./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-write.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-write.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db4b4fb03b1dcc2b831885b6cb4b7f01d511832c58de7e20715e49b64db06c6b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:57:53,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:57:53,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:57:53,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:57:53,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:57:53,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:57:53,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:57:53,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:57:53,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:57:53,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:57:53,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:57:53,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:57:53,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:57:53,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:57:53,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:57:53,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:57:53,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:57:53,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:57:53,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:57:53,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:57:53,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:57:53,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:57:53,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:57:53,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:57:53,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:57:53,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:57:53,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:57:53,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:57:53,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:57:53,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:57:53,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:57:53,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:57:53,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:57:53,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:57:53,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:57:53,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:57:53,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:57:53,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:57:53,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:57:53,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:57:53,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:57:53,248 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 00:57:53,311 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:57:53,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:57:53,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:57:53,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:57:53,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:57:53,315 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:57:53,315 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 00:57:53,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:57:53,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:57:53,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:57:53,326 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 00:57:53,326 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 00:57:53,326 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 00:57:53,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:57:53,327 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:57:53,327 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:57:53,327 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:57:53,328 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:57:53,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:57:53,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:57:53,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:57:53,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:57:53,329 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:57:53,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:57:53,330 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_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db4b4fb03b1dcc2b831885b6cb4b7f01d511832c58de7e20715e49b64db06c6b [2021-11-23 00:57:53,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:57:53,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:57:53,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:57:53,755 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:57:53,756 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:57:53,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-write.c [2021-11-23 00:57:53,842 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/data/2331f8d9e/70d1ca6ddc20428c9541c5ad4e47f68d/FLAG2a9331b67 [2021-11-23 00:57:54,507 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:57:54,508 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-write.c [2021-11-23 00:57:54,516 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/data/2331f8d9e/70d1ca6ddc20428c9541c5ad4e47f68d/FLAG2a9331b67 [2021-11-23 00:57:54,843 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/data/2331f8d9e/70d1ca6ddc20428c9541c5ad4e47f68d [2021-11-23 00:57:54,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:57:54,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:57:54,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:57:54,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:57:54,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:57:54,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:57:54" (1/1) ... [2021-11-23 00:57:54,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eca995a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:54, skipping insertion in model container [2021-11-23 00:57:54,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:57:54" (1/1) ... [2021-11-23 00:57:54,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:57:54,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:57:55,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:57:55,088 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:57:55,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:57:55,137 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:57:55,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:55 WrapperNode [2021-11-23 00:57:55,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:57:55,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:57:55,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:57:55,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:57:55,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:55" (1/1) ... [2021-11-23 00:57:55,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:55" (1/1) ... [2021-11-23 00:57:55,189 INFO L137 Inliner]: procedures = 9, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2021-11-23 00:57:55,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:57:55,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:57:55,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:57:55,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:57:55,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:55" (1/1) ... [2021-11-23 00:57:55,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:55" (1/1) ... [2021-11-23 00:57:55,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:55" (1/1) ... [2021-11-23 00:57:55,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:55" (1/1) ... [2021-11-23 00:57:55,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:55" (1/1) ... [2021-11-23 00:57:55,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:55" (1/1) ... [2021-11-23 00:57:55,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:55" (1/1) ... [2021-11-23 00:57:55,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:57:55,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:57:55,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:57:55,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:57:55,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:55" (1/1) ... [2021-11-23 00:57:55,253 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:57:55,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:57:55,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:57:55,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:57:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 00:57:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:57:55,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:57:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 00:57:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 00:57:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 