./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/sll2n_append_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/sll2n_append_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu --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 f218eac2d2b52810cb44bb8b3f3f80463ec7e46c8818b20f079ed947cc8e9fd0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:58:57,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:58:57,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:58:57,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:58:57,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:58:57,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:58:57,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:58:57,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:58:57,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:58:57,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:58:57,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:58:57,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:58:57,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:58:57,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:58:57,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:58:57,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:58:57,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:58:57,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:58:57,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:58:57,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:58:57,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:58:57,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:58:57,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:58:57,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:58:57,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:58:57,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:58:57,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:58:57,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:58:57,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:58:57,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:58:57,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:58:57,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:58:57,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:58:57,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:58:57,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:58:57,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:58:57,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:58:57,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:58:57,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:58:57,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:58:57,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:58:57,509 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:58:57,551 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:58:57,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:58:57,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:58:57,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:58:57,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:58:57,554 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:58:57,554 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:58:57,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:58:57,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:58:57,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:58:57,561 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:58:57,562 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:58:57,562 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:58:57,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:58:57,562 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:58:57,562 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:58:57,563 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:58:57,563 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:58:57,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:58:57,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:58:57,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:58:57,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:58:57,564 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:58:57,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:58:57,564 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_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f218eac2d2b52810cb44bb8b3f3f80463ec7e46c8818b20f079ed947cc8e9fd0 [2021-11-23 15:58:57,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:58:57,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:58:57,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:58:57,867 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:58:57,867 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:58:57,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/sll2n_append_equal.i [2021-11-23 15:58:57,940 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/data/222bfedeb/53bab061424f4a11aa8da96a5c0fa1e3/FLAGc478a458d [2021-11-23 15:58:58,409 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:58:58,410 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/sv-benchmarks/c/list-simple/sll2n_append_equal.i [2021-11-23 15:58:58,423 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/data/222bfedeb/53bab061424f4a11aa8da96a5c0fa1e3/FLAGc478a458d [2021-11-23 15:58:58,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/data/222bfedeb/53bab061424f4a11aa8da96a5c0fa1e3 [2021-11-23 15:58:58,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:58:58,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:58:58,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:58:58,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:58:58,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:58:58,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:58" (1/1) ... [2021-11-23 15:58:58,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc8f0ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:58, skipping insertion in model container [2021-11-23 15:58:58,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:58" (1/1) ... [2021-11-23 15:58:58,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:58:58,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:58:59,149 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/sv-benchmarks/c/list-simple/sll2n_append_equal.i[24197,24210] [2021-11-23 15:58:59,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:58:59,160 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:58:59,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/sv-benchmarks/c/list-simple/sll2n_append_equal.i[24197,24210] [2021-11-23 15:58:59,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:58:59,242 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:58:59,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:59 WrapperNode [2021-11-23 15:58:59,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:58:59,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:58:59,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:58:59,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:58:59,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:59" (1/1) ... [2021-11-23 15:58:59,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:59" (1/1) ... [2021-11-23 15:58:59,322 INFO L137 Inliner]: procedures = 127, calls = 33, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 134 [2021-11-23 15:58:59,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:58:59,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:58:59,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:58:59,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:58:59,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:59" (1/1) ... [2021-11-23 15:58:59,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:59" (1/1) ... [2021-11-23 15:58:59,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:59" (1/1) ... [2021-11-23 15:58:59,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:59" (1/1) ... [2021-11-23 15:58:59,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:59" (1/1) ... [2021-11-23 15:58:59,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:59" (1/1) ... [2021-11-23 15:58:59,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:59" (1/1) ... [2021-11-23 15:58:59,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:58:59,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:58:59,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:58:59,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:58:59,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:59" (1/1) ... [2021-11-23 15:58:59,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:58:59,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:58:59,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:58:59,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:58:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:58:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:58:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:58:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:58:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:58:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:58:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:58:59,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:58:59,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:58:59,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:58:59,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:58:59,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:58:59,584 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:58:59,588 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:58:59,621 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:58:59,625 INFO L158 Benchmark]: Toolchain (without parser) took 867.22ms. Allocated memory is still 102.8MB. Free memory was 60.0MB in the beginning and 58.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:58:59,626 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 102.8MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:58:59,627 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.43ms. Allocated memory is still 102.8MB. Free memory was 59.8MB in the beginning and 70.8MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:58:59,627 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.51ms. Allocated memory is still 102.8MB. Free memory was 70.8MB in the beginning and 68.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:58:59,628 INFO L158 Benchmark]: Boogie Preprocessor took 37.57ms. Allocated memory is still 102.8MB. Free memory was 68.5MB in the beginning and 66.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:58:59,629 INFO L158 Benchmark]: RCFGBuilder took 261.97ms. Allocated memory is still 102.8MB. Free memory was 66.8MB in the beginning and 58.8MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:58:59,633 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 102.8MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.43ms. Allocated memory is still 102.8MB. Free memory was 59.8MB in the beginning and 70.8MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.51ms. Allocated memory is still 102.8MB. Free memory was 70.8MB in the beginning and 68.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.57ms. Allocated memory is still 102.8MB. Free memory was 68.5MB in the beginning and 66.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 261.97ms. Allocated memory is still 102.8MB. Free memory was 66.8MB in the beginning and 58.8MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:58:59,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/sll2n_append_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu --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 f218eac2d2b52810cb44bb8b3f3f80463ec7e46c8818b20f079ed947cc8e9fd0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:59:02,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:59:02,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:59:02,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:59:02,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:59:02,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:59:02,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:59:02,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:59:02,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:59:02,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:59:02,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:59:02,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:59:02,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:59:02,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:59:02,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:59:02,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:59:02,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:59:02,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:59:02,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:59:02,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:59:02,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:59:02,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:59:02,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:59:02,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:59:02,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:59:02,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:59:02,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:59:02,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:59:02,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:59:02,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:59:02,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:59:02,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:59:02,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:59:02,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:59:02,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:59:02,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:59:02,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:59:02,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:59:02,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:59:02,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:59:02,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:59:02,168 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:59:02,214 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:59:02,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:59:02,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:59:02,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:59:02,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:59:02,219 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:59:02,219 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:59:02,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:59:02,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:59:02,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:59:02,221 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:59:02,221 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:59:02,222 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:59:02,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:59:02,222 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:59:02,222 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:59:02,222 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:59:02,223 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:59:02,223 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:59:02,223 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:59:02,223 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:59:02,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:59:02,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:59:02,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:59:02,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:59:02,225 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:59:02,225 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:59:02,225 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:59:02,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:59:02,225 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f218eac2d2b52810cb44bb8b3f3f80463ec7e46c8818b20f079ed947cc8e9fd0 [2021-11-23 15:59:02,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:59:02,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:59:02,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:59:02,633 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:59:02,637 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:59:02,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/sll2n_append_equal.i [2021-11-23 15:59:02,713 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/data/3d5f525e3/72d7fedde70948f9bc393f144a71c90a/FLAG895ba77c4 [2021-11-23 15:59:03,321 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:59:03,321 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/sv-benchmarks/c/list-simple/sll2n_append_equal.i [2021-11-23 15:59:03,341 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/data/3d5f525e3/72d7fedde70948f9bc393f144a71c90a/FLAG895ba77c4 [2021-11-23 15:59:03,593 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/data/3d5f525e3/72d7fedde70948f9bc393f144a71c90a [2021-11-23 15:59:03,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:59:03,599 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:59:03,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:59:03,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:59:03,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:59:03,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:59:03" (1/1) ... [2021-11-23 15:59:03,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5111fcb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:03, skipping insertion in model container [2021-11-23 15:59:03,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:59:03" (1/1) ... [2021-11-23 15:59:03,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:59:03,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:59:04,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/sv-benchmarks/c/list-simple/sll2n_append_equal.i[24197,24210] [2021-11-23 15:59:04,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:59:04,055 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:59:04,107 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/sv-benchmarks/c/list-simple/sll2n_append_equal.i[24197,24210] [2021-11-23 15:59:04,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:59:04,156 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:59:04,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:04 WrapperNode [2021-11-23 15:59:04,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:59:04,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:59:04,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:59:04,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:59:04,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:04" (1/1) ... [2021-11-23 15:59:04,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:04" (1/1) ... [2021-11-23 15:59:04,254 INFO L137 Inliner]: procedures = 130, calls = 33, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 135 [2021-11-23 15:59:04,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:59:04,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:59:04,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:59:04,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:59:04,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:04" (1/1) ... [2021-11-23 15:59:04,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:04" (1/1) ... [2021-11-23 15:59:04,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:04" (1/1) ... [2021-11-23 15:59:04,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:04" (1/1) ... [2021-11-23 15:59:04,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:04" (1/1) ... [2021-11-23 15:59:04,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:04" (1/1) ... [2021-11-23 15:59:04,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:04" (1/1) ... [2021-11-23 15:59:04,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:59:04,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:59:04,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:59:04,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:59:04,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:04" (1/1) ... [2021-11-23 15:59:04,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:59:04,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:59:04,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:59:04,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:59:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:59:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:59:04,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:59:04,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:59:04,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:59:04,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:59:04,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:59:04,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:59:04,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:59:04,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:59:04,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:59:04,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:59:04,583 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:59:04,585 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:59:04,624 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:59:04,628 INFO L158 Benchmark]: Toolchain (without parser) took 1027.87ms. Allocated memory is still 79.7MB. Free memory was 60.8MB in the beginning and 41.4MB in the end (delta: 19.4MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2021-11-23 15:59:04,628 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:59:04,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 556.41ms. Allocated memory is still 79.7MB. Free memory was 60.6MB in the beginning and 53.9MB in the end (delta: 6.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:59:04,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.48ms. Allocated memory is still 79.7MB. Free memory was 53.7MB in the beginning and 51.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:59:04,631 INFO L158 Benchmark]: Boogie Preprocessor took 62.13ms. Allocated memory is still 79.7MB. Free memory was 51.4MB in the beginning and 49.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:59:04,632 INFO L158 Benchmark]: RCFGBuilder took 308.27ms. Allocated memory is still 79.7MB. Free memory was 49.3MB in the beginning and 41.4MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:59:04,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 556.41ms. Allocated memory is still 79.7MB. Free memory was 60.6MB in the beginning and 53.9MB in the end (delta: 6.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.48ms. Allocated memory is still 79.7MB. Free memory was 53.7MB in the beginning and 51.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.13ms. Allocated memory is still 79.7MB. Free memory was 51.4MB in the beginning and 49.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 308.27ms. Allocated memory is still 79.7MB. Free memory was 49.3MB in the beginning and 41.4MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:59:04,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7a2252-e302-44f8-ab35-1d9d2ebe7dec/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable