./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:20:33,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:20:33,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:20:33,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:20:33,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:20:33,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:20:33,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:20:33,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:20:33,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:20:33,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:20:33,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:20:33,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:20:33,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:20:33,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:20:33,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:20:33,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:20:33,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:20:33,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:20:33,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:20:33,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:20:33,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:20:33,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:20:33,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:20:33,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:20:33,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:20:33,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:20:33,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:20:33,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:20:33,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:20:33,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:20:33,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:20:33,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:20:33,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:20:33,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:20:33,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:20:33,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:20:33,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:20:33,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:20:33,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:20:33,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:20:33,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:20:33,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:20:33,643 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:20:33,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:20:33,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:20:33,645 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:20:33,646 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:20:33,647 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:20:33,647 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:20:33,647 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:20:33,648 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:20:33,648 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:20:33,649 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:20:33,650 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:20:33,650 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:20:33,650 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:20:33,651 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:20:33,651 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:20:33,651 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:20:33,652 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:20:33,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:20:33,654 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:20:33,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:20:33,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:20:33,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:20:33,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:20:33,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:20:33,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:20:33,657 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:20:33,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:20:33,658 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:20:33,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:20:33,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:20:33,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:20:33,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:20:33,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:20:33,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:20:33,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:20:33,661 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:20:33,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:20:33,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:20:33,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:20:33,663 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:20:33,663 INFO L138 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_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d [2021-11-23 17:20:33,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:20:34,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:20:34,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:20:34,005 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:20:34,006 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:20:34,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2021-11-23 17:20:34,095 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/data/bdae87d5e/4f11002a6d8c47d1bc857af385557a6b/FLAG142db7c99 [2021-11-23 17:20:34,835 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:20:34,835 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2021-11-23 17:20:34,871 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/data/bdae87d5e/4f11002a6d8c47d1bc857af385557a6b/FLAG142db7c99 [2021-11-23 17:20:35,076 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/data/bdae87d5e/4f11002a6d8c47d1bc857af385557a6b [2021-11-23 17:20:35,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:20:35,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:20:35,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:20:35,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:20:35,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:20:35,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:20:35" (1/1) ... [2021-11-23 17:20:35,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58917fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:35, skipping insertion in model container [2021-11-23 17:20:35,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:20:35" (1/1) ... [2021-11-23 17:20:35,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:20:35,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:20:35,666 WARN L230 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_fc990294-33ce-4228-ba99-794c29d833d2/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30382,30395] [2021-11-23 17:20:35,677 WARN L230 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_fc990294-33ce-4228-ba99-794c29d833d2/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30752,30765] [2021-11-23 17:20:35,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:20:35,698 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:20:35,753 WARN L230 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_fc990294-33ce-4228-ba99-794c29d833d2/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30382,30395] [2021-11-23 17:20:35,756 WARN L230 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_fc990294-33ce-4228-ba99-794c29d833d2/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30752,30765] [2021-11-23 17:20:35,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:20:35,804 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:20:35,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:35 WrapperNode [2021-11-23 17:20:35,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:20:35,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:20:35,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:20:35,807 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:20:35,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:35" (1/1) ... [2021-11-23 17:20:35,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:35" (1/1) ... [2021-11-23 17:20:35,855 INFO L137 Inliner]: procedures = 172, calls = 20, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 88 [2021-11-23 17:20:35,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:20:35,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:20:35,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:20:35,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:20:35,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:35" (1/1) ... [2021-11-23 17:20:35,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:35" (1/1) ... [2021-11-23 17:20:35,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:35" (1/1) ... [2021-11-23 17:20:35,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:35" (1/1) ... [2021-11-23 17:20:35,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:35" (1/1) ... [2021-11-23 17:20:35,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:35" (1/1) ... [2021-11-23 17:20:35,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:35" (1/1) ... [2021-11-23 17:20:35,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:20:35,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:20:35,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:20:35,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:20:35,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:35" (1/1) ... [2021-11-23 17:20:35,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:20:35,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:20:35,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:20:35,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:20:35,996 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 17:20:35,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 17:20:35,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:20:35,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:20:35,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:20:35,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:20:35,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:20:35,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:20:35,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:20:36,000 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 17:20:36,148 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:20:36,150 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:20:36,390 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:20:36,460 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:20:36,471 INFO L158 Benchmark]: Toolchain (without parser) took 1387.88ms. Allocated memory is still 98.6MB. Free memory was 66.9MB in the beginning and 48.7MB in the end (delta: 18.2MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2021-11-23 17:20:36,471 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory was 53.5MB in the beginning and 53.5MB in the end (delta: 47.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:20:36,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 722.46ms. Allocated memory is still 98.6MB. Free memory was 66.7MB in the beginning and 65.8MB in the end (delta: 834.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:20:36,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.34ms. Allocated memory is still 98.6MB. Free memory was 65.8MB in the beginning and 63.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:20:36,476 INFO L158 Benchmark]: Boogie Preprocessor took 29.22ms. Allocated memory is still 98.6MB. Free memory was 63.7MB in the beginning and 62.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:20:36,477 INFO L158 Benchmark]: RCFGBuilder took 581.39ms. Allocated memory is still 98.6MB. Free memory was 62.2MB in the beginning and 48.7MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:20:36,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory was 53.5MB in the beginning and 53.5MB in the end (delta: 47.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 722.46ms. Allocated memory is still 98.6MB. Free memory was 66.7MB in the beginning and 65.8MB in the end (delta: 834.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.34ms. Allocated memory is still 98.6MB. Free memory was 65.8MB in the beginning and 63.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.22ms. Allocated memory is still 98.6MB. Free memory was 63.7MB in the beginning and 62.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 581.39ms. Allocated memory is still 98.6MB. Free memory was 62.2MB in the beginning and 48.7MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:20:36,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:20:39,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:20:39,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:20:39,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:20:39,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:20:39,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:20:39,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:20:39,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:20:39,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:20:39,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:20:39,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:20:39,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:20:39,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:20:39,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:20:39,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:20:39,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:20:39,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:20:39,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:20:39,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:20:39,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:20:39,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:20:39,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:20:39,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:20:39,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:20:39,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:20:39,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:20:39,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:20:39,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:20:39,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:20:39,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:20:39,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:20:39,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:20:39,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:20:39,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:20:39,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:20:39,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:20:39,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:20:39,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:20:39,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:20:39,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:20:39,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:20:39,405 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:20:39,470 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:20:39,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:20:39,472 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:20:39,472 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:20:39,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:20:39,473 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:20:39,474 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:20:39,474 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:20:39,474 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:20:39,474 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:20:39,476 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:20:39,476 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:20:39,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:20:39,478 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:20:39,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:20:39,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:20:39,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:20:39,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:20:39,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:20:39,480 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:20:39,480 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:20:39,480 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:20:39,481 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:20:39,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:20:39,481 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:20:39,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:20:39,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:20:39,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:20:39,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:20:39,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:20:39,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:20:39,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:20:39,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:20:39,484 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:20:39,484 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:20:39,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:20:39,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:20:39,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:20:39,486 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d [2021-11-23 17:20:39,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:20:39,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:20:39,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:20:39,922 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:20:39,923 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:20:39,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2021-11-23 17:20:40,009 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/data/bb18ce5a0/383f03976d1e484fbbca0b675b7facb2/FLAGe4d67a1c0 [2021-11-23 17:20:40,666 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:20:40,667 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2021-11-23 17:20:40,696 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/data/bb18ce5a0/383f03976d1e484fbbca0b675b7facb2/FLAGe4d67a1c0 [2021-11-23 17:20:40,919 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/data/bb18ce5a0/383f03976d1e484fbbca0b675b7facb2 [2021-11-23 17:20:40,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:20:40,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:20:40,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:20:40,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:20:40,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:20:40,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:20:40" (1/1) ... [2021-11-23 17:20:40,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@abcf72b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:40, skipping insertion in model container [2021-11-23 17:20:40,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:20:40" (1/1) ... [2021-11-23 17:20:40,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:20:41,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:20:41,483 WARN L230 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_fc990294-33ce-4228-ba99-794c29d833d2/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30382,30395] [2021-11-23 17:20:41,496 WARN L230 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_fc990294-33ce-4228-ba99-794c29d833d2/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30752,30765] [2021-11-23 17:20:41,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:20:41,542 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:20:41,605 WARN L230 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_fc990294-33ce-4228-ba99-794c29d833d2/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30382,30395] [2021-11-23 17:20:41,614 WARN L230 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_fc990294-33ce-4228-ba99-794c29d833d2/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i[30752,30765] [2021-11-23 17:20:41,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:20:41,681 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:20:41,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:41 WrapperNode [2021-11-23 17:20:41,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:20:41,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:20:41,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:20:41,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:20:41,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:41" (1/1) ... [2021-11-23 17:20:41,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:41" (1/1) ... [2021-11-23 17:20:41,772 INFO L137 Inliner]: procedures = 175, calls = 20, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 89 [2021-11-23 17:20:41,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:20:41,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:20:41,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:20:41,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:20:41,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:41" (1/1) ... [2021-11-23 17:20:41,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:41" (1/1) ... [2021-11-23 17:20:41,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:41" (1/1) ... [2021-11-23 17:20:41,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:41" (1/1) ... [2021-11-23 17:20:41,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:41" (1/1) ... [2021-11-23 17:20:41,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:41" (1/1) ... [2021-11-23 17:20:41,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:41" (1/1) ... [2021-11-23 17:20:41,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:20:41,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:20:41,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:20:41,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:20:41,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:41" (1/1) ... [2021-11-23 17:20:41,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:20:41,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:20:41,903 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:20:41,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:20:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 17:20:41,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 17:20:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:20:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:20:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:20:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:20:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:20:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:20:41,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:20:41,987 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 17:20:42,167 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:20:42,169 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:20:42,446 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:20:42,512 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:20:42,523 INFO L158 Benchmark]: Toolchain (without parser) took 1597.18ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 35.3MB in the beginning and 41.5MB in the end (delta: -6.2MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2021-11-23 17:20:42,525 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory was 39.9MB in the beginning and 39.8MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:20:42,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 755.50ms. Allocated memory is still 58.7MB. Free memory was 35.2MB in the beginning and 31.6MB in the end (delta: 3.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:20:42,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.61ms. Allocated memory is still 58.7MB. Free memory was 31.5MB in the beginning and 29.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:20:42,529 INFO L158 Benchmark]: Boogie Preprocessor took 75.01ms. Allocated memory is still 58.7MB. Free memory was 29.3MB in the beginning and 27.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:20:42,530 INFO L158 Benchmark]: RCFGBuilder took 670.43ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 27.7MB in the beginning and 41.5MB in the end (delta: -13.8MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-11-23 17:20:42,541 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory was 39.9MB in the beginning and 39.8MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 755.50ms. Allocated memory is still 58.7MB. Free memory was 35.2MB in the beginning and 31.6MB in the end (delta: 3.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.61ms. Allocated memory is still 58.7MB. Free memory was 31.5MB in the beginning and 29.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.01ms. Allocated memory is still 58.7MB. Free memory was 29.3MB in the beginning and 27.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 670.43ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 27.7MB in the beginning and 41.5MB in the end (delta: -13.8MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:20:42,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc990294-33ce-4228-ba99-794c29d833d2/bin/utaipan-fb15Y9Yzbl/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: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable