./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/sll2c_update_all.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/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_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/sll2c_update_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e86102617f1813255879beda7bab492587801800e6506c4c5cd56fb9179f8713 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:10:02,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:10:02,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:10:02,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:10:02,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:10:02,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:10:02,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:10:02,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:10:02,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:10:02,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:10:02,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:10:02,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:10:02,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:10:02,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:10:02,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:10:02,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:10:02,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:10:02,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:10:02,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:10:02,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:10:02,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:10:02,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:10:02,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:10:02,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:10:02,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:10:02,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:10:02,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:10:02,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:10:02,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:10:02,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:10:02,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:10:02,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:10:02,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:10:02,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:10:02,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:10:02,344 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:10:02,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:10:02,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:10:02,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:10:02,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:10:02,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:10:02,348 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:10:02,397 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:10:02,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:10:02,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:10:02,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:10:02,406 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:10:02,407 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:10:02,407 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:10:02,407 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:10:02,408 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:10:02,408 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:10:02,409 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:10:02,410 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:10:02,410 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:10:02,410 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:10:02,410 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:10:02,411 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:10:02,411 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:10:02,411 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:10:02,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:10:02,412 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:10:02,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:10:02,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:10:02,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:10:02,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:10:02,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:10:02,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:10:02,416 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:10:02,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:10:02,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:10:02,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:10:02,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:10:02,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:10:02,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:10:02,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:10:02,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:10:02,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:10:02,419 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:10:02,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:10:02,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:10:02,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:10:02,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:10:02,420 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_2c2687f1-428d-42ce-b8c3-5e706f019de8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e86102617f1813255879beda7bab492587801800e6506c4c5cd56fb9179f8713 [2021-11-23 17:10:02,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:10:02,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:10:02,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:10:02,811 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:10:02,812 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:10:02,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-simple/sll2c_update_all.i [2021-11-23 17:10:02,897 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/data/90cc86293/9d765f7e642f47dabff3c347a4fd901a/FLAG833c4f2dd [2021-11-23 17:10:03,540 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:10:03,542 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/sv-benchmarks/c/list-simple/sll2c_update_all.i [2021-11-23 17:10:03,570 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/data/90cc86293/9d765f7e642f47dabff3c347a4fd901a/FLAG833c4f2dd [2021-11-23 17:10:03,778 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/data/90cc86293/9d765f7e642f47dabff3c347a4fd901a [2021-11-23 17:10:03,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:10:03,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:10:03,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:10:03,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:10:03,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:10:03,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:10:03" (1/1) ... [2021-11-23 17:10:03,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f54fc36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:03, skipping insertion in model container [2021-11-23 17:10:03,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:10:03" (1/1) ... [2021-11-23 17:10:03,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:10:03,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:10:04,296 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_2c2687f1-428d-42ce-b8c3-5e706f019de8/sv-benchmarks/c/list-simple/sll2c_update_all.i[24418,24431] [2021-11-23 17:10:04,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:04,317 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:10:04,389 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_2c2687f1-428d-42ce-b8c3-5e706f019de8/sv-benchmarks/c/list-simple/sll2c_update_all.i[24418,24431] [2021-11-23 17:10:04,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:04,429 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:10:04,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:04 WrapperNode [2021-11-23 17:10:04,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:10:04,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:10:04,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:10:04,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:10:04,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:04" (1/1) ... [2021-11-23 17:10:04,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:04" (1/1) ... [2021-11-23 17:10:04,506 INFO L137 Inliner]: procedures = 126, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 127 [2021-11-23 17:10:04,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:10:04,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:10:04,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:10:04,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:10:04,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:04" (1/1) ... [2021-11-23 17:10:04,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:04" (1/1) ... [2021-11-23 17:10:04,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:04" (1/1) ... [2021-11-23 17:10:04,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:04" (1/1) ... [2021-11-23 17:10:04,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:04" (1/1) ... [2021-11-23 17:10:04,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:04" (1/1) ... [2021-11-23 17:10:04,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:04" (1/1) ... [2021-11-23 17:10:04,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:10:04,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:10:04,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:10:04,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:10:04,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:04" (1/1) ... [2021-11-23 17:10:04,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:10:04,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:10:04,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:10:04,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:10:04,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:10:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:10:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-11-23 17:10:04,641 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-11-23 17:10:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:10:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:10:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:10:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:10:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:10:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:10:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:10:04,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:10:04,814 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:10:04,816 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:10:05,103 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:10:05,108 INFO L158 Benchmark]: Toolchain (without parser) took 1324.46ms. Allocated memory is still 94.4MB. Free memory was 55.7MB in the beginning and 47.4MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:10:05,109 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 94.4MB. Free memory was 73.5MB in the beginning and 73.4MB in the end (delta: 76.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:10:05,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 645.17ms. Allocated memory is still 94.4MB. Free memory was 55.4MB in the beginning and 63.6MB in the end (delta: -8.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:10:05,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.98ms. Allocated memory is still 94.4MB. Free memory was 63.6MB in the beginning and 61.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:10:05,113 INFO L158 Benchmark]: Boogie Preprocessor took 40.97ms. Allocated memory is still 94.4MB. Free memory was 61.3MB in the beginning and 59.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:10:05,114 INFO L158 Benchmark]: RCFGBuilder took 557.34ms. Allocated memory is still 94.4MB. Free memory was 59.7MB in the beginning and 47.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:10:05,119 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 94.4MB. Free memory was 73.5MB in the beginning and 73.4MB in the end (delta: 76.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 645.17ms. Allocated memory is still 94.4MB. Free memory was 55.4MB in the beginning and 63.6MB in the end (delta: -8.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.98ms. Allocated memory is still 94.4MB. Free memory was 63.6MB in the beginning and 61.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.97ms. Allocated memory is still 94.4MB. Free memory was 61.3MB in the beginning and 59.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 557.34ms. Allocated memory is still 94.4MB. Free memory was 59.7MB in the beginning and 47.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. 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 17:10:05,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/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_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/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_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/sll2c_update_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e86102617f1813255879beda7bab492587801800e6506c4c5cd56fb9179f8713 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:10:08,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:10:08,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:10:08,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:10:08,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:10:08,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:10:08,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:10:08,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:10:08,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:10:08,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:10:08,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:10:08,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:10:08,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:10:08,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:10:08,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:10:08,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:10:08,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:10:08,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:10:08,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:10:08,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:10:08,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:10:08,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:10:08,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:10:08,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:10:08,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:10:08,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:10:08,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:10:08,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:10:08,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:10:08,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:10:08,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:10:08,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:10:08,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:10:08,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:10:08,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:10:08,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:10:08,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:10:08,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:10:08,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:10:08,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:10:08,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:10:08,211 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:10:08,267 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:10:08,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:10:08,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:10:08,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:10:08,272 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:10:08,272 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:10:08,273 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:10:08,273 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:10:08,273 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:10:08,274 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:10:08,275 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:10:08,275 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:10:08,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:10:08,277 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:10:08,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:10:08,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:10:08,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:10:08,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:10:08,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:10:08,278 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:10:08,279 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:10:08,279 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:10:08,279 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:10:08,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:10:08,280 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:10:08,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:10:08,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:10:08,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:10:08,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:10:08,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:10:08,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:10:08,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:10:08,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:10:08,282 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:10:08,283 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:10:08,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:10:08,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:10:08,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:10:08,284 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_2c2687f1-428d-42ce-b8c3-5e706f019de8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e86102617f1813255879beda7bab492587801800e6506c4c5cd56fb9179f8713 [2021-11-23 17:10:08,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:10:08,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:10:08,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:10:08,794 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:10:08,795 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:10:08,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-simple/sll2c_update_all.i [2021-11-23 17:10:08,875 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/data/5331a8511/1f3e7ba8cf8044e6abbad6c06fca3e39/FLAG0c1995a40 [2021-11-23 17:10:09,607 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:10:09,608 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/sv-benchmarks/c/list-simple/sll2c_update_all.i [2021-11-23 17:10:09,623 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/data/5331a8511/1f3e7ba8cf8044e6abbad6c06fca3e39/FLAG0c1995a40 [2021-11-23 17:10:09,876 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/data/5331a8511/1f3e7ba8cf8044e6abbad6c06fca3e39 [2021-11-23 17:10:09,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:10:09,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:10:09,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:10:09,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:10:09,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:10:09,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:10:09" (1/1) ... [2021-11-23 17:10:09,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e178115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:09, skipping insertion in model container [2021-11-23 17:10:09,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:10:09" (1/1) ... [2021-11-23 17:10:09,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:10:09,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:10:10,299 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_2c2687f1-428d-42ce-b8c3-5e706f019de8/sv-benchmarks/c/list-simple/sll2c_update_all.i[24418,24431] [2021-11-23 17:10:10,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:10,324 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:10:10,400 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_2c2687f1-428d-42ce-b8c3-5e706f019de8/sv-benchmarks/c/list-simple/sll2c_update_all.i[24418,24431] [2021-11-23 17:10:10,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:10,451 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:10:10,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:10 WrapperNode [2021-11-23 17:10:10,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:10:10,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:10:10,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:10:10,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:10:10,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:10" (1/1) ... [2021-11-23 17:10:10,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:10" (1/1) ... [2021-11-23 17:10:10,538 INFO L137 Inliner]: procedures = 129, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 127 [2021-11-23 17:10:10,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:10:10,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:10:10,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:10:10,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:10:10,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:10" (1/1) ... [2021-11-23 17:10:10,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:10" (1/1) ... [2021-11-23 17:10:10,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:10" (1/1) ... [2021-11-23 17:10:10,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:10" (1/1) ... [2021-11-23 17:10:10,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:10" (1/1) ... [2021-11-23 17:10:10,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:10" (1/1) ... [2021-11-23 17:10:10,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:10" (1/1) ... [2021-11-23 17:10:10,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:10:10,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:10:10,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:10:10,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:10:10,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:10" (1/1) ... [2021-11-23 17:10:10,627 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:10:10,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:10:10,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:10:10,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:10:10,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:10:10,709 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-11-23 17:10:10,709 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-11-23 17:10:10,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:10:10,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:10:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:10:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:10:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:10:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:10:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:10:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:10:10,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:10:10,898 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:10:10,900 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:10:11,173 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:10:11,177 INFO L158 Benchmark]: Toolchain (without parser) took 1295.59ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 51.4MB in the beginning and 75.0MB in the end (delta: -23.5MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2021-11-23 17:10:11,177 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 71.3MB. Free memory was 52.4MB in the beginning and 52.3MB in the end (delta: 54.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:10:11,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.43ms. Allocated memory is still 71.3MB. Free memory was 51.2MB in the beginning and 46.3MB in the end (delta: 4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:10:11,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.31ms. Allocated memory is still 71.3MB. Free memory was 46.3MB in the beginning and 43.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:10:11,180 INFO L158 Benchmark]: Boogie Preprocessor took 70.98ms. Allocated memory is still 71.3MB. Free memory was 43.9MB in the beginning and 42.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:10:11,181 INFO L158 Benchmark]: RCFGBuilder took 563.50ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 41.9MB in the beginning and 75.0MB in the end (delta: -33.1MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2021-11-23 17:10:11,184 INFO L339 ainManager$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 71.3MB. Free memory was 52.4MB in the beginning and 52.3MB in the end (delta: 54.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.43ms. Allocated memory is still 71.3MB. Free memory was 51.2MB in the beginning and 46.3MB in the end (delta: 4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.31ms. Allocated memory is still 71.3MB. Free memory was 46.3MB in the beginning and 43.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.98ms. Allocated memory is still 71.3MB. Free memory was 43.9MB in the beginning and 42.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 563.50ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 41.9MB in the beginning and 75.0MB in the end (delta: -33.1MB). Peak memory consumption was 14.9MB. 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 17:10:11,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2687f1-428d-42ce-b8c3-5e706f019de8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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