./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-simple/sll2c_append_unequal.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_append_unequal.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 d83e632829c1e193271bd76b90e08187eb94c70000e5f11d7aea101b3ec9a9e6 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:46:59,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:46:59,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:46:59,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:46:59,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:46:59,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:46:59,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:46:59,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:46:59,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:46:59,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:46:59,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:46:59,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:46:59,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:46:59,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:46:59,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:46:59,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:46:59,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:46:59,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:46:59,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:46:59,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:46:59,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:46:59,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:46:59,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:46:59,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:46:59,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:46:59,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:46:59,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:46:59,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:46:59,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:46:59,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:46:59,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:46:59,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:46:59,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:46:59,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:46:59,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:46:59,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:46:59,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:46:59,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:46:59,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:46:59,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:46:59,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:46:59,810 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:46:59,846 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:46:59,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:46:59,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:46:59,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:46:59,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:46:59,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:46:59,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:46:59,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:46:59,850 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:46:59,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:46:59,851 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:46:59,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:46:59,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:46:59,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:46:59,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:46:59,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:46:59,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:46:59,852 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:46:59,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:46:59,853 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:46:59,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:46:59,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:46:59,853 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:46:59,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:46:59,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:46:59,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:46:59,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:46:59,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:46:59,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:46:59,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:46:59,855 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:46:59,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:46:59,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:46:59,856 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:46:59,856 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d83e632829c1e193271bd76b90e08187eb94c70000e5f11d7aea101b3ec9a9e6 [2021-12-15 10:47:00,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:47:00,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:47:00,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:47:00,137 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:47:00,137 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:47:00,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/sll2c_append_unequal.i [2021-12-15 10:47:00,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/120190a6c/1e7072cec0dc4945b4a2373bbc4a1cf3/FLAGb1fb42388 [2021-12-15 10:47:00,687 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:47:00,687 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_append_unequal.i [2021-12-15 10:47:00,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/120190a6c/1e7072cec0dc4945b4a2373bbc4a1cf3/FLAGb1fb42388 [2021-12-15 10:47:01,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/120190a6c/1e7072cec0dc4945b4a2373bbc4a1cf3 [2021-12-15 10:47:01,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:47:01,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:47:01,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:01,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:47:01,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:47:01,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:01" (1/1) ... [2021-12-15 10:47:01,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd82458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:01, skipping insertion in model container [2021-12-15 10:47:01,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:01" (1/1) ... [2021-12-15 10:47:01,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:47:01,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:47:01,316 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_append_unequal.i[24587,24600] [2021-12-15 10:47:01,319 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:01,326 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:47:01,364 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_append_unequal.i[24587,24600] [2021-12-15 10:47:01,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:01,393 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:47:01,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:01 WrapperNode [2021-12-15 10:47:01,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:01,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:01,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:47:01,395 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:47:01,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:01" (1/1) ... [2021-12-15 10:47:01,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:01" (1/1) ... [2021-12-15 10:47:01,440 INFO L137 Inliner]: procedures = 127, calls = 46, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 158 [2021-12-15 10:47:01,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:01,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:47:01,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:47:01,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:47:01,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:01" (1/1) ... [2021-12-15 10:47:01,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:01" (1/1) ... [2021-12-15 10:47:01,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:01" (1/1) ... [2021-12-15 10:47:01,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:01" (1/1) ... [2021-12-15 10:47:01,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:01" (1/1) ... [2021-12-15 10:47:01,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:01" (1/1) ... [2021-12-15 10:47:01,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:01" (1/1) ... [2021-12-15 10:47:01,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:47:01,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:47:01,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:47:01,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:47:01,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:01" (1/1) ... [2021-12-15 10:47:01,482 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:47:01,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:47:01,500 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 10:47:01,502 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 10:47:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 10:47:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 10:47:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-12-15 10:47:01,528 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-12-15 10:47:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:47:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:47:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:47:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:47:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:47:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:47:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 10:47:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:47:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:47:01,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:47:01,655 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:47:01,661 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:47:01,829 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:47:01,833 INFO L158 Benchmark]: Toolchain (without parser) took 793.90ms. Allocated memory is still 98.6MB. Free memory was 65.6MB in the beginning and 48.4MB in the end (delta: 17.2MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2021-12-15 10:47:01,833 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 98.6MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:47:01,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.00ms. Allocated memory is still 98.6MB. Free memory was 65.4MB in the beginning and 66.3MB in the end (delta: -961.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 10:47:01,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.76ms. Allocated memory is still 98.6MB. Free memory was 66.3MB in the beginning and 64.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:01,835 INFO L158 Benchmark]: Boogie Preprocessor took 27.37ms. Allocated memory is still 98.6MB. Free memory was 64.0MB in the beginning and 62.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:01,836 INFO L158 Benchmark]: RCFGBuilder took 361.94ms. Allocated memory is still 98.6MB. Free memory was 62.3MB in the beginning and 48.4MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 10:47:01,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 98.6MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.00ms. Allocated memory is still 98.6MB. Free memory was 65.4MB in the beginning and 66.3MB in the end (delta: -961.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.76ms. Allocated memory is still 98.6MB. Free memory was 66.3MB in the beginning and 64.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.37ms. Allocated memory is still 98.6MB. Free memory was 64.0MB in the beginning and 62.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 361.94ms. Allocated memory is still 98.6MB. Free memory was 62.3MB in the beginning and 48.4MB in the end (delta: 13.9MB). 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 10:47:01,887 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_append_unequal.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 d83e632829c1e193271bd76b90e08187eb94c70000e5f11d7aea101b3ec9a9e6 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:47:03,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:47:03,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:47:03,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:47:03,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:47:03,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:47:03,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:47:03,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:47:03,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:47:03,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:47:03,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:47:03,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:47:03,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:47:03,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:47:03,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:47:03,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:47:03,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:47:03,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:47:03,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:47:03,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:47:03,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:47:03,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:47:03,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:47:03,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:47:03,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:47:03,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:47:03,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:47:03,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:47:03,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:47:03,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:47:03,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:47:03,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:47:03,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:47:03,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:47:03,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:47:03,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:47:03,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:47:03,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:47:03,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:47:03,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:47:03,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:47:03,951 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:47:03,982 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:47:03,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:47:03,983 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:47:03,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:47:03,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:47:03,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:47:03,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:47:03,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:47:03,986 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:47:03,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:47:03,988 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:47:03,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:47:03,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:47:03,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:47:03,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:47:03,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:47:03,989 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:47:03,989 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:47:03,989 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:47:03,989 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:47:03,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:47:03,990 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:47:03,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:47:03,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:47:03,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:47:03,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:47:03,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:47:03,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:47:03,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:47:03,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:47:03,992 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:47:03,992 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:47:03,992 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:47:03,992 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:47:03,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:47:03,993 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:47:03,993 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:47:03,993 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d83e632829c1e193271bd76b90e08187eb94c70000e5f11d7aea101b3ec9a9e6 [2021-12-15 10:47:04,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:47:04,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:47:04,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:47:04,321 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:47:04,321 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:47:04,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/sll2c_append_unequal.i [2021-12-15 10:47:04,378 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8431fd9a4/acfe02fa00d94f5cacf6a8b6f9d313d3/FLAG520e34032 [2021-12-15 10:47:04,922 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:47:04,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_append_unequal.i [2021-12-15 10:47:04,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8431fd9a4/acfe02fa00d94f5cacf6a8b6f9d313d3/FLAG520e34032 [2021-12-15 10:47:05,394 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8431fd9a4/acfe02fa00d94f5cacf6a8b6f9d313d3 [2021-12-15 10:47:05,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:47:05,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:47:05,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:05,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:47:05,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:47:05,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:05" (1/1) ... [2021-12-15 10:47:05,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3748c8ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:05, skipping insertion in model container [2021-12-15 10:47:05,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:05" (1/1) ... [2021-12-15 10:47:05,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:47:05,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:47:05,698 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_append_unequal.i[24587,24600] [2021-12-15 10:47:05,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:05,720 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:47:05,784 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_append_unequal.i[24587,24600] [2021-12-15 10:47:05,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:05,824 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:47:05,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:05 WrapperNode [2021-12-15 10:47:05,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:05,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:05,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:47:05,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:47:05,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:05" (1/1) ... [2021-12-15 10:47:05,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:05" (1/1) ... [2021-12-15 10:47:05,890 INFO L137 Inliner]: procedures = 130, calls = 46, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 159 [2021-12-15 10:47:05,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:05,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:47:05,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:47:05,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:47:05,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:05" (1/1) ... [2021-12-15 10:47:05,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:05" (1/1) ... [2021-12-15 10:47:05,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:05" (1/1) ... [2021-12-15 10:47:05,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:05" (1/1) ... [2021-12-15 10:47:05,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:05" (1/1) ... [2021-12-15 10:47:05,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:05" (1/1) ... [2021-12-15 10:47:05,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:05" (1/1) ... [2021-12-15 10:47:05,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:47:05,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:47:05,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:47:05,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:47:05,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:05" (1/1) ... [2021-12-15 10:47:05,951 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:47:05,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:47:05,985 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 10:47:06,002 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 10:47:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 10:47:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2021-12-15 10:47:06,020 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2021-12-15 10:47:06,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:47:06,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:47:06,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:47:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:47:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:47:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:47:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 10:47:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 10:47:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:47:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:47:06,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:47:06,203 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:47:06,204 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:47:06,471 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:47:06,474 INFO L158 Benchmark]: Toolchain (without parser) took 1073.79ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 22.8MB in the beginning and 27.5MB in the end (delta: -4.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2021-12-15 10:47:06,475 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 30.8MB in the beginning and 30.7MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:47:06,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.88ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 22.6MB in the beginning and 33.6MB in the end (delta: -11.0MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2021-12-15 10:47:06,476 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.02ms. Allocated memory is still 58.7MB. Free memory was 33.6MB in the beginning and 31.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:06,477 INFO L158 Benchmark]: Boogie Preprocessor took 51.05ms. Allocated memory is still 58.7MB. Free memory was 31.2MB in the beginning and 29.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:06,477 INFO L158 Benchmark]: RCFGBuilder took 529.71ms. Allocated memory is still 58.7MB. Free memory was 29.1MB in the beginning and 27.5MB in the end (delta: 1.6MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2021-12-15 10:47:06,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 30.8MB in the beginning and 30.7MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 424.88ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 22.6MB in the beginning and 33.6MB in the end (delta: -11.0MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.02ms. Allocated memory is still 58.7MB. Free memory was 33.6MB in the beginning and 31.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.05ms. Allocated memory is still 58.7MB. Free memory was 31.2MB in the beginning and 29.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.71ms. Allocated memory is still 58.7MB. Free memory was 29.1MB in the beginning and 27.5MB in the end (delta: 1.6MB). Peak memory consumption was 5.5MB. 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 10:47:06,521 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