./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fecbd384f63aa34e01807a3a6735a322a2435f1312f0df3ed763fde7f43fe0a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:47:03,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:47:03,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:47:03,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:47:03,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:47:03,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:47:03,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:47:03,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:47:03,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:47:03,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:47:03,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:47:03,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:47:03,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:47:03,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:47:03,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:47:03,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:47:03,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:47:03,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:47:03,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:47:03,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:47:03,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:47:03,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:47:03,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:47:03,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:47:03,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:47:03,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:47:03,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:47:03,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:47:03,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:47:03,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:47:03,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:47:03,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:47:03,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:47:03,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:47:03,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:47:03,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:47:03,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:47:03,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:47:03,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:47:03,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:47:03,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:47:03,494 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:47:03,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:47:03,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:47:03,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:47:03,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:47:03,516 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:47:03,516 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:47:03,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:47:03,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:47:03,516 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:47:03,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:47:03,517 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:47:03,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:47:03,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:47:03,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:47:03,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:47:03,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:47:03,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:47:03,518 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:47:03,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:47:03,518 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:47:03,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:47:03,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:47:03,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:47:03,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:47:03,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:47:03,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:47:03,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:47:03,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:47:03,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:47:03,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:47:03,520 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:47:03,520 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:47:03,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:47:03,520 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:47:03,521 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fecbd384f63aa34e01807a3a6735a322a2435f1312f0df3ed763fde7f43fe0a [2021-12-15 10:47:03,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:47:03,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:47:03,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:47:03,745 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:47:03,746 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:47:03,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i [2021-12-15 10:47:03,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c5faa1a5/a9c134dc1d53482c924ba47ba25cd1ac/FLAGcfa953cbc [2021-12-15 10:47:04,181 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:47:04,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i [2021-12-15 10:47:04,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c5faa1a5/a9c134dc1d53482c924ba47ba25cd1ac/FLAGcfa953cbc [2021-12-15 10:47:04,529 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c5faa1a5/a9c134dc1d53482c924ba47ba25cd1ac [2021-12-15 10:47:04,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:47:04,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:47:04,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:04,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:47:04,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:47:04,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:04" (1/1) ... [2021-12-15 10:47:04,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@204ad4ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:04, skipping insertion in model container [2021-12-15 10:47:04,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:04" (1/1) ... [2021-12-15 10:47:04,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:47:04,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:47:04,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i[24436,24449] [2021-12-15 10:47:04,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:04,871 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:47:04,918 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i[24436,24449] [2021-12-15 10:47:04,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:04,941 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:47:04,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:04 WrapperNode [2021-12-15 10:47:04,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:04,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:04,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:47:04,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:47:04,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:04" (1/1) ... [2021-12-15 10:47:04,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:04" (1/1) ... [2021-12-15 10:47:04,978 INFO L137 Inliner]: procedures = 126, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 127 [2021-12-15 10:47:04,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:04,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:47:04,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:47:04,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:47:04,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:04" (1/1) ... [2021-12-15 10:47:04,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:04" (1/1) ... [2021-12-15 10:47:04,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:04" (1/1) ... [2021-12-15 10:47:04,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:04" (1/1) ... [2021-12-15 10:47:04,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:04" (1/1) ... [2021-12-15 10:47:04,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:04" (1/1) ... [2021-12-15 10:47:04,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:04" (1/1) ... [2021-12-15 10:47:05,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:47:05,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:47:05,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:47:05,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:47:05,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:04" (1/1) ... [2021-12-15 10:47:05,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:47:05,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:47:05,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 10:47:05,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 10:47:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 10:47:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 10:47:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-12-15 10:47:05,063 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-12-15 10:47:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:47:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:47:05,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:47:05,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:47:05,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:47:05,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:47:05,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:47:05,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:47:05,137 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:47:05,138 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:47:05,256 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:47:05,271 INFO L158 Benchmark]: Toolchain (without parser) took 738.47ms. Allocated memory is still 88.1MB. Free memory was 48.9MB in the beginning and 41.0MB in the end (delta: 7.8MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2021-12-15 10:47:05,275 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 88.1MB. Free memory was 66.4MB in the beginning and 66.3MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:47:05,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.87ms. Allocated memory is still 88.1MB. Free memory was 67.4MB in the beginning and 57.2MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 10:47:05,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.80ms. Allocated memory is still 88.1MB. Free memory was 57.2MB in the beginning and 55.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:05,277 INFO L158 Benchmark]: Boogie Preprocessor took 21.35ms. Allocated memory is still 88.1MB. Free memory was 55.0MB in the beginning and 53.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:05,278 INFO L158 Benchmark]: RCFGBuilder took 267.32ms. Allocated memory is still 88.1MB. Free memory was 53.3MB in the beginning and 41.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 10:47:05,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 88.1MB. Free memory was 66.4MB in the beginning and 66.3MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.87ms. Allocated memory is still 88.1MB. Free memory was 67.4MB in the beginning and 57.2MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.80ms. Allocated memory is still 88.1MB. Free memory was 57.2MB in the beginning and 55.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.35ms. Allocated memory is still 88.1MB. Free memory was 55.0MB in the beginning and 53.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 267.32ms. Allocated memory is still 88.1MB. Free memory was 53.3MB in the beginning and 41.0MB 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. [2021-12-15 10:47:05,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fecbd384f63aa34e01807a3a6735a322a2435f1312f0df3ed763fde7f43fe0a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:47:07,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:47:07,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:47:07,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:47:07,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:47:07,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:47:07,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:47:07,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:47:07,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:47:07,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:47:07,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:47:07,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:47:07,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:47:07,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:47:07,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:47:07,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:47:07,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:47:07,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:47:07,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:47:07,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:47:07,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:47:07,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:47:07,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:47:07,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:47:07,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:47:07,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:47:07,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:47:07,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:47:07,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:47:07,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:47:07,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:47:07,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:47:07,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:47:07,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:47:07,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:47:07,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:47:07,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:47:07,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:47:07,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:47:07,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:47:07,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:47:07,177 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:47:07,210 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:47:07,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:47:07,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:47:07,211 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:47:07,212 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:47:07,212 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:47:07,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:47:07,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:47:07,214 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:47:07,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:47:07,215 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:47:07,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:47:07,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:47:07,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:47:07,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:47:07,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:47:07,216 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:47:07,216 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:47:07,216 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:47:07,216 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:47:07,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:47:07,216 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:47:07,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:47:07,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:47:07,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:47:07,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:47:07,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:47:07,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:47:07,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:47:07,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:47:07,218 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:47:07,218 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:47:07,218 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:47:07,218 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:47:07,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:47:07,219 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:47:07,219 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:47:07,219 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fecbd384f63aa34e01807a3a6735a322a2435f1312f0df3ed763fde7f43fe0a [2021-12-15 10:47:07,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:47:07,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:47:07,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:47:07,522 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:47:07,523 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:47:07,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i [2021-12-15 10:47:07,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/242524266/adf1cdbbd9c54e079730ad6ca056c0c2/FLAGfec71b150 [2021-12-15 10:47:08,064 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:47:08,065 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i [2021-12-15 10:47:08,084 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/242524266/adf1cdbbd9c54e079730ad6ca056c0c2/FLAGfec71b150 [2021-12-15 10:47:08,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/242524266/adf1cdbbd9c54e079730ad6ca056c0c2 [2021-12-15 10:47:08,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:47:08,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:47:08,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:08,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:47:08,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:47:08,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:08" (1/1) ... [2021-12-15 10:47:08,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@186e66da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:08, skipping insertion in model container [2021-12-15 10:47:08,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:08" (1/1) ... [2021-12-15 10:47:08,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:47:08,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:47:08,957 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i[24436,24449] [2021-12-15 10:47:08,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:08,973 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:47:09,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i[24436,24449] [2021-12-15 10:47:09,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:09,035 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:47:09,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:09 WrapperNode [2021-12-15 10:47:09,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:09,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:09,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:47:09,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:47:09,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:09" (1/1) ... [2021-12-15 10:47:09,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:09" (1/1) ... [2021-12-15 10:47:09,097 INFO L137 Inliner]: procedures = 129, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 127 [2021-12-15 10:47:09,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:09,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:47:09,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:47:09,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:47:09,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:09" (1/1) ... [2021-12-15 10:47:09,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:09" (1/1) ... [2021-12-15 10:47:09,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:09" (1/1) ... [2021-12-15 10:47:09,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:09" (1/1) ... [2021-12-15 10:47:09,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:09" (1/1) ... [2021-12-15 10:47:09,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:09" (1/1) ... [2021-12-15 10:47:09,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:09" (1/1) ... [2021-12-15 10:47:09,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:47:09,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:47:09,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:47:09,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:47:09,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:09" (1/1) ... [2021-12-15 10:47:09,159 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:47:09,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:47:09,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 10:47:09,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 10:47:09,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 10:47:09,225 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-12-15 10:47:09,225 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-12-15 10:47:09,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:47:09,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:47:09,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:47:09,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:47:09,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:47:09,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 10:47:09,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:47:09,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:47:09,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:47:09,331 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:47:09,333 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:47:09,474 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:47:09,477 INFO L158 Benchmark]: Toolchain (without parser) took 881.07ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.3MB in the beginning and 46.8MB in the end (delta: -12.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2021-12-15 10:47:09,478 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 56.6MB. Free memory was 39.5MB in the beginning and 39.5MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:47:09,478 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.33ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.0MB in the beginning and 46.9MB in the end (delta: -12.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 10:47:09,479 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.51ms. Allocated memory is still 71.3MB. Free memory was 46.7MB in the beginning and 44.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:09,479 INFO L158 Benchmark]: Boogie Preprocessor took 51.57ms. Allocated memory is still 71.3MB. Free memory was 44.5MB in the beginning and 42.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:09,480 INFO L158 Benchmark]: RCFGBuilder took 325.00ms. Allocated memory is still 71.3MB. Free memory was 42.5MB in the beginning and 46.8MB in the end (delta: -4.3MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2021-12-15 10:47:09,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 56.6MB. Free memory was 39.5MB in the beginning and 39.5MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.33ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.0MB in the beginning and 46.9MB in the end (delta: -12.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.51ms. Allocated memory is still 71.3MB. Free memory was 46.7MB in the beginning and 44.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.57ms. Allocated memory is still 71.3MB. Free memory was 44.5MB in the beginning and 42.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 325.00ms. Allocated memory is still 71.3MB. Free memory was 42.5MB in the beginning and 46.8MB in the end (delta: -4.3MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 10:47:09,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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