./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.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_502f64c1-5f09-4800-99be-2644b17cdbd6/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f64c1-5f09-4800-99be-2644b17cdbd6/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_502f64c1-5f09-4800-99be-2644b17cdbd6/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f64c1-5f09-4800-99be-2644b17cdbd6/bin/ukojak-LBtLqBUTdQ/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f64c1-5f09-4800-99be-2644b17cdbd6/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_502f64c1-5f09-4800-99be-2644b17cdbd6/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 07a396ef153f1ca8e856eefcfa25d3d77eb73f779a009e48698bf5ce12969740 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:42:17,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:42:17,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:42:17,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:42:17,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:42:17,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:42:17,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:42:17,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:42:17,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:42:17,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:42:17,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:42:17,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:42:17,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:42:17,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:42:17,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:42:17,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:42:17,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:42:17,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:42:17,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:42:17,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:42:17,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:42:18,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:42:18,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:42:18,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:42:18,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:42:18,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:42:18,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:42:18,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:42:18,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:42:18,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:42:18,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:42:18,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:42:18,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:42:18,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:42:18,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:42:18,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:42:18,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:42:18,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:42:18,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:42:18,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:42:18,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:42:18,019 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f64c1-5f09-4800-99be-2644b17cdbd6/bin/ukojak-LBtLqBUTdQ/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 01:42:18,042 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:42:18,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:42:18,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:42:18,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:42:18,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:42:18,045 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:42:18,045 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 01:42:18,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:42:18,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:42:18,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:42:18,046 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 01:42:18,046 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 01:42:18,046 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 01:42:18,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:42:18,046 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:42:18,046 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:42:18,047 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:42:18,047 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:42:18,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:42:18,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:42:18,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:42:18,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:42:18,048 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:42:18,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:42:18,048 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_502f64c1-5f09-4800-99be-2644b17cdbd6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f64c1-5f09-4800-99be-2644b17cdbd6/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07a396ef153f1ca8e856eefcfa25d3d77eb73f779a009e48698bf5ce12969740 [2021-11-23 01:42:18,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:42:18,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:42:18,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:42:18,322 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:42:18,323 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:42:18,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f64c1-5f09-4800-99be-2644b17cdbd6/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2021-11-23 01:42:18,441 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f64c1-5f09-4800-99be-2644b17cdbd6/bin/ukojak-LBtLqBUTdQ/data/4a2285759/83de13fa564a4697a742fd2628e3a53b/FLAGce5e8855d [2021-11-23 01:42:18,864 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:42:18,865 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f64c1-5f09-4800-99be-2644b17cdbd6/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2021-11-23 01:42:18,871 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f64c1-5f09-4800-99be-2644b17cdbd6/bin/ukojak-LBtLqBUTdQ/data/4a2285759/83de13fa564a4697a742fd2628e3a53b/FLAGce5e8855d [2021-11-23 01:42:19,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f64c1-5f09-4800-99be-2644b17cdbd6/bin/ukojak-LBtLqBUTdQ/data/4a2285759/83de13fa564a4697a742fd2628e3a53b [2021-11-23 01:42:19,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:42:19,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:42:19,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:42:19,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:42:19,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:42:19,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:19" (1/1) ... [2021-11-23 01:42:19,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39130d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:19, skipping insertion in model container [2021-11-23 01:42:19,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:19" (1/1) ... [2021-11-23 01:42:19,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:42:19,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:42:19,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:42:19,506 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:42:19,523 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:42:19,536 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:42:19,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:19 WrapperNode [2021-11-23 01:42:19,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:42:19,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:42:19,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:42:19,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:42:19,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:19" (1/1) ... [2021-11-23 01:42:19,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:19" (1/1) ... [2021-11-23 01:42:19,577 INFO L137 Inliner]: procedures = 9, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2021-11-23 01:42:19,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:42:19,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:42:19,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:42:19,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:42:19,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:19" (1/1) ... [2021-11-23 01:42:19,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:19" (1/1) ... [2021-11-23 01:42:19,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:19" (1/1) ... [2021-11-23 01:42:19,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:19" (1/1) ... [2021-11-23 01:42:19,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:19" (1/1) ... [2021-11-23 01:42:19,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:19" (1/1) ... [2021-11-23 01:42:19,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:19" (1/1) ... [2021-11-23 01:42:19,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:42:19,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:42:19,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:42:19,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:42:19,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:19" (1/1) ... [2021-11-23 01:42:19,615 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:42:19,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f64c1-5f09-4800-99be-2644b17cdbd6/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:42:19,643 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f64c1-5f09-4800-99be-2644b17cdbd6/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:42:19,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f64c1-5f09-4800-99be-2644b17cdbd6/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:42:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:42:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:42:19,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:42:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:42:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:42:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:42:19,797 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:42:19,799 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:42:20,089 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:42:20,139 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:42:20,139 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 01:42:20,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:20 BoogieIcfgContainer [2021-11-23 01:42:20,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:42:20,143 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:42:20,143 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:42:20,154 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:42:20,155 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:20" (1/1) ... [2021-11-23 01:42:20,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:42:20,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:20,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2021-11-23 01:42:20,223 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-11-23 01:42:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 01:42:20,226 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:20,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:20,355 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 01:42:20,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:20,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2021-11-23 01:42:20,401 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2021-11-23 01:42:20,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 01:42:20,403 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:20,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:20,504 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 01:42:20,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:20,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2021-11-23 01:42:20,544 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2021-11-23 01:42:20,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:42:20,544 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:20,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:20,657 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 01:42:20,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:20,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2021-11-23 01:42:20,813 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2021-11-23 01:42:20,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:42:20,813 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:20,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:42:20,840 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:42:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:42:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:42:20,948 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:42:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:42:20,980 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2021-11-23 01:42:21,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:42:21 ImpRootNode [2021-11-23 01:42:21,024 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:42:21,025 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:42:21,025 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:42:21,025 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:42:21,026 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:20" (3/4) ... [2021-11-23 01:42:21,028 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:42:21,081 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f64c1-5f09-4800-99be-2644b17cdbd6/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:42:21,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:42:21,083 INFO L158 Benchmark]: Toolchain (without parser) took 1812.30ms. Allocated memory is still 153.1MB. Free memory was 120.3MB in the beginning and 82.7MB in the end (delta: 37.6MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2021-11-23 01:42:21,083 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 92.3MB. Free memory was 46.5MB in the beginning and 46.5MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:42:21,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.60ms. Allocated memory is still 153.1MB. Free memory was 120.3MB in the beginning and 129.5MB in the end (delta: -9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:42:21,086 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.11ms. Allocated memory is still 153.1MB. Free memory was 129.5MB in the beginning and 127.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:42:21,087 INFO L158 Benchmark]: Boogie Preprocessor took 26.82ms. Allocated memory is still 153.1MB. Free memory was 127.8MB in the beginning and 126.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:42:21,087 INFO L158 Benchmark]: RCFGBuilder took 536.66ms. Allocated memory is still 153.1MB. Free memory was 126.7MB in the beginning and 112.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 01:42:21,088 INFO L158 Benchmark]: CodeCheck took 881.06ms. Allocated memory is still 153.1MB. Free memory was 112.0MB in the beginning and 84.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-23 01:42:21,089 INFO L158 Benchmark]: Witness Printer took 57.14ms. Allocated memory is still 153.1MB. Free memory was 84.7MB in the beginning and 82.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:42:21,092 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, 24 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 4, 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, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 17 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 14]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L32] int i, b[100]; [L33] i = 0 VAL [b={2:0}, i=0] [L33] COND TRUE i < 100 [L34] CALL foo(i, b, i) [L21] int a[n], i; [L22] i = 0 VAL [\old(n)=0, \old(size)=0, a={3:0}, b={2:0}, b={2:0}, i=0, n=0, size=0] [L22] COND FALSE !(i < size) [L25] CALL bar(a, size + 1) [L12] int res = 0, i; [L13] i = 0 VAL [\old(size)=1, b={3:0}, b={3:0}, i=0, res=0, size=1] [L13] COND TRUE i < size VAL [\old(size)=1, b={3:0}, b={3:0}, i=0, res=0, size=1] [L14] b[i] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 92.3MB. Free memory was 46.5MB in the beginning and 46.5MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.60ms. Allocated memory is still 153.1MB. Free memory was 120.3MB in the beginning and 129.5MB in the end (delta: -9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.11ms. Allocated memory is still 153.1MB. Free memory was 129.5MB in the beginning and 127.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.82ms. Allocated memory is still 153.1MB. Free memory was 127.8MB in the beginning and 126.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 536.66ms. Allocated memory is still 153.1MB. Free memory was 126.7MB in the beginning and 112.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 881.06ms. Allocated memory is still 153.1MB. Free memory was 112.0MB in the beginning and 84.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 57.14ms. Allocated memory is still 153.1MB. Free memory was 84.7MB in the beginning and 82.7MB 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 01:42:21,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502f64c1-5f09-4800-99be-2644b17cdbd6/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)