00:57:55,474 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:57:55,476 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:57:55,757 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:57:55,866 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:57:55,868 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 00:57:55,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:57:55 BoogieIcfgContainer [2021-11-23 00:57:55,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:57:55,874 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:57:55,875 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:57:55,888 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:57:55,889 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:57:55" (1/1) ... [2021-11-23 00:57:55,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:57:55,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:56,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2021-11-23 00:57:56,006 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-11-23 00:57:56,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 00:57:56,010 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:56,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:56,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:57:56,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2021-11-23 00:57:56,268 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2021-11-23 00:57:56,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 00:57:56,271 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:56,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:56,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:57:56,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:56,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2021-11-23 00:57:56,537 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2021-11-23 00:57:56,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 00:57:56,537 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:56,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:56,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:57:57,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:57,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2021-11-23 00:57:57,117 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2021-11-23 00:57:57,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:57:57,118 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:57,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:57,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:57:57,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:57,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 32 states and 46 transitions. [2021-11-23 00:57:57,572 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2021-11-23 00:57:57,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:57:57,573 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:57,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:57,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:57:58,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:58,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 33 states and 47 transitions. [2021-11-23 00:57:58,214 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 47 transitions. [2021-11-23 00:57:58,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:57:58,214 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:58,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:58,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:57:58,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:58,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 34 states and 49 transitions. [2021-11-23 00:57:58,291 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2021-11-23 00:57:58,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:57:58,291 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:58,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:57:58,311 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:57:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:57:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:57:58,383 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:57:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:57:58,410 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2021-11-23 00:57:58,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:57:58 ImpRootNode [2021-11-23 00:57:58,450 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:57:58,451 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:57:58,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:57:58,451 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:57:58,452 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:57:55" (3/4) ... [2021-11-23 00:57:58,454 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:57:58,490 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:57:58,491 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:57:58,492 INFO L158 Benchmark]: Toolchain (without parser) took 3643.55ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 69.4MB in the beginning and 108.6MB in the end (delta: -39.2MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2021-11-23 00:57:58,492 INFO L158 Benchmark]: CDTParser took 0.70ms. Allocated memory is still 94.4MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:57:58,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.23ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 69.2MB in the beginning and 113.6MB in the end (delta: -44.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:57:58,494 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.11ms. Allocated memory is still 136.3MB. Free memory was 113.6MB in the beginning and 111.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:57:58,494 INFO L158 Benchmark]: Boogie Preprocessor took 52.50ms. Allocated memory is still 136.3MB. Free memory was 111.8MB in the beginning and 110.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:57:58,495 INFO L158 Benchmark]: RCFGBuilder took 629.18ms. Allocated memory is still 136.3MB. Free memory was 110.5MB in the beginning and 96.2MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 00:57:58,496 INFO L158 Benchmark]: CodeCheck took 2576.13ms. Allocated memory is still 136.3MB. Free memory was 96.2MB in the beginning and 109.8MB in the end (delta: -13.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:57:58,496 INFO L158 Benchmark]: Witness Printer took 39.79ms. Allocated memory is still 136.3MB. Free memory was 109.8MB in the beginning and 108.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:57:58,499 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, 24 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 97 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 314 IncrementalHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 97 mSolverCounterUnsat, 34 mSDtfsCounter, 314 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 240 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 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: 23]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L32] int i, b[100]; [L33] i = 0 VAL [b={2:0}, i=0] [L33] COND TRUE i < 100 [L34] CALL foo(i, b, i + 1) [L21] int a[n], i; [L22] i = 0 VAL [\old(n)=0, \old(size)=1, a={3:0}, b={2:0}, b={2:0}, i=0, n=0, size=1] [L22] COND TRUE i < size VAL [\old(n)=0, \old(size)=1, a={3:0}, b={2:0}, b={2:0}, i=0, n=0, size=1] [L23] EXPR b[i] VAL [\old(n)=0, \old(size)=1, a={3:0}, b={2:0}, b={2:0}, b[i]=11, i=0, n=0, size=1] [L23] a[i] = b[i] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70ms. Allocated memory is still 94.4MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.23ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 69.2MB in the beginning and 113.6MB in the end (delta: -44.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.11ms. Allocated memory is still 136.3MB. Free memory was 113.6MB in the beginning and 111.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.50ms. Allocated memory is still 136.3MB. Free memory was 111.8MB in the beginning and 110.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 629.18ms. Allocated memory is still 136.3MB. Free memory was 110.5MB in the beginning and 96.2MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 2576.13ms. Allocated memory is still 136.3MB. Free memory was 96.2MB in the beginning and 109.8MB in the end (delta: -13.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 39.79ms. Allocated memory is still 136.3MB. Free memory was 109.8MB in the beginning and 108.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 00:57:58,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af4d40c-f5bc-4ed0-8053-01201f31c89b/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)