./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-figure3.wvr.c --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/weaver/popl20-figure3.wvr.c -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 8978d351a1e877bd44e157215d417b40c01c7c886849af3efe046b60ddaacc95 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:28:53,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:28:53,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:28:53,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:28:53,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:28:53,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:28:53,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:28:53,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:28:53,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:28:53,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:28:53,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:28:53,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:28:53,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:28:53,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:28:53,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:28:53,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:28:53,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:28:53,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:28:53,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:28:53,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:28:53,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:28:53,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:28:53,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:28:53,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:28:53,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:28:53,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:28:53,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:28:53,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:28:53,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:28:53,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:28:53,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:28:53,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:28:53,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:28:53,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:28:53,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:28:53,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:28:53,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:28:53,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:28:53,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:28:53,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:28:53,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:28:53,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 12:28:53,945 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:28:53,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:28:53,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:28:53,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:28:53,947 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:28:53,948 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:28:53,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:28:53,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:28:53,948 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:28:53,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:28:53,949 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:28:53,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:28:53,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:28:53,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:28:53,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:28:53,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:28:53,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:28:53,950 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:28:53,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:28:53,951 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:28:53,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:28:53,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:28:53,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:28:53,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:28:53,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:28:53,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:28:53,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:28:53,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:28:53,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:28:53,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:28:53,952 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:28:53,952 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:28:53,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:28:53,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:28:53,953 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8978d351a1e877bd44e157215d417b40c01c7c886849af3efe046b60ddaacc95 [2021-12-15 12:28:54,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:28:54,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:28:54,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:28:54,162 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:28:54,163 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:28:54,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-figure3.wvr.c [2021-12-15 12:28:54,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5462f67a1/999891437e924c0fa6452c48f18b2823/FLAGe04ca668c [2021-12-15 12:28:54,578 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:28:54,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-figure3.wvr.c [2021-12-15 12:28:54,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5462f67a1/999891437e924c0fa6452c48f18b2823/FLAGe04ca668c [2021-12-15 12:28:54,966 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5462f67a1/999891437e924c0fa6452c48f18b2823 [2021-12-15 12:28:54,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:28:54,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:28:54,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:28:54,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:28:54,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:28:54,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:28:54" (1/1) ... [2021-12-15 12:28:54,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1426ec3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:54, skipping insertion in model container [2021-12-15 12:28:54,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:28:54" (1/1) ... [2021-12-15 12:28:54,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:28:54,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:28:55,101 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/weaver/popl20-figure3.wvr.c[2121,2134] [2021-12-15 12:28:55,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:28:55,110 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:28:55,133 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/weaver/popl20-figure3.wvr.c[2121,2134] [2021-12-15 12:28:55,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:28:55,148 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:28:55,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:55 WrapperNode [2021-12-15 12:28:55,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:28:55,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:28:55,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:28:55,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:28:55,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:55" (1/1) ... [2021-12-15 12:28:55,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:55" (1/1) ... [2021-12-15 12:28:55,178 INFO L137 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2021-12-15 12:28:55,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:28:55,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:28:55,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:28:55,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:28:55,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:55" (1/1) ... [2021-12-15 12:28:55,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:55" (1/1) ... [2021-12-15 12:28:55,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:55" (1/1) ... [2021-12-15 12:28:55,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:55" (1/1) ... [2021-12-15 12:28:55,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:55" (1/1) ... [2021-12-15 12:28:55,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:55" (1/1) ... [2021-12-15 12:28:55,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:55" (1/1) ... [2021-12-15 12:28:55,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:28:55,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:28:55,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:28:55,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:28:55,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:55" (1/1) ... [2021-12-15 12:28:55,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:28:55,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:28:55,246 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 12:28:55,252 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 12:28:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:28:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-15 12:28:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-15 12:28:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-15 12:28:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-15 12:28:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:28:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:28:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:28:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 12:28:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 12:28:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:28:55,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:28:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 12:28:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:28:55,280 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-15 12:28:55,346 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:28:55,348 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:28:55,549 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:28:55,569 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.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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 12:28:55,572 INFO L158 Benchmark]: Toolchain (without parser) took 603.26ms. Allocated memory is still 88.1MB. Free memory was 63.0MB in the beginning and 62.4MB in the end (delta: 522.7kB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2021-12-15 12:28:55,573 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory was 50.6MB in the beginning and 50.5MB in the end (delta: 42.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:28:55,575 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.56ms. Allocated memory is still 88.1MB. Free memory was 62.8MB in the beginning and 52.5MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 12:28:55,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.50ms. Allocated memory is still 88.1MB. Free memory was 52.5MB in the beginning and 50.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:28:55,576 INFO L158 Benchmark]: Boogie Preprocessor took 33.60ms. Allocated memory is still 88.1MB. Free memory was 50.8MB in the beginning and 49.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:28:55,576 INFO L158 Benchmark]: RCFGBuilder took 357.70ms. Allocated memory is still 88.1MB. Free memory was 49.6MB in the beginning and 62.4MB in the end (delta: -12.9MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2021-12-15 12:28:55,578 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory was 50.6MB in the beginning and 50.5MB in the end (delta: 42.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.56ms. Allocated memory is still 88.1MB. Free memory was 62.8MB in the beginning and 52.5MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.50ms. Allocated memory is still 88.1MB. Free memory was 52.5MB in the beginning and 50.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.60ms. Allocated memory is still 88.1MB. Free memory was 50.8MB in the beginning and 49.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 357.70ms. Allocated memory is still 88.1MB. Free memory was 49.6MB in the beginning and 62.4MB in the end (delta: -12.9MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 12:28:55,611 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/weaver/popl20-figure3.wvr.c -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 8978d351a1e877bd44e157215d417b40c01c7c886849af3efe046b60ddaacc95 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:28:57,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:28:57,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:28:57,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:28:57,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:28:57,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:28:57,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:28:57,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:28:57,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:28:57,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:28:57,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:28:57,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:28:57,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:28:57,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:28:57,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:28:57,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:28:57,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:28:57,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:28:57,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:28:57,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:28:57,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:28:57,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:28:57,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:28:57,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:28:57,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:28:57,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:28:57,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:28:57,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:28:57,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:28:57,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:28:57,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:28:57,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:28:57,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:28:57,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:28:57,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:28:57,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:28:57,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:28:57,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:28:57,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:28:57,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:28:57,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:28:57,340 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 12:28:57,374 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:28:57,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:28:57,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:28:57,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:28:57,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:28:57,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:28:57,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:28:57,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:28:57,377 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:28:57,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:28:57,378 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:28:57,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:28:57,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:28:57,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:28:57,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:28:57,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:28:57,379 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:28:57,379 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:28:57,379 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:28:57,379 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:28:57,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:28:57,380 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:28:57,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:28:57,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:28:57,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:28:57,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:28:57,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:28:57,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:28:57,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:28:57,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:28:57,381 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:28:57,381 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:28:57,381 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:28:57,382 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:28:57,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:28:57,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:28:57,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:28:57,382 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8978d351a1e877bd44e157215d417b40c01c7c886849af3efe046b60ddaacc95 [2021-12-15 12:28:57,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:28:57,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:28:57,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:28:57,778 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:28:57,779 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:28:57,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-figure3.wvr.c [2021-12-15 12:28:57,824 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f96c38cc/e9326997f37f42e0b176ecfd3932b2b7/FLAGa04bc3c9a [2021-12-15 12:28:58,211 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:28:58,212 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-figure3.wvr.c [2021-12-15 12:28:58,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f96c38cc/e9326997f37f42e0b176ecfd3932b2b7/FLAGa04bc3c9a [2021-12-15 12:28:58,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f96c38cc/e9326997f37f42e0b176ecfd3932b2b7 [2021-12-15 12:28:58,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:28:58,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:28:58,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:28:58,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:28:58,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:28:58,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:28:58" (1/1) ... [2021-12-15 12:28:58,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c6de082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:58, skipping insertion in model container [2021-12-15 12:28:58,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:28:58" (1/1) ... [2021-12-15 12:28:58,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:28:58,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:28:58,435 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/weaver/popl20-figure3.wvr.c[2121,2134] [2021-12-15 12:28:58,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:28:58,445 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:28:58,514 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/weaver/popl20-figure3.wvr.c[2121,2134] [2021-12-15 12:28:58,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:28:58,527 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:28:58,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:58 WrapperNode [2021-12-15 12:28:58,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:28:58,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:28:58,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:28:58,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:28:58,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:58" (1/1) ... [2021-12-15 12:28:58,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:58" (1/1) ... [2021-12-15 12:28:58,559 INFO L137 Inliner]: procedures = 23, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2021-12-15 12:28:58,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:28:58,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:28:58,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:28:58,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:28:58,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:58" (1/1) ... [2021-12-15 12:28:58,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:58" (1/1) ... [2021-12-15 12:28:58,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:58" (1/1) ... [2021-12-15 12:28:58,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:58" (1/1) ... [2021-12-15 12:28:58,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:58" (1/1) ... [2021-12-15 12:28:58,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:58" (1/1) ... [2021-12-15 12:28:58,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:58" (1/1) ... [2021-12-15 12:28:58,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:28:58,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:28:58,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:28:58,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:28:58,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:28:58" (1/1) ... [2021-12-15 12:28:58,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:28:58,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:28:58,621 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 12:28:58,643 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 12:28:58,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:28:58,651 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-15 12:28:58,651 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-15 12:28:58,651 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-15 12:28:58,651 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-15 12:28:58,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:28:58,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:28:58,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 12:28:58,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 12:28:58,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 12:28:58,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:28:58,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:28:58,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:28:58,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 12:28:58,654 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-15 12:28:58,735 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:28:58,736 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:28:58,887 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:28:58,913 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.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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 12:28:58,917 INFO L158 Benchmark]: Toolchain (without parser) took 682.58ms. Allocated memory is still 71.3MB. Free memory was 53.3MB in the beginning and 38.6MB in the end (delta: 14.7MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2021-12-15 12:28:58,918 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:28:58,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.24ms. Allocated memory is still 71.3MB. Free memory was 53.1MB in the beginning and 53.0MB in the end (delta: 130.1kB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2021-12-15 12:28:58,919 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.00ms. Allocated memory is still 71.3MB. Free memory was 53.0MB in the beginning and 51.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:28:58,919 INFO L158 Benchmark]: Boogie Preprocessor took 36.69ms. Allocated memory is still 71.3MB. Free memory was 51.4MB in the beginning and 50.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:28:58,920 INFO L158 Benchmark]: RCFGBuilder took 318.30ms. Allocated memory is still 71.3MB. Free memory was 49.9MB in the beginning and 38.6MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 12:28:58,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.24ms. Allocated memory is still 71.3MB. Free memory was 53.1MB in the beginning and 53.0MB in the end (delta: 130.1kB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.00ms. Allocated memory is still 71.3MB. Free memory was 53.0MB in the beginning and 51.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.69ms. Allocated memory is still 71.3MB. Free memory was 51.4MB in the beginning and 50.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 318.30ms. Allocated memory is still 71.3MB. Free memory was 49.9MB in the beginning and 38.6MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 12:28:58,953 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