05:51,729 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:05:51,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:05:51,731 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:05:51,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 22:05:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:05:51,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 22:05:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:05:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:05:52,066 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 22:05:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:05:52,107 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 22:05:52,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 22:05:52,112 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-02 22:05:52,134 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet105 [2023-12-02 22:05:52,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 10:05:52 ImpRootNode [2023-12-02 22:05:52,140 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 22:05:52,141 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 22:05:52,141 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 22:05:52,141 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 22:05:52,142 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:05:51" (3/4) ... [2023-12-02 22:05:52,144 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 22:05:52,145 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 22:05:52,146 INFO L158 Benchmark]: Toolchain (without parser) took 2059.40ms. Allocated memory is still 100.7MB. Free memory was 73.4MB in the beginning and 52.4MB in the end (delta: 20.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2023-12-02 22:05:52,147 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 71.3MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:05:52,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1065.08ms. Allocated memory is still 100.7MB. Free memory was 73.1MB in the beginning and 60.6MB in the end (delta: 12.4MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2023-12-02 22:05:52,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.37ms. Allocated memory is still 100.7MB. Free memory was 60.6MB in the beginning and 57.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 22:05:52,148 INFO L158 Benchmark]: Boogie Preprocessor took 33.95ms. Allocated memory is still 100.7MB. Free memory was 57.5MB in the beginning and 55.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 22:05:52,149 INFO L158 Benchmark]: RCFGBuilder took 415.35ms. Allocated memory is still 100.7MB. Free memory was 55.4MB in the beginning and 69.2MB in the end (delta: -13.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-12-02 22:05:52,150 INFO L158 Benchmark]: CodeCheck took 477.26ms. Allocated memory is still 100.7MB. Free memory was 68.8MB in the beginning and 52.4MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 22:05:52,150 INFO L158 Benchmark]: Witness Printer took 4.41ms. Allocated memory is still 100.7MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:05:52,154 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, 14 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, 7 NumberOfCodeBlocks, 7 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 large string literal at line 1561. 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); [L1548] int CWE191_Integer_Underflow__int_rand_predec_22_badGlobal = 0; [L1561] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=0, 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 [CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=0, 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_predec_22_bad() [L1552] int data; [L1553] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1555] CWE191_Integer_Underflow__int_rand_predec_22_badGlobal = 1 [L1556] CALL CWE191_Integer_Underflow__int_rand_predec_22_badSink(data) [L1569] COND TRUE \read(CWE191_Integer_Underflow__int_rand_predec_22_badGlobal) VAL [CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=1, 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] [L1572] --data VAL [CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=1, 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 0.20ms. Allocated memory is still 71.3MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1065.08ms. Allocated memory is still 100.7MB. Free memory was 73.1MB in the beginning and 60.6MB in the end (delta: 12.4MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.37ms. Allocated memory is still 100.7MB. Free memory was 60.6MB in the beginning and 57.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.95ms. Allocated memory is still 100.7MB. Free memory was 57.5MB in the beginning and 55.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 415.35ms. Allocated memory is still 100.7MB. Free memory was 55.4MB in the beginning and 69.2MB in the end (delta: -13.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * CodeCheck took 477.26ms. Allocated memory is still 100.7MB. Free memory was 68.8MB in the beginning and 52.4MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.41ms. Allocated memory is still 100.7MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet105 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 22:05:52,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba4eae48-c8b5-46bd-aa51-23ebb0b487e8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample