./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eba94063d18105b44b9503ed48a138d00b9b850cd51aae19571aab60c15e268e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:45:32,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:45:32,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:45:32,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:45:32,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:45:32,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:45:32,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:45:32,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:45:32,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:45:32,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:45:32,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:45:32,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:45:32,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:45:32,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:45:32,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:45:32,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:45:32,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:45:32,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:45:32,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:45:32,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:45:32,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:45:32,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:45:32,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:45:32,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:45:32,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:45:32,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:45:32,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:45:32,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:45:32,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:45:32,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:45:32,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:45:32,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:45:32,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:45:32,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:45:33,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:45:33,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:45:33,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:45:33,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:45:33,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:45:33,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:45:33,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:45:33,006 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 00:45:33,046 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:45:33,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:45:33,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:45:33,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:45:33,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:45:33,052 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:45:33,052 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 00:45:33,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:45:33,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:45:33,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:45:33,055 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 00:45:33,063 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 00:45:33,063 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 00:45:33,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:45:33,064 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:45:33,064 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:45:33,064 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:45:33,065 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:45:33,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:45:33,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:45:33,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:45:33,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:45:33,066 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:45:33,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:45:33,067 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_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eba94063d18105b44b9503ed48a138d00b9b850cd51aae19571aab60c15e268e [2021-11-23 00:45:33,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:45:33,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:45:33,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:45:33,476 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:45:33,477 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:45:33,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2021-11-23 00:45:33,593 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/data/06c7d9ddc/9a19eb358ccb4b60bdd9538a3130500b/FLAG8f2b99def [2021-11-23 00:45:34,424 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:45:34,424 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2021-11-23 00:45:34,458 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/data/06c7d9ddc/9a19eb358ccb4b60bdd9538a3130500b/FLAG8f2b99def [2021-11-23 00:45:34,653 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/data/06c7d9ddc/9a19eb358ccb4b60bdd9538a3130500b [2021-11-23 00:45:34,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:45:34,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:45:34,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:45:34,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:45:34,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:45:34,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:45:34" (1/1) ... [2021-11-23 00:45:34,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207d6807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:45:34, skipping insertion in model container [2021-11-23 00:45:34,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:45:34" (1/1) ... [2021-11-23 00:45:34,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:45:34,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:45:35,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:45:35,135 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:45:35,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:45:35,254 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:45:35,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:45:35 WrapperNode [2021-11-23 00:45:35,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:45:35,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:45:35,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:45:35,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:45:35,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:45:35" (1/1) ... [2021-11-23 00:45:35,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:45:35" (1/1) ... [2021-11-23 00:45:35,307 INFO L137 Inliner]: procedures = 116, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2021-11-23 00:45:35,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:45:35,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:45:35,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:45:35,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:45:35,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:45:35" (1/1) ... [2021-11-23 00:45:35,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:45:35" (1/1) ... [2021-11-23 00:45:35,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:45:35" (1/1) ... [2021-11-23 00:45:35,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:45:35" (1/1) ... [2021-11-23 00:45:35,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:45:35" (1/1) ... [2021-11-23 00:45:35,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:45:35" (1/1) ... [2021-11-23 00:45:35,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:45:35" (1/1) ... [2021-11-23 00:45:35,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:45:35,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:45:35,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:45:35,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:45:35,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:45:35" (1/1) ... [2021-11-23 00:45:35,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:45:35,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:45:35,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:45:35,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:45:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 00:45:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 00:45:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 00:45:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:45:35,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:45:35,551 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:45:35,553 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:45:35,711 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:45:35,823 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:45:35,824 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:45:35,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:45:35 BoogieIcfgContainer [2021-11-23 00:45:35,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:45:35,837 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:45:35,838 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:45:35,848 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:45:35,848 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:45:35" (1/1) ... [2021-11-23 00:45:35,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:45:35,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:45:35,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2021-11-23 00:45:35,923 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-23 00:45:35,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 00:45:35,926 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:45:35,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:45:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:45:36,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:45:36,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:45:36,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2021-11-23 00:45:36,368 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-11-23 00:45:36,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 00:45:36,369 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:45:36,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:45:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:45:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:45:37,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:45:37,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2021-11-23 00:45:37,072 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-11-23 00:45:37,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 00:45:37,074 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:45:37,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:45:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:45:37,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:45:37,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:45:37,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2021-11-23 00:45:37,375 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-23 00:45:37,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:45:37,376 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:45:37,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:45:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:45:37,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:45:38,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:45:38,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2021-11-23 00:45:38,928 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2021-11-23 00:45:38,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:45:38,928 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:45:38,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:45:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:45:39,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:45:39,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:45:39,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2021-11-23 00:45:39,760 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2021-11-23 00:45:39,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:45:39,760 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:45:39,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:45:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:45:40,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:45:41,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:45:41,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 36 transitions. [2021-11-23 00:45:41,766 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 36 transitions. [2021-11-23 00:45:41,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 00:45:41,767 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:45:41,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:45:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:45:42,725 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:45:46,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:45:46,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 27 states and 43 transitions. [2021-11-23 00:45:46,102 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2021-11-23 00:45:46,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:45:46,103 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:45:46,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:45:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:45:46,976 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:45:48,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:45:48,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-11-23 00:45:48,981 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-11-23 00:45:48,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 00:45:48,982 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2021-11-23 00:45:48,996 INFO L754 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2021-11-23 00:45:49,132 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2021-11-23 00:45:49,142 INFO L560 CodeCheckObserver]: Invariant with dag size 9 [2021-11-23 00:45:49,145 INFO L560 CodeCheckObserver]: Invariant with dag size 26 [2021-11-23 00:45:49,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:45:49 ImpRootNode [2021-11-23 00:45:49,153 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:45:49,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:45:49,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:45:49,155 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:45:49,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:45:35" (3/4) ... [2021-11-23 00:45:49,170 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 00:45:49,186 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-23 00:45:49,186 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-23 00:45:49,187 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 00:45:49,187 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 00:45:49,227 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \valid[__builtin_alloca (n * sizeof(char)) := \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca (n * sizeof(char))]] == \old(unknown-main_\old_#valid#1-unknown) && \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca (n * sizeof(char))] == 0 [2021-11-23 00:45:49,227 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((n + d <= unknown-#length-unknown[d] && \valid[__builtin_alloca (n * sizeof(char)) := \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca (n * sizeof(char))]] == \old(unknown-main_\old_#valid#1-unknown)) && \valid[d] == 1) && unknown-#length-unknown[d] <= n) && 1 <= n) && \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca (n * sizeof(char))] == 0) && 0 <= d) || ((((((n + d <= unknown-#length-unknown[d] && \valid[__builtin_alloca (n * sizeof(char)) := \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca (n * sizeof(char))]] == \old(unknown-main_\old_#valid#1-unknown)) && \valid[d] == 1) && 1 <= n) && unknown-#length-unknown[d] <= n + d) && \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca (n * sizeof(char))] == 0) && n < unknown-#length-unknown[d]) [2021-11-23 00:45:49,229 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid#1-unknown) == \valid [2021-11-23 00:45:49,269 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:45:49,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:45:49,271 INFO L158 Benchmark]: Toolchain (without parser) took 14611.51ms. Allocated memory was 98.6MB in the beginning and 197.1MB in the end (delta: 98.6MB). Free memory was 64.1MB in the beginning and 108.0MB in the end (delta: -43.9MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. [2021-11-23 00:45:49,271 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 98.6MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:45:49,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 593.94ms. Allocated memory was 98.6MB in the beginning and 136.3MB in the end (delta: 37.7MB). Free memory was 63.7MB in the beginning and 106.2MB in the end (delta: -42.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:45:49,273 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.05ms. Allocated memory is still 136.3MB. Free memory was 106.2MB in the beginning and 104.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:45:49,273 INFO L158 Benchmark]: Boogie Preprocessor took 38.68ms. Allocated memory is still 136.3MB. Free memory was 104.5MB in the beginning and 103.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:45:49,274 INFO L158 Benchmark]: RCFGBuilder took 487.80ms. Allocated memory is still 136.3MB. Free memory was 103.2MB in the beginning and 91.5MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 00:45:49,275 INFO L158 Benchmark]: CodeCheck took 13316.28ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 91.5MB in the beginning and 111.1MB in the end (delta: -19.6MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2021-11-23 00:45:49,276 INFO L158 Benchmark]: Witness Printer took 115.56ms. Allocated memory is still 197.1MB. Free memory was 111.1MB in the beginning and 108.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 00:45:49,279 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, 11 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 13.1s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 238 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 612 IncrementalHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 238 mSolverCounterUnsat, 42 mSDtfsCounter, 612 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 570 GetRequests, 414 SyntacticMatches, 16 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5804 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 3/26 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: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: \old(unknown-main_\old_#valid#1-unknown) == \valid - InvariantResult [Line: 515]: Loop Invariant Derived loop invariant: \valid[__builtin_alloca (n * sizeof(char)) := \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca (n * sizeof(char))]] == \old(unknown-main_\old_#valid#1-unknown) && \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca (n * sizeof(char))] == 0 - InvariantResult [Line: 517]: Loop Invariant Derived loop invariant: ((((((n + d <= unknown-#length-unknown[d] && \valid[__builtin_alloca (n * sizeof(char)) := \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca (n * sizeof(char))]] == \old(unknown-main_\old_#valid#1-unknown)) && \valid[d] == 1) && unknown-#length-unknown[d] <= n) && 1 <= n) && \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca (n * sizeof(char))] == 0) && 0 <= d) || ((((((n + d <= unknown-#length-unknown[d] && \valid[__builtin_alloca (n * sizeof(char)) := \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca (n * sizeof(char))]] == \old(unknown-main_\old_#valid#1-unknown)) && \valid[d] == 1) && 1 <= n) && unknown-#length-unknown[d] <= n + d) && \old(unknown-main_\old_#valid#1-unknown)[__builtin_alloca (n * sizeof(char))] == 0) && n < unknown-#length-unknown[d]) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 98.6MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 593.94ms. Allocated memory was 98.6MB in the beginning and 136.3MB in the end (delta: 37.7MB). Free memory was 63.7MB in the beginning and 106.2MB in the end (delta: -42.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.05ms. Allocated memory is still 136.3MB. Free memory was 106.2MB in the beginning and 104.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.68ms. Allocated memory is still 136.3MB. Free memory was 104.5MB in the beginning and 103.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 487.80ms. Allocated memory is still 136.3MB. Free memory was 103.2MB in the beginning and 91.5MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 13316.28ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 91.5MB in the beginning and 111.1MB in the end (delta: -19.6MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. * Witness Printer took 115.56ms. Allocated memory is still 197.1MB. Free memory was 111.1MB in the beginning and 108.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 00:45:49,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da12a6a-a0a3-4aa8-96e8-00b008b0c799/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE