./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/selectionsort_unsafe.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/selectionsort_unsafe.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4 --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 153befabdb18c1c2f846632066e19b90cbc378dfb8679471b93a472fb2c83770 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 23:45:37,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 23:45:37,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 23:45:37,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 23:45:37,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 23:45:37,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 23:45:37,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 23:45:37,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 23:45:37,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 23:45:37,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 23:45:37,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 23:45:37,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 23:45:37,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 23:45:37,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 23:45:37,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 23:45:37,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 23:45:37,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 23:45:37,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 23:45:37,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 23:45:37,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 23:45:37,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 23:45:37,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 23:45:37,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 23:45:37,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 23:45:37,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 23:45:37,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 23:45:37,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 23:45:37,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 23:45:37,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 23:45:37,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 23:45:37,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 23:45:37,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 23:45:37,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 23:45:37,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 23:45:37,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 23:45:37,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 23:45:37,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 23:45:37,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 23:45:37,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 23:45:37,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 23:45:37,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 23:45:37,507 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-12-14 23:45:37,519 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 23:45:37,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 23:45:37,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 23:45:37,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 23:45:37,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 23:45:37,521 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 23:45:37,521 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 23:45:37,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 23:45:37,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 23:45:37,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 23:45:37,521 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 23:45:37,521 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 23:45:37,522 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 23:45:37,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 23:45:37,522 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 23:45:37,522 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 23:45:37,522 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 23:45:37,522 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 23:45:37,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 23:45:37,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:45:37,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 23:45:37,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 23:45:37,523 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 23:45:37,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 23:45:37,523 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_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153befabdb18c1c2f846632066e19b90cbc378dfb8679471b93a472fb2c83770 [2022-12-14 23:45:37,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 23:45:37,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 23:45:37,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 23:45:37,713 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 23:45:37,714 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 23:45:37,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/array-memsafety/selectionsort_unsafe.c [2022-12-14 23:45:40,246 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 23:45:40,417 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 23:45:40,418 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/sv-benchmarks/c/array-memsafety/selectionsort_unsafe.c [2022-12-14 23:45:40,423 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4/data/7d3b190a9/57573b04379048e9a1dd1a516332003e/FLAG5baabd52a [2022-12-14 23:45:40,826 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4/data/7d3b190a9/57573b04379048e9a1dd1a516332003e [2022-12-14 23:45:40,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 23:45:40,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 23:45:40,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 23:45:40,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 23:45:40,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 23:45:40,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:45:40" (1/1) ... [2022-12-14 23:45:40,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51119e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:40, skipping insertion in model container [2022-12-14 23:45:40,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:45:40" (1/1) ... [2022-12-14 23:45:40,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 23:45:40,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 23:45:40,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:45:40,953 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 23:45:40,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:45:40,973 INFO L208 MainTranslator]: Completed translation [2022-12-14 23:45:40,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:40 WrapperNode [2022-12-14 23:45:40,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 23:45:40,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 23:45:40,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 23:45:40,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 23:45:40,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:40" (1/1) ... [2022-12-14 23:45:40,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:40" (1/1) ... [2022-12-14 23:45:40,998 INFO L138 Inliner]: procedures = 8, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2022-12-14 23:45:40,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 23:45:40,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 23:45:40,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 23:45:40,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 23:45:41,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:40" (1/1) ... [2022-12-14 23:45:41,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:40" (1/1) ... [2022-12-14 23:45:41,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:40" (1/1) ... [2022-12-14 23:45:41,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:40" (1/1) ... [2022-12-14 23:45:41,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:40" (1/1) ... [2022-12-14 23:45:41,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:40" (1/1) ... [2022-12-14 23:45:41,013 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:40" (1/1) ... [2022-12-14 23:45:41,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:40" (1/1) ... [2022-12-14 23:45:41,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 23:45:41,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 23:45:41,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 23:45:41,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 23:45:41,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:40" (1/1) ... [2022-12-14 23:45:41,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:45:41,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 23:45:41,038 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 23:45:41,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 23:45:41,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 23:45:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 23:45:41,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 23:45:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 23:45:41,131 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 23:45:41,133 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 23:45:41,262 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 23:45:41,287 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 23:45:41,287 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 23:45:41,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:45:41 BoogieIcfgContainer [2022-12-14 23:45:41,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 23:45:41,289 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 23:45:41,290 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 23:45:41,297 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 23:45:41,297 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:45:41" (1/1) ... [2022-12-14 23:45:41,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 23:45:41,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:45:41,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 24 states and 25 transitions. [2022-12-14 23:45:41,340 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-12-14 23:45:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 23:45:41,341 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:45:41,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:45:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:45:41,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:45:41,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:45:41,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2022-12-14 23:45:41,464 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-12-14 23:45:41,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 23:45:41,464 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:45:41,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:45:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 23:45:41,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 23:45:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 23:45:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 23:45:41,505 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 23:45:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 23:45:41,518 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-12-14 23:45:41,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 11:45:41 ImpRootNode [2022-12-14 23:45:41,535 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 23:45:41,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 23:45:41,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 23:45:41,536 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 23:45:41,536 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:45:41" (3/4) ... [2022-12-14 23:45:41,537 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 23:45:41,561 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 23:45:41,561 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 23:45:41,562 INFO L158 Benchmark]: Toolchain (without parser) took 732.18ms. Allocated memory is still 138.4MB. Free memory was 103.7MB in the beginning and 59.8MB in the end (delta: 43.9MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-12-14 23:45:41,562 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 138.4MB. Free memory is still 109.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 23:45:41,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 143.34ms. Allocated memory is still 138.4MB. Free memory was 103.3MB in the beginning and 93.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 23:45:41,563 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.08ms. Allocated memory is still 138.4MB. Free memory was 93.8MB in the beginning and 92.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 23:45:41,563 INFO L158 Benchmark]: Boogie Preprocessor took 15.91ms. Allocated memory is still 138.4MB. Free memory was 92.0MB in the beginning and 90.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 23:45:41,564 INFO L158 Benchmark]: RCFGBuilder took 274.09ms. Allocated memory is still 138.4MB. Free memory was 90.9MB in the beginning and 77.4MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 23:45:41,564 INFO L158 Benchmark]: CodeCheck took 245.35ms. Allocated memory is still 138.4MB. Free memory was 77.1MB in the beginning and 61.5MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 23:45:41,565 INFO L158 Benchmark]: Witness Printer took 25.64ms. Allocated memory is still 138.4MB. Free memory was 61.5MB in the beginning and 59.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 23:45:41,567 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, 13 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 9 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, 0.0s SatisfiabilityAnalysisTime, 0.0s 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: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L23] int *a; [L24] int array_size = __VERIFIER_nondet_int(); [L25] CALL SelectionSort(a, array_size) [L5] int i; [L6] i = 0 VAL [\old(array_size)=2, a={4:3}, a={4:3}, array_size=2, i=0] [L6] COND TRUE i < array_size - 1 [L8] int j, min, temp; [L9] min = i [L10] j = i+1 VAL [\old(array_size)=2, a={4:3}, a={4:3}, array_size=2, i=0, j=1, min=0] [L10] COND TRUE j < array_size VAL [\old(array_size)=2, a={4:3}, a={4:3}, array_size=2, i=0, j=1, min=0] [L12] a[j] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 138.4MB. Free memory is still 109.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 143.34ms. Allocated memory is still 138.4MB. Free memory was 103.3MB in the beginning and 93.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.08ms. Allocated memory is still 138.4MB. Free memory was 93.8MB in the beginning and 92.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.91ms. Allocated memory is still 138.4MB. Free memory was 92.0MB in the beginning and 90.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 274.09ms. Allocated memory is still 138.4MB. Free memory was 90.9MB in the beginning and 77.4MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 245.35ms. Allocated memory is still 138.4MB. Free memory was 77.1MB in the beginning and 61.5MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 25.64ms. Allocated memory is still 138.4MB. Free memory was 61.5MB in the beginning and 59.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-14 23:45:41,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94e86e8-a0cb-44f8-b39b-3a998a4851c8/bin/ukojak-rkRKPMF4O4/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)