./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/singleton.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/singleton.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:31:27,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:31:27,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:31:27,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:31:27,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:31:27,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:31:27,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:31:27,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:31:27,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:31:27,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:31:27,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:31:27,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:31:27,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:31:27,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:31:27,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:31:27,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:31:27,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:31:27,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:31:27,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:31:27,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:31:27,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:31:27,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:31:27,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:31:27,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:31:27,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:31:27,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:31:27,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:31:27,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:31:27,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:31:27,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:31:27,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:31:27,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:31:27,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:31:27,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:31:27,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:31:27,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:31:27,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:31:27,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:31:27,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:31:27,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:31:27,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:31:27,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 11:31:27,436 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:31:27,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:31:27,437 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:31:27,437 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:31:27,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:31:27,443 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:31:27,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:31:27,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:31:27,444 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:31:27,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:31:27,445 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:31:27,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:31:27,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:31:27,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:31:27,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:31:27,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:31:27,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:31:27,446 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:31:27,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:31:27,446 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:31:27,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:31:27,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:31:27,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:31:27,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:31:27,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:31:27,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:31:27,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:31:27,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:31:27,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:31:27,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:31:27,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:31:27,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:31:27,448 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:31:27,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:31:27,449 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:31:27,449 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f [2022-12-13 11:31:27,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:31:27,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:31:27,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:31:27,633 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:31:27,633 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:31:27,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread/singleton.i [2022-12-13 11:31:30,284 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:31:30,453 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:31:30,454 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/sv-benchmarks/c/pthread/singleton.i [2022-12-13 11:31:30,464 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8/data/4a08f8aa8/d8fc1ed8e35d404fa7364515186fcc3d/FLAG77a71650d [2022-12-13 11:31:30,476 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8/data/4a08f8aa8/d8fc1ed8e35d404fa7364515186fcc3d [2022-12-13 11:31:30,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:31:30,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:31:30,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:31:30,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:31:30,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:31:30,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:31:30" (1/1) ... [2022-12-13 11:31:30,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d83fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:31:30, skipping insertion in model container [2022-12-13 11:31:30,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:31:30" (1/1) ... [2022-12-13 11:31:30,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:31:30,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:31:30,655 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:31:30,838 WARN L237 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_6d096a5d-996e-4a35-87fd-153493b2d8f0/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-12-13 11:31:30,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:31:30,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:31:30,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:31:30,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:31:30,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:31:30,861 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:31:30,871 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:31:30,887 WARN L237 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_6d096a5d-996e-4a35-87fd-153493b2d8f0/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-12-13 11:31:30,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:31:30,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:31:30,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:31:30,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:31:30,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:31:30,933 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:31:30,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:31:30 WrapperNode [2022-12-13 11:31:30,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:31:30,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:31:30,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:31:30,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:31:30,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:31:30" (1/1) ... [2022-12-13 11:31:30,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:31:30" (1/1) ... [2022-12-13 11:31:30,965 INFO L138 Inliner]: procedures = 325, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-12-13 11:31:30,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:31:30,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:31:30,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:31:30,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:31:30,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:31:30" (1/1) ... [2022-12-13 11:31:30,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:31:30" (1/1) ... [2022-12-13 11:31:30,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:31:30" (1/1) ... [2022-12-13 11:31:30,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:31:30" (1/1) ... [2022-12-13 11:31:30,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:31:30" (1/1) ... [2022-12-13 11:31:30,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:31:30" (1/1) ... [2022-12-13 11:31:30,982 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:31:30" (1/1) ... [2022-12-13 11:31:30,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:31:30" (1/1) ... [2022-12-13 11:31:30,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:31:30,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:31:30,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:31:30,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:31:30,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:31:30" (1/1) ... [2022-12-13 11:31:30,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:31:31,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:31:31,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:31:31,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:31:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 11:31:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:31:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:31:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 11:31:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:31:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-12-13 11:31:31,041 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-12-13 11:31:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 11:31:31,041 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 11:31:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 11:31:31,041 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 11:31:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 11:31:31,042 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 11:31:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:31:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 11:31:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:31:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:31:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:31:31,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:31:31,043 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 11:31:31,138 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:31:31,140 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:31:31,301 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:31:31,308 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:31:31,308 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:31:31,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:31:31 BoogieIcfgContainer [2022-12-13 11:31:31,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:31:31,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:31:31,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:31:31,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:31:31,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:31:30" (1/3) ... [2022-12-13 11:31:31,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7240f818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:31:31, skipping insertion in model container [2022-12-13 11:31:31,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:31:30" (2/3) ... [2022-12-13 11:31:31,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7240f818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:31:31, skipping insertion in model container [2022-12-13 11:31:31,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:31:31" (3/3) ... [2022-12-13 11:31:31,318 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2022-12-13 11:31:31,326 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 11:31:31,337 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:31:31,337 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:31:31,337 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:31:31,459 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-12-13 11:31:31,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 194 transitions, 495 flow [2022-12-13 11:31:31,554 INFO L130 PetriNetUnfolder]: 6/131 cut-off events. [2022-12-13 11:31:31,554 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 11:31:31,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 131 events. 6/131 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2022-12-13 11:31:31,560 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 194 transitions, 495 flow [2022-12-13 11:31:31,564 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 120 transitions, 291 flow [2022-12-13 11:31:31,567 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:31:31,575 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 120 transitions, 291 flow [2022-12-13 11:31:31,577 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 120 transitions, 291 flow [2022-12-13 11:31:31,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 120 transitions, 291 flow [2022-12-13 11:31:31,605 INFO L130 PetriNetUnfolder]: 5/120 cut-off events. [2022-12-13 11:31:31,605 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 11:31:31,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 120 events. 5/120 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 45 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2022-12-13 11:31:31,607 INFO L119 LiptonReduction]: Number of co-enabled transitions 1344 [2022-12-13 11:31:33,707 INFO L134 LiptonReduction]: Checked pairs total: 3024 [2022-12-13 11:31:33,707 INFO L136 LiptonReduction]: Total number of compositions: 79 [2022-12-13 11:31:33,720 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:31:33,725 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6fcec9ff, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:31:33,725 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-13 11:31:33,735 INFO L130 PetriNetUnfolder]: 5/40 cut-off events. [2022-12-13 11:31:33,735 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 11:31:33,736 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:31:33,736 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:31:33,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2022-12-13 11:31:33,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:31:33,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1934736765, now seen corresponding path program 1 times [2022-12-13 11:31:33,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:31:33,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238994311] [2022-12-13 11:31:33,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:31:33,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:31:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:31:33,932 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:31:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:31:34,005 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:31:34,006 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:31:34,007 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2022-12-13 11:31:34,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 12 remaining) [2022-12-13 11:31:34,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 12 remaining) [2022-12-13 11:31:34,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2022-12-13 11:31:34,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2022-12-13 11:31:34,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 12 remaining) [2022-12-13 11:31:34,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2022-12-13 11:31:34,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-12-13 11:31:34,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2022-12-13 11:31:34,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2022-12-13 11:31:34,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2022-12-13 11:31:34,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-12-13 11:31:34,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:31:34,010 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 11:31:34,015 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 11:31:34,015 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:31:34,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:31:34 BasicIcfg [2022-12-13 11:31:34,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:31:34,065 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:31:34,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:31:34,065 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:31:34,065 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:31:31" (3/4) ... [2022-12-13 11:31:34,067 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 11:31:34,118 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:31:34,118 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:31:34,119 INFO L158 Benchmark]: Toolchain (without parser) took 3638.95ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 94.3MB in the beginning and 61.4MB in the end (delta: 32.8MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2022-12-13 11:31:34,119 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 132.1MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:31:34,120 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.95ms. Allocated memory is still 132.1MB. Free memory was 93.9MB in the beginning and 60.4MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 11:31:34,120 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.40ms. Allocated memory is still 132.1MB. Free memory was 60.4MB in the beginning and 58.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:31:34,121 INFO L158 Benchmark]: Boogie Preprocessor took 19.22ms. Allocated memory is still 132.1MB. Free memory was 58.3MB in the beginning and 56.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:31:34,121 INFO L158 Benchmark]: RCFGBuilder took 323.92ms. Allocated memory is still 132.1MB. Free memory was 56.6MB in the beginning and 98.9MB in the end (delta: -42.3MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-12-13 11:31:34,121 INFO L158 Benchmark]: TraceAbstraction took 2752.58ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 98.1MB in the beginning and 79.3MB in the end (delta: 18.8MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2022-12-13 11:31:34,122 INFO L158 Benchmark]: Witness Printer took 53.08ms. Allocated memory is still 159.4MB. Free memory was 79.3MB in the beginning and 61.4MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 11:31:34,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 132.1MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 452.95ms. Allocated memory is still 132.1MB. Free memory was 93.9MB in the beginning and 60.4MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.40ms. Allocated memory is still 132.1MB. Free memory was 60.4MB in the beginning and 58.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.22ms. Allocated memory is still 132.1MB. Free memory was 58.3MB in the beginning and 56.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 323.92ms. Allocated memory is still 132.1MB. Free memory was 56.6MB in the beginning and 98.9MB in the end (delta: -42.3MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2752.58ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 98.1MB in the beginning and 79.3MB in the end (delta: 18.8MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. * Witness Printer took 53.08ms. Allocated memory is still 159.4MB. Free memory was 79.3MB in the beginning and 61.4MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 134 PlacesBefore, 55 PlacesAfterwards, 120 TransitionsBefore, 41 TransitionsAfterwards, 1344 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 79 TotalNumberOfCompositions, 3024 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2203, independent: 2092, independent conditional: 0, independent unconditional: 2092, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 724, independent: 682, independent conditional: 0, independent unconditional: 682, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2203, independent: 1410, independent conditional: 0, independent unconditional: 1410, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 724, unknown conditional: 0, unknown unconditional: 724] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 49, Positive conditional cache size: 0, Positive unconditional cache size: 49, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1123]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1124] 0 char *v; [L1161] 0 pthread_t t; [L1162] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [arg={0:0}, pthread_create(&t, 0, thread0, 0)=-6, t={6:0}, v={0:0}] [L1146] 1 pthread_t t1, t2, t3, t4, t5; [L1147] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t1, 0, thread1, 0)=-5, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={0:0}] [L1127] 2 v = malloc(sizeof(char)) [L1128] 2 return 0; [L1148] 1 \read(t1) VAL [\read(t1)=-5, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={3:0}] [L1148] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\read(t1)=-5, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={3:0}] [L1149] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t2, 0, thread2, 0)=-4, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={3:0}] [L1150] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t3, 0, thread3, 0)=-3, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={3:0}] [L1151] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t4, 0, thread2, 0)=-2, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={3:0}] [L1152] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t5, 0, thread2, 0)=-1, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={3:0}] [L1133] 6 v[0] = 'X' [L1135] 6 return 0; [L1133] 5 v[0] = 'X' [L1135] 5 return 0; [L1153] 1 \read(t2) VAL [\read(t2)=-4, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={3:0}] [L1133] 3 v[0] = 'X' [L1135] 3 return 0; [L1153] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\read(t2)=-4, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={3:0}] [L1154] 1 \read(t3) VAL [\read(t3)=-3, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={3:0}] [L1140] 4 v[0] = 'Y' [L1142] 4 return 0; [L1154] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\read(t3)=-3, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={3:0}] [L1155] 1 \read(t4) VAL [\read(t4)=-2, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={3:0}] [L1155] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\read(t4)=-2, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={3:0}] [L1156] 1 \read(t5) VAL [\read(t5)=-1, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={3:0}] [L1156] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\read(t5)=-1, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={3:0}] [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1163] 0 \read(t) VAL [\read(t)=-6, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t={6:0}, v={3:0}] [L1163] FCALL, JOIN 1 pthread_join(t, 0) VAL [\read(t)=-6, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t={6:0}, v={3:0}] [L1164] EXPR 0 v[0] [L1164] CALL 0 __VERIFIER_assert(v[0] == 'X') [L1123] COND TRUE 0 !expression [L1123] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, v={3:0}] - UnprovableResult [Line: 1151]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1152]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1150]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1147]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1149]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1162]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1151]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1149]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1152]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1150]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1147]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 224 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 11:31:34,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d096a5d-996e-4a35-87fd-153493b2d8f0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE