./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c --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_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/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_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/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_d0e45d3a-3958-49f6-93cf-e7dda3475519/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 ec1cd52a445477adf7d2011977810418f8e00abf9d0587e75a609261005f64da --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:41:23,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:41:23,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:41:23,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:41:23,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:41:23,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:41:23,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:41:23,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:41:23,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:41:23,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:41:23,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:41:23,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:41:23,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:41:23,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:41:23,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:41:23,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:41:23,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:41:23,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:41:23,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:41:23,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:41:23,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:41:23,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:41:23,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:41:23,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:41:23,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:41:23,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:41:23,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:41:23,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:41:23,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:41:23,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:41:23,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:41:23,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:41:23,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:41:23,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:41:23,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:41:23,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:41:23,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:41:23,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:41:23,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:41:23,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:41:23,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:41:23,418 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:41:23,458 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:41:23,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:41:23,458 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:41:23,459 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:41:23,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:41:23,460 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:41:23,460 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:41:23,461 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:41:23,461 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:41:23,461 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:41:23,462 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:41:23,462 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:41:23,462 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:41:23,463 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:41:23,463 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:41:23,463 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:41:23,464 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:41:23,464 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:41:23,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:41:23,465 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:41:23,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:41:23,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:41:23,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:41:23,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:41:23,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:41:23,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:41:23,467 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:41:23,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:41:23,468 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:41:23,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:41:23,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:41:23,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:41:23,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:41:23,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:41:23,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:41:23,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:41:23,470 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:41:23,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:41:23,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:41:23,471 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:41:23,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:41:23,472 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_d0e45d3a-3958-49f6-93cf-e7dda3475519/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec1cd52a445477adf7d2011977810418f8e00abf9d0587e75a609261005f64da [2021-11-23 17:41:23,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:41:23,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:41:23,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:41:23,859 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:41:23,860 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:41:23,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c [2021-11-23 17:41:23,967 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/data/48c297159/204befd558cf4c5fa151ed13647e27ea/FLAGcd66e0fd6 [2021-11-23 17:41:25,135 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:41:25,136 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c [2021-11-23 17:41:25,219 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/data/48c297159/204befd558cf4c5fa151ed13647e27ea/FLAGcd66e0fd6 [2021-11-23 17:41:25,368 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/data/48c297159/204befd558cf4c5fa151ed13647e27ea [2021-11-23 17:41:25,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:41:25,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:41:25,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:41:25,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:41:25,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:41:25,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:41:25" (1/1) ... [2021-11-23 17:41:25,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d281ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:25, skipping insertion in model container [2021-11-23 17:41:25,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:41:25" (1/1) ... [2021-11-23 17:41:25,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:41:25,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:41:28,466 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_d0e45d3a-3958-49f6-93cf-e7dda3475519/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c[380323,380336] [2021-11-23 17:41:28,499 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_d0e45d3a-3958-49f6-93cf-e7dda3475519/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c[383339,383352] [2021-11-23 17:41:29,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:41:29,059 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:41:30,509 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_d0e45d3a-3958-49f6-93cf-e7dda3475519/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c[380323,380336] [2021-11-23 17:41:30,530 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_d0e45d3a-3958-49f6-93cf-e7dda3475519/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c[383339,383352] [2021-11-23 17:41:30,572 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:41:30,670 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:41:30,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:30 WrapperNode [2021-11-23 17:41:30,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:41:30,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:41:30,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:41:30,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:41:30,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:30" (1/1) ... [2021-11-23 17:41:30,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:30" (1/1) ... [2021-11-23 17:41:31,531 INFO L137 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13257 [2021-11-23 17:41:31,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:41:31,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:41:31,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:41:31,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:41:31,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:30" (1/1) ... [2021-11-23 17:41:31,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:30" (1/1) ... [2021-11-23 17:41:31,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:30" (1/1) ... [2021-11-23 17:41:31,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:30" (1/1) ... [2021-11-23 17:41:31,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:30" (1/1) ... [2021-11-23 17:41:32,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:30" (1/1) ... [2021-11-23 17:41:32,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:30" (1/1) ... [2021-11-23 17:41:32,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:41:32,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:41:32,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:41:32,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:41:32,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:30" (1/1) ... [2021-11-23 17:41:32,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:41:32,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:41:32,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:41:32,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:41:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:41:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:41:32,210 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:41:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:41:32,211 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:41:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:41:32,211 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:41:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:41:32,212 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:41:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:41:32,212 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:41:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:41:32,212 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:41:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:41:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:41:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:41:32,376 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:41:32,379 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:41:41,813 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:41:41,970 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$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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 17:41:41,976 INFO L158 Benchmark]: Toolchain (without parser) took 16598.82ms. Allocated memory was 96.5MB in the beginning and 1.0GB in the end (delta: 939.5MB). Free memory was 46.0MB in the beginning and 741.9MB in the end (delta: -695.8MB). Peak memory consumption was 400.2MB. Max. memory is 16.1GB. [2021-11-23 17:41:41,978 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 96.5MB. Free memory was 67.6MB in the beginning and 67.5MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:41:41,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5293.03ms. Allocated memory was 96.5MB in the beginning and 199.2MB in the end (delta: 102.8MB). Free memory was 46.0MB in the beginning and 89.5MB in the end (delta: -43.4MB). Peak memory consumption was 110.3MB. Max. memory is 16.1GB. [2021-11-23 17:41:41,982 INFO L158 Benchmark]: Boogie Procedure Inliner took 859.88ms. Allocated memory was 199.2MB in the beginning and 337.6MB in the end (delta: 138.4MB). Free memory was 89.5MB in the beginning and 200.6MB in the end (delta: -111.1MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2021-11-23 17:41:41,982 INFO L158 Benchmark]: Boogie Preprocessor took 570.96ms. Allocated memory is still 337.6MB. Free memory was 200.6MB in the beginning and 151.8MB in the end (delta: 48.8MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2021-11-23 17:41:41,984 INFO L158 Benchmark]: RCFGBuilder took 9867.96ms. Allocated memory was 337.6MB in the beginning and 1.0GB in the end (delta: 698.4MB). Free memory was 151.8MB in the beginning and 741.9MB in the end (delta: -590.0MB). Peak memory consumption was 264.2MB. Max. memory is 16.1GB. [2021-11-23 17:41:41,995 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 96.5MB. Free memory was 67.6MB in the beginning and 67.5MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5293.03ms. Allocated memory was 96.5MB in the beginning and 199.2MB in the end (delta: 102.8MB). Free memory was 46.0MB in the beginning and 89.5MB in the end (delta: -43.4MB). Peak memory consumption was 110.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 859.88ms. Allocated memory was 199.2MB in the beginning and 337.6MB in the end (delta: 138.4MB). Free memory was 89.5MB in the beginning and 200.6MB in the end (delta: -111.1MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 570.96ms. Allocated memory is still 337.6MB. Free memory was 200.6MB in the beginning and 151.8MB in the end (delta: 48.8MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. * RCFGBuilder took 9867.96ms. Allocated memory was 337.6MB in the beginning and 1.0GB in the end (delta: 698.4MB). Free memory was 151.8MB in the beginning and 741.9MB in the end (delta: -590.0MB). Peak memory consumption was 264.2MB. 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 17:41:42,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/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_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/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_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/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_d0e45d3a-3958-49f6-93cf-e7dda3475519/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 ec1cd52a445477adf7d2011977810418f8e00abf9d0587e75a609261005f64da --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:41:44,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:41:44,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:41:44,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:41:44,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:41:44,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:41:44,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:41:44,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:41:44,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:41:44,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:41:44,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:41:44,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:41:44,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:41:44,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:41:44,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:41:44,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:41:44,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:41:44,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:41:44,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:41:44,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:41:44,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:41:44,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:41:44,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:41:44,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:41:44,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:41:44,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:41:44,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:41:44,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:41:44,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:41:44,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:41:44,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:41:44,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:41:44,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:41:44,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:41:44,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:41:44,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:41:44,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:41:44,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:41:44,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:41:44,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:41:44,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:41:44,839 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:41:44,869 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:41:44,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:41:44,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:41:44,871 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:41:44,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:41:44,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:41:44,872 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:41:44,873 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:41:44,873 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:41:44,873 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:41:44,874 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:41:44,874 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:41:44,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:41:44,876 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:41:44,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:41:44,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:41:44,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:41:44,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:41:44,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:41:44,878 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:41:44,878 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:41:44,879 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:41:44,879 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:41:44,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:41:44,880 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:41:44,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:41:44,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:41:44,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:41:44,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:41:44,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:41:44,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:41:44,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:41:44,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:41:44,883 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:41:44,883 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:41:44,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:41:44,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:41:44,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:41:44,884 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_d0e45d3a-3958-49f6-93cf-e7dda3475519/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec1cd52a445477adf7d2011977810418f8e00abf9d0587e75a609261005f64da [2021-11-23 17:41:45,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:41:45,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:41:45,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:41:45,414 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:41:45,416 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:41:45,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c [2021-11-23 17:41:45,496 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/data/dd42d7921/83809f2c0f05471290f45be7b3859130/FLAGc1821b685 [2021-11-23 17:41:46,944 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:41:46,945 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c [2021-11-23 17:41:47,017 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/data/dd42d7921/83809f2c0f05471290f45be7b3859130/FLAGc1821b685 [2021-11-23 17:41:47,429 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/data/dd42d7921/83809f2c0f05471290f45be7b3859130 [2021-11-23 17:41:47,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:41:47,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:41:47,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:41:47,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:41:47,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:41:47,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:41:47" (1/1) ... [2021-11-23 17:41:47,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13737b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:47, skipping insertion in model container [2021-11-23 17:41:47,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:41:47" (1/1) ... [2021-11-23 17:41:47,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:41:47,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:41:50,986 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_d0e45d3a-3958-49f6-93cf-e7dda3475519/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c[380323,380336] [2021-11-23 17:41:51,026 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_d0e45d3a-3958-49f6-93cf-e7dda3475519/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c[383339,383352] [2021-11-23 17:41:51,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:41:51,517 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:41:53,033 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_d0e45d3a-3958-49f6-93cf-e7dda3475519/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c[380323,380336] [2021-11-23 17:41:53,038 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_d0e45d3a-3958-49f6-93cf-e7dda3475519/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c[383339,383352] [2021-11-23 17:41:53,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:41:53,203 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:41:53,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:53 WrapperNode [2021-11-23 17:41:53,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:41:53,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:41:53,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:41:53,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:41:53,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:53" (1/1) ... [2021-11-23 17:41:53,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:53" (1/1) ... [2021-11-23 17:41:53,987 INFO L137 Inliner]: procedures = 71, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13213 [2021-11-23 17:41:53,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:41:53,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:41:53,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:41:53,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:41:53,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:53" (1/1) ... [2021-11-23 17:41:54,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:53" (1/1) ... [2021-11-23 17:41:54,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:53" (1/1) ... [2021-11-23 17:41:54,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:53" (1/1) ... [2021-11-23 17:41:54,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:53" (1/1) ... [2021-11-23 17:41:54,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:53" (1/1) ... [2021-11-23 17:41:54,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:53" (1/1) ... [2021-11-23 17:41:54,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:41:54,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:41:54,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:41:54,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:41:54,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:53" (1/1) ... [2021-11-23 17:41:54,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:41:54,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:41:54,807 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:41:54,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:41:54,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:41:54,917 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:41:54,918 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:41:54,918 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:41:54,918 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:41:54,918 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:41:54,918 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:41:54,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:41:54,919 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:41:54,919 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:41:54,919 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:41:54,919 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:41:54,919 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:41:54,920 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:41:54,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:41:54,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:41:55,207 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:41:55,210 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:42:08,604 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:42:08,650 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:42:08,651 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-23 17:42:08,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:42:08 BoogieIcfgContainer [2021-11-23 17:42:08,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:42:08,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:42:08,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:42:08,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:42:08,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:41:47" (1/3) ... [2021-11-23 17:42:08,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342815da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:42:08, skipping insertion in model container [2021-11-23 17:42:08,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:53" (2/3) ... [2021-11-23 17:42:08,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342815da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:42:08, skipping insertion in model container [2021-11-23 17:42:08,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:42:08" (3/3) ... [2021-11-23 17:42:08,667 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.13.cil-2.c [2021-11-23 17:42:08,674 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:42:08,674 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 17:42:08,760 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:42:08,772 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 17:42:08,772 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 17:42:08,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-11-23 17:42:08,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-23 17:42:08,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:42:08,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:42:08,888 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:42:08,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:42:08,893 INFO L85 PathProgramCache]: Analyzing trace with hash -521467325, now seen corresponding path program 1 times [2021-11-23 17:42:08,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:42:08,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053622560] [2021-11-23 17:42:08,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:42:08,912 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:42:08,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:42:08,918 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:42:08,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:42:09,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:42:09,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:42:09,230 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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 17:42:09,241 INFO L158 Benchmark]: Toolchain (without parser) took 21804.89ms. Allocated memory was 75.5MB in the beginning and 1.1GB in the end (delta: 981.5MB). Free memory was 35.7MB in the beginning and 788.7MB in the end (delta: -753.0MB). Peak memory consumption was 226.8MB. Max. memory is 16.1GB. [2021-11-23 17:42:09,242 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 52.4MB. Free memory was 33.3MB in the beginning and 33.3MB in the end (delta: 41.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:42:09,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5767.72ms. Allocated memory was 75.5MB in the beginning and 172.0MB in the end (delta: 96.5MB). Free memory was 35.5MB in the beginning and 71.1MB in the end (delta: -35.6MB). Peak memory consumption was 99.9MB. Max. memory is 16.1GB. [2021-11-23 17:42:09,245 INFO L158 Benchmark]: Boogie Procedure Inliner took 783.76ms. Allocated memory was 172.0MB in the beginning and 264.2MB in the end (delta: 92.3MB). Free memory was 71.1MB in the beginning and 129.3MB in the end (delta: -58.2MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2021-11-23 17:42:09,246 INFO L158 Benchmark]: Boogie Preprocessor took 735.39ms. Allocated memory was 264.2MB in the beginning and 528.5MB in the end (delta: 264.2MB). Free memory was 129.3MB in the beginning and 386.3MB in the end (delta: -257.0MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2021-11-23 17:42:09,247 INFO L158 Benchmark]: RCFGBuilder took 13931.19ms. Allocated memory was 528.5MB in the beginning and 1.1GB in the end (delta: 528.5MB). Free memory was 386.3MB in the beginning and 816.0MB in the end (delta: -429.7MB). Peak memory consumption was 330.5MB. Max. memory is 16.1GB. [2021-11-23 17:42:09,248 INFO L158 Benchmark]: TraceAbstraction took 578.60ms. Allocated memory is still 1.1GB. Free memory was 815.0MB in the beginning and 788.7MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-23 17:42:09,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 52.4MB. Free memory was 33.3MB in the beginning and 33.3MB in the end (delta: 41.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5767.72ms. Allocated memory was 75.5MB in the beginning and 172.0MB in the end (delta: 96.5MB). Free memory was 35.5MB in the beginning and 71.1MB in the end (delta: -35.6MB). Peak memory consumption was 99.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 783.76ms. Allocated memory was 172.0MB in the beginning and 264.2MB in the end (delta: 92.3MB). Free memory was 71.1MB in the beginning and 129.3MB in the end (delta: -58.2MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 735.39ms. Allocated memory was 264.2MB in the beginning and 528.5MB in the end (delta: 264.2MB). Free memory was 129.3MB in the beginning and 386.3MB in the end (delta: -257.0MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. * RCFGBuilder took 13931.19ms. Allocated memory was 528.5MB in the beginning and 1.1GB in the end (delta: 528.5MB). Free memory was 386.3MB in the beginning and 816.0MB in the end (delta: -429.7MB). Peak memory consumption was 330.5MB. Max. memory is 16.1GB. * TraceAbstraction took 578.60ms. Allocated memory is still 1.1GB. Free memory was 815.0MB in the beginning and 788.7MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:42:09,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e45d3a-3958-49f6-93cf-e7dda3475519/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