./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/02_inc_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/02_inc_cas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ede09850ec25b369afc0cd16258beff942f9fc7c5304532be31fd5925a934e14 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:43:08,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:43:09,020 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:43:09,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:43:09,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:43:09,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:43:09,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:43:09,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:43:09,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:43:09,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:43:09,056 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:43:09,056 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:43:09,057 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:43:09,058 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:43:09,058 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:43:09,059 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:43:09,060 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:43:09,060 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:43:09,061 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:43:09,062 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:43:09,062 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:43:09,063 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:43:09,064 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:43:09,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:43:09,065 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:43:09,066 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:43:09,066 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:43:09,067 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:43:09,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:43:09,068 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:43:09,068 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:43:09,069 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:43:09,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:43:09,070 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:43:09,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:43:09,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:43:09,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:43:09,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:43:09,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:43:09,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:43:09,073 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:43:09,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:43:09,074 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:43:09,074 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:43:09,075 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:43:09,075 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ede09850ec25b369afc0cd16258beff942f9fc7c5304532be31fd5925a934e14 [2023-11-12 00:43:09,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:43:09,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:43:09,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:43:09,464 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:43:09,467 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:43:09,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-ext/02_inc_cas.i [2023-11-12 00:43:12,604 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:43:12,859 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:43:12,859 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/sv-benchmarks/c/pthread-ext/02_inc_cas.i [2023-11-12 00:43:12,876 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/data/33e7a412c/286164bc224c4d0db9d71e9c8dd1d8e8/FLAGb1c00ca86 [2023-11-12 00:43:12,890 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/data/33e7a412c/286164bc224c4d0db9d71e9c8dd1d8e8 [2023-11-12 00:43:12,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:43:12,905 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:43:12,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:43:12,908 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:43:12,913 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:43:12,914 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:12" (1/1) ... [2023-11-12 00:43:12,915 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674308f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:12, skipping insertion in model container [2023-11-12 00:43:12,916 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:12" (1/1) ... [2023-11-12 00:43:12,974 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:43:13,224 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:43:13,435 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/sv-benchmarks/c/pthread-ext/02_inc_cas.i[30873,30886] [2023-11-12 00:43:13,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:43:13,459 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:43:13,477 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:43:13,511 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/sv-benchmarks/c/pthread-ext/02_inc_cas.i[30873,30886] [2023-11-12 00:43:13,513 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:43:13,551 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:43:13,551 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:43:13,552 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:43:13,560 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:43:13,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:13 WrapperNode [2023-11-12 00:43:13,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:43:13,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:43:13,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:43:13,563 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:43:13,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:13" (1/1) ... [2023-11-12 00:43:13,606 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:13" (1/1) ... [2023-11-12 00:43:13,629 INFO L138 Inliner]: procedures = 171, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2023-11-12 00:43:13,630 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:43:13,630 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:43:13,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:43:13,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:43:13,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:13" (1/1) ... [2023-11-12 00:43:13,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:13" (1/1) ... [2023-11-12 00:43:13,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:13" (1/1) ... [2023-11-12 00:43:13,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:13" (1/1) ... [2023-11-12 00:43:13,650 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:13" (1/1) ... [2023-11-12 00:43:13,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:13" (1/1) ... [2023-11-12 00:43:13,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:13" (1/1) ... [2023-11-12 00:43:13,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:13" (1/1) ... [2023-11-12 00:43:13,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:43:13,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:43:13,661 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:43:13,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:43:13,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:13" (1/1) ... [2023-11-12 00:43:13,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:43:13,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:43:13,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:43:13,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:43:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:43:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-12 00:43:13,739 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-12 00:43:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:43:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:43:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:43:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:43:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:43:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:43:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:43:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:43:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:43:13,743 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:43:13,980 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:43:13,983 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:43:14,138 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:43:14,293 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:43:14,294 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:43:14,295 ERROR L336 CfgBuilder]: Unexpected successor node of atomic block begin: L718-2 is neither atomic block end nor a sink node. [2023-11-12 00:43:14,302 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:305) 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) [2023-11-12 00:43:14,306 INFO L158 Benchmark]: Toolchain (without parser) took 1400.86ms. Allocated memory is still 163.6MB. Free memory was 127.5MB in the beginning and 118.0MB in the end (delta: 9.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-12 00:43:14,307 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:43:14,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 654.92ms. Allocated memory is still 163.6MB. Free memory was 127.5MB in the beginning and 107.4MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 00:43:14,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.89ms. Allocated memory is still 163.6MB. Free memory was 107.4MB in the beginning and 105.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:43:14,309 INFO L158 Benchmark]: Boogie Preprocessor took 29.37ms. Allocated memory is still 163.6MB. Free memory was 105.4MB in the beginning and 103.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:43:14,309 INFO L158 Benchmark]: RCFGBuilder took 644.25ms. Allocated memory is still 163.6MB. Free memory was 103.9MB in the beginning and 118.0MB in the end (delta: -14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 00:43:14,312 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 654.92ms. Allocated memory is still 163.6MB. Free memory was 127.5MB in the beginning and 107.4MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.89ms. Allocated memory is still 163.6MB. Free memory was 107.4MB in the beginning and 105.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.37ms. Allocated memory is still 163.6MB. Free memory was 105.4MB in the beginning and 103.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 644.25ms. Allocated memory is still 163.6MB. Free memory was 103.9MB in the beginning and 118.0MB in the end (delta: -14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:305) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-12 00:43:14,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/02_inc_cas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ede09850ec25b369afc0cd16258beff942f9fc7c5304532be31fd5925a934e14 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:43:16,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:43:17,047 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:43:17,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:43:17,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:43:17,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:43:17,103 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:43:17,103 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:43:17,104 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:43:17,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:43:17,110 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:43:17,111 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:43:17,111 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:43:17,113 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:43:17,113 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:43:17,114 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:43:17,115 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:43:17,115 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:43:17,116 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:43:17,116 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:43:17,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:43:17,117 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:43:17,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:43:17,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:43:17,119 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:43:17,119 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:43:17,119 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:43:17,120 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:43:17,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:43:17,121 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:43:17,122 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:43:17,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:43:17,123 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:43:17,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:43:17,123 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:43:17,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:43:17,124 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:43:17,124 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:43:17,125 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:43:17,126 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:43:17,126 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:43:17,126 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:43:17,126 INFO L153 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ede09850ec25b369afc0cd16258beff942f9fc7c5304532be31fd5925a934e14 [2023-11-12 00:43:17,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:43:17,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:43:17,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:43:17,577 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:43:17,577 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:43:17,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-ext/02_inc_cas.i [2023-11-12 00:43:20,760 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:43:21,038 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:43:21,039 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/sv-benchmarks/c/pthread-ext/02_inc_cas.i [2023-11-12 00:43:21,056 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/data/24717735a/752b8996e3974fe8a3378a1ba4b7573d/FLAG98378f497 [2023-11-12 00:43:21,071 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/data/24717735a/752b8996e3974fe8a3378a1ba4b7573d [2023-11-12 00:43:21,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:43:21,076 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:43:21,078 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:43:21,078 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:43:21,086 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:43:21,087 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:21" (1/1) ... [2023-11-12 00:43:21,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef448bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:21, skipping insertion in model container [2023-11-12 00:43:21,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:21" (1/1) ... [2023-11-12 00:43:21,139 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:43:21,386 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:43:21,629 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/sv-benchmarks/c/pthread-ext/02_inc_cas.i[30873,30886] [2023-11-12 00:43:21,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:43:21,651 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:43:21,666 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:43:21,688 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/sv-benchmarks/c/pthread-ext/02_inc_cas.i[30873,30886] [2023-11-12 00:43:21,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:43:21,729 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:43:21,730 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:43:21,730 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:43:21,738 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:43:21,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:21 WrapperNode [2023-11-12 00:43:21,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:43:21,740 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:43:21,740 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:43:21,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:43:21,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:21" (1/1) ... [2023-11-12 00:43:21,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:21" (1/1) ... [2023-11-12 00:43:21,790 INFO L138 Inliner]: procedures = 175, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2023-11-12 00:43:21,791 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:43:21,791 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:43:21,792 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:43:21,792 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:43:21,801 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:21" (1/1) ... [2023-11-12 00:43:21,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:21" (1/1) ... [2023-11-12 00:43:21,805 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:21" (1/1) ... [2023-11-12 00:43:21,805 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:21" (1/1) ... [2023-11-12 00:43:21,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:21" (1/1) ... [2023-11-12 00:43:21,817 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:21" (1/1) ... [2023-11-12 00:43:21,820 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:21" (1/1) ... [2023-11-12 00:43:21,822 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:21" (1/1) ... [2023-11-12 00:43:21,827 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:43:21,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:43:21,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:43:21,828 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:43:21,829 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:21" (1/1) ... [2023-11-12 00:43:21,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:43:21,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:43:21,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:43:21,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:43:21,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:43:21,926 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-12 00:43:21,926 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-12 00:43:21,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:43:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:43:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:43:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:43:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:43:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:43:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-12 00:43:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:43:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:43:21,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:43:21,932 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:43:22,110 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:43:22,112 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:43:22,331 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:43:22,446 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:43:22,446 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:43:22,447 ERROR L336 CfgBuilder]: Unexpected successor node of atomic block begin: L718-2 is neither atomic block end nor a sink node. [2023-11-12 00:43:22,448 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:305) 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) [2023-11-12 00:43:22,455 INFO L158 Benchmark]: Toolchain (without parser) took 1377.48ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 43.5MB in the beginning and 64.2MB in the end (delta: -20.8MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2023-11-12 00:43:22,456 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 73.4MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:43:22,456 INFO L158 Benchmark]: CACSL2BoogieTranslator took 661.82ms. Allocated memory is still 73.4MB. Free memory was 43.3MB in the beginning and 41.9MB in the end (delta: 1.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-11-12 00:43:22,457 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.73ms. Allocated memory is still 73.4MB. Free memory was 41.9MB in the beginning and 39.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:43:22,459 INFO L158 Benchmark]: Boogie Preprocessor took 35.42ms. Allocated memory is still 73.4MB. Free memory was 39.7MB in the beginning and 37.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:43:22,460 INFO L158 Benchmark]: RCFGBuilder took 624.88ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 37.7MB in the beginning and 64.2MB in the end (delta: -26.5MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2023-11-12 00:43:22,469 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 73.4MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 661.82ms. Allocated memory is still 73.4MB. Free memory was 43.3MB in the beginning and 41.9MB in the end (delta: 1.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.73ms. Allocated memory is still 73.4MB. Free memory was 41.9MB in the beginning and 39.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.42ms. Allocated memory is still 73.4MB. Free memory was 39.7MB in the beginning and 37.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 624.88ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 37.7MB in the beginning and 64.2MB in the end (delta: -26.5MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:305) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-12 00:43:22,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d807fdf6-b7da-4f98-badd-612d6f9b2665/bin/utaipan-verify-NcY6lQBIFX/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: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?