./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-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-ext3-properties/sll_of_sll_nondet_append-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 68e1c5cf050539b3ee8f058d38ff7af5aea2a400d05e41e0185e4509f45301e0 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:47:28,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:47:28,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:47:28,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:47:28,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:47:28,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:47:28,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:47:28,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:47:28,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:47:28,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:47:28,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:47:28,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:47:28,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:47:28,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:47:28,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:47:28,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:47:28,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:47:28,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:47:28,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:47:28,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:47:28,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:47:28,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:47:28,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:47:28,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:47:28,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:47:28,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:47:28,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:47:28,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:47:28,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:47:28,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:47:28,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:47:28,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:47:28,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:47:28,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:47:28,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:47:28,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:47:28,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:47:28,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:47:28,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:47:28,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:47:28,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:47:28,310 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:47:28,342 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:47:28,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:47:28,343 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:47:28,344 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:47:28,344 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:47:28,345 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:47:28,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:47:28,345 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:47:28,345 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:47:28,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:47:28,346 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:47:28,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:47:28,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:47:28,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:47:28,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:47:28,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:47:28,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:47:28,348 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:47:28,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:47:28,348 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:47:28,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:47:28,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:47:28,348 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:47:28,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:47:28,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:47:28,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:47:28,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:47:28,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:47:28,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:47:28,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:47:28,351 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:47:28,351 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:47:28,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:47:28,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:47:28,352 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68e1c5cf050539b3ee8f058d38ff7af5aea2a400d05e41e0185e4509f45301e0 [2021-12-15 10:47:28,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:47:28,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:47:28,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:47:28,570 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:47:28,571 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:47:28,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-2.i [2021-12-15 10:47:28,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92a455a90/cbed9346d2e64f2bbb1261345f3adc0c/FLAGb10b5bcbc [2021-12-15 10:47:29,069 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:47:29,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-2.i [2021-12-15 10:47:29,100 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92a455a90/cbed9346d2e64f2bbb1261345f3adc0c/FLAGb10b5bcbc [2021-12-15 10:47:29,117 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92a455a90/cbed9346d2e64f2bbb1261345f3adc0c [2021-12-15 10:47:29,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:47:29,121 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:47:29,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:29,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:47:29,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:47:29,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@787512cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29, skipping insertion in model container [2021-12-15 10:47:29,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:47:29,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:47:29,480 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-ext3-properties/sll_of_sll_nondet_append-2.i[25013,25026] [2021-12-15 10:47:29,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:29,501 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:47:29,542 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-ext3-properties/sll_of_sll_nondet_append-2.i[25013,25026] [2021-12-15 10:47:29,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:29,567 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:47:29,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29 WrapperNode [2021-12-15 10:47:29,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:29,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:29,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:47:29,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:47:29,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,639 INFO L137 Inliner]: procedures = 129, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 180 [2021-12-15 10:47:29,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:29,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:47:29,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:47:29,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:47:29,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:47:29,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:47:29,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:47:29,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:47:29,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:47:29,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:47:29,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 10:47:29,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 10:47:29,748 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-12-15 10:47:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-12-15 10:47:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:47:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:47:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:47:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:47:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure sll_append [2021-12-15 10:47:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_append [2021-12-15 10:47:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:47:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:47:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 10:47:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:47:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:47:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:47:29,848 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:47:29,850 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:47:29,857 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:47:29,861 INFO L158 Benchmark]: Toolchain (without parser) took 739.10ms. Allocated memory is still 94.4MB. Free memory was 66.9MB in the beginning and 51.2MB in the end (delta: 15.7MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2021-12-15 10:47:29,861 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 77.6MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:47:29,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.82ms. Allocated memory is still 94.4MB. Free memory was 66.7MB in the beginning and 63.0MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 10:47:29,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.47ms. Allocated memory is still 94.4MB. Free memory was 63.0MB in the beginning and 60.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:29,863 INFO L158 Benchmark]: Boogie Preprocessor took 39.41ms. Allocated memory is still 94.4MB. Free memory was 60.4MB in the beginning and 58.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:29,864 INFO L158 Benchmark]: RCFGBuilder took 179.08ms. Allocated memory is still 94.4MB. Free memory was 58.6MB in the beginning and 51.2MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 10:47:29,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 77.6MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 445.82ms. Allocated memory is still 94.4MB. Free memory was 66.7MB in the beginning and 63.0MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.47ms. Allocated memory is still 94.4MB. Free memory was 63.0MB in the beginning and 60.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.41ms. Allocated memory is still 94.4MB. Free memory was 60.4MB in the beginning and 58.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 179.08ms. Allocated memory is still 94.4MB. Free memory was 58.6MB in the beginning and 51.2MB in the end (delta: 7.5MB). 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 10:47:29,895 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-ext3-properties/sll_of_sll_nondet_append-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 68e1c5cf050539b3ee8f058d38ff7af5aea2a400d05e41e0185e4509f45301e0 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:47:31,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:47:31,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:47:31,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:47:31,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:47:31,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:47:31,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:47:31,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:47:31,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:47:31,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:47:31,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:47:31,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:47:31,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:47:31,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:47:31,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:47:31,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:47:31,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:47:31,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:47:31,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:47:31,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:47:31,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:47:31,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:47:31,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:47:31,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:47:31,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:47:31,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:47:31,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:47:31,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:47:31,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:47:31,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:47:31,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:47:31,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:47:31,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:47:31,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:47:31,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:47:31,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:47:31,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:47:31,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:47:31,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:47:31,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:47:31,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:47:31,938 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:47:31,975 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:47:31,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:47:31,976 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:47:31,977 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:47:31,977 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:47:31,978 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:47:31,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:47:31,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:47:31,979 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:47:31,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:47:31,980 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:47:31,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:47:31,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:47:31,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:47:31,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:47:31,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:47:31,981 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:47:31,981 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:47:31,981 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:47:31,982 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:47:31,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:47:31,982 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:47:31,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:47:31,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:47:31,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:47:31,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:47:31,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:47:31,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:47:31,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:47:31,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:47:31,984 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:47:31,984 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:47:31,984 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:47:31,984 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:47:31,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:47:31,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:47:31,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:47:31,985 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68e1c5cf050539b3ee8f058d38ff7af5aea2a400d05e41e0185e4509f45301e0 [2021-12-15 10:47:32,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:47:32,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:47:32,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:47:32,326 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:47:32,327 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:47:32,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-2.i [2021-12-15 10:47:32,392 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b5156744/82da8aa31ad9469db92e6c9c4c9928fc/FLAG50594d387 [2021-12-15 10:47:32,868 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:47:32,883 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_of_sll_nondet_append-2.i [2021-12-15 10:47:32,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b5156744/82da8aa31ad9469db92e6c9c4c9928fc/FLAG50594d387 [2021-12-15 10:47:33,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b5156744/82da8aa31ad9469db92e6c9c4c9928fc [2021-12-15 10:47:33,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:47:33,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:47:33,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:33,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:47:33,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:47:33,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:33" (1/1) ... [2021-12-15 10:47:33,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@777f209f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:33, skipping insertion in model container [2021-12-15 10:47:33,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:33" (1/1) ... [2021-12-15 10:47:33,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:47:33,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:47:33,600 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-ext3-properties/sll_of_sll_nondet_append-2.i[25013,25026] [2021-12-15 10:47:33,608 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:33,619 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:47:33,654 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-ext3-properties/sll_of_sll_nondet_append-2.i[25013,25026] [2021-12-15 10:47:33,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:33,690 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:47:33,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:33 WrapperNode [2021-12-15 10:47:33,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:33,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:33,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:47:33,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:47:33,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:33" (1/1) ... [2021-12-15 10:47:33,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:33" (1/1) ... [2021-12-15 10:47:33,735 INFO L137 Inliner]: procedures = 130, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 174 [2021-12-15 10:47:33,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:33,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:47:33,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:47:33,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:47:33,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:33" (1/1) ... [2021-12-15 10:47:33,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:33" (1/1) ... [2021-12-15 10:47:33,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:33" (1/1) ... [2021-12-15 10:47:33,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:33" (1/1) ... [2021-12-15 10:47:33,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:33" (1/1) ... [2021-12-15 10:47:33,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:33" (1/1) ... [2021-12-15 10:47:33,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:33" (1/1) ... [2021-12-15 10:47:33,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:47:33,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:47:33,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:47:33,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:47:33,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:33" (1/1) ... [2021-12-15 10:47:33,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:47:33,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:47:33,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 10:47:33,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 10:47:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-12-15 10:47:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-12-15 10:47:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:47:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:47:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:47:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:47:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure sll_append [2021-12-15 10:47:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_append [2021-12-15 10:47:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:47:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:47:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 10:47:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:47:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:47:33,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:47:33,999 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:47:34,004 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:47:34,024 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:47:34,028 INFO L158 Benchmark]: Toolchain (without parser) took 809.75ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.9MB in the beginning and 43.7MB in the end (delta: -12.7MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2021-12-15 10:47:34,029 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory is still 37.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:47:34,030 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.18ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.7MB in the beginning and 42.1MB in the end (delta: -11.5MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-12-15 10:47:34,030 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.85ms. Allocated memory is still 67.1MB. Free memory was 41.9MB in the beginning and 39.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:34,031 INFO L158 Benchmark]: Boogie Preprocessor took 35.16ms. Allocated memory is still 67.1MB. Free memory was 39.5MB in the beginning and 37.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:34,032 INFO L158 Benchmark]: RCFGBuilder took 254.44ms. Allocated memory is still 67.1MB. Free memory was 37.4MB in the beginning and 43.7MB in the end (delta: -6.2MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2021-12-15 10:47:34,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory is still 37.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.18ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.7MB in the beginning and 42.1MB in the end (delta: -11.5MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.85ms. Allocated memory is still 67.1MB. Free memory was 41.9MB in the beginning and 39.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.16ms. Allocated memory is still 67.1MB. Free memory was 39.5MB in the beginning and 37.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 254.44ms. Allocated memory is still 67.1MB. Free memory was 37.4MB in the beginning and 43.7MB in the end (delta: -6.2MB). 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 10:47:34,076 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