./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 0e0057cc 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_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.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_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 801883caffd8b582a36607f9ec62109ac5c5dc10c811693a281fb396b4b60131 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:25:25,083 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:25:25,148 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 15:25:25,153 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:25:25,153 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:25:25,180 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:25:25,180 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:25:25,181 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:25:25,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:25:25,182 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:25:25,183 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:25:25,183 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:25:25,184 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:25:25,184 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:25:25,185 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:25:25,186 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:25:25,186 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:25:25,187 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:25:25,187 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:25:25,188 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:25:25,189 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:25:25,189 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:25:25,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:25:25,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:25:25,191 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:25:25,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:25:25,192 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:25:25,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:25:25,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:25:25,194 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:25:25,194 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:25:25,194 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 15:25:25,195 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 15:25:25,195 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:25:25,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:25:25,195 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:25:25,196 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:25:25,196 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:25:25,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:25:25,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:25:25,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:25:25,197 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:25:25,197 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:25:25,197 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:25:25,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:25:25,198 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:25:25,198 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:25:25,198 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:25:25,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:25:25,198 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 801883caffd8b582a36607f9ec62109ac5c5dc10c811693a281fb396b4b60131 [2023-12-02 15:25:25,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:25:25,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:25:25,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:25:25,465 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:25:25,466 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:25:25,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-pthread.i [2023-12-02 15:25:28,284 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:25:28,531 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:25:28,532 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-pthread.i [2023-12-02 15:25:28,549 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/data/97b3b153f/702d6db0967340ad9570a5e31cff3a6a/FLAGef1b5d905 [2023-12-02 15:25:28,565 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/data/97b3b153f/702d6db0967340ad9570a5e31cff3a6a [2023-12-02 15:25:28,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:25:28,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:25:28,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:25:28,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:25:28,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:25:28,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:25:28" (1/1) ... [2023-12-02 15:25:28,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e58d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:28, skipping insertion in model container [2023-12-02 15:25:28,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:25:28" (1/1) ... [2023-12-02 15:25:28,644 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:25:29,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:25:29,024 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:25:29,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:25:29,113 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:25:29,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:29 WrapperNode [2023-12-02 15:25:29,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:25:29,115 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:25:29,115 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:25:29,115 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:25:29,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:29" (1/1) ... [2023-12-02 15:25:29,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:29" (1/1) ... [2023-12-02 15:25:29,167 INFO L138 Inliner]: procedures = 165, calls = 21, calls flagged for inlining = 4, calls inlined = 5, statements flattened = 75 [2023-12-02 15:25:29,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:25:29,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:25:29,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:25:29,169 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:25:29,178 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:29" (1/1) ... [2023-12-02 15:25:29,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:29" (1/1) ... [2023-12-02 15:25:29,181 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:29" (1/1) ... [2023-12-02 15:25:29,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:29" (1/1) ... [2023-12-02 15:25:29,188 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:29" (1/1) ... [2023-12-02 15:25:29,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:29" (1/1) ... [2023-12-02 15:25:29,195 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:29" (1/1) ... [2023-12-02 15:25:29,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:29" (1/1) ... [2023-12-02 15:25:29,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:25:29,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:25:29,201 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:25:29,201 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:25:29,202 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:29" (1/1) ... [2023-12-02 15:25:29,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:25:29,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:25:29,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:25:29,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:25:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-12-02 15:25:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-12-02 15:25:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:25:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 15:25:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:25:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:25:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:25:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:25:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 15:25:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:25:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:25:29,284 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 15:25:29,443 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:25:29,446 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:25:29,588 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:25:29,714 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:25:29,714 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:25:29,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:25:29 BoogieIcfgContainer [2023-12-02 15:25:29,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:25:29,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:25:29,719 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:25:29,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:25:29,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:25:28" (1/3) ... [2023-12-02 15:25:29,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596c958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:25:29, skipping insertion in model container [2023-12-02 15:25:29,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:25:29" (2/3) ... [2023-12-02 15:25:29,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596c958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:25:29, skipping insertion in model container [2023-12-02 15:25:29,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:25:29" (3/3) ... [2023-12-02 15:25:29,726 INFO L112 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs-pthread.i [2023-12-02 15:25:29,736 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 15:25:29,760 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:25:29,760 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-12-02 15:25:29,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596c958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:25:29, skipping insertion in model container [2023-12-02 15:25:29,762 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:25:29,763 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:25:29,763 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:25:29,764 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:25:29,764 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:25:29" (3/3) ... [2023-12-02 15:25:29,767 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 15:25:29,771 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2023-12-02 15:25:29,776 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-12-02 15:25:29,776 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-12-02 15:25:29,776 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 15:25:29,777 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-12-02 15:25:29,888 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 15:25:29,888 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 15:25:29,888 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:25:29,890 INFO L158 Benchmark]: Toolchain (without parser) took 1319.62ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 98.2MB in the beginning and 146.3MB in the end (delta: -48.1MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2023-12-02 15:25:29,891 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 138.4MB. Free memory was 108.1MB in the beginning and 108.0MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:25:29,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 543.06ms. Allocated memory is still 138.4MB. Free memory was 97.7MB in the beginning and 78.4MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 15:25:29,892 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.47ms. Allocated memory is still 138.4MB. Free memory was 78.4MB in the beginning and 76.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:25:29,893 INFO L158 Benchmark]: Boogie Preprocessor took 31.55ms. Allocated memory is still 138.4MB. Free memory was 76.3MB in the beginning and 75.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:25:29,894 INFO L158 Benchmark]: RCFGBuilder took 514.49ms. Allocated memory is still 138.4MB. Free memory was 75.1MB in the beginning and 52.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-12-02 15:25:29,894 INFO L158 Benchmark]: TraceAbstraction took 43.89ms. Allocated memory is still 138.4MB. Free memory was 51.2MB in the beginning and 106.3MB in the end (delta: -55.2MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2023-12-02 15:25:29,895 INFO L158 Benchmark]: Witness Printer took 125.11ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 106.3MB in the beginning and 146.3MB in the end (delta: -40.0MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-12-02 15:25:29,899 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 138.4MB. Free memory was 108.1MB in the beginning and 108.0MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 543.06ms. Allocated memory is still 138.4MB. Free memory was 97.7MB in the beginning and 78.4MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.47ms. Allocated memory is still 138.4MB. Free memory was 78.4MB in the beginning and 76.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.55ms. Allocated memory is still 138.4MB. Free memory was 76.3MB in the beginning and 75.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 514.49ms. Allocated memory is still 138.4MB. Free memory was 75.1MB in the beginning and 52.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 43.89ms. Allocated memory is still 138.4MB. Free memory was 51.2MB in the beginning and 106.3MB in the end (delta: -55.2MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Witness Printer took 125.11ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 106.3MB in the beginning and 146.3MB in the end (delta: -40.0MB). Peak memory consumption was 5.8MB. 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! [2023-12-02 15:25:29,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b114ce56-c646-4035-bc5a-6d6fc92b8ac3/bin/utaipan-verify-nQ1chXbOIh/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