./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/diff_usafe.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/diff_usafe.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60b44baec8d5c42666f1f962a9b95cfd7e6c75178322ade094b7a047963f4b64 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:37:43,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:37:43,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:37:43,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:37:43,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:37:43,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:37:43,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:37:43,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:37:43,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:37:43,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:37:43,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:37:43,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:37:43,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:37:43,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:37:43,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:37:43,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:37:43,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:37:43,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:37:43,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:37:43,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:37:43,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:37:43,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:37:43,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:37:43,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:37:43,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:37:43,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:37:43,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:37:43,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:37:43,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:37:43,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:37:43,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:37:43,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:37:43,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:37:43,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:37:43,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:37:43,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:37:43,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:37:43,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:37:43,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:37:43,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:37:43,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:37:43,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 00:37:43,506 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:37:43,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:37:43,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:37:43,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:37:43,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:37:43,511 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:37:43,511 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 00:37:43,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:37:43,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:37:43,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:37:43,513 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 00:37:43,513 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 00:37:43,513 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 00:37:43,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:37:43,514 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:37:43,514 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:37:43,514 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:37:43,514 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:37:43,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:37:43,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:37:43,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:37:43,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:37:43,516 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:37:43,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:37:43,516 INFO L138 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_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60b44baec8d5c42666f1f962a9b95cfd7e6c75178322ade094b7a047963f4b64 [2021-11-23 00:37:43,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:37:43,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:37:43,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:37:43,795 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:37:43,795 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:37:43,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/array-memsafety/diff_usafe.c [2021-11-23 00:37:43,868 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/data/7a3ad979d/c695ffbef08546e180605e380e0fbeea/FLAGa0813270b [2021-11-23 00:37:44,296 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:37:44,296 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/sv-benchmarks/c/array-memsafety/diff_usafe.c [2021-11-23 00:37:44,316 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/data/7a3ad979d/c695ffbef08546e180605e380e0fbeea/FLAGa0813270b [2021-11-23 00:37:44,684 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/data/7a3ad979d/c695ffbef08546e180605e380e0fbeea [2021-11-23 00:37:44,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:37:44,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:37:44,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:37:44,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:37:44,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:37:44,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:37:44" (1/1) ... [2021-11-23 00:37:44,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25fe6259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:44, skipping insertion in model container [2021-11-23 00:37:44,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:37:44" (1/1) ... [2021-11-23 00:37:44,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:37:44,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:37:44,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:37:44,926 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:37:44,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:37:44,953 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:37:44,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:44 WrapperNode [2021-11-23 00:37:44,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:37:44,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:37:44,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:37:44,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:37:44,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:44" (1/1) ... [2021-11-23 00:37:44,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:44" (1/1) ... [2021-11-23 00:37:44,991 INFO L137 Inliner]: procedures = 8, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2021-11-23 00:37:44,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:37:44,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:37:44,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:37:44,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:37:45,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:44" (1/1) ... [2021-11-23 00:37:45,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:44" (1/1) ... [2021-11-23 00:37:45,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:44" (1/1) ... [2021-11-23 00:37:45,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:44" (1/1) ... [2021-11-23 00:37:45,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:44" (1/1) ... [2021-11-23 00:37:45,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:44" (1/1) ... [2021-11-23 00:37:45,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:44" (1/1) ... [2021-11-23 00:37:45,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:37:45,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:37:45,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:37:45,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:37:45,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:37:44" (1/1) ... [2021-11-23 00:37:45,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:37:45,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:37:45,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:37:45,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:37:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 00:37:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:37:45,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:37:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 00:37:45,239 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:37:45,241 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:37:45,423 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:37:45,451 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:37:45,451 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 00:37:45,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:37:45 BoogieIcfgContainer [2021-11-23 00:37:45,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:37:45,454 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:37:45,455 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:37:45,466 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:37:45,466 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:37:45" (1/1) ... [2021-11-23 00:37:45,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:37:45,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:45,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2021-11-23 00:37:45,575 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2021-11-23 00:37:45,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 00:37:45,577 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:45,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:45,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:37:45,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:45,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2021-11-23 00:37:45,762 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-11-23 00:37:45,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 00:37:45,762 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:45,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:37:45,794 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:37:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:37:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:37:45,908 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:37:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:37:45,942 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2021-11-23 00:37:45,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:37:45 ImpRootNode [2021-11-23 00:37:45,975 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:37:45,976 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:37:45,976 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:37:45,976 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:37:45,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:37:45" (3/4) ... [2021-11-23 00:37:45,979 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:37:46,024 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:37:46,025 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:37:46,026 INFO L158 Benchmark]: Toolchain (without parser) took 1336.88ms. Allocated memory is still 98.6MB. Free memory was 64.3MB in the beginning and 41.6MB in the end (delta: 22.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2021-11-23 00:37:46,026 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 98.6MB. Free memory was 71.5MB in the beginning and 71.5MB in the end (delta: 31.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:37:46,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.86ms. Allocated memory is still 98.6MB. Free memory was 64.1MB in the beginning and 75.2MB in the end (delta: -11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:37:46,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.29ms. Allocated memory is still 98.6MB. Free memory was 75.2MB in the beginning and 73.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:37:46,028 INFO L158 Benchmark]: Boogie Preprocessor took 39.54ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 72.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:37:46,029 INFO L158 Benchmark]: RCFGBuilder took 420.45ms. Allocated memory is still 98.6MB. Free memory was 72.2MB in the beginning and 60.5MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 00:37:46,030 INFO L158 Benchmark]: CodeCheck took 520.93ms. Allocated memory is still 98.6MB. Free memory was 60.1MB in the beginning and 43.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 00:37:46,031 INFO L158 Benchmark]: Witness Printer took 48.88ms. Allocated memory is still 98.6MB. Free memory was 43.7MB in the beginning and 41.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:37:46,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 20 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 15]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L30] int *A; [L31] int Alen = __VERIFIER_nondet_int(); [L32] int *B; [L33] int Blen = __VERIFIER_nondet_int(); [L34] int *D; [L35] CALL diff(A, Alen, B, Blen, D) [L5] int k = 0; [L6] int i = 0; [L7] int l1 = Alen; [L8] int l2 = Blen; [L9] int found; VAL [\old(Alen)=1, \old(Blen)=1, A={3:2}, A={3:2}, Alen=1, B={5:4}, B={5:4}, Blen=1, D={6:7}, D={6:7}, i=0, k=0, l1=1, l2=1] [L11] COND TRUE i < l1 [L12] int j = 0; [L13] found = 0 VAL [\old(Alen)=1, \old(Blen)=1, A={3:2}, A={3:2}, Alen=1, B={5:4}, B={5:4}, Blen=1, D={6:7}, D={6:7}, found=0, i=0, j=0, k=0, l1=1, l2=1] [L14] COND TRUE j < l2 && !found VAL [\old(Alen)=1, \old(Blen)=1, A={3:2}, A={3:2}, Alen=1, B={5:4}, B={5:4}, Blen=1, D={6:7}, D={6:7}, found=0, i=0, j=0, k=0, l1=1, l2=1] [L15] A[i] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 98.6MB. Free memory was 71.5MB in the beginning and 71.5MB in the end (delta: 31.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.86ms. Allocated memory is still 98.6MB. Free memory was 64.1MB in the beginning and 75.2MB in the end (delta: -11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.29ms. Allocated memory is still 98.6MB. Free memory was 75.2MB in the beginning and 73.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.54ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 72.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 420.45ms. Allocated memory is still 98.6MB. Free memory was 72.2MB in the beginning and 60.5MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 520.93ms. Allocated memory is still 98.6MB. Free memory was 60.1MB in the beginning and 43.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 48.88ms. Allocated memory is still 98.6MB. Free memory was 43.7MB in the beginning and 41.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 00:37:46,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f767a8e8-1ba2-4955-93cb-620478aaaf0f/bin/ukojak-LBtLqBUTdQ/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(valid-deref)