./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrcat_unsafe.c --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_8efbdc6d-5aca-4dad-aefa-41991784ab8d/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efbdc6d-5aca-4dad-aefa-41991784ab8d/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_8efbdc6d-5aca-4dad-aefa-41991784ab8d/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efbdc6d-5aca-4dad-aefa-41991784ab8d/bin/ukojak-92XMlrwhuB/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcat_unsafe.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efbdc6d-5aca-4dad-aefa-41991784ab8d/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_8efbdc6d-5aca-4dad-aefa-41991784ab8d/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 f35e4091ba483da9f0b2bb24c6ab92803922823d78b3627798806ae597763363 --- 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 16:35:19,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:35:19,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:35:19,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:35:19,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:35:19,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:35:19,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:35:19,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:35:19,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:35:19,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:35:19,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:35:19,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:35:19,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:35:19,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:35:19,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:35:19,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:35:19,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:35:19,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:35:19,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:35:19,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:35:19,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:35:19,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:35:19,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:35:19,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:35:19,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:35:19,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:35:19,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:35:19,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:35:19,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:35:19,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:35:19,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:35:19,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:35:19,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:35:19,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:35:19,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:35:19,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:35:19,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:35:19,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:35:19,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:35:19,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:35:19,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:35:19,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efbdc6d-5aca-4dad-aefa-41991784ab8d/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-10-17 16:35:19,181 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:35:19,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:35:19,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:35:19,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:35:19,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:35:19,184 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:35:19,184 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:35:19,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:35:19,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:35:19,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:35:19,185 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 16:35:19,185 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 16:35:19,186 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 16:35:19,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:35:19,186 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:35:19,186 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:35:19,187 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:35:19,187 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:35:19,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:35:19,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:35:19,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:35:19,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:35:19,189 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:35:19,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:35:19,189 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_8efbdc6d-5aca-4dad-aefa-41991784ab8d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efbdc6d-5aca-4dad-aefa-41991784ab8d/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f35e4091ba483da9f0b2bb24c6ab92803922823d78b3627798806ae597763363 [2022-10-17 16:35:19,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:35:19,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:35:19,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:35:19,508 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:35:19,510 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:35:19,511 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efbdc6d-5aca-4dad-aefa-41991784ab8d/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/array-memsafety/cstrcat_unsafe.c [2022-10-17 16:35:19,601 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efbdc6d-5aca-4dad-aefa-41991784ab8d/bin/ukojak-92XMlrwhuB/data/91ae6981b/034ce29e302f4ead99f8ac0f7bf771fe/FLAGfbbad4de2 [2022-10-17 16:35:20,175 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:35:20,176 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efbdc6d-5aca-4dad-aefa-41991784ab8d/sv-benchmarks/c/array-memsafety/cstrcat_unsafe.c [2022-10-17 16:35:20,187 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efbdc6d-5aca-4dad-aefa-41991784ab8d/bin/ukojak-92XMlrwhuB/data/91ae6981b/034ce29e302f4ead99f8ac0f7bf771fe/FLAGfbbad4de2 [2022-10-17 16:35:20,539 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efbdc6d-5aca-4dad-aefa-41991784ab8d/bin/ukojak-92XMlrwhuB/data/91ae6981b/034ce29e302f4ead99f8ac0f7bf771fe [2022-10-17 16:35:20,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:35:20,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:35:20,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:35:20,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:35:20,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:35:20,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:35:20" (1/1) ... [2022-10-17 16:35:20,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19017512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:20, skipping insertion in model container [2022-10-17 16:35:20,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:35:20" (1/1) ... [2022-10-17 16:35:20,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:35:20,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:35:20,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:35:20,790 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:35:20,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:35:20,820 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:35:20,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:20 WrapperNode [2022-10-17 