./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i --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_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI --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 c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa ......................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:08:49,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:08:49,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:08:50,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:08:50,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:08:50,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:08:50,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:08:50,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:08:50,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:08:50,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:08:50,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:08:50,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:08:50,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:08:50,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:08:50,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:08:50,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:08:50,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:08:50,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:08:50,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:08:50,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:08:50,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:08:50,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:08:50,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:08:50,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:08:50,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:08:50,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:08:50,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:08:50,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:08:50,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:08:50,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:08:50,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:08:50,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:08:50,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:08:50,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:08:50,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:08:50,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:08:50,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:08:50,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:08:50,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:08:50,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:08:50,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:08:50,063 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-10-29 03:08:50,088 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:08:50,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:08:50,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:08:50,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:08:50,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:08:50,091 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:08:50,091 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 03:08:50,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:08:50,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:08:50,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:08:50,092 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 03:08:50,092 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 03:08:50,093 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 03:08:50,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:08:50,093 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:08:50,093 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:08:50,094 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:08:50,094 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:08:50,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:08:50,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:08:50,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:08:50,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:08:50,095 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:08:50,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:08:50,098 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_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa [2021-10-29 03:08:50,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:08:50,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:08:50,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:08:50,399 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:08:50,401 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:08:50,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2021-10-29 03:08:50,495 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/data/1b37911a5/6f66ad593caa4ffba3230f98a3a40fa3/FLAG596d2e944 [2021-10-29 03:08:51,130 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:08:51,131 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2021-10-29 03:08:51,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/data/1b37911a5/6f66ad593caa4ffba3230f98a3a40fa3/FLAG596d2e944 [2021-10-29 03:08:51,392 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/data/1b37911a5/6f66ad593caa4ffba3230f98a3a40fa3 [2021-10-29 03:08:51,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:08:51,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:08:51,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:08:51,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:08:51,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:08:51,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:08:51" (1/1) ... [2021-10-29 03:08:51,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142cd877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:08:51, skipping insertion in model container [2021-10-29 03:08:51,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:08:51" (1/1) ... [2021-10-29 03:08:51,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:08:51,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:08:51,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:08:51,866 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:08:51,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:08:51,984 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:08:51,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:08:51 WrapperNode [2021-10-29 03:08:51,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:08:51,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:08:51,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:08:51,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:08:51,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:08:51" (1/1) ... [2021-10-29 03:08:52,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:08:51" (1/1) ... [2021-10-29 03:08:52,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:08:52,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:08:52,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:08:52,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:08:52,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:08:51" (1/1) ... [2021-10-29 03:08:52,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:08:51" (1/1) ... [2021-10-29 03:08:52,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:08:51" (1/1) ... [2021-10-29 03:08:52,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:08:51" (1/1) ... [2021-10-29 03:08:52,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:08:51" (1/1) ... [2021-10-29 03:08:52,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:08:51" (1/1) ... [2021-10-29 03:08:52,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:08:51" (1/1) ... [2021-10-29 03:08:52,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:08:52,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:08:52,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:08:52,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:08:52,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:08:51" (1/1) ... [2021-10-29 03:08:52,130 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:08:52,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:08:52,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:08:52,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:08:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 03:08:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:08:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 03:08:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-29 03:08:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:08:52,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:08:52,670 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:08:52,670 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-29 03:08:52,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:08:52 BoogieIcfgContainer [2021-10-29 03:08:52,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:08:52,674 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:08:52,674 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:08:52,700 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:08:52,700 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:08:52" (1/1) ... [2021-10-29 03:08:52,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:08:52,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:08:52,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-10-29 03:08:52,763 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-10-29 03:08:52,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 03:08:52,765 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:08:52,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:08:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:08:53,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:08:53,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:08:53,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-29 03:08:53,153 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-29 03:08:53,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:08:53,153 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:08:53,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:08:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:08:53,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:08:53,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:08:53,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-29 03:08:53,577 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-29 03:08:53,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:08:53,578 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:08:53,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:08:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:08:53,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:08:54,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:08:54,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-10-29 03:08:54,007 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-10-29 03:08:54,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:08:54,008 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:08:54,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:08:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:08:54,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:08:54,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:08:54,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-29 03:08:54,976 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-29 03:08:54,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:08:54,976 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:08:54,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:08:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:08:55,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:08:56,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:08:56,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-10-29 03:08:56,112 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-10-29 03:08:56,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 03:08:56,113 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2021-10-29 03:08:56,119 INFO L759 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2021-10-29 03:08:56,172 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 03:08:56,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:08:56 ImpRootNode [2021-10-29 03:08:56,176 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:08:56,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:08:56,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:08:56,178 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:08:56,178 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:08:52" (3/4) ... [2021-10-29 03:08:56,181 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 03:08:56,192 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-29 03:08:56,192 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-29 03:08:56,192 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 03:08:56,238 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:08:56,239 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:08:56,240 INFO L168 Benchmark]: Toolchain (without parser) took 4843.17 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 78.1 MB in the beginning and 99.5 MB in the end (delta: -21.4 MB). Peak memory consumption was 70.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:56,241 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 83.9 MB. Free memory was 60.6 MB in the beginning and 60.5 MB in the end (delta: 35.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:08:56,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 587.55 ms. Allocated memory is still 100.7 MB. Free memory was 77.8 MB in the beginning and 61.4 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:56,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.20 ms. Allocated memory is still 100.7 MB. Free memory was 61.4 MB in the beginning and 59.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:56,243 INFO L168 Benchmark]: Boogie Preprocessor took 43.32 ms. Allocated memory is still 100.7 MB. Free memory was 59.3 MB in the beginning and 57.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:56,243 INFO L168 Benchmark]: RCFGBuilder took 566.60 ms. Allocated memory is still 100.7 MB. Free memory was 57.9 MB in the beginning and 41.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:56,244 INFO L168 Benchmark]: CodeCheck took 3502.46 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 41.8 MB in the beginning and 35.3 MB in the end (delta: 6.5 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:56,245 INFO L168 Benchmark]: Witness Printer took 61.53 ms. Allocated memory is still 125.8 MB. Free memory was 35.3 MB in the beginning and 99.5 MB in the end (delta: -64.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:56,248 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: 3.3s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 80 SDslu, 16 SDs, 0 SdLazy, 516 SolverSat, 268 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1374 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 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: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 789]: 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 0.58 ms. Allocated memory is still 83.9 MB. Free memory was 60.6 MB in the beginning and 60.5 MB in the end (delta: 35.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 587.55 ms. Allocated memory is still 100.7 MB. Free memory was 77.8 MB in the beginning and 61.4 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.20 ms. Allocated memory is still 100.7 MB. Free memory was 61.4 MB in the beginning and 59.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.32 ms. Allocated memory is still 100.7 MB. Free memory was 59.3 MB in the beginning and 57.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 566.60 ms. Allocated memory is still 100.7 MB. Free memory was 57.9 MB in the beginning and 41.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 3502.46 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 41.8 MB in the beginning and 35.3 MB in the end (delta: 6.5 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. * Witness Printer took 61.53 ms. Allocated memory is still 125.8 MB. Free memory was 35.3 MB in the beginning and 99.5 MB in the end (delta: -64.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-29 03:08:56,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43fa9ac6-c6b9-4242-993d-669166b937d1/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...