./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/sll2c_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_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/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_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/sll2c_append_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/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_23637db0-2019-486f-a1a2-17722134e370/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 b335af75f55d322161e6a270bf4669ab290ae0e9da4bc480724c7d5e3b79fdab --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:11:52,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:11:52,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:11:52,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:11:52,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:11:52,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:11:52,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:11:52,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:11:52,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:11:52,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:11:52,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:11:52,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:11:52,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:11:52,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:11:52,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:11:52,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:11:52,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:11:52,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:11:52,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:11:52,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:11:52,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:11:52,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:11:52,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:11:52,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:11:52,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:11:52,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:11:52,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:11:52,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:11:52,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:11:52,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:11:52,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:11:52,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:11:52,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:11:52,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:11:52,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:11:52,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:11:52,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:11:52,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:11:52,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:11:52,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:11:52,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:11:52,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-23 17:11:52,829 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:11:52,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:11:52,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:11:52,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:11:52,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:11:52,832 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:11:52,833 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:11:52,833 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:11:52,833 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:11:52,833 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:11:52,835 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:11:52,835 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:11:52,835 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:11:52,835 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:11:52,836 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:11:52,836 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:11:52,836 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:11:52,837 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:11:52,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 17:11:52,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 17:11:52,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:11:52,839 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:11:52,839 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 17:11:52,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:11:52,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:11:52,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:11:52,842 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 17:11:52,842 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 17:11:52,843 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 17:11:52,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:11:52,843 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:11:52,844 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:11:52,844 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:11:52,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:11:52,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:11:52,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:11:52,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:11:52,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:11:52,845 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:11:52,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:11:52,846 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:11:52,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:11:52,846 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_23637db0-2019-486f-a1a2-17722134e370/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b335af75f55d322161e6a270bf4669ab290ae0e9da4bc480724c7d5e3b79fdab [2021-11-23 17:11:53,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:11:53,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:11:53,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:11:53,191 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:11:53,192 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:11:53,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-simple/sll2c_append_equal.i [2021-11-23 17:11:53,302 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/data/f7a90204a/c8f1b6b5f0ec477e988d190bc4488ba4/FLAGeb1b55d17 [2021-11-23 17:11:54,094 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:11:54,095 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/sv-benchmarks/c/list-simple/sll2c_append_equal.i [2021-11-23 17:11:54,120 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/data/f7a90204a/c8f1b6b5f0ec477e988d190bc4488ba4/FLAGeb1b55d17 [2021-11-23 17:11:54,320 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/data/f7a90204a/c8f1b6b5f0ec477e988d190bc4488ba4 [2021-11-23 17:11:54,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:11:54,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:11:54,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:11:54,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:11:54,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:11:54,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:11:54" (1/1) ... [2021-11-23 17:11:54,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40211a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:54, skipping insertion in model container [2021-11-23 17:11:54,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:11:54" (1/1) ... [2021-11-23 17:11:54,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:11:54,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:11:54,808 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_23637db0-2019-486f-a1a2-17722134e370/sv-benchmarks/c/list-simple/sll2c_append_equal.i[24433,24446] [2021-11-23 17:11:54,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:11:54,830 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:11:54,921 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_23637db0-2019-486f-a1a2-17722134e370/sv-benchmarks/c/list-simple/sll2c_append_equal.i[24433,24446] [2021-11-23 17:11:54,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:11:54,980 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:11:54,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:54 WrapperNode [2021-11-23 17:11:54,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:11:54,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:11:54,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:11:54,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:11:54,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:54" (1/1) ... [2021-11-23 17:11:55,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:54" (1/1) ... [2021-11-23 17:11:55,077 INFO L137 Inliner]: procedures = 127, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 142 [2021-11-23 17:11:55,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:11:55,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:11:55,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:11:55,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:11:55,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:54" (1/1) ... [2021-11-23 17:11:55,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:54" (1/1) ... [2021-11-23 17:11:55,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:54" (1/1) ... [2021-11-23 17:11:55,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:54" (1/1) ... [2021-11-23 17:11:55,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:54" (1/1) ... [2021-11-23 17:11:55,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:54" (1/1) ... [2021-11-23 17:11:55,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:54" (1/1) ... [2021-11-23 17:11:55,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:11:55,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:11:55,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:11:55,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:11:55,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:54" (1/1) ... [2021-11-23 17:11:55,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:11:55,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:11:55,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:11:55,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:11:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:11:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:11:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-11-23 17:11:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-11-23 17:11:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:11:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:11:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:11:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:11:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:11:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:11:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 17:11:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:11:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:11:55,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:11:55,419 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:11:55,421 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:11:55,979 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:11:55,984 INFO L158 Benchmark]: Toolchain (without parser) took 1657.44ms. Allocated memory is still 115.3MB. Free memory was 80.5MB in the beginning and 61.5MB in the end (delta: 19.0MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2021-11-23 17:11:55,987 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 39.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:11:55,990 INFO L158 Benchmark]: CACSL2BoogieTranslator took 652.99ms. Allocated memory is still 115.3MB. Free memory was 80.3MB in the beginning and 83.3MB in the end (delta: -3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:11:55,991 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.06ms. Allocated memory is still 115.3MB. Free memory was 83.3MB in the beginning and 81.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:11:55,993 INFO L158 Benchmark]: Boogie Preprocessor took 44.05ms. Allocated memory is still 115.3MB. Free memory was 81.3MB in the beginning and 79.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:11:55,994 INFO L158 Benchmark]: RCFGBuilder took 858.33ms. Allocated memory is still 115.3MB. Free memory was 79.2MB in the beginning and 61.5MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 17:11:55,998 INFO L339 ainManager$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 83.9MB. Free memory is still 39.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 652.99ms. Allocated memory is still 115.3MB. Free memory was 80.3MB in the beginning and 83.3MB in the end (delta: -3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.06ms. Allocated memory is still 115.3MB. Free memory was 83.3MB in the beginning and 81.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.05ms. Allocated memory is still 115.3MB. Free memory was 81.3MB in the beginning and 79.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 858.33ms. Allocated memory is still 115.3MB. Free memory was 79.2MB in the beginning and 61.5MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. 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 17:11:56,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/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_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/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_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/sll2c_append_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/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_23637db0-2019-486f-a1a2-17722134e370/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 b335af75f55d322161e6a270bf4669ab290ae0e9da4bc480724c7d5e3b79fdab --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:11:59,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:11:59,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:11:59,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:11:59,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:11:59,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:11:59,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:11:59,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:11:59,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:11:59,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:11:59,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:11:59,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:11:59,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:11:59,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:11:59,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:11:59,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:11:59,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:11:59,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:11:59,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:11:59,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:11:59,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:11:59,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:11:59,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:11:59,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:11:59,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:11:59,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:11:59,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:11:59,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:11:59,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:11:59,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:11:59,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:11:59,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:11:59,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:11:59,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:11:59,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:11:59,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:11:59,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:11:59,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:11:59,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:11:59,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:11:59,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:11:59,219 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-23 17:11:59,282 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:11:59,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:11:59,283 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:11:59,284 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:11:59,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:11:59,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:11:59,285 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:11:59,286 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:11:59,286 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:11:59,286 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:11:59,288 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:11:59,288 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:11:59,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 17:11:59,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 17:11:59,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:11:59,291 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:11:59,292 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 17:11:59,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:11:59,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:11:59,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:11:59,293 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 17:11:59,293 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 17:11:59,293 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 17:11:59,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:11:59,294 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:11:59,294 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:11:59,295 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:11:59,295 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:11:59,295 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:11:59,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:11:59,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:11:59,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:11:59,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:11:59,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:11:59,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:11:59,298 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:11:59,298 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:11:59,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:11:59,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:11:59,299 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_23637db0-2019-486f-a1a2-17722134e370/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b335af75f55d322161e6a270bf4669ab290ae0e9da4bc480724c7d5e3b79fdab [2021-11-23 17:11:59,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:11:59,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:11:59,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:11:59,816 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:11:59,817 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:11:59,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-simple/sll2c_append_equal.i [2021-11-23 17:11:59,914 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/data/b34f51f79/9839aab91c8b4883948c6a41afd6f8b3/FLAG482553307 [2021-11-23 17:12:00,691 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:12:00,692 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/sv-benchmarks/c/list-simple/sll2c_append_equal.i [2021-11-23 17:12:00,711 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/data/b34f51f79/9839aab91c8b4883948c6a41afd6f8b3/FLAG482553307 [2021-11-23 17:12:00,950 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/data/b34f51f79/9839aab91c8b4883948c6a41afd6f8b3 [2021-11-23 17:12:00,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:12:00,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:12:00,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:00,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:12:00,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:12:00,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:00" (1/1) ... [2021-11-23 17:12:00,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cbdf0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:00, skipping insertion in model container [2021-11-23 17:12:00,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:00" (1/1) ... [2021-11-23 17:12:00,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:12:01,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:12:01,533 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_23637db0-2019-486f-a1a2-17722134e370/sv-benchmarks/c/list-simple/sll2c_append_equal.i[24433,24446] [2021-11-23 17:12:01,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:01,555 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:12:01,608 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_23637db0-2019-486f-a1a2-17722134e370/sv-benchmarks/c/list-simple/sll2c_append_equal.i[24433,24446] [2021-11-23 17:12:01,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:01,650 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:12:01,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:01 WrapperNode [2021-11-23 17:12:01,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:01,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:01,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:12:01,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:12:01,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:01" (1/1) ... [2021-11-23 17:12:01,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:01" (1/1) ... [2021-11-23 17:12:01,713 INFO L137 Inliner]: procedures = 130, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 143 [2021-11-23 17:12:01,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:01,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:12:01,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:12:01,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:12:01,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:01" (1/1) ... [2021-11-23 17:12:01,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:01" (1/1) ... [2021-11-23 17:12:01,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:01" (1/1) ... [2021-11-23 17:12:01,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:01" (1/1) ... [2021-11-23 17:12:01,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:01" (1/1) ... [2021-11-23 17:12:01,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:01" (1/1) ... [2021-11-23 17:12:01,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:01" (1/1) ... [2021-11-23 17:12:01,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:12:01,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:12:01,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:12:01,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:12:01,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:01" (1/1) ... [2021-11-23 17:12:01,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:12:01,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:12:01,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:12:01,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:12:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:12:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-11-23 17:12:01,879 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-11-23 17:12:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:12:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:12:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:12:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:12:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:12:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:12:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:12:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 17:12:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:12:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:12:01,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:12:02,128 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:12:02,130 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:12:02,748 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:12:02,753 INFO L158 Benchmark]: Toolchain (without parser) took 1796.22ms. Allocated memory is still 56.6MB. Free memory was 39.0MB in the beginning and 32.5MB in the end (delta: 6.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-11-23 17:12:02,754 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 46.1MB. Free memory was 27.0MB in the beginning and 27.0MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:12:02,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 693.90ms. Allocated memory is still 56.6MB. Free memory was 38.7MB in the beginning and 31.3MB in the end (delta: 7.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:12:02,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.55ms. Allocated memory is still 56.6MB. Free memory was 31.3MB in the beginning and 29.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:12:02,757 INFO L158 Benchmark]: Boogie Preprocessor took 51.15ms. Allocated memory is still 56.6MB. Free memory was 28.9MB in the beginning and 38.9MB in the end (delta: -9.9MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2021-11-23 17:12:02,758 INFO L158 Benchmark]: RCFGBuilder took 984.33ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 32.5MB in the end (delta: 6.4MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2021-11-23 17:12:02,765 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 46.1MB. Free memory was 27.0MB in the beginning and 27.0MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 693.90ms. Allocated memory is still 56.6MB. Free memory was 38.7MB in the beginning and 31.3MB in the end (delta: 7.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.55ms. Allocated memory is still 56.6MB. Free memory was 31.3MB in the beginning and 29.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.15ms. Allocated memory is still 56.6MB. Free memory was 28.9MB in the beginning and 38.9MB in the end (delta: -9.9MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * RCFGBuilder took 984.33ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 32.5MB in the end (delta: 6.4MB). Peak memory consumption was 16.7MB. 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 17:12:02,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23637db0-2019-486f-a1a2-17722134e370/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