16:35:20,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:35:20,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:35:20,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:35:20,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:35:20,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:20" (1/1) ... [2022-10-17 16:35:20,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:20" (1/1) ... [2022-10-17 16:35:20,861 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2022-10-17 16:35:20,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:35:20,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:35:20,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:35:20,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:35:20,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:20" (1/1) ... [2022-10-17 16:35:20,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:20" (1/1) ... [2022-10-17 16:35:20,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:20" (1/1) ... [2022-10-17 16:35:20,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:20" (1/1) ... [2022-10-17 16:35:20,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:20" (1/1) ... [2022-10-17 16:35:20,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:20" (1/1) ... [2022-10-17 16:35:20,886 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:20" (1/1) ... [2022-10-17 16:35:20,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:20" (1/1) ... [2022-10-17 16:35:20,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:35:20,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:35:20,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:35:20,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:35:20,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:20" (1/1) ... [2022-10-17 16:35:20,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:35:20,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efbdc6d-5aca-4dad-aefa-41991784ab8d/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:35:20,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efbdc6d-5aca-4dad-aefa-41991784ab8d/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:35:20,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efbdc6d-5aca-4dad-aefa-41991784ab8d/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:35:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:35:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:35:20,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:35:20,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:35:21,062 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:35:21,065 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:35:21,235 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:35:21,277 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:35:21,277 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 16:35:21,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:35:21 BoogieIcfgContainer [2022-10-17 16:35:21,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:35:21,282 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:35:21,282 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:35:21,310 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:35:21,311 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:35:21" (1/1) ... [2022-10-17 16:35:21,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:35:21,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:21,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2022-10-17 16:35:21,434 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-10-17 16:35:21,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-10-17 16:35:21,439 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:21,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:35:21,596 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:35:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:35:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:35:21,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:35:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:35:21,713 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2022-10-17 16:35:21,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:35:21 ImpRootNode [2022-10-17 16:35:21,742 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:35:21,743 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:35:21,743 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:35:21,743 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:35:21,744 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:35:21" (3/4) ... [2022-10-17 16:35:21,746 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:35:21,790 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efbdc6d-5aca-4dad-aefa-41991784ab8d/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:35:21,790 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:35:21,792 INFO L158 Benchmark]: Toolchain (without parser) took 1246.40ms. Allocated memory is still 109.1MB. Free memory was 79.1MB in the beginning and 58.6MB in the end (delta: 20.5MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-10-17 16:35:21,792 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 109.1MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:35:21,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.82ms. Allocated memory is still 109.1MB. Free memory was 78.7MB in the beginning and 85.1MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:35:21,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.43ms. Allocated memory is still 109.1MB. Free memory was 85.1MB in the beginning and 83.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:35:21,795 INFO L158 Benchmark]: Boogie Preprocessor took 26.70ms. Allocated memory is still 109.1MB. Free memory was 83.8MB in the beginning and 82.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:35:21,796 INFO L158 Benchmark]: RCFGBuilder took 390.85ms. Allocated memory is still 109.1MB. Free memory was 82.5MB in the beginning and 71.2MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 16:35:21,797 INFO L158 Benchmark]: CodeCheck took 460.00ms. Allocated memory is still 109.1MB. Free memory was 71.2MB in the beginning and 60.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:35:21,798 INFO L158 Benchmark]: Witness Printer took 47.99ms. Allocated memory is still 109.1MB. Free memory was 60.3MB in the beginning and 58.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:35:21,802 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, 17 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L15] char *s1; [L16] char *s2; [L17] CALL cstrcat(s1, s2) [L3] char *s = s1; VAL [s={2:5}, s1={2:5}, s1={2:5}, s2={4:3}, s2={4:3}] [L5] \read(*s) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 109.1MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.82ms. Allocated memory is still 109.1MB. Free memory was 78.7MB in the beginning and 85.1MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.43ms. Allocated memory is still 109.1MB. Free memory was 85.1MB in the beginning and 83.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.70ms. Allocated memory is still 109.1MB. Free memory was 83.8MB in the beginning and 82.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 390.85ms. Allocated memory is still 109.1MB. Free memory was 82.5MB in the beginning and 71.2MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 460.00ms. Allocated memory is still 109.1MB. Free memory was 71.2MB in the beginning and 60.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 47.99ms. Allocated memory is still 109.1MB. Free memory was 60.3MB in the beginning and 58.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:35:21,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8efbdc6d-5aca-4dad-aefa-41991784ab8d/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)