./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/sll2n_remove_all.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_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/sll2n_remove_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bae9bfc842bb010963d083e19e9498cfd3af182f91f0b8fa56907786a4d462dd --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:05:46,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:05:46,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:05:46,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:05:46,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:05:46,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:05:46,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:05:46,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:05:46,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:05:46,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:05:46,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:05:46,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:05:46,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:05:46,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:05:46,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:05:46,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:05:46,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:05:46,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:05:46,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:05:46,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:05:46,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:05:46,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:05:46,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:05:46,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:05:46,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:05:46,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:05:46,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:05:46,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:05:46,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:05:46,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:05:46,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:05:46,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:05:46,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:05:46,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:05:46,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:05:46,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:05:46,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:05:46,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:05:46,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:05:46,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:05:46,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:05:46,989 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-23 17:05:47,015 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:05:47,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:05:47,016 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:05:47,016 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:05:47,017 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:05:47,017 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:05:47,017 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:05:47,018 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:05:47,018 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:05:47,018 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:05:47,018 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:05:47,019 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:05:47,019 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:05:47,019 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:05:47,019 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:05:47,020 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:05:47,020 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:05:47,020 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:05:47,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 17:05:47,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 17:05:47,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:05:47,022 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:05:47,022 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 17:05:47,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:05:47,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:05:47,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:05:47,023 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 17:05:47,023 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 17:05:47,023 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 17:05:47,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:05:47,024 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:05:47,024 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:05:47,024 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:05:47,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:05:47,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:05:47,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:05:47,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:05:47,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:05:47,026 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:05:47,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:05:47,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:05:47,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:05:47,027 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bae9bfc842bb010963d083e19e9498cfd3af182f91f0b8fa56907786a4d462dd [2021-11-23 17:05:47,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:05:47,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:05:47,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:05:47,342 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:05:47,343 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:05:47,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-simple/sll2n_remove_all.i [2021-11-23 17:05:47,443 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/data/85d92ec63/516e6bc58ad44fd2ba8c669210cf1554/FLAG95b66246a [2021-11-23 17:05:47,919 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:05:47,919 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/sv-benchmarks/c/list-simple/sll2n_remove_all.i [2021-11-23 17:05:47,941 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/data/85d92ec63/516e6bc58ad44fd2ba8c669210cf1554/FLAG95b66246a [2021-11-23 17:05:48,261 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/data/85d92ec63/516e6bc58ad44fd2ba8c669210cf1554 [2021-11-23 17:05:48,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:05:48,265 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:05:48,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:05:48,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:05:48,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:05:48,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:05:48" (1/1) ... [2021-11-23 17:05:48,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fde11a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:48, skipping insertion in model container [2021-11-23 17:05:48,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:05:48" (1/1) ... [2021-11-23 17:05:48,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:05:48,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:05:48,740 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_b70c44aa-6e95-4666-af69-ef8aeb42c787/sv-benchmarks/c/list-simple/sll2n_remove_all.i[23806,23819] [2021-11-23 17:05:48,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:05:48,760 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:05:48,809 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_b70c44aa-6e95-4666-af69-ef8aeb42c787/sv-benchmarks/c/list-simple/sll2n_remove_all.i[23806,23819] [2021-11-23 17:05:48,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:05:48,839 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:05:48,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:48 WrapperNode [2021-11-23 17:05:48,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:05:48,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:05:48,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:05:48,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:05:48,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:48" (1/1) ... [2021-11-23 17:05:48,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:48" (1/1) ... [2021-11-23 17:05:48,884 INFO L137 Inliner]: procedures = 126, calls = 25, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 86 [2021-11-23 17:05:48,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:05:48,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:05:48,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:05:48,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:05:48,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:48" (1/1) ... [2021-11-23 17:05:48,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:48" (1/1) ... [2021-11-23 17:05:48,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:48" (1/1) ... [2021-11-23 17:05:48,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:48" (1/1) ... [2021-11-23 17:05:48,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:48" (1/1) ... [2021-11-23 17:05:48,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:48" (1/1) ... [2021-11-23 17:05:48,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:48" (1/1) ... [2021-11-23 17:05:48,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:05:48,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:05:48,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:05:48,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:05:48,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:48" (1/1) ... [2021-11-23 17:05:48,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:05:48,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:05:48,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:05:48,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:05:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:05:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:05:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:05:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:05:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:05:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:05:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:05:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 17:05:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:05:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:05:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:05:49,118 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:05:49,119 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:05:49,137 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:05:49,141 INFO L158 Benchmark]: Toolchain (without parser) took 875.07ms. Allocated memory is still 107.0MB. Free memory was 71.2MB in the beginning and 64.5MB in the end (delta: 6.7MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2021-11-23 17:05:49,141 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 59.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:05:49,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 564.75ms. Allocated memory is still 107.0MB. Free memory was 71.0MB in the beginning and 75.4MB in the end (delta: -4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:05:49,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.90ms. Allocated memory is still 107.0MB. Free memory was 75.4MB in the beginning and 73.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:05:49,144 INFO L158 Benchmark]: Boogie Preprocessor took 27.87ms. Allocated memory is still 107.0MB. Free memory was 73.3MB in the beginning and 71.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:05:49,145 INFO L158 Benchmark]: RCFGBuilder took 224.93ms. Allocated memory is still 107.0MB. Free memory was 71.8MB in the beginning and 64.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:05:49,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 59.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 564.75ms. Allocated memory is still 107.0MB. Free memory was 71.0MB in the beginning and 75.4MB in the end (delta: -4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.90ms. Allocated memory is still 107.0MB. Free memory was 75.4MB in the beginning and 73.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.87ms. Allocated memory is still 107.0MB. Free memory was 73.3MB in the beginning and 71.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 224.93ms. Allocated memory is still 107.0MB. Free memory was 71.8MB in the beginning and 64.5MB in the end (delta: 7.3MB). 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 17:05:49,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/sll2n_remove_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bae9bfc842bb010963d083e19e9498cfd3af182f91f0b8fa56907786a4d462dd --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:05:51,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:05:51,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:05:51,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:05:51,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:05:51,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:05:51,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:05:51,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:05:51,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:05:51,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:05:51,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:05:51,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:05:51,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:05:51,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:05:51,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:05:51,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:05:51,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:05:51,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:05:51,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:05:51,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:05:51,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:05:51,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:05:51,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:05:51,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:05:51,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:05:51,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:05:51,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:05:51,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:05:51,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:05:51,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:05:51,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:05:51,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:05:51,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:05:51,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:05:51,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:05:51,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:05:51,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:05:51,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:05:51,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:05:51,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:05:51,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:05:51,816 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-23 17:05:51,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:05:51,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:05:51,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:05:51,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:05:51,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:05:51,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:05:51,871 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:05:51,872 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:05:51,872 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:05:51,872 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:05:51,873 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:05:51,873 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:05:51,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 17:05:51,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 17:05:51,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:05:51,876 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:05:51,876 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 17:05:51,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:05:51,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:05:51,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:05:51,877 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 17:05:51,877 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 17:05:51,877 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 17:05:51,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:05:51,878 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:05:51,878 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:05:51,878 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:05:51,878 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:05:51,878 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:05:51,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:05:51,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:05:51,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:05:51,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:05:51,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:05:51,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:05:51,881 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:05:51,881 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:05:51,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:05:51,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:05:51,882 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_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bae9bfc842bb010963d083e19e9498cfd3af182f91f0b8fa56907786a4d462dd [2021-11-23 17:05:52,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:05:52,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:05:52,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:05:52,289 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:05:52,290 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:05:52,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-simple/sll2n_remove_all.i [2021-11-23 17:05:52,375 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/data/399d5bb68/eaf9cdaa36b14da09d79276ef243b9d7/FLAG621c05928 [2021-11-23 17:05:52,954 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:05:52,955 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/sv-benchmarks/c/list-simple/sll2n_remove_all.i [2021-11-23 17:05:52,970 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/data/399d5bb68/eaf9cdaa36b14da09d79276ef243b9d7/FLAG621c05928 [2021-11-23 17:05:53,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/data/399d5bb68/eaf9cdaa36b14da09d79276ef243b9d7 [2021-11-23 17:05:53,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:05:53,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:05:53,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:05:53,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:05:53,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:05:53,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:05:53" (1/1) ... [2021-11-23 17:05:53,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e87bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:53, skipping insertion in model container [2021-11-23 17:05:53,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:05:53" (1/1) ... [2021-11-23 17:05:53,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:05:53,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:05:53,729 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_b70c44aa-6e95-4666-af69-ef8aeb42c787/sv-benchmarks/c/list-simple/sll2n_remove_all.i[23806,23819] [2021-11-23 17:05:53,731 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:05:53,743 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:05:53,785 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_b70c44aa-6e95-4666-af69-ef8aeb42c787/sv-benchmarks/c/list-simple/sll2n_remove_all.i[23806,23819] [2021-11-23 17:05:53,786 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:05:53,832 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:05:53,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:53 WrapperNode [2021-11-23 17:05:53,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:05:53,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:05:53,834 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:05:53,834 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:05:53,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:53" (1/1) ... [2021-11-23 17:05:53,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:53" (1/1) ... [2021-11-23 17:05:53,904 INFO L137 Inliner]: procedures = 129, calls = 25, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 87 [2021-11-23 17:05:53,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:05:53,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:05:53,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:05:53,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:05:53,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:53" (1/1) ... [2021-11-23 17:05:53,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:53" (1/1) ... [2021-11-23 17:05:53,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:53" (1/1) ... [2021-11-23 17:05:53,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:53" (1/1) ... [2021-11-23 17:05:53,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:53" (1/1) ... [2021-11-23 17:05:53,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:53" (1/1) ... [2021-11-23 17:05:53,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:53" (1/1) ... [2021-11-23 17:05:53,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:05:53,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:05:53,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:05:53,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:05:53,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:53" (1/1) ... [2021-11-23 17:05:53,975 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:05:53,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:05:54,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:05:54,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:05:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:05:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:05:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:05:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:05:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:05:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:05:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:05:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 17:05:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:05:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:05:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:05:54,183 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:05:54,185 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:05:54,204 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:05:54,209 INFO L158 Benchmark]: Toolchain (without parser) took 939.62ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.4MB in the beginning and 44.1MB in the end (delta: -12.8MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2021-11-23 17:05:54,210 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 54.5MB. Free memory is still 35.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:05:54,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.46ms. Allocated memory is still 54.5MB. Free memory was 31.2MB in the beginning and 29.0MB in the end (delta: 2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:05:54,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.13ms. Allocated memory is still 54.5MB. Free memory was 29.0MB in the beginning and 26.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:05:54,212 INFO L158 Benchmark]: Boogie Preprocessor took 60.57ms. Allocated memory is still 54.5MB. Free memory was 26.9MB in the beginning and 25.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:05:54,214 INFO L158 Benchmark]: RCFGBuilder took 240.79ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 25.3MB in the beginning and 44.1MB in the end (delta: -18.9MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2021-11-23 17:05:54,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 54.5MB. Free memory is still 35.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 561.46ms. Allocated memory is still 54.5MB. Free memory was 31.2MB in the beginning and 29.0MB in the end (delta: 2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.13ms. Allocated memory is still 54.5MB. Free memory was 29.0MB in the beginning and 26.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.57ms. Allocated memory is still 54.5MB. Free memory was 26.9MB in the beginning and 25.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 240.79ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 25.3MB in the beginning and 44.1MB in the end (delta: -18.9MB). Peak memory consumption was 3.2MB. 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 17:05:54,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70c44aa-6e95-4666-af69-ef8aeb42c787/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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