./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 4e7fbc69 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_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am/config/GemCutterReach.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_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am --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 GemCutter --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-4e7fbc6 [2022-11-23 06:52:53,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 06:52:53,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 06:52:53,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 06:52:53,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 06:52:53,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 06:52:53,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 06:52:53,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 06:52:53,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 06:52:53,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 06:52:53,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 06:52:53,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 06:52:53,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 06:52:53,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 06:52:53,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 06:52:53,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 06:52:53,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 06:52:53,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 06:52:53,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 06:52:53,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 06:52:53,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 06:52:53,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 06:52:53,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 06:52:53,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 06:52:53,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 06:52:53,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 06:52:53,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 06:52:53,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 06:52:53,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 06:52:53,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 06:52:53,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 06:52:53,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 06:52:53,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 06:52:53,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 06:52:53,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 06:52:53,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 06:52:53,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 06:52:53,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 06:52:53,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 06:52:53,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 06:52:53,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 06:52:53,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2022-11-23 06:52:53,671 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 06:52:53,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 06:52:53,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 06:52:53,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 06:52:53,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 06:52:53,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 06:52:53,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 06:52:53,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 06:52:53,674 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 06:52:53,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 06:52:53,674 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 06:52:53,674 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 06:52:53,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 06:52:53,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 06:52:53,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 06:52:53,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 06:52:53,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 06:52:53,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 06:52:53,676 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 06:52:53,676 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 06:52:53,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 06:52:53,676 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 06:52:53,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 06:52:53,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 06:52:53,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 06:52:53,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 06:52:53,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:52:53,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 06:52:53,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 06:52:53,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 06:52:53,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 06:52:53,683 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-11-23 06:52:53,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 06:52:53,684 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-23 06:52:53,684 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-23 06:52:53,684 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-23 06:52:53,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 06:52:53,685 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-23 06:52:53,686 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-23 06:52:53,686 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_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 [2022-11-23 06:52:54,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 06:52:54,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 06:52:54,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 06:52:54,076 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 06:52:54,077 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 06:52:54,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am/../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2022-11-23 06:52:57,085 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 06:52:57,485 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 06:52:57,498 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98215d1b-d42d-455e-a35f-e46a08c4c734/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2022-11-23 06:52:57,510 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am/data/489bc8414/3843160c4a984e8e9fd4a3dfb0f87ff0/FLAGbcbd721f0 [2022-11-23 06:52:57,530 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am/data/489bc8414/3843160c4a984e8e9fd4a3dfb0f87ff0 [2022-11-23 06:52:57,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 06:52:57,534 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 06:52:57,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 06:52:57,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 06:52:57,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 06:52:57,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:52:57" (1/1) ... [2022-11-23 06:52:57,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a3fb57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:52:57, skipping insertion in model container [2022-11-23 06:52:57,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:52:57" (1/1) ... [2022-11-23 06:52:57,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 06:52:57,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 06:52:57,753 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 06:52:57,936 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_98215d1b-d42d-455e-a35f-e46a08c4c734/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2022-11-23 06:52:57,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:52:57,955 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 06:52:57,983 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 06:52:58,018 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_98215d1b-d42d-455e-a35f-e46a08c4c734/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2022-11-23 06:52:58,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:52:58,057 INFO L208 MainTranslator]: Completed translation [2022-11-23 06:52:58,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:52:58 WrapperNode [2022-11-23 06:52:58,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 06:52:58,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 06:52:58,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 06:52:58,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 06:52:58,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:52:58" (1/1) ... [2022-11-23 06:52:58,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:52:58" (1/1) ... [2022-11-23 06:52:58,124 INFO L138 Inliner]: procedures = 173, calls = 24, calls flagged for inlining = 5, calls inlined = 7, statements flattened = 108 [2022-11-23 06:52:58,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 06:52:58,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 06:52:58,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 06:52:58,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 06:52:58,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:52:58" (1/1) ... [2022-11-23 06:52:58,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:52:58" (1/1) ... [2022-11-23 06:52:58,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:52:58" (1/1) ... [2022-11-23 06:52:58,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:52:58" (1/1) ... [2022-11-23 06:52:58,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:52:58" (1/1) ... [2022-11-23 06:52:58,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:52:58" (1/1) ... [2022-11-23 06:52:58,179 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:52:58" (1/1) ... [2022-11-23 06:52:58,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:52:58" (1/1) ... [2022-11-23 06:52:58,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 06:52:58,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 06:52:58,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 06:52:58,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 06:52:58,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:52:58" (1/1) ... [2022-11-23 06:52:58,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:52:58,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:52:58,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 06:52:58,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 06:52:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 06:52:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-23 06:52:58,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-23 06:52:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 06:52:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 06:52:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 06:52:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 06:52:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 06:52:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 06:52:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 06:52:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 06:52:58,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 06:52:58,289 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 06:52:58,469 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 06:52:58,471 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 06:52:58,818 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 06:52:58,946 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 06:52:58,947 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 06:52:58,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:52:58 BoogieIcfgContainer [2022-11-23 06:52:58,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 06:52:58,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 06:52:58,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 06:52:58,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 06:52:58,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:52:57" (1/3) ... [2022-11-23 06:52:58,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de41ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:52:58, skipping insertion in model container [2022-11-23 06:52:58,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:52:58" (2/3) ... [2022-11-23 06:52:58,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de41ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:52:58, skipping insertion in model container [2022-11-23 06:52:58,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:52:58" (3/3) ... [2022-11-23 06:52:58,961 INFO L112 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs.i [2022-11-23 06:52:58,971 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 06:52:58,983 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 06:52:58,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-23 06:52:58,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de41ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:52:58, skipping insertion in model container [2022-11-23 06:52:58,986 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 06:52:58,987 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 06:52:58,987 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 06:52:58,987 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 06:52:58,988 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:52:58" (3/3) ... [2022-11-23 06:52:58,994 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 06:52:59,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2022-11-23 06:52:59,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2022-11-23 06:52:59,011 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-23 06:52:59,011 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 06:52:59,011 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 06:52:59,074 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am/witness.graphml [2022-11-23 06:52:59,075 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 06:52:59,076 INFO L158 Benchmark]: Toolchain (without parser) took 1541.45ms. Allocated memory is still 136.3MB. Free memory was 104.2MB in the beginning and 105.7MB in the end (delta: -1.5MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2022-11-23 06:52:59,077 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 136.3MB. Free memory is still 109.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 06:52:59,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.43ms. Allocated memory is still 136.3MB. Free memory was 104.2MB in the beginning and 84.4MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 06:52:59,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.01ms. Allocated memory is still 136.3MB. Free memory was 84.4MB in the beginning and 82.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 06:52:59,079 INFO L158 Benchmark]: Boogie Preprocessor took 57.75ms. Allocated memory is still 136.3MB. Free memory was 82.3MB in the beginning and 80.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 06:52:59,079 INFO L158 Benchmark]: RCFGBuilder took 753.79ms. Allocated memory is still 136.3MB. Free memory was 80.7MB in the beginning and 60.2MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 06:52:59,080 INFO L158 Benchmark]: TraceAbstraction took 33.73ms. Allocated memory is still 136.3MB. Free memory was 59.7MB in the beginning and 57.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 06:52:59,080 INFO L158 Benchmark]: Witness Printer took 88.34ms. Allocated memory is still 136.3MB. Free memory was 57.4MB in the beginning and 105.7MB in the end (delta: -48.3MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-11-23 06:52:59,083 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 136.3MB. Free memory is still 109.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 522.43ms. Allocated memory is still 136.3MB. Free memory was 104.2MB in the beginning and 84.4MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.01ms. Allocated memory is still 136.3MB. Free memory was 84.4MB in the beginning and 82.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.75ms. Allocated memory is still 136.3MB. Free memory was 82.3MB in the beginning and 80.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 753.79ms. Allocated memory is still 136.3MB. Free memory was 80.7MB in the beginning and 60.2MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 33.73ms. Allocated memory is still 136.3MB. Free memory was 59.7MB in the beginning and 57.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 88.34ms. Allocated memory is still 136.3MB. Free memory was 57.4MB in the beginning and 105.7MB in the end (delta: -48.3MB). Peak memory consumption was 8.0MB. 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! [2022-11-23 06:52:59,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98215d1b-d42d-455e-a35f-e46a08c4c734/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE