./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-pthread.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-pthread.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 801883caffd8b582a36607f9ec62109ac5c5dc10c811693a281fb396b4b60131 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 17:17:48,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 17:17:48,808 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2023-11-21 17:17:48,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 17:17:48,815 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 17:17:48,841 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 17:17:48,843 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 17:17:48,844 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 17:17:48,845 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 17:17:48,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 17:17:48,850 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 17:17:48,851 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 17:17:48,851 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 17:17:48,853 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 17:17:48,853 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 17:17:48,854 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 17:17:48,854 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 17:17:48,855 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 17:17:48,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 17:17:48,855 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 17:17:48,856 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 17:17:48,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 17:17:48,857 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 17:17:48,857 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 17:17:48,858 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 17:17:48,858 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 17:17:48,858 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 17:17:48,859 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 17:17:48,859 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 17:17:48,860 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 17:17:48,860 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 17:17:48,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 17:17:48,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 17:17:48,861 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 17:17:48,861 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 17:17:48,862 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 17:17:48,862 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-21 17:17:48,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 17:17:48,862 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 17:17:48,863 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-21 17:17:48,863 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-21 17:17:48,863 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 17:17:48,864 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-21 17:17:48,864 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-21 17:17:48,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 801883caffd8b582a36607f9ec62109ac5c5dc10c811693a281fb396b4b60131 [2023-11-21 17:17:49,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 17:17:49,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 17:17:49,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 17:17:49,259 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 17:17:49,260 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 17:17:49,262 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-pthread.i [2023-11-21 17:17:52,400 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 17:17:52,644 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 17:17:52,645 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-pthread.i [2023-11-21 17:17:52,664 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/data/ecd557603/e4d6c32a48f6400eb928b94ebfd61b3a/FLAGd7267c5bc [2023-11-21 17:17:52,679 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/data/ecd557603/e4d6c32a48f6400eb928b94ebfd61b3a [2023-11-21 17:17:52,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 17:17:52,683 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 17:17:52,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 17:17:52,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 17:17:52,701 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 17:17:52,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:17:52" (1/1) ... [2023-11-21 17:17:52,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@450a1803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:52, skipping insertion in model container [2023-11-21 17:17:52,705 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:17:52" (1/1) ... [2023-11-21 17:17:52,756 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 17:17:53,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 17:17:53,145 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 17:17:53,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 17:17:53,267 INFO L206 MainTranslator]: Completed translation [2023-11-21 17:17:53,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:53 WrapperNode [2023-11-21 17:17:53,267 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 17:17:53,268 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 17:17:53,269 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 17:17:53,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 17:17:53,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:53" (1/1) ... [2023-11-21 17:17:53,293 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:53" (1/1) ... [2023-11-21 17:17:53,317 INFO L138 Inliner]: procedures = 165, calls = 21, calls flagged for inlining = 4, calls inlined = 5, statements flattened = 75 [2023-11-21 17:17:53,317 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 17:17:53,318 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 17:17:53,318 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 17:17:53,318 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 17:17:53,327 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:53" (1/1) ... [2023-11-21 17:17:53,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:53" (1/1) ... [2023-11-21 17:17:53,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:53" (1/1) ... [2023-11-21 17:17:53,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:53" (1/1) ... [2023-11-21 17:17:53,337 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:53" (1/1) ... [2023-11-21 17:17:53,341 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:53" (1/1) ... [2023-11-21 17:17:53,343 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:53" (1/1) ... [2023-11-21 17:17:53,344 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:53" (1/1) ... [2023-11-21 17:17:53,347 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 17:17:53,348 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 17:17:53,348 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 17:17:53,348 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 17:17:53,349 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:53" (1/1) ... [2023-11-21 17:17:53,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 17:17:53,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:17:53,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 17:17:53,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 17:17:53,415 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-21 17:17:53,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-21 17:17:53,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 17:17:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 17:17:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 17:17:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 17:17:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 17:17:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 17:17:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 17:17:53,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 17:17:53,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 17:17:53,418 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 17:17:53,547 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 17:17:53,549 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 17:17:53,690 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 17:17:53,922 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 17:17:53,922 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 17:17:53,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:17:53 BoogieIcfgContainer [2023-11-21 17:17:53,924 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 17:17:53,927 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 17:17:53,927 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 17:17:53,930 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 17:17:53,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:17:52" (1/3) ... [2023-11-21 17:17:53,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b377eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:17:53, skipping insertion in model container [2023-11-21 17:17:53,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:53" (2/3) ... [2023-11-21 17:17:53,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b377eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:17:53, skipping insertion in model container [2023-11-21 17:17:53,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:17:53" (3/3) ... [2023-11-21 17:17:53,939 INFO L112 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs-pthread.i [2023-11-21 17:17:53,947 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 17:17:53,957 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 17:17:53,958 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-11-21 17:17:53,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b377eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:17:53, skipping insertion in model container [2023-11-21 17:17:53,959 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 17:17:53,960 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 17:17:53,960 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 17:17:53,960 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 17:17:53,961 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:17:53" (3/3) ... [2023-11-21 17:17:53,964 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 17:17:53,979 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2023-11-21 17:17:53,984 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-21 17:17:53,985 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-21 17:17:53,985 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 17:17:53,986 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 17:17:54,070 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/witness.graphml [2023-11-21 17:17:54,070 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/witness.yml [2023-11-21 17:17:54,070 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 17:17:54,072 INFO L158 Benchmark]: Toolchain (without parser) took 1388.24ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 127.3MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 17:17:54,072 INFO L158 Benchmark]: CDTParser took 1.66ms. Allocated memory is still 117.4MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 17:17:54,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.33ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 102.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 17:17:54,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.74ms. Allocated memory is still 167.8MB. Free memory was 102.2MB in the beginning and 100.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 17:17:54,074 INFO L158 Benchmark]: Boogie Preprocessor took 29.09ms. Allocated memory is still 167.8MB. Free memory was 100.6MB in the beginning and 99.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 17:17:54,075 INFO L158 Benchmark]: RCFGBuilder took 576.46ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 134.5MB in the end (delta: -35.5MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2023-11-21 17:17:54,075 INFO L158 Benchmark]: TraceAbstraction took 32.73ms. Allocated memory is still 167.8MB. Free memory was 133.6MB in the beginning and 131.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 17:17:54,076 INFO L158 Benchmark]: Witness Printer took 110.40ms. Allocated memory is still 167.8MB. Free memory was 131.5MB in the beginning and 127.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 17:17:54,079 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.66ms. Allocated memory is still 117.4MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.33ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 102.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.74ms. Allocated memory is still 167.8MB. Free memory was 102.2MB in the beginning and 100.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.09ms. Allocated memory is still 167.8MB. Free memory was 100.6MB in the beginning and 99.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 576.46ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 134.5MB in the end (delta: -35.5MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. * TraceAbstraction took 32.73ms. Allocated memory is still 167.8MB. Free memory was 133.6MB in the beginning and 131.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 110.40ms. Allocated memory is still 167.8MB. Free memory was 131.5MB in the beginning and 127.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2023-11-21 17:17:54,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc511d6e-82da-4a05-8384-224a0bd5600a/bin/ugemcutter-verify-n4DOmGwLwf/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE