./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 546 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 546 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-18 00:25:42,169 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-18 00:25:42,230 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-18 00:25:42,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-18 00:25:42,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-18 00:25:42,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-18 00:25:42,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-18 00:25:42,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-18 00:25:42,269 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-18 00:25:42,270 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-18 00:25:42,270 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-18 00:25:42,271 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-18 00:25:42,271 INFO L153 SettingsManager]: * Use SBE=true [2024-10-18 00:25:42,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-18 00:25:42,272 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-18 00:25:42,272 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-18 00:25:42,272 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-18 00:25:42,273 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-18 00:25:42,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-18 00:25:42,273 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-18 00:25:42,274 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-18 00:25:42,274 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-18 00:25:42,275 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-18 00:25:42,275 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-18 00:25:42,275 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-18 00:25:42,276 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-18 00:25:42,276 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-18 00:25:42,276 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-18 00:25:42,277 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-18 00:25:42,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-18 00:25:42,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 00:25:42,278 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-18 00:25:42,278 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-18 00:25:42,278 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-18 00:25:42,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-18 00:25:42,279 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-18 00:25:42,279 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-18 00:25:42,280 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-18 00:25:42,280 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-18 00:25:42,280 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-18 00:25:42,281 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-18 00:25:42,281 INFO L153 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/UGemCutter-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/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> GemCutter 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 -> 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Seed for random criterion -> 546 [2024-10-18 00:25:42,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-18 00:25:42,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-18 00:25:42,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-18 00:25:42,569 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-18 00:25:42,569 INFO L274 PluginConnector]: CDTParser initialized [2024-10-18 00:25:42,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2024-10-18 00:25:44,221 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-18 00:25:44,519 INFO L384 CDTParser]: Found 1 translation units. [2024-10-18 00:25:44,521 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2024-10-18 00:25:44,540 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b1527bb78/e39621e6c96c49fa902a749d1c706d46/FLAG00bac8d65 [2024-10-18 00:25:44,808 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b1527bb78/e39621e6c96c49fa902a749d1c706d46 [2024-10-18 00:25:44,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-18 00:25:44,812 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-18 00:25:44,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-18 00:25:44,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-18 00:25:44,819 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-18 00:25:44,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 12:25:44" (1/1) ... [2024-10-18 00:25:44,821 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@398626ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:44, skipping insertion in model container [2024-10-18 00:25:44,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 12:25:44" (1/1) ... [2024-10-18 00:25:44,864 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-18 00:25:45,265 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2024-10-18 00:25:45,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 00:25:45,287 INFO L200 MainTranslator]: Completed pre-run [2024-10-18 00:25:45,339 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2024-10-18 00:25:45,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 00:25:45,381 INFO L204 MainTranslator]: Completed translation [2024-10-18 00:25:45,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:45 WrapperNode [2024-10-18 00:25:45,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-18 00:25:45,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-18 00:25:45,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-18 00:25:45,385 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-18 00:25:45,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:45" (1/1) ... [2024-10-18 00:25:45,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:45" (1/1) ... [2024-10-18 00:25:45,444 INFO L138 Inliner]: procedures = 172, calls = 19, calls flagged for inlining = 5, calls inlined = 7, statements flattened = 102 [2024-10-18 00:25:45,444 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-18 00:25:45,445 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-18 00:25:45,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-18 00:25:45,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-18 00:25:45,452 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:45" (1/1) ... [2024-10-18 00:25:45,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:45" (1/1) ... [2024-10-18 00:25:45,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:45" (1/1) ... [2024-10-18 00:25:45,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:45" (1/1) ... [2024-10-18 00:25:45,465 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:45" (1/1) ... [2024-10-18 00:25:45,472 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:45" (1/1) ... [2024-10-18 00:25:45,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:45" (1/1) ... [2024-10-18 00:25:45,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:45" (1/1) ... [2024-10-18 00:25:45,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-18 00:25:45,485 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-18 00:25:45,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-18 00:25:45,488 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-18 00:25:45,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:45" (1/1) ... [2024-10-18 00:25:45,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 00:25:45,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 00:25:45,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-18 00:25:45,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-18 00:25:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-18 00:25:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-18 00:25:45,586 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-18 00:25:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-18 00:25:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-18 00:25:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-18 00:25:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-18 00:25:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-18 00:25:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-18 00:25:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-18 00:25:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-18 00:25:45,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-18 00:25:45,590 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-18 00:25:45,730 INFO L238 CfgBuilder]: Building ICFG [2024-10-18 00:25:45,732 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-18 00:25:45,873 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-18 00:25:45,874 INFO L287 CfgBuilder]: Performing block encoding [2024-10-18 00:25:45,992 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionIsComplete(AtomicBlockAnalyzer.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:301) 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:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) 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) [2024-10-18 00:25:45,997 INFO L158 Benchmark]: Toolchain (without parser) took 1183.85ms. Allocated memory is still 184.5MB. Free memory was 115.1MB in the beginning and 116.8MB in the end (delta: -1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-18 00:25:45,997 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 143.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-18 00:25:45,998 INFO L158 Benchmark]: CACSL2BoogieTranslator took 569.39ms. Allocated memory is still 184.5MB. Free memory was 114.9MB in the beginning and 147.1MB in the end (delta: -32.1MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2024-10-18 00:25:45,998 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.60ms. Allocated memory is still 184.5MB. Free memory was 147.1MB in the beginning and 144.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-18 00:25:45,999 INFO L158 Benchmark]: Boogie Preprocessor took 38.84ms. Allocated memory is still 184.5MB. Free memory was 144.8MB in the beginning and 142.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-18 00:25:45,999 INFO L158 Benchmark]: RCFGBuilder took 510.67ms. Allocated memory is still 184.5MB. Free memory was 142.9MB in the beginning and 116.8MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-18 00:25:46,001 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 143.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 569.39ms. Allocated memory is still 184.5MB. Free memory was 114.9MB in the beginning and 147.1MB in the end (delta: -32.1MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.60ms. Allocated memory is still 184.5MB. Free memory was 147.1MB in the beginning and 144.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.84ms. Allocated memory is still 184.5MB. Free memory was 144.8MB in the beginning and 142.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 510.67ms. Allocated memory is still 184.5MB. Free memory was 142.9MB in the beginning and 116.8MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java:146) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-18 00:25:46,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 546 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-18 00:25:48,686 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-18 00:25:48,774 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-10-18 00:25:48,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-18 00:25:48,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-18 00:25:48,816 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-18 00:25:48,817 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-18 00:25:48,818 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-18 00:25:48,821 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-18 00:25:48,821 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-18 00:25:48,822 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-18 00:25:48,822 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-18 00:25:48,822 INFO L153 SettingsManager]: * Use SBE=true [2024-10-18 00:25:48,823 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-18 00:25:48,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-18 00:25:48,825 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-18 00:25:48,825 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-18 00:25:48,826 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-18 00:25:48,826 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-18 00:25:48,826 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-18 00:25:48,826 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-18 00:25:48,829 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-18 00:25:48,829 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-18 00:25:48,829 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-18 00:25:48,830 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-18 00:25:48,830 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-18 00:25:48,830 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-18 00:25:48,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-18 00:25:48,831 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-18 00:25:48,831 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-18 00:25:48,831 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-18 00:25:48,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 00:25:48,832 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-18 00:25:48,832 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-18 00:25:48,840 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-18 00:25:48,841 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-18 00:25:48,842 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-18 00:25:48,842 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-18 00:25:48,842 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-18 00:25:48,842 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-18 00:25:48,843 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-18 00:25:48,844 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-18 00:25:48,844 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-18 00:25:48,844 INFO L153 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/UGemCutter-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/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> GemCutter 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 -> 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Seed for random criterion -> 546 [2024-10-18 00:25:49,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-18 00:25:49,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-18 00:25:49,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-18 00:25:49,233 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-18 00:25:49,233 INFO L274 PluginConnector]: CDTParser initialized [2024-10-18 00:25:49,235 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2024-10-18 00:25:51,085 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-18 00:25:51,383 INFO L384 CDTParser]: Found 1 translation units. [2024-10-18 00:25:51,385 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2024-10-18 00:25:51,402 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/fbcdc359a/51582d6315304ae4b3ae764c68c90631/FLAG512dcc3ae [2024-10-18 00:25:51,419 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/fbcdc359a/51582d6315304ae4b3ae764c68c90631 [2024-10-18 00:25:51,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-18 00:25:51,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-18 00:25:51,429 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-18 00:25:51,429 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-18 00:25:51,434 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-18 00:25:51,434 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 12:25:51" (1/1) ... [2024-10-18 00:25:51,437 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@143b9bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:51, skipping insertion in model container [2024-10-18 00:25:51,437 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 12:25:51" (1/1) ... [2024-10-18 00:25:51,485 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-18 00:25:51,867 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2024-10-18 00:25:51,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 00:25:51,889 INFO L200 MainTranslator]: Completed pre-run [2024-10-18 00:25:51,928 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2024-10-18 00:25:51,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 00:25:51,965 INFO L204 MainTranslator]: Completed translation [2024-10-18 00:25:51,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:51 WrapperNode [2024-10-18 00:25:51,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-18 00:25:51,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-18 00:25:51,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-18 00:25:51,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-18 00:25:51,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:51" (1/1) ... [2024-10-18 00:25:51,990 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:51" (1/1) ... [2024-10-18 00:25:52,013 INFO L138 Inliner]: procedures = 175, calls = 19, calls flagged for inlining = 5, calls inlined = 7, statements flattened = 102 [2024-10-18 00:25:52,014 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-18 00:25:52,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-18 00:25:52,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-18 00:25:52,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-18 00:25:52,024 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:51" (1/1) ... [2024-10-18 00:25:52,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:51" (1/1) ... [2024-10-18 00:25:52,032 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:51" (1/1) ... [2024-10-18 00:25:52,032 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:51" (1/1) ... [2024-10-18 00:25:52,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:51" (1/1) ... [2024-10-18 00:25:52,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:51" (1/1) ... [2024-10-18 00:25:52,070 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:51" (1/1) ... [2024-10-18 00:25:52,076 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:51" (1/1) ... [2024-10-18 00:25:52,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-18 00:25:52,084 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-18 00:25:52,087 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-18 00:25:52,087 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-18 00:25:52,088 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 12:25:51" (1/1) ... [2024-10-18 00:25:52,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 00:25:52,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 00:25:52,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-18 00:25:52,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-18 00:25:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-10-18 00:25:52,188 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-18 00:25:52,188 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-18 00:25:52,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-18 00:25:52,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-18 00:25:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-18 00:25:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-18 00:25:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-10-18 00:25:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-18 00:25:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-18 00:25:52,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-18 00:25:52,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-18 00:25:52,191 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-18 00:25:52,381 INFO L238 CfgBuilder]: Building ICFG [2024-10-18 00:25:52,383 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-18 00:25:52,616 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-18 00:25:52,620 INFO L287 CfgBuilder]: Performing block encoding [2024-10-18 00:25:52,836 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionIsComplete(AtomicBlockAnalyzer.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:301) 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:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) 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) [2024-10-18 00:25:52,844 INFO L158 Benchmark]: Toolchain (without parser) took 1417.33ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 34.6MB in the beginning and 66.9MB in the end (delta: -32.3MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-10-18 00:25:52,844 INFO L158 Benchmark]: CDTParser took 1.22ms. Allocated memory is still 71.3MB. Free memory was 46.2MB in the beginning and 46.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-18 00:25:52,845 INFO L158 Benchmark]: CACSL2BoogieTranslator took 538.15ms. Allocated memory is still 71.3MB. Free memory was 34.4MB in the beginning and 33.0MB in the end (delta: 1.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-10-18 00:25:52,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.45ms. Allocated memory is still 71.3MB. Free memory was 33.0MB in the beginning and 30.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-18 00:25:52,846 INFO L158 Benchmark]: Boogie Preprocessor took 68.66ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 30.8MB in the beginning and 73.6MB in the end (delta: -42.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-18 00:25:52,847 INFO L158 Benchmark]: RCFGBuilder took 757.89ms. Allocated memory is still 94.4MB. Free memory was 73.6MB in the beginning and 67.4MB in the end (delta: 6.1MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2024-10-18 00:25:52,850 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22ms. Allocated memory is still 71.3MB. Free memory was 46.2MB in the beginning and 46.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 538.15ms. Allocated memory is still 71.3MB. Free memory was 34.4MB in the beginning and 33.0MB in the end (delta: 1.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.45ms. Allocated memory is still 71.3MB. Free memory was 33.0MB in the beginning and 30.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.66ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 30.8MB in the beginning and 73.6MB in the end (delta: -42.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 757.89ms. Allocated memory is still 94.4MB. Free memory was 73.6MB in the beginning and 67.4MB in the end (delta: 6.1MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java:146) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-18 00:25:52,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block?