./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcat_unsafe.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --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 --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:57:35,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:57:35,685 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-19 03:57:35,696 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:57:35,697 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:57:35,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:57:35,737 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:57:35,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:57:35,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:57:35,744 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:57:35,744 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:57:35,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:57:35,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:57:35,747 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 03:57:35,748 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 03:57:35,748 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 03:57:35,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:57:35,749 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:57:35,750 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:57:35,750 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:57:35,751 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:57:35,752 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:57:35,752 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:57:35,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:57:35,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:35,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:57:35,755 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:57:35,755 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:57:35,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:57:35,756 INFO L153 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_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f35e4091ba483da9f0b2bb24c6ab92803922823d78b3627798806ae597763363 [2023-11-19 03:57:36,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:57:36,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:57:36,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:57:36,081 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:57:36,082 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:57:36,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/array-memsafety/cstrcat_unsafe.c [2023-11-19 03:57:39,303 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:57:39,547 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:57:39,548 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/sv-benchmarks/c/array-memsafety/cstrcat_unsafe.c [2023-11-19 03:57:39,556 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL/data/0d7440599/c1b81d32cee941a0903c07ef12ddde85/FLAGd1351c01b [2023-11-19 03:57:39,576 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL/data/0d7440599/c1b81d32cee941a0903c07ef12ddde85 [2023-11-19 03:57:39,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:57:39,584 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:57:39,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:39,588 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:57:39,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:57:39,594 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fcc58ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39, skipping insertion in model container [2023-11-19 03:57:39,595 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,618 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:57:39,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:39,833 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:57:39,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:39,863 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:57:39,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39 WrapperNode [2023-11-19 03:57:39,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:39,865 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:39,865 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:57:39,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:57:39,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,881 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,902 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2023-11-19 03:57:39,903 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:39,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:57:39,904 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:57:39,904 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:57:39,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,916 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,916 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,921 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,924 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,927 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:57:39,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:57:39,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:57:39,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:57:39,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:39" (1/1) ... [2023-11-19 03:57:39,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:39,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:57:39,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:57:39,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:57:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:57:40,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:57:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:57:40,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:57:40,083 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:57:40,086 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:57:40,234 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:57:40,256 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:57:40,260 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:57:40,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:40 BoogieIcfgContainer [2023-11-19 03:57:40,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:57:40,268 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:57:40,268 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:57:40,280 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:57:40,280 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:40" (1/1) ... [2023-11-19 03:57:40,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:57:40,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:40,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-19 03:57:40,361 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-19 03:57:40,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-19 03:57:40,365 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:40,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:40,460 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:57:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:40,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:57:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:57:40,523 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:57:40,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:57:40 ImpRootNode [2023-11-19 03:57:40,545 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:57:40,546 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:57:40,546 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:57:40,547 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:57:40,548 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:40" (3/4) ... [2023-11-19 03:57:40,549 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:57:40,595 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:57:40,595 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:57:40,597 INFO L158 Benchmark]: Toolchain (without parser) took 1012.32ms. Allocated memory is still 172.0MB. Free memory was 133.4MB in the beginning and 95.6MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-19 03:57:40,599 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:57:40,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.80ms. Allocated memory is still 172.0MB. Free memory was 132.9MB in the beginning and 122.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:57:40,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.16ms. Allocated memory is still 172.0MB. Free memory was 122.9MB in the beginning and 120.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:40,601 INFO L158 Benchmark]: Boogie Preprocessor took 25.37ms. Allocated memory is still 172.0MB. Free memory was 120.6MB in the beginning and 119.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:40,602 INFO L158 Benchmark]: RCFGBuilder took 336.68ms. Allocated memory is still 172.0MB. Free memory was 119.2MB in the beginning and 108.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:57:40,602 INFO L158 Benchmark]: CodeCheck took 277.84ms. Allocated memory is still 172.0MB. Free memory was 108.2MB in the beginning and 97.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:57:40,603 INFO L158 Benchmark]: Witness Printer took 49.43ms. Allocated memory is still 172.0MB. Free memory was 97.1MB in the beginning and 95.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:40,607 INFO L338 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: 0.2s, 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 [s1={2:5}, s1={2:5}, s2={3:4}, s2={3:4}, s={2:5}] [L5] \read(*s) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.80ms. Allocated memory is still 172.0MB. Free memory was 132.9MB in the beginning and 122.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.16ms. Allocated memory is still 172.0MB. Free memory was 122.9MB in the beginning and 120.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.37ms. Allocated memory is still 172.0MB. Free memory was 120.6MB in the beginning and 119.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 336.68ms. Allocated memory is still 172.0MB. Free memory was 119.2MB in the beginning and 108.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 277.84ms. Allocated memory is still 172.0MB. Free memory was 108.2MB in the beginning and 97.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 49.43ms. Allocated memory is still 172.0MB. Free memory was 97.1MB in the beginning and 95.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 03:57:40,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_873c9266-747b-4b18-bca9-4fdd424a5b2f/bin/ukojak-verify-G8NBE6pJGL/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)