./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/selectionsort_unsafe.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 153befabdb18c1c2f846632066e19b90cbc378dfb8679471b93a472fb2c83770 ........................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:00:41,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:00:41,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:00:41,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:00:41,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:00:41,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:00:41,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:00:41,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:00:41,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:00:41,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:00:41,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:00:41,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:00:41,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:00:41,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:00:41,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:00:41,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:00:41,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:00:41,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:00:41,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:00:41,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:00:41,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:00:41,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:00:41,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:00:41,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:00:41,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:00:41,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:00:41,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:00:41,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:00:41,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:00:41,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:00:41,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:00:41,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:00:41,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:00:41,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:00:41,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:00:41,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:00:41,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:00:41,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:00:41,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:00:41,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:00:41,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:00:41,533 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:00:41,587 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:00:41,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:00:41,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:00:41,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:00:41,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:00:41,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:00:41,600 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:00:41,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:00:41,601 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:00:41,601 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:00:41,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:00:41,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:00:41,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:00:41,603 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:00:41,603 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:00:41,603 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:00:41,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:00:41,604 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:00:41,604 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:00:41,604 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:00:41,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:00:41,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:00:41,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:00:41,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:00:41,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:00:41,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:00:41,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:00:41,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:00:41,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:00:41,606 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_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153befabdb18c1c2f846632066e19b90cbc378dfb8679471b93a472fb2c83770 [2021-10-28 23:00:41,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:00:41,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:00:41,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:00:41,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:00:41,936 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:00:41,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/array-memsafety/selectionsort_unsafe.c [2021-10-28 23:00:42,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/data/9a9c7db11/463c8dc337b7400582ee1f75c01f5810/FLAG7614594a4 [2021-10-28 23:00:42,569 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:00:42,569 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/sv-benchmarks/c/array-memsafety/selectionsort_unsafe.c [2021-10-28 23:00:42,576 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/data/9a9c7db11/463c8dc337b7400582ee1f75c01f5810/FLAG7614594a4 [2021-10-28 23:00:42,934 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/data/9a9c7db11/463c8dc337b7400582ee1f75c01f5810 [2021-10-28 23:00:42,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:00:42,940 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:00:42,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:00:42,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:00:42,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:00:42,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:00:42" (1/1) ... [2021-10-28 23:00:42,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ec9bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:42, skipping insertion in model container [2021-10-28 23:00:42,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:00:42" (1/1) ... [2021-10-28 23:00:42,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:00:42,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:00:43,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:00:43,225 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:00:43,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:00:43,258 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:00:43,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:43 WrapperNode [2021-10-28 23:00:43,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:00:43,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:00:43,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:00:43,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:00:43,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:43" (1/1) ... [2021-10-28 23:00:43,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:43" (1/1) ... [2021-10-28 23:00:43,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:43" (1/1) ... [2021-10-28 23:00:43,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:43" (1/1) ... [2021-10-28 23:00:43,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:43" (1/1) ... [2021-10-28 23:00:43,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:43" (1/1) ... [2021-10-28 23:00:43,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:43" (1/1) ... [2021-10-28 23:00:43,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:00:43,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:00:43,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:00:43,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:00:43,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:43" (1/1) ... [2021-10-28 23:00:43,344 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:00:43,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:00:43,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:00:43,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:00:43,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:00:43,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:00:43,441 INFO L138 BoogieDeclarations]: Found implementation of procedure SelectionSort [2021-10-28 23:00:43,441 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:00:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:00:43,441 INFO L130 BoogieDeclarations]: Found specification of procedure SelectionSort [2021-10-28 23:00:43,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:00:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:00:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:00:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:00:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:00:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:00:43,772 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:00:43,773 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-10-28 23:00:43,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:00:43 BoogieIcfgContainer [2021-10-28 23:00:43,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:00:43,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:00:43,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:00:43,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:00:43,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:00:42" (1/3) ... [2021-10-28 23:00:43,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d9499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:00:43, skipping insertion in model container [2021-10-28 23:00:43,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:43" (2/3) ... [2021-10-28 23:00:43,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d9499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:00:43, skipping insertion in model container [2021-10-28 23:00:43,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:00:43" (3/3) ... [2021-10-28 23:00:43,795 INFO L111 eAbstractionObserver]: Analyzing ICFG selectionsort_unsafe.c [2021-10-28 23:00:43,802 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:00:43,816 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-10-28 23:00:43,921 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:00:43,930 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:00:43,930 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-10-28 23:00:43,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 34 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 23:00:43,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:00:43,960 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:00:43,961 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:00:43,962 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting SelectionSortErr4REQUIRES_VIOLATION === [SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION (and 9 more)] === [2021-10-28 23:00:43,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:00:43,970 INFO L85 PathProgramCache]: Analyzing trace with hash 229154885, now seen corresponding path program 1 times [2021-10-28 23:00:43,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:00:43,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394549511] [2021-10-28 23:00:43,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:00:43,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:00:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:00:44,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:00:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:00:44,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:00:44,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:00:44,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394549511] [2021-10-28 23:00:44,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394549511] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:00:44,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:00:44,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:00:44,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201094528] [2021-10-28 23:00:44,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:00:44,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:00:44,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:00:44,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:00:44,367 INFO L87 Difference]: Start difference. First operand has 41 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 34 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:00:44,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:00:44,547 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2021-10-28 23:00:44,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:00:44,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-10-28 23:00:44,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:00:44,576 INFO L225 Difference]: With dead ends: 41 [2021-10-28 23:00:44,576 INFO L226 Difference]: Without dead ends: 34 [2021-10-28 23:00:44,579 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:00:44,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-28 23:00:44,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-28 23:00:44,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 29 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:00:44,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2021-10-28 23:00:44,617 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 11 [2021-10-28 23:00:44,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:00:44,618 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2021-10-28 23:00:44,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:00:44,619 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2021-10-28 23:00:44,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:00:44,620 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:00:44,620 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:00:44,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:00:44,620 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting SelectionSortErr0REQUIRES_VIOLATION === [SelectionSortErr0REQUIRES_VIOLATION, SelectionSortErr1REQUIRES_VIOLATION, SelectionSortErr2REQUIRES_VIOLATION, SelectionSortErr3REQUIRES_VIOLATION (and 9 more)] === [2021-10-28 23:00:44,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:00:44,621 INFO L85 PathProgramCache]: Analyzing trace with hash 229154931, now seen corresponding path program 1 times [2021-10-28 23:00:44,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:00:44,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543679091] [2021-10-28 23:00:44,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:00:44,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:00:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:00:44,659 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:00:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:00:44,707 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:00:44,707 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:00:44,710 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location SelectionSortErr0REQUIRES_VIOLATION [2021-10-28 23:00:44,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location SelectionSortErr1REQUIRES_VIOLATION [2021-10-28 23:00:44,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location SelectionSortErr2REQUIRES_VIOLATION [2021-10-28 23:00:44,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location SelectionSortErr3REQUIRES_VIOLATION [2021-10-28 23:00:44,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location SelectionSortErr4REQUIRES_VIOLATION [2021-10-28 23:00:44,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location SelectionSortErr5REQUIRES_VIOLATION [2021-10-28 23:00:44,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location SelectionSortErr6REQUIRES_VIOLATION [2021-10-28 23:00:44,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location SelectionSortErr7REQUIRES_VIOLATION [2021-10-28 23:00:44,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location SelectionSortErr8REQUIRES_VIOLATION [2021-10-28 23:00:44,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location SelectionSortErr9REQUIRES_VIOLATION [2021-10-28 23:00:44,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location SelectionSortErr10REQUIRES_VIOLATION [2021-10-28 23:00:44,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location SelectionSortErr11REQUIRES_VIOLATION [2021-10-28 23:00:44,716 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:00:44,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:00:44,721 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 23:00:44,726 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:00:44,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:00:44 BoogieIcfgContainer [2021-10-28 23:00:44,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:00:44,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:00:44,756 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:00:44,756 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:00:44,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:00:43" (3/4) ... [2021-10-28 23:00:44,759 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:00:44,830 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:00:44,830 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:00:44,832 INFO L168 Benchmark]: Toolchain (without parser) took 1890.71 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 57.7 MB in the beginning and 91.0 MB in the end (delta: -33.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:00:44,833 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory was 61.6 MB in the beginning and 61.5 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:00:44,834 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.09 ms. Allocated memory is still 92.3 MB. Free memory was 57.6 MB in the beginning and 68.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:00:44,835 INFO L168 Benchmark]: Boogie Preprocessor took 62.22 ms. Allocated memory is still 92.3 MB. Free memory was 68.4 MB in the beginning and 66.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:00:44,835 INFO L168 Benchmark]: RCFGBuilder took 445.04 ms. Allocated memory is still 92.3 MB. Free memory was 66.8 MB in the beginning and 56.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:00:44,836 INFO L168 Benchmark]: TraceAbstraction took 975.40 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 56.0 MB in the beginning and 92.5 MB in the end (delta: -36.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:00:44,837 INFO L168 Benchmark]: Witness Printer took 75.70 ms. Allocated memory is still 123.7 MB. Free memory was 92.5 MB in the beginning and 91.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:00:44,845 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory was 61.6 MB in the beginning and 61.5 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 322.09 ms. Allocated memory is still 92.3 MB. Free memory was 57.6 MB in the beginning and 68.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.22 ms. Allocated memory is still 92.3 MB. Free memory was 68.4 MB in the beginning and 66.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 445.04 ms. Allocated memory is still 92.3 MB. Free memory was 66.8 MB in the beginning and 56.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 975.40 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 56.0 MB in the beginning and 92.5 MB in the end (delta: -36.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 75.70 ms. Allocated memory is still 123.7 MB. Free memory was 92.5 MB in the beginning and 91.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 12]: 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) VAL [\old(array_size)=2, a={4:5}] [L5] int i; [L6] i = 0 VAL [\old(array_size)=2, a={4:5}, a={4:5}, 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={4:5}, a={4:5}, array_size=2, i=0, j=1, min=0] [L10] COND TRUE j < array_size VAL [\old(array_size)=2, a={4:5}, a={4:5}, array_size=2, i=0, j=1, min=0] [L12] a[j] - UnprovableResult [Line: 12]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 16]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 16]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 41 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 42 SDslu, 10 SDs, 0 SdLazy, 45 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:00:44,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2a6b6d5-d48e-4c29-a329-32630d7fdd0a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...