./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-dietlibc/strcat.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-dietlibc/strcat.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4 --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 64bit --witnessprinter.graph.data.programhash 02cb0b7d003c65b862775c945403a999f88317049d254b45ea895999d5c859dc --- 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-2329fc7 [2022-12-15 00:41:22,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 00:41:22,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 00:41:22,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 00:41:22,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 00:41:22,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 00:41:22,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 00:41:22,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 00:41:22,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 00:41:22,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 00:41:22,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 00:41:22,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 00:41:22,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 00:41:22,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 00:41:22,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 00:41:22,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 00:41:22,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 00:41:22,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 00:41:22,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 00:41:22,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 00:41:22,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 00:41:22,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 00:41:22,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 00:41:22,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 00:41:22,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 00:41:22,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 00:41:22,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 00:41:22,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 00:41:22,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 00:41:22,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 00:41:22,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 00:41:22,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 00:41:22,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 00:41:22,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 00:41:22,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 00:41:22,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 00:41:22,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 00:41:22,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 00:41:22,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 00:41:22,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 00:41:22,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 00:41:22,549 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2022-12-15 00:41:22,565 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 00:41:22,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 00:41:22,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 00:41:22,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 00:41:22,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 00:41:22,567 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-15 00:41:22,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 00:41:22,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 00:41:22,567 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-15 00:41:22,567 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-15 00:41:22,568 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-15 00:41:22,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 00:41:22,568 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 00:41:22,568 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 00:41:22,568 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 00:41:22,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 00:41:22,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 00:41:22,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 00:41:22,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 00:41:22,569 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 00:41:22,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 00:41:22,569 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_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02cb0b7d003c65b862775c945403a999f88317049d254b45ea895999d5c859dc [2022-12-15 00:41:22,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 00:41:22,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 00:41:22,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 00:41:22,778 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 00:41:22,778 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 00:41:22,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-dietlibc/strcat.i [2022-12-15 00:41:25,355 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 00:41:25,516 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 00:41:25,516 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/sv-benchmarks/c/termination-dietlibc/strcat.i [2022-12-15 00:41:25,524 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4/data/752cb6362/6b3ac9b0183c46929a1aadffef8a134a/FLAGa16f25e20 [2022-12-15 00:41:25,535 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4/data/752cb6362/6b3ac9b0183c46929a1aadffef8a134a [2022-12-15 00:41:25,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 00:41:25,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 00:41:25,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 00:41:25,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 00:41:25,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 00:41:25,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:41:25" (1/1) ... [2022-12-15 00:41:25,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9d9993f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:41:25, skipping insertion in model container [2022-12-15 00:41:25,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:41:25" (1/1) ... [2022-12-15 00:41:25,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 00:41:25,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 00:41:25,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 00:41:25,752 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 00:41:25,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 00:41:25,793 INFO L208 MainTranslator]: Completed translation [2022-12-15 00:41:25,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:41:25 WrapperNode [2022-12-15 00:41:25,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 00:41:25,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 00:41:25,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 00:41:25,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 00:41:25,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:41:25" (1/1) ... [2022-12-15 00:41:25,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:41:25" (1/1) ... [2022-12-15 00:41:25,825 INFO L138 Inliner]: procedures = 114, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 126 [2022-12-15 00:41:25,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 00:41:25,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 00:41:25,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 00:41:25,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 00:41:25,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:41:25" (1/1) ... [2022-12-15 00:41:25,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:41:25" (1/1) ... [2022-12-15 00:41:25,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:41:25" (1/1) ... [2022-12-15 00:41:25,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:41:25" (1/1) ... [2022-12-15 00:41:25,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:41:25" (1/1) ... [2022-12-15 00:41:25,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:41:25" (1/1) ... [2022-12-15 00:41:25,843 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:41:25" (1/1) ... [2022-12-15 00:41:25,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:41:25" (1/1) ... [2022-12-15 00:41:25,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 00:41:25,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 00:41:25,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 00:41:25,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 00:41:25,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:41:25" (1/1) ... [2022-12-15 00:41:25,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 00:41:25,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 00:41:25,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 00:41:25,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 00:41:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-15 00:41:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-15 00:41:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-15 00:41:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-15 00:41:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 00:41:25,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 00:41:25,982 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 00:41:25,984 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 00:41:26,234 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 00:41:26,253 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 00:41:26,253 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-15 00:41:26,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:41:26 BoogieIcfgContainer [2022-12-15 00:41:26,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 00:41:26,256 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 00:41:26,256 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 00:41:26,264 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 00:41:26,264 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:41:26" (1/1) ... [2022-12-15 00:41:26,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 00:41:26,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:41:26,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 50 states and 60 transitions. [2022-12-15 00:41:26,308 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-12-15 00:41:26,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-15 00:41:26,310 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:41:26,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:41:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:41:26,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:41:26,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:41:26,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 51 states and 63 transitions. [2022-12-15 00:41:26,449 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2022-12-15 00:41:26,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-15 00:41:26,449 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:41:26,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:41:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:41:26,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:41:26,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:41:26,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 50 states and 62 transitions. [2022-12-15 00:41:26,554 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2022-12-15 00:41:26,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-15 00:41:26,554 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:41:26,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:41:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:41:26,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:41:26,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:41:26,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 49 states and 61 transitions. [2022-12-15 00:41:26,877 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2022-12-15 00:41:26,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-15 00:41:26,877 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:41:26,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:41:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:41:26,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:41:27,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:41:27,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 49 states and 60 transitions. [2022-12-15 00:41:27,120 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2022-12-15 00:41:27,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 00:41:27,120 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:41:27,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:41:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:41:27,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:41:27,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:41:27,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 49 states and 59 transitions. [2022-12-15 00:41:27,181 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2022-12-15 00:41:27,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 00:41:27,181 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:41:27,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:41:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 00:41:27,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 00:41:27,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 00:41:27,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 48 states and 58 transitions. [2022-12-15 00:41:27,258 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2022-12-15 00:41:27,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 00:41:27,258 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 00:41:27,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 00:41:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 00:41:27,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-15 00:41:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 00:41:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 00:41:27,305 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-15 00:41:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 00:41:27,320 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2022-12-15 00:41:27,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 12:41:27 ImpRootNode [2022-12-15 00:41:27,336 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 00:41:27,337 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 00:41:27,337 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 00:41:27,337 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 00:41:27,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:41:26" (3/4) ... [2022-12-15 00:41:27,338 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-15 00:41:27,362 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 00:41:27,362 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 00:41:27,363 INFO L158 Benchmark]: Toolchain (without parser) took 1824.91ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 78.1MB in the beginning and 103.3MB in the end (delta: -25.3MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-12-15 00:41:27,363 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 119.5MB. Free memory was 85.5MB in the beginning and 85.4MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 00:41:27,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.68ms. Allocated memory is still 119.5MB. Free memory was 78.1MB in the beginning and 61.8MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-15 00:41:27,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.10ms. Allocated memory is still 119.5MB. Free memory was 61.8MB in the beginning and 59.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 00:41:27,364 INFO L158 Benchmark]: Boogie Preprocessor took 19.33ms. Allocated memory is still 119.5MB. Free memory was 59.6MB in the beginning and 58.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 00:41:27,365 INFO L158 Benchmark]: RCFGBuilder took 409.50ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 58.1MB in the beginning and 121.6MB in the end (delta: -63.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-15 00:41:27,365 INFO L158 Benchmark]: CodeCheck took 1080.18ms. Allocated memory is still 159.4MB. Free memory was 121.6MB in the beginning and 105.3MB in the end (delta: 16.3MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-12-15 00:41:27,366 INFO L158 Benchmark]: Witness Printer took 25.50ms. Allocated memory is still 159.4MB. Free memory was 105.3MB in the beginning and 103.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 00:41:27,368 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, 50 locations, 23 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 184 IncrementalHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 18 mSDtfsCounter, 184 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 203 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 91 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: [L525] int in_len = __VERIFIER_nondet_int(); [L526] COND FALSE !(in_len < 1) [L527] char* in = __builtin_alloca (in_len); VAL [__builtin_alloca (in_len)={2:0}, in={2:0}, in_len=2] [L528] in[in_len-1]=0 [L529] int out_len = __VERIFIER_nondet_int(); [L530] COND FALSE !(out_len < 1) [L531] int out_end = __VERIFIER_nondet_int(); [L532] COND FALSE !(out_len < out_end+in_len) [L533] char* out = __builtin_alloca (out_len); VAL [__builtin_alloca (in_len)={2:0}, __builtin_alloca (out_len)={3:0}, in={2:0}, in_len=2, out={3:0}, out_end=-1, out_len=18524] [L534] out[out_end]=0 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 119.5MB. Free memory was 85.5MB in the beginning and 85.4MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.68ms. Allocated memory is still 119.5MB. Free memory was 78.1MB in the beginning and 61.8MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.10ms. Allocated memory is still 119.5MB. Free memory was 61.8MB in the beginning and 59.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.33ms. Allocated memory is still 119.5MB. Free memory was 59.6MB in the beginning and 58.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 409.50ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 58.1MB in the beginning and 121.6MB in the end (delta: -63.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 1080.18ms. Allocated memory is still 159.4MB. Free memory was 121.6MB in the beginning and 105.3MB in the end (delta: 16.3MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Witness Printer took 25.50ms. Allocated memory is still 159.4MB. Free memory was 105.3MB in the beginning and 103.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-15 00:41:27,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24b7e5f-def7-4316-aac2-875156f0d572/bin/ukojak-rkRKPMF4O4/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)