./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-properties/simple_built_from_end.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-properties/simple_built_from_end.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 0eb3d3e07cae1efa9dc9af5091aea6a309746434756c62bcf3ece83b84aec27a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:43:03,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:43:03,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:43:03,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:43:03,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:43:03,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:43:03,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:43:03,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:43:03,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:43:03,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:43:03,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:43:03,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:43:03,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:43:03,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:43:03,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:43:03,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:43:03,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:43:03,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:43:03,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:43:03,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:43:03,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:43:03,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:43:03,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:43:03,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:43:03,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:43:03,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:43:03,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:43:03,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:43:03,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:43:03,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:43:03,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:43:03,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:43:03,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:43:03,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:43:03,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:43:03,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:43:03,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:43:03,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:43:03,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:43:03,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:43:03,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:43:03,219 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:43:03,256 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:43:03,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:43:03,257 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:43:03,257 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:43:03,258 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:43:03,259 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:43:03,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:43:03,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:43:03,259 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:43:03,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:43:03,260 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:43:03,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:43:03,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:43:03,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:43:03,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:43:03,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:43:03,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:43:03,262 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:43:03,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:43:03,262 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:43:03,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:43:03,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:43:03,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:43:03,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:43:03,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:43:03,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:43:03,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:43:03,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:43:03,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:43:03,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:43:03,264 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:43:03,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:43:03,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:43:03,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:43:03,265 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0eb3d3e07cae1efa9dc9af5091aea6a309746434756c62bcf3ece83b84aec27a [2021-12-15 10:43:03,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:43:03,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:43:03,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:43:03,563 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:43:03,564 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:43:03,565 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/simple_built_from_end.i [2021-12-15 10:43:03,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7278742d2/c4b6f812c32a4277bcbfd60fe930b9ed/FLAG902a3dbab [2021-12-15 10:43:04,078 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:43:04,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/simple_built_from_end.i [2021-12-15 10:43:04,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7278742d2/c4b6f812c32a4277bcbfd60fe930b9ed/FLAG902a3dbab [2021-12-15 10:43:04,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7278742d2/c4b6f812c32a4277bcbfd60fe930b9ed [2021-12-15 10:43:04,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:43:04,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:43:04,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:43:04,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:43:04,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:43:04,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:43:04" (1/1) ... [2021-12-15 10:43:04,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da4c326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:04, skipping insertion in model container [2021-12-15 10:43:04,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:43:04" (1/1) ... [2021-12-15 10:43:04,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:43:04,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:43:04,755 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-properties/simple_built_from_end.i[23125,23138] [2021-12-15 10:43:04,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:43:04,769 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:43:04,816 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-properties/simple_built_from_end.i[23125,23138] [2021-12-15 10:43:04,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:43:04,838 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:43:04,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:04 WrapperNode [2021-12-15 10:43:04,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:43:04,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:43:04,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:43:04,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:43:04,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:04" (1/1) ... [2021-12-15 10:43:04,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:04" (1/1) ... [2021-12-15 10:43:04,887 INFO L137 Inliner]: procedures = 124, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2021-12-15 10:43:04,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:43:04,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:43:04,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:43:04,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:43:04,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:04" (1/1) ... [2021-12-15 10:43:04,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:04" (1/1) ... [2021-12-15 10:43:04,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:04" (1/1) ... [2021-12-15 10:43:04,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:04" (1/1) ... [2021-12-15 10:43:04,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:04" (1/1) ... [2021-12-15 10:43:04,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:04" (1/1) ... [2021-12-15 10:43:04,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:04" (1/1) ... [2021-12-15 10:43:04,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:43:04,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:43:04,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:43:04,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:43:04,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:04" (1/1) ... [2021-12-15 10:43:04,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:43:04,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:43:04,953 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 10:43:04,978 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 10:43:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 10:43:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 10:43:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:43:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:43:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:43:04,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:43:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:43:04,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:43:04,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:43:05,123 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:43:05,133 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:43:05,144 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:43:05,151 INFO L158 Benchmark]: Toolchain (without parser) took 724.89ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 42.7MB in the beginning and 67.2MB in the end (delta: -24.5MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2021-12-15 10:43:05,152 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 79.7MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:43:05,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.56ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 42.5MB in the beginning and 77.2MB in the end (delta: -34.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 10:43:05,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.49ms. Allocated memory is still 107.0MB. Free memory was 77.2MB in the beginning and 75.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:43:05,153 INFO L158 Benchmark]: Boogie Preprocessor took 27.55ms. Allocated memory is still 107.0MB. Free memory was 75.4MB in the beginning and 74.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:43:05,154 INFO L158 Benchmark]: RCFGBuilder took 231.76ms. Allocated memory is still 107.0MB. Free memory was 73.9MB in the beginning and 67.2MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 10:43:05,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 79.7MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.56ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 42.5MB in the beginning and 77.2MB in the end (delta: -34.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.49ms. Allocated memory is still 107.0MB. Free memory was 77.2MB in the beginning and 75.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.55ms. Allocated memory is still 107.0MB. Free memory was 75.4MB in the beginning and 74.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 231.76ms. Allocated memory is still 107.0MB. Free memory was 73.9MB in the beginning and 67.2MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 10:43:05,230 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 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-properties/simple_built_from_end.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 0eb3d3e07cae1efa9dc9af5091aea6a309746434756c62bcf3ece83b84aec27a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:43:07,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:43:07,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:43:07,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:43:07,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:43:07,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:43:07,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:43:07,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:43:07,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:43:07,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:43:07,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:43:07,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:43:07,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:43:07,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:43:07,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:43:07,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:43:07,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:43:07,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:43:07,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:43:07,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:43:07,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:43:07,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:43:07,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:43:07,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:43:07,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:43:07,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:43:07,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:43:07,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:43:07,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:43:07,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:43:07,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:43:07,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:43:07,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:43:07,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:43:07,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:43:07,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:43:07,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:43:07,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:43:07,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:43:07,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:43:07,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:43:07,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:43:07,417 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:43:07,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:43:07,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:43:07,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:43:07,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:43:07,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:43:07,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:43:07,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:43:07,421 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:43:07,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:43:07,422 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:43:07,423 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:43:07,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:43:07,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:43:07,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:43:07,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:43:07,424 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:43:07,424 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:43:07,424 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:43:07,424 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:43:07,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:43:07,425 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:43:07,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:43:07,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:43:07,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:43:07,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:43:07,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:43:07,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:43:07,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:43:07,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:43:07,426 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:43:07,426 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:43:07,427 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:43:07,427 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:43:07,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:43:07,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:43:07,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:43:07,428 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0eb3d3e07cae1efa9dc9af5091aea6a309746434756c62bcf3ece83b84aec27a [2021-12-15 10:43:07,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:43:07,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:43:07,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:43:07,744 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:43:07,744 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:43:07,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/simple_built_from_end.i [2021-12-15 10:43:07,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df26f5fec/1ee6324f15d249cbb86c079d3c539746/FLAGaec6338c0 [2021-12-15 10:43:08,351 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:43:08,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/simple_built_from_end.i [2021-12-15 10:43:08,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df26f5fec/1ee6324f15d249cbb86c079d3c539746/FLAGaec6338c0 [2021-12-15 10:43:08,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df26f5fec/1ee6324f15d249cbb86c079d3c539746 [2021-12-15 10:43:08,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:43:08,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:43:08,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:43:08,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:43:08,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:43:08,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:43:08" (1/1) ... [2021-12-15 10:43:08,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a84c02f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:08, skipping insertion in model container [2021-12-15 10:43:08,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:43:08" (1/1) ... [2021-12-15 10:43:08,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:43:08,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:43:09,097 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-properties/simple_built_from_end.i[23125,23138] [2021-12-15 10:43:09,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:43:09,113 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:43:09,179 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-properties/simple_built_from_end.i[23125,23138] [2021-12-15 10:43:09,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:43:09,209 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:43:09,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:09 WrapperNode [2021-12-15 10:43:09,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:43:09,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:43:09,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:43:09,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:43:09,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:09" (1/1) ... [2021-12-15 10:43:09,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:09" (1/1) ... [2021-12-15 10:43:09,262 INFO L137 Inliner]: procedures = 127, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2021-12-15 10:43:09,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:43:09,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:43:09,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:43:09,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:43:09,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:09" (1/1) ... [2021-12-15 10:43:09,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:09" (1/1) ... [2021-12-15 10:43:09,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:09" (1/1) ... [2021-12-15 10:43:09,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:09" (1/1) ... [2021-12-15 10:43:09,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:09" (1/1) ... [2021-12-15 10:43:09,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:09" (1/1) ... [2021-12-15 10:43:09,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:09" (1/1) ... [2021-12-15 10:43:09,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:43:09,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:43:09,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:43:09,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:43:09,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:09" (1/1) ... [2021-12-15 10:43:09,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:43:09,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:43:09,365 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 10:43:09,378 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 10:43:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 10:43:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:43:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:43:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:43:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:43:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 10:43:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:43:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:43:09,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:43:09,487 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:43:09,488 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:43:09,499 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:43:09,503 INFO L158 Benchmark]: Toolchain (without parser) took 677.86ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 23.1MB in the beginning and 36.9MB in the end (delta: -13.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-12-15 10:43:09,503 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 48.2MB. Free memory was 31.0MB in the beginning and 31.0MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:43:09,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.08ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 23.0MB in the beginning and 35.3MB in the end (delta: -12.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-12-15 10:43:09,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.74ms. Allocated memory is still 58.7MB. Free memory was 35.3MB in the beginning and 33.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:43:09,505 INFO L158 Benchmark]: Boogie Preprocessor took 59.32ms. Allocated memory is still 58.7MB. Free memory was 33.5MB in the beginning and 32.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:43:09,506 INFO L158 Benchmark]: RCFGBuilder took 177.51ms. Allocated memory is still 58.7MB. Free memory was 32.0MB in the beginning and 36.9MB in the end (delta: -4.9MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2021-12-15 10:43:09,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 48.2MB. Free memory was 31.0MB in the beginning and 31.0MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 386.08ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 23.0MB in the beginning and 35.3MB in the end (delta: -12.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.74ms. Allocated memory is still 58.7MB. Free memory was 35.3MB in the beginning and 33.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.32ms. Allocated memory is still 58.7MB. Free memory was 33.5MB in the beginning and 32.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 177.51ms. Allocated memory is still 58.7MB. Free memory was 32.0MB in the beginning and 36.9MB in the end (delta: -4.9MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 10:43:09,547 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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable