./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB --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 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf --- 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-dbf71c6-m [2022-10-17 16:48:30,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:48:30,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:48:30,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:48:30,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:48:30,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:48:30,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:48:30,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:48:30,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:48:30,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:48:30,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:48:30,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:48:30,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:48:30,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:48:30,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:48:30,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:48:30,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:48:30,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:48:30,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:48:30,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:48:30,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:48:30,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:48:30,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:48:30,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:48:30,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:48:30,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:48:30,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:48:30,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:48:30,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:48:30,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:48:30,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:48:30,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:48:30,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:48:30,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:48:30,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:48:30,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:48:30,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:48:30,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:48:30,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:48:30,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:48:30,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:48:30,428 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-10-17 16:48:30,463 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:48:30,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:48:30,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:48:30,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:48:30,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:48:30,466 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:48:30,466 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:48:30,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:48:30,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:48:30,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:48:30,467 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 16:48:30,467 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 16:48:30,473 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 16:48:30,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:48:30,474 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:48:30,474 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:48:30,474 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:48:30,474 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:48:30,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:48:30,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:48:30,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:48:30,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:48:30,476 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:48:30,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:48:30,476 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_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf [2022-10-17 16:48:30,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:48:30,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:48:30,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:48:30,847 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:48:30,848 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:48:30,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2022-10-17 16:48:30,932 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/data/9ec541d0c/800014ab6a2d4e5ba69b11af0fa6b4fa/FLAG98ee46b0c [2022-10-17 16:48:31,690 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:48:31,691 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2022-10-17 16:48:31,728 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/data/9ec541d0c/800014ab6a2d4e5ba69b11af0fa6b4fa/FLAG98ee46b0c [2022-10-17 16:48:31,872 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/data/9ec541d0c/800014ab6a2d4e5ba69b11af0fa6b4fa [2022-10-17 16:48:31,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:48:31,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:48:31,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:48:31,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:48:31,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:48:31,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:48:31" (1/1) ... [2022-10-17 16:48:31,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e805309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:31, skipping insertion in model container [2022-10-17 16:48:31,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:48:31" (1/1) ... [2022-10-17 16:48:31,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:48:31,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:48:32,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:48:32,532 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:48:32,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:48:32,641 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:48:32,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:32 WrapperNode [2022-10-17 16:48:32,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:48:32,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:48:32,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:48:32,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:48:32,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:32" (1/1) ... [2022-10-17 16:48:32,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:32" (1/1) ... [2022-10-17 16:48:32,695 INFO L138 Inliner]: procedures = 166, calls = 71, calls flagged for inlining = 31, calls inlined = 6, statements flattened = 33 [2022-10-17 16:48:32,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:48:32,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:48:32,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:48:32,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:48:32,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:32" (1/1) ... [2022-10-17 16:48:32,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:32" (1/1) ... [2022-10-17 16:48:32,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:32" (1/1) ... [2022-10-17 16:48:32,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:32" (1/1) ... [2022-10-17 16:48:32,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:32" (1/1) ... [2022-10-17 16:48:32,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:32" (1/1) ... [2022-10-17 16:48:32,726 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:32" (1/1) ... [2022-10-17 16:48:32,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:32" (1/1) ... [2022-10-17 16:48:32,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:48:32,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:48:32,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:48:32,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:48:32,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:48:32" (1/1) ... [2022-10-17 16:48:32,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:48:32,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:48:32,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:48:32,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:48:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:48:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:48:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:48:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 16:48:32,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:48:32,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:48:33,025 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:48:33,027 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:48:33,214 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:48:33,297 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:48:33,297 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:48:33,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:48:33 BoogieIcfgContainer [2022-10-17 16:48:33,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:48:33,301 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:48:33,301 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:48:33,313 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:48:33,313 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:48:33" (1/1) ... [2022-10-17 16:48:33,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:48:33,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:33,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-10-17 16:48:33,428 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-10-17 16:48:33,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 16:48:33,431 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:33,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:48:33,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:33,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2022-10-17 16:48:33,799 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2022-10-17 16:48:33,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:48:33,800 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:33,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:34,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:48:34,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:34,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-10-17 16:48:34,111 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-10-17 16:48:34,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:48:34,112 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:34,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:34,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:48:34,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:34,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-10-17 16:48:34,506 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-10-17 16:48:34,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:48:34,507 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:34,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:34,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:48:35,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:35,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2022-10-17 16:48:35,122 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2022-10-17 16:48:35,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:48:35,123 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:48:35,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:48:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:48:35,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:48:36,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:48:36,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-10-17 16:48:36,410 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2022-10-17 16:48:36,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:48:36,411 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-10-17 16:48:36,421 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-10-17 16:48:36,479 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:48:36,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:48:36 ImpRootNode [2022-10-17 16:48:36,486 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:48:36,487 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:48:36,487 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:48:36,487 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:48:36,488 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:48:33" (3/4) ... [2022-10-17 16:48:36,492 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:48:36,514 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-10-17 16:48:36,515 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-10-17 16:48:36,516 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 16:48:36,579 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:48:36,579 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:48:36,591 INFO L158 Benchmark]: Toolchain (without parser) took 4699.07ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 59.6MB in the beginning and 46.5MB in the end (delta: 13.1MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2022-10-17 16:48:36,591 INFO L158 Benchmark]: CDTParser took 0.70ms. Allocated memory is still 86.0MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:48:36,592 INFO L158 Benchmark]: CACSL2BoogieTranslator took 755.97ms. Allocated memory is still 86.0MB. Free memory was 59.2MB in the beginning and 48.6MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:48:36,592 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.31ms. Allocated memory is still 86.0MB. Free memory was 48.6MB in the beginning and 46.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:48:36,598 INFO L158 Benchmark]: Boogie Preprocessor took 33.15ms. Allocated memory is still 86.0MB. Free memory was 46.4MB in the beginning and 45.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:48:36,599 INFO L158 Benchmark]: RCFGBuilder took 569.27ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 45.1MB in the beginning and 74.0MB in the end (delta: -28.8MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2022-10-17 16:48:36,599 INFO L158 Benchmark]: CodeCheck took 3184.69ms. Allocated memory is still 104.9MB. Free memory was 73.7MB in the beginning and 48.5MB in the end (delta: 25.1MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2022-10-17 16:48:36,600 INFO L158 Benchmark]: Witness Printer took 92.79ms. Allocated memory is still 104.9MB. Free memory was 48.5MB in the beginning and 46.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:48:36,602 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185 IncrementalHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 0 mSDtfsCounter, 185 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1148 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 769]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70ms. Allocated memory is still 86.0MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 755.97ms. Allocated memory is still 86.0MB. Free memory was 59.2MB in the beginning and 48.6MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.31ms. Allocated memory is still 86.0MB. Free memory was 48.6MB in the beginning and 46.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.15ms. Allocated memory is still 86.0MB. Free memory was 46.4MB in the beginning and 45.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 569.27ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 45.1MB in the beginning and 74.0MB in the end (delta: -28.8MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * CodeCheck took 3184.69ms. Allocated memory is still 104.9MB. Free memory was 73.7MB in the beginning and 48.5MB in the end (delta: 25.1MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * Witness Printer took 92.79ms. Allocated memory is still 104.9MB. Free memory was 48.5MB in the beginning and 46.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:48:36,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34b3b8ce-68a6-43b1-b73b-ff0a0726287a/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE