./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-properties/simple_built_from_end.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_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/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_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/simple_built_from_end.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/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_7e593959-b683-43f5-9760-972c45afcb17/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 0eb3d3e07cae1efa9dc9af5091aea6a309746434756c62bcf3ece83b84aec27a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:08:13,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:08:13,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:08:13,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:08:13,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:08:13,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:08:13,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:08:13,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:08:13,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:08:13,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:08:13,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:08:13,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:08:13,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:08:13,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:08:13,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:08:13,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:08:13,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:08:13,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:08:13,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:08:13,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:08:13,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:08:13,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:08:13,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:08:13,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:08:13,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:08:13,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:08:13,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:08:13,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:08:13,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:08:13,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:08:13,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:08:13,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:08:13,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:08:13,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:08:13,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:08:13,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:08:13,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:08:13,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:08:13,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:08:13,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:08:13,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:08:13,766 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-23 17:08:13,822 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:08:13,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:08:13,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:08:13,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:08:13,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:08:13,824 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:08:13,824 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:08:13,824 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:08:13,825 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:08:13,825 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:08:13,826 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:08:13,826 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:08:13,826 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:08:13,826 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:08:13,827 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:08:13,827 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:08:13,827 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:08:13,827 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:08:13,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 17:08:13,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 17:08:13,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:08:13,829 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:08:13,829 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 17:08:13,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:08:13,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:08:13,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:08:13,831 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 17:08:13,831 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 17:08:13,832 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 17:08:13,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:08:13,832 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:08:13,832 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:08:13,833 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:08:13,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:08:13,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:08:13,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:13,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:08:13,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:08:13,834 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:08:13,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:08:13,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:08:13,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:08:13,835 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_7e593959-b683-43f5-9760-972c45afcb17/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0eb3d3e07cae1efa9dc9af5091aea6a309746434756c62bcf3ece83b84aec27a [2021-11-23 17:08:14,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:08:14,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:08:14,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:08:14,139 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:08:14,140 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:08:14,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-properties/simple_built_from_end.i [2021-11-23 17:08:14,225 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/data/d449cef73/a1f94446617948ca89bacaf96d1f68c6/FLAG87713c809 [2021-11-23 17:08:14,861 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:08:14,861 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/sv-benchmarks/c/list-properties/simple_built_from_end.i [2021-11-23 17:08:14,875 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/data/d449cef73/a1f94446617948ca89bacaf96d1f68c6/FLAG87713c809 [2021-11-23 17:08:15,174 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/data/d449cef73/a1f94446617948ca89bacaf96d1f68c6 [2021-11-23 17:08:15,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:08:15,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:08:15,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:15,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:08:15,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:08:15,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:15" (1/1) ... [2021-11-23 17:08:15,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43fc03f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:15, skipping insertion in model container [2021-11-23 17:08:15,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:15" (1/1) ... [2021-11-23 17:08:15,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:08:15,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:08:15,559 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_7e593959-b683-43f5-9760-972c45afcb17/sv-benchmarks/c/list-properties/simple_built_from_end.i[23125,23138] [2021-11-23 17:08:15,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:15,574 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:08:15,637 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_7e593959-b683-43f5-9760-972c45afcb17/sv-benchmarks/c/list-properties/simple_built_from_end.i[23125,23138] [2021-11-23 17:08:15,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:15,676 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:08:15,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:15 WrapperNode [2021-11-23 17:08:15,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:15,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:15,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:08:15,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:08:15,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:15" (1/1) ... [2021-11-23 17:08:15,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:15" (1/1) ... [2021-11-23 17:08:15,717 INFO L137 Inliner]: procedures = 124, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2021-11-23 17:08:15,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:15,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:08:15,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:08:15,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:08:15,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:15" (1/1) ... [2021-11-23 17:08:15,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:15" (1/1) ... [2021-11-23 17:08:15,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:15" (1/1) ... [2021-11-23 17:08:15,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:15" (1/1) ... [2021-11-23 17:08:15,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:15" (1/1) ... [2021-11-23 17:08:15,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:15" (1/1) ... [2021-11-23 17:08:15,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:15" (1/1) ... [2021-11-23 17:08:15,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:08:15,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:08:15,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:08:15,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:08:15,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:15" (1/1) ... [2021-11-23 17:08:15,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:15,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:08:15,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:08:15,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:08:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:08:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:08:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:08:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:08:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:08:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:08:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:08:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:08:15,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:08:15,920 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:08:15,922 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:08:15,941 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:08:15,948 INFO L158 Benchmark]: Toolchain (without parser) took 769.13ms. Allocated memory is still 96.5MB. Free memory was 60.8MB in the beginning and 53.9MB in the end (delta: 7.0MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2021-11-23 17:08:15,949 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory was 50.8MB in the beginning and 50.7MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:08:15,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.28ms. Allocated memory is still 96.5MB. Free memory was 60.7MB in the beginning and 63.9MB in the end (delta: -3.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:08:15,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.04ms. Allocated memory is still 96.5MB. Free memory was 63.9MB in the beginning and 62.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:08:15,952 INFO L158 Benchmark]: Boogie Preprocessor took 26.02ms. Allocated memory is still 96.5MB. Free memory was 62.2MB in the beginning and 60.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:08:15,953 INFO L158 Benchmark]: RCFGBuilder took 201.45ms. Allocated memory is still 96.5MB. Free memory was 60.8MB in the beginning and 53.9MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:08:15,957 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory was 50.8MB in the beginning and 50.7MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.28ms. Allocated memory is still 96.5MB. Free memory was 60.7MB in the beginning and 63.9MB in the end (delta: -3.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.04ms. Allocated memory is still 96.5MB. Free memory was 63.9MB in the beginning and 62.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.02ms. Allocated memory is still 96.5MB. Free memory was 62.2MB in the beginning and 60.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 201.45ms. Allocated memory is still 96.5MB. Free memory was 60.8MB in the beginning and 53.9MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:08:16,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/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_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/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_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/simple_built_from_end.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/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_7e593959-b683-43f5-9760-972c45afcb17/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 0eb3d3e07cae1efa9dc9af5091aea6a309746434756c62bcf3ece83b84aec27a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:08:18,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:08:18,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:08:18,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:08:18,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:08:18,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:08:18,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:08:18,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:08:18,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:08:18,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:08:18,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:08:18,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:08:18,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:08:18,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:08:18,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:08:18,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:08:18,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:08:18,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:08:18,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:08:18,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:08:18,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:08:18,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:08:18,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:08:18,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:08:18,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:08:18,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:08:18,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:08:18,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:08:18,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:08:18,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:08:18,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:08:18,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:08:18,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:08:18,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:08:18,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:08:18,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:08:18,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:08:18,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:08:18,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:08:18,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:08:18,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:08:18,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-23 17:08:18,699 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:08:18,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:08:18,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:08:18,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:08:18,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:08:18,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:08:18,701 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:08:18,702 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:08:18,702 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:08:18,702 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:08:18,702 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:08:18,702 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:08:18,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 17:08:18,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 17:08:18,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:08:18,704 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:08:18,704 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 17:08:18,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:08:18,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:08:18,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:08:18,704 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 17:08:18,707 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 17:08:18,707 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 17:08:18,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:08:18,708 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:08:18,708 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:08:18,708 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:08:18,708 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:08:18,709 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:08:18,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:08:18,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:08:18,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:08:18,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:18,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:08:18,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:08:18,711 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:08:18,712 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:08:18,712 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:08:18,712 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:08:18,712 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_7e593959-b683-43f5-9760-972c45afcb17/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0eb3d3e07cae1efa9dc9af5091aea6a309746434756c62bcf3ece83b84aec27a [2021-11-23 17:08:19,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:08:19,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:08:19,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:08:19,150 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:08:19,154 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:08:19,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-properties/simple_built_from_end.i [2021-11-23 17:08:19,244 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/data/95063d6c2/0a62ef176ea849ae8d976cef4ee31920/FLAGb415593e3 [2021-11-23 17:08:19,889 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:08:19,894 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/sv-benchmarks/c/list-properties/simple_built_from_end.i [2021-11-23 17:08:19,912 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/data/95063d6c2/0a62ef176ea849ae8d976cef4ee31920/FLAGb415593e3 [2021-11-23 17:08:20,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/data/95063d6c2/0a62ef176ea849ae8d976cef4ee31920 [2021-11-23 17:08:20,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:08:20,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:08:20,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:20,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:08:20,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:08:20,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:20" (1/1) ... [2021-11-23 17:08:20,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4172a1b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:20, skipping insertion in model container [2021-11-23 17:08:20,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:20" (1/1) ... [2021-11-23 17:08:20,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:08:20,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:08:20,583 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_7e593959-b683-43f5-9760-972c45afcb17/sv-benchmarks/c/list-properties/simple_built_from_end.i[23125,23138] [2021-11-23 17:08:20,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:20,600 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:08:20,638 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_7e593959-b683-43f5-9760-972c45afcb17/sv-benchmarks/c/list-properties/simple_built_from_end.i[23125,23138] [2021-11-23 17:08:20,640 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:20,675 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:08:20,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:20 WrapperNode [2021-11-23 17:08:20,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:20,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:20,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:08:20,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:08:20,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:20" (1/1) ... [2021-11-23 17:08:20,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:20" (1/1) ... [2021-11-23 17:08:20,727 INFO L137 Inliner]: procedures = 127, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2021-11-23 17:08:20,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:20,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:08:20,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:08:20,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:08:20,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:20" (1/1) ... [2021-11-23 17:08:20,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:20" (1/1) ... [2021-11-23 17:08:20,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:20" (1/1) ... [2021-11-23 17:08:20,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:20" (1/1) ... [2021-11-23 17:08:20,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:20" (1/1) ... [2021-11-23 17:08:20,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:20" (1/1) ... [2021-11-23 17:08:20,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:20" (1/1) ... [2021-11-23 17:08:20,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:08:20,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:08:20,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:08:20,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:08:20,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:20" (1/1) ... [2021-11-23 17:08:20,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:20,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:08:20,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:08:20,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:08:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:08:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:08:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:08:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:08:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:08:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:08:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:08:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:08:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:08:20,997 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:08:20,999 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:08:21,035 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:08:21,044 INFO L158 Benchmark]: Toolchain (without parser) took 868.17ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.7MB in the beginning and 48.1MB in the end (delta: -16.4MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2021-11-23 17:08:21,045 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 36.0MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:08:21,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.48ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.5MB in the beginning and 43.1MB in the end (delta: -11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:08:21,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.09ms. Allocated memory is still 67.1MB. Free memory was 43.1MB in the beginning and 41.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:08:21,048 INFO L158 Benchmark]: Boogie Preprocessor took 46.68ms. Allocated memory is still 67.1MB. Free memory was 41.2MB in the beginning and 39.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:08:21,048 INFO L158 Benchmark]: RCFGBuilder took 265.94ms. Allocated memory is still 67.1MB. Free memory was 39.8MB in the beginning and 48.1MB in the end (delta: -8.3MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-11-23 17:08:21,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 36.0MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.48ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.5MB in the beginning and 43.1MB in the end (delta: -11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.09ms. Allocated memory is still 67.1MB. Free memory was 43.1MB in the beginning and 41.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.68ms. Allocated memory is still 67.1MB. Free memory was 41.2MB in the beginning and 39.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 265.94ms. Allocated memory is still 67.1MB. Free memory was 39.8MB in the beginning and 48.1MB in the end (delta: -8.3MB). Peak memory consumption was 9.9MB. 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 17:08:21,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e593959-b683-43f5-9760-972c45afcb17/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