./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --- 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-6b4ec56 [2022-11-20 11:16:37,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:16:37,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:16:37,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:16:37,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:16:37,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:16:37,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:16:37,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:16:37,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:16:37,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:16:37,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:16:37,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:16:37,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:16:37,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:16:37,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:16:37,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:16:37,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:16:37,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:16:37,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:16:37,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:16:37,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:16:37,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:16:37,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:16:37,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:16:37,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:16:37,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:16:37,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:16:37,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:16:37,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:16:37,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:16:37,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:16:37,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:16:37,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:16:37,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:16:37,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:16:37,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:16:37,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:16:37,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:16:37,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:16:37,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:16:37,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:16:37,350 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:16:37,400 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:16:37,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:16:37,402 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:16:37,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:16:37,404 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:16:37,404 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:16:37,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:16:37,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:16:37,406 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:16:37,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:16:37,408 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:16:37,409 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:16:37,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:16:37,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:16:37,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:16:37,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:16:37,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:16:37,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:16:37,411 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:16:37,412 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:16:37,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:16:37,412 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:16:37,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:16:37,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:16:37,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:16:37,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:16:37,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:16:37,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:16:37,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:16:37,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:16:37,417 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:16:37,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:16:37,418 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:16:37,418 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:16:37,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:16:37,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 [2022-11-20 11:16:37,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:16:37,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:16:37,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:16:37,893 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:16:37,894 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:16:37,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2022-11-20 11:16:40,954 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:16:41,314 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:16:41,315 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2022-11-20 11:16:41,327 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN/data/7bd4982f2/f2e19cc15d5a48caa351dd27b6f9eff9/FLAG2b0dea8a6 [2022-11-20 11:16:41,346 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN/data/7bd4982f2/f2e19cc15d5a48caa351dd27b6f9eff9 [2022-11-20 11:16:41,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:16:41,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:16:41,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:16:41,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:16:41,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:16:41,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:16:41" (1/1) ... [2022-11-20 11:16:41,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53a5563e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:41, skipping insertion in model container [2022-11-20 11:16:41,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:16:41" (1/1) ... [2022-11-20 11:16:41,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:16:41,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:16:41,665 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:16:41,838 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_dab98564-5332-40b1-8f4b-9275e28334ef/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2022-11-20 11:16:41,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:16:41,854 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:16:41,872 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:16:41,900 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_dab98564-5332-40b1-8f4b-9275e28334ef/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2022-11-20 11:16:41,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:16:41,938 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:16:41,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:41 WrapperNode [2022-11-20 11:16:41,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:16:41,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:16:41,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:16:41,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:16:41,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:41" (1/1) ... [2022-11-20 11:16:41,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:41" (1/1) ... [2022-11-20 11:16:41,986 INFO L138 Inliner]: procedures = 173, calls = 24, calls flagged for inlining = 5, calls inlined = 7, statements flattened = 108 [2022-11-20 11:16:41,987 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:16:41,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:16:41,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:16:41,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:16:41,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:41" (1/1) ... [2022-11-20 11:16:41,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:41" (1/1) ... [2022-11-20 11:16:42,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:41" (1/1) ... [2022-11-20 11:16:42,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:41" (1/1) ... [2022-11-20 11:16:42,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:41" (1/1) ... [2022-11-20 11:16:42,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:41" (1/1) ... [2022-11-20 11:16:42,012 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:41" (1/1) ... [2022-11-20 11:16:42,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:41" (1/1) ... [2022-11-20 11:16:42,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:16:42,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:16:42,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:16:42,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:16:42,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:41" (1/1) ... [2022-11-20 11:16:42,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:16:42,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:16:42,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:16:42,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:16:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:16:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-20 11:16:42,109 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-20 11:16:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:16:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 11:16:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:16:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:16:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:16:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:16:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 11:16:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:16:42,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:16:42,113 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:16:42,303 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:16:42,312 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:16:42,625 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:16:42,766 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:16:42,766 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 11:16:42,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:16:42 BoogieIcfgContainer [2022-11-20 11:16:42,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:16:42,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:16:42,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:16:42,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:16:42,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:16:41" (1/3) ... [2022-11-20 11:16:42,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4555be8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:16:42, skipping insertion in model container [2022-11-20 11:16:42,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:41" (2/3) ... [2022-11-20 11:16:42,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4555be8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:16:42, skipping insertion in model container [2022-11-20 11:16:42,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:16:42" (3/3) ... [2022-11-20 11:16:42,785 INFO L112 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs.i [2022-11-20 11:16:42,795 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:16:42,806 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:16:42,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-20 11:16:42,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4555be8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:16:42, skipping insertion in model container [2022-11-20 11:16:42,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:16:42,810 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:16:42,810 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:16:42,811 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:16:42,812 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:16:42" (3/3) ... [2022-11-20 11:16:42,816 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:16:42,823 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2022-11-20 11:16:42,831 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2022-11-20 11:16:42,832 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-20 11:16:42,832 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 11:16:42,832 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:16:42,887 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:16:42,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:16:42,892 INFO L158 Benchmark]: Toolchain (without parser) took 1537.88ms. Allocated memory is still 148.9MB. Free memory was 114.9MB in the beginning and 65.8MB in the end (delta: 49.1MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-20 11:16:42,893 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:16:42,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 579.44ms. Allocated memory is still 148.9MB. Free memory was 114.9MB in the beginning and 95.6MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 11:16:42,897 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.87ms. Allocated memory is still 148.9MB. Free memory was 95.6MB in the beginning and 93.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:16:42,897 INFO L158 Benchmark]: Boogie Preprocessor took 29.30ms. Allocated memory is still 148.9MB. Free memory was 93.5MB in the beginning and 91.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:16:42,898 INFO L158 Benchmark]: RCFGBuilder took 755.54ms. Allocated memory is still 148.9MB. Free memory was 91.9MB in the beginning and 71.3MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 11:16:42,898 INFO L158 Benchmark]: TraceAbstraction took 34.01ms. Allocated memory is still 148.9MB. Free memory was 70.9MB in the beginning and 68.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:16:42,900 INFO L158 Benchmark]: Witness Printer took 80.44ms. Allocated memory is still 148.9MB. Free memory was 68.6MB in the beginning and 65.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:16:42,902 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 579.44ms. Allocated memory is still 148.9MB. Free memory was 114.9MB in the beginning and 95.6MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.87ms. Allocated memory is still 148.9MB. Free memory was 95.6MB in the beginning and 93.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.30ms. Allocated memory is still 148.9MB. Free memory was 93.5MB in the beginning and 91.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 755.54ms. Allocated memory is still 148.9MB. Free memory was 91.9MB in the beginning and 71.3MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 34.01ms. Allocated memory is still 148.9MB. Free memory was 70.9MB in the beginning and 68.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 80.44ms. Allocated memory is still 148.9MB. Free memory was 68.6MB in the beginning and 65.8MB in the end (delta: 2.8MB). 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! [2022-11-20 11:16:42,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dab98564-5332-40b1-8f4b-9275e28334ef/bin/uautomizer-ug76WZFUDN/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