./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix031.opt.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/pthread-wmm/mix031.opt.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 526111e98fa506d5405af18114114ae6aa9ce1a2e8442e7719052c05a249c119 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:23:07,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:23:07,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:23:07,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:23:07,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:23:07,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:23:07,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:23:07,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:23:07,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:23:07,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:23:07,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:23:07,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:23:07,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:23:07,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:23:07,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:23:07,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:23:07,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:23:07,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:23:07,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:23:07,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:23:07,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:23:07,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:23:07,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:23:07,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:23:07,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:23:07,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:23:07,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:23:07,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:23:07,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:23:07,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:23:07,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:23:07,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:23:07,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:23:07,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:23:07,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:23:07,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:23:07,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:23:07,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:23:07,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:23:07,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:23:07,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:23:07,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 12:23:07,552 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:23:07,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:23:07,553 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:23:07,553 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:23:07,554 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:23:07,554 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:23:07,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:23:07,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:23:07,555 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:23:07,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:23:07,556 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:23:07,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:23:07,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:23:07,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:23:07,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:23:07,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:23:07,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:23:07,557 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:23:07,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:23:07,557 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:23:07,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:23:07,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:23:07,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:23:07,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:23:07,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:23:07,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:23:07,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:23:07,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:23:07,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:23:07,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:23:07,560 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:23:07,560 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:23:07,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:23:07,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:23:07,561 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 526111e98fa506d5405af18114114ae6aa9ce1a2e8442e7719052c05a249c119 [2021-12-15 12:23:07,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:23:07,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:23:07,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:23:07,798 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:23:07,798 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:23:07,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix031.opt.i [2021-12-15 12:23:07,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e240551f/8469313d9cfd4fcf8b730d242921ecff/FLAGb121fc4a4 [2021-12-15 12:23:08,300 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:23:08,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix031.opt.i [2021-12-15 12:23:08,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e240551f/8469313d9cfd4fcf8b730d242921ecff/FLAGb121fc4a4 [2021-12-15 12:23:08,821 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e240551f/8469313d9cfd4fcf8b730d242921ecff [2021-12-15 12:23:08,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:23:08,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:23:08,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:23:08,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:23:08,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:23:08,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:23:08" (1/1) ... [2021-12-15 12:23:08,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da7b909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:08, skipping insertion in model container [2021-12-15 12:23:08,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:23:08" (1/1) ... [2021-12-15 12:23:08,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:23:08,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:23:09,006 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/pthread-wmm/mix031.opt.i[987,1000] [2021-12-15 12:23:09,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:23:09,163 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:23:09,173 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/pthread-wmm/mix031.opt.i[987,1000] [2021-12-15 12:23:09,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:23:09,226 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:23:09,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:09 WrapperNode [2021-12-15 12:23:09,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:23:09,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:23:09,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:23:09,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:23:09,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:09" (1/1) ... [2021-12-15 12:23:09,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:09" (1/1) ... [2021-12-15 12:23:09,283 INFO L137 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2021-12-15 12:23:09,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:23:09,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:23:09,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:23:09,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:23:09,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:09" (1/1) ... [2021-12-15 12:23:09,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:09" (1/1) ... [2021-12-15 12:23:09,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:09" (1/1) ... [2021-12-15 12:23:09,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:09" (1/1) ... [2021-12-15 12:23:09,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:09" (1/1) ... [2021-12-15 12:23:09,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:09" (1/1) ... [2021-12-15 12:23:09,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:09" (1/1) ... [2021-12-15 12:23:09,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:23:09,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:23:09,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:23:09,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:23:09,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:09" (1/1) ... [2021-12-15 12:23:09,347 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:23:09,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:23:09,368 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 12:23:09,383 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 12:23:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:23:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 12:23:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:23:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:23:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:23:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-12-15 12:23:09,410 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-12-15 12:23:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-12-15 12:23:09,410 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-12-15 12:23:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:23:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 12:23:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:23:09,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:23:09,413 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 12:23:09,556 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:23:09,572 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:23:09,880 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:23:09,939 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 12:23:09,948 INFO L158 Benchmark]: Toolchain (without parser) took 1122.78ms. Allocated memory is still 153.1MB. Free memory was 123.7MB in the beginning and 86.2MB in the end (delta: 37.5MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2021-12-15 12:23:09,948 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:23:09,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.81ms. Allocated memory is still 153.1MB. Free memory was 123.3MB in the beginning and 118.1MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 12:23:09,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.14ms. Allocated memory is still 153.1MB. Free memory was 118.1MB in the beginning and 115.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:23:09,950 INFO L158 Benchmark]: Boogie Preprocessor took 54.47ms. Allocated memory is still 153.1MB. Free memory was 115.6MB in the beginning and 113.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:23:09,951 INFO L158 Benchmark]: RCFGBuilder took 607.16ms. Allocated memory is still 153.1MB. Free memory was 113.5MB in the beginning and 86.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-15 12:23:09,953 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 83.9MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.81ms. Allocated memory is still 153.1MB. Free memory was 123.3MB in the beginning and 118.1MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.14ms. Allocated memory is still 153.1MB. Free memory was 118.1MB in the beginning and 115.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.47ms. Allocated memory is still 153.1MB. Free memory was 115.6MB in the beginning and 113.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 607.16ms. Allocated memory is still 153.1MB. Free memory was 113.5MB in the beginning and 86.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. 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.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 12:23:09,987 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/pthread-wmm/mix031.opt.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 526111e98fa506d5405af18114114ae6aa9ce1a2e8442e7719052c05a249c119 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:23:11,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:23:11,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:23:11,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:23:11,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:23:11,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:23:11,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:23:11,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:23:11,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:23:11,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:23:11,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:23:11,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:23:11,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:23:11,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:23:11,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:23:11,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:23:11,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:23:11,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:23:11,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:23:11,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:23:11,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:23:11,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:23:11,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:23:11,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:23:11,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:23:11,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:23:11,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:23:11,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:23:11,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:23:11,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:23:11,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:23:11,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:23:11,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:23:11,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:23:11,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:23:11,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:23:11,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:23:11,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:23:11,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:23:11,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:23:11,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:23:11,764 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 12:23:11,798 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:23:11,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:23:11,799 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:23:11,799 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:23:11,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:23:11,800 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:23:11,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:23:11,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:23:11,801 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:23:11,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:23:11,802 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:23:11,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:23:11,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:23:11,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:23:11,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:23:11,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:23:11,803 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:23:11,803 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:23:11,803 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:23:11,803 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:23:11,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:23:11,804 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:23:11,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:23:11,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:23:11,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:23:11,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:23:11,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:23:11,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:23:11,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:23:11,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:23:11,805 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:23:11,805 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:23:11,805 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:23:11,805 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:23:11,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:23:11,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:23:11,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:23:11,806 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 526111e98fa506d5405af18114114ae6aa9ce1a2e8442e7719052c05a249c119 [2021-12-15 12:23:12,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:23:12,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:23:12,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:23:12,091 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:23:12,092 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:23:12,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix031.opt.i [2021-12-15 12:23:12,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/031c988be/6c6e5dbda473414996fa5417f2f7d6ee/FLAGd4abfd8dc [2021-12-15 12:23:12,579 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:23:12,580 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix031.opt.i [2021-12-15 12:23:12,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/031c988be/6c6e5dbda473414996fa5417f2f7d6ee/FLAGd4abfd8dc [2021-12-15 12:23:12,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/031c988be/6c6e5dbda473414996fa5417f2f7d6ee [2021-12-15 12:23:12,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:23:12,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:23:12,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:23:12,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:23:12,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:23:12,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:23:12" (1/1) ... [2021-12-15 12:23:12,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f657f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:12, skipping insertion in model container [2021-12-15 12:23:12,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:23:12" (1/1) ... [2021-12-15 12:23:12,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:23:12,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:23:12,800 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/pthread-wmm/mix031.opt.i[987,1000] [2021-12-15 12:23:12,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:23:12,974 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:23:12,983 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/pthread-wmm/mix031.opt.i[987,1000] [2021-12-15 12:23:13,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:23:13,068 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:23:13,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:13 WrapperNode [2021-12-15 12:23:13,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:23:13,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:23:13,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:23:13,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:23:13,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:13" (1/1) ... [2021-12-15 12:23:13,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:13" (1/1) ... [2021-12-15 12:23:13,135 INFO L137 Inliner]: procedures = 178, calls = 49, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 172 [2021-12-15 12:23:13,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:23:13,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:23:13,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:23:13,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:23:13,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:13" (1/1) ... [2021-12-15 12:23:13,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:13" (1/1) ... [2021-12-15 12:23:13,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:13" (1/1) ... [2021-12-15 12:23:13,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:13" (1/1) ... [2021-12-15 12:23:13,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:13" (1/1) ... [2021-12-15 12:23:13,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:13" (1/1) ... [2021-12-15 12:23:13,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:13" (1/1) ... [2021-12-15 12:23:13,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:23:13,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:23:13,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:23:13,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:23:13,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:23:13" (1/1) ... [2021-12-15 12:23:13,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:23:13,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:23:13,253 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 12:23:13,267 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 12:23:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 12:23:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:23:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:23:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:23:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 12:23:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:23:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-12-15 12:23:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-12-15 12:23:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-12-15 12:23:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-12-15 12:23:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 12:23:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:23:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:23:13,290 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 12:23:13,460 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:23:13,461 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:23:13,828 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:23:13,883 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 12:23:13,888 INFO L158 Benchmark]: Toolchain (without parser) took 1283.62ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 36.1MB in the beginning and 46.4MB in the end (delta: -10.3MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2021-12-15 12:23:13,889 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory was 40.8MB in the beginning and 40.7MB in the end (delta: 47.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:23:13,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.55ms. Allocated memory is still 58.7MB. Free memory was 36.0MB in the beginning and 29.1MB in the end (delta: 6.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 12:23:13,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.91ms. Allocated memory is still 58.7MB. Free memory was 29.1MB in the beginning and 26.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:23:13,891 INFO L158 Benchmark]: Boogie Preprocessor took 80.10ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 26.6MB in the beginning and 52.3MB in the end (delta: -25.8MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2021-12-15 12:23:13,891 INFO L158 Benchmark]: RCFGBuilder took 668.94ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 46.4MB in the end (delta: 5.6MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2021-12-15 12:23:13,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory was 40.8MB in the beginning and 40.7MB in the end (delta: 47.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 463.55ms. Allocated memory is still 58.7MB. Free memory was 36.0MB in the beginning and 29.1MB in the end (delta: 6.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.91ms. Allocated memory is still 58.7MB. Free memory was 29.1MB in the beginning and 26.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.10ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 26.6MB in the beginning and 52.3MB in the end (delta: -25.8MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * RCFGBuilder took 668.94ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 46.4MB in the end (delta: 5.6MB). Peak memory consumption was 23.3MB. 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.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 12:23:13,938 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