./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-properties/simple-2.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-2.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 a0d4825ef04f5689aff4ed3e5df593fedd83b7eb3ae072cea52c48718c9baf42 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:43:03,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:43:03,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:43:03,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:43:03,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:43:03,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:43:03,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:43:03,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:43:03,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:43:03,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:43:03,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:43:03,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:43:03,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:43:03,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:43:03,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:43:03,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:43:03,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:43:03,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:43:03,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:43:03,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:43:03,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:43:03,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:43:03,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:43:03,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:43:03,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:43:03,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:43:03,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:43:03,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:43:03,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:43:03,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:43:03,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:43:03,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:43:03,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:43:03,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:43:03,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:43:03,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:43:03,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:43:03,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:43:03,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:43:03,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:43:03,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:43:03,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:43:03,203 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:43:03,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:43:03,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:43:03,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:43:03,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:43:03,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:43:03,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:43:03,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:43:03,206 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:43:03,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:43:03,207 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:43:03,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:43:03,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:43:03,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:43:03,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:43:03,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:43:03,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:43:03,209 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:43:03,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:43:03,209 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:43:03,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:43:03,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:43:03,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:43:03,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:43:03,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:43:03,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:43:03,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:43:03,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:43:03,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:43:03,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:43:03,212 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:43:03,212 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:43:03,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:43:03,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:43:03,212 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0d4825ef04f5689aff4ed3e5df593fedd83b7eb3ae072cea52c48718c9baf42 [2021-12-15 10:43:03,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:43:03,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:43:03,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:43:03,465 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:43:03,466 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:43:03,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/simple-2.i [2021-12-15 10:43:03,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f8f28c7a/3ada2603795f42989660fca9358cc684/FLAGa8b946d8d [2021-12-15 10:43:04,009 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:43:04,010 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/simple-2.i [2021-12-15 10:43:04,020 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f8f28c7a/3ada2603795f42989660fca9358cc684/FLAGa8b946d8d [2021-12-15 10:43:04,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f8f28c7a/3ada2603795f42989660fca9358cc684 [2021-12-15 10:43:04,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:43:04,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:43:04,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:43:04,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:43:04,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:43:04,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:43:04" (1/1) ... [2021-12-15 10:43:04,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748903d7 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 10:43:04,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:43:04" (1/1) ... [2021-12-15 10:43:04,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:43:04,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:43:04,354 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-2.i[23225,23238] [2021-12-15 10:43:04,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:43:04,362 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:43:04,393 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-2.i[23225,23238] [2021-12-15 10:43:04,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:43:04,415 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:43:04,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:04 WrapperNode [2021-12-15 10:43:04,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:43:04,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:43:04,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:43:04,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:43:04,422 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 10:43:04,435 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 10:43:04,450 INFO L137 Inliner]: procedures = 124, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2021-12-15 10:43:04,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:43:04,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:43:04,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:43:04,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:43:04,458 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 10:43:04,458 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 10:43:04,460 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 10:43:04,460 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 10:43:04,465 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 10:43:04,467 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 10:43:04,468 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 10:43:04,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:43:04,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:43:04,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:43:04,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:43:04,472 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 10:43:04,478 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:43:04,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:43:04,499 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 10:43:04,507 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 10:43:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-12-15 10:43:04,526 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-12-15 10:43:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 10:43:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 10:43:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:43:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:43:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:43:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:43:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:43:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:43:04,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:43:04,613 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:43:04,615 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:43:04,622 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:43:04,634 INFO L158 Benchmark]: Toolchain (without parser) took 580.20ms. Allocated memory is still 94.4MB. Free memory was 64.8MB in the beginning and 53.9MB in the end (delta: 10.9MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-12-15 10:43:04,647 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 94.4MB. Free memory was 50.1MB in the beginning and 50.0MB in the end (delta: 49.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:43:04,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.05ms. Allocated memory is still 94.4MB. Free memory was 64.6MB in the beginning and 63.8MB in the end (delta: 774.8kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 10:43:04,648 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.71ms. Allocated memory is still 94.4MB. Free memory was 63.8MB in the beginning and 61.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:43:04,649 INFO L158 Benchmark]: Boogie Preprocessor took 18.31ms. Allocated memory is still 94.4MB. Free memory was 61.9MB in the beginning and 60.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:43:04,649 INFO L158 Benchmark]: RCFGBuilder took 154.51ms. Allocated memory is still 94.4MB. Free memory was 60.5MB in the beginning and 53.9MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 10:43:04,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 94.4MB. Free memory was 50.1MB in the beginning and 50.0MB in the end (delta: 49.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 369.05ms. Allocated memory is still 94.4MB. Free memory was 64.6MB in the beginning and 63.8MB in the end (delta: 774.8kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.71ms. Allocated memory is still 94.4MB. Free memory was 63.8MB in the beginning and 61.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.31ms. Allocated memory is still 94.4MB. Free memory was 61.9MB in the beginning and 60.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 154.51ms. Allocated memory is still 94.4MB. Free memory was 60.5MB in the beginning and 53.9MB in the end (delta: 6.6MB). 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 10:43:04,694 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-properties/simple-2.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 a0d4825ef04f5689aff4ed3e5df593fedd83b7eb3ae072cea52c48718c9baf42 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:43:06,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:43:06,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:43:06,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:43:06,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:43:06,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:43:06,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:43:06,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:43:06,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:43:06,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:43:06,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:43:06,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:43:06,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:43:06,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:43:06,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:43:06,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:43:06,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:43:06,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:43:06,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:43:06,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:43:06,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:43:06,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:43:06,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:43:06,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:43:06,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:43:06,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:43:06,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:43:06,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:43:06,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:43:06,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:43:06,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:43:06,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:43:06,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:43:06,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:43:06,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:43:06,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:43:06,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:43:06,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:43:06,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:43:06,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:43:06,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:43:06,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:43:06,683 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:43:06,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:43:06,686 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:43:06,686 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:43:06,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:43:06,687 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:43:06,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:43:06,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:43:06,688 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:43:06,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:43:06,689 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:43:06,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:43:06,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:43:06,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:43:06,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:43:06,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:43:06,691 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:43:06,691 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:43:06,691 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:43:06,691 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:43:06,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:43:06,692 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:43:06,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:43:06,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:43:06,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:43:06,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:43:06,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:43:06,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:43:06,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:43:06,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:43:06,700 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:43:06,700 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:43:06,700 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:43:06,701 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:43:06,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:43:06,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:43:06,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:43:06,701 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0d4825ef04f5689aff4ed3e5df593fedd83b7eb3ae072cea52c48718c9baf42 [2021-12-15 10:43:06,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:43:07,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:43:07,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:43:07,021 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:43:07,021 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:43:07,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/simple-2.i [2021-12-15 10:43:07,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d86aed74/c68c217a2946457bbb7630b71143cbf3/FLAG616dbd4f9 [2021-12-15 10:43:07,560 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:43:07,562 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/simple-2.i [2021-12-15 10:43:07,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d86aed74/c68c217a2946457bbb7630b71143cbf3/FLAG616dbd4f9 [2021-12-15 10:43:07,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d86aed74/c68c217a2946457bbb7630b71143cbf3 [2021-12-15 10:43:07,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:43:07,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:43:07,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:43:07,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:43:07,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:43:07,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:43:07" (1/1) ... [2021-12-15 10:43:07,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb8107f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:07, skipping insertion in model container [2021-12-15 10:43:07,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:43:07" (1/1) ... [2021-12-15 10:43:07,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:43:07,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:43:08,190 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-2.i[23225,23238] [2021-12-15 10:43:08,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:43:08,202 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:43:08,234 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-2.i[23225,23238] [2021-12-15 10:43:08,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:43:08,261 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:43:08,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:08 WrapperNode [2021-12-15 10:43:08,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:43:08,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:43:08,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:43:08,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:43:08,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:08" (1/1) ... [2021-12-15 10:43:08,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:08" (1/1) ... [2021-12-15 10:43:08,297 INFO L137 Inliner]: procedures = 127, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2021-12-15 10:43:08,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:43:08,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:43:08,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:43:08,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:43:08,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:08" (1/1) ... [2021-12-15 10:43:08,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:08" (1/1) ... [2021-12-15 10:43:08,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:08" (1/1) ... [2021-12-15 10:43:08,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:08" (1/1) ... [2021-12-15 10:43:08,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:08" (1/1) ... [2021-12-15 10:43:08,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:08" (1/1) ... [2021-12-15 10:43:08,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:08" (1/1) ... [2021-12-15 10:43:08,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:43:08,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:43:08,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:43:08,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:43:08,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:08" (1/1) ... [2021-12-15 10:43:08,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:43:08,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:43:08,365 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 10:43:08,368 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 10:43:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-12-15 10:43:08,392 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-12-15 10:43:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 10:43:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:43:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:43:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:43:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:43:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 10:43:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:43:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:43:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:43:08,475 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:43:08,493 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:43:08,500 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:43:08,519 INFO L158 Benchmark]: Toolchain (without parser) took 592.85ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.2MB in the beginning and 41.7MB in the end (delta: -15.5MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-12-15 10:43:08,520 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 50.3MB. Free memory is still 32.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:43:08,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.67ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.0MB in the beginning and 37.1MB in the end (delta: -11.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-12-15 10:43:08,521 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.69ms. Allocated memory is still 60.8MB. Free memory was 37.1MB in the beginning and 35.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:43:08,522 INFO L158 Benchmark]: Boogie Preprocessor took 31.62ms. Allocated memory is still 60.8MB. Free memory was 35.2MB in the beginning and 33.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:43:08,523 INFO L158 Benchmark]: RCFGBuilder took 171.82ms. Allocated memory is still 60.8MB. Free memory was 33.6MB in the beginning and 41.7MB in the end (delta: -8.1MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2021-12-15 10:43:08,525 INFO L339 ainManager$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 50.3MB. Free memory is still 32.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.67ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.0MB in the beginning and 37.1MB in the end (delta: -11.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.69ms. Allocated memory is still 60.8MB. Free memory was 37.1MB in the beginning and 35.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.62ms. Allocated memory is still 60.8MB. Free memory was 35.2MB in the beginning and 33.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 171.82ms. Allocated memory is still 60.8MB. Free memory was 33.6MB in the beginning and 41.7MB in the end (delta: -8.1MB). Peak memory consumption was 10.2MB. 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 10:43:08,560 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