./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.06.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_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/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_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.06.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/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_ecd49785-2846-4c87-9e60-ab416ab88c6d/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 306f27715421bb9e01ba3845cf0d248e2328487b897edb7780679dfca2048140 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:16:33,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:16:33,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:16:33,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:16:33,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:16:33,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:16:33,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:16:33,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:16:33,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:16:33,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:16:33,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:16:33,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:16:33,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:16:33,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:16:33,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:16:33,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:16:33,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:16:33,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:16:33,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:16:33,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:16:33,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:16:33,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:16:33,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:16:33,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:16:33,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:16:33,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:16:33,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:16:33,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:16:33,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:16:33,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:16:33,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:16:33,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:16:33,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:16:33,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:16:33,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:16:33,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:16:33,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:16:33,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:16:33,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:16:33,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:16:33,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:16:33,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:16:33,380 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:16:33,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:16:33,381 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:16:33,381 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:16:33,390 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:16:33,390 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:16:33,391 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:16:33,391 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:16:33,391 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:16:33,392 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:16:33,393 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:16:33,394 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:16:33,394 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:16:33,394 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:16:33,394 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:16:33,395 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:16:33,395 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:16:33,395 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:16:33,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:16:33,397 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:16:33,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:16:33,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:16:33,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:16:33,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:16:33,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:16:33,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:16:33,400 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:16:33,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:16:33,401 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:16:33,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:16:33,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:16:33,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:16:33,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:16:33,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:16:33,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:16:33,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:16:33,403 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:16:33,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:16:33,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:16:33,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:16:33,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:16:33,404 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_ecd49785-2846-4c87-9e60-ab416ab88c6d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 306f27715421bb9e01ba3845cf0d248e2328487b897edb7780679dfca2048140 [2021-11-23 17:16:33,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:16:33,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:16:33,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:16:33,791 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:16:33,792 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:16:33,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.06.cil-2.c [2021-11-23 17:16:33,857 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/data/1d477427e/6ffb70d15ec4462883774fbd28e939a7/FLAGd945a28a1 [2021-11-23 17:16:34,934 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:16:34,935 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/sv-benchmarks/c/combinations/Problem05_label44+token_ring.06.cil-2.c [2021-11-23 17:16:34,993 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/data/1d477427e/6ffb70d15ec4462883774fbd28e939a7/FLAGd945a28a1 [2021-11-23 17:16:35,240 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/data/1d477427e/6ffb70d15ec4462883774fbd28e939a7 [2021-11-23 17:16:35,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:16:35,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:16:35,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:16:35,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:16:35,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:16:35,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:16:35" (1/1) ... [2021-11-23 17:16:35,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cded15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:16:35, skipping insertion in model container [2021-11-23 17:16:35,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:16:35" (1/1) ... [2021-11-23 17:16:35,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:16:35,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:16:38,009 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_ecd49785-2846-4c87-9e60-ab416ab88c6d/sv-benchmarks/c/combinations/Problem05_label44+token_ring.06.cil-2.c[377340,377353] [2021-11-23 17:16:38,052 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_ecd49785-2846-4c87-9e60-ab416ab88c6d/sv-benchmarks/c/combinations/Problem05_label44+token_ring.06.cil-2.c[383339,383352] [2021-11-23 17:16:38,362 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:16:38,380 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:16:39,752 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_ecd49785-2846-4c87-9e60-ab416ab88c6d/sv-benchmarks/c/combinations/Problem05_label44+token_ring.06.cil-2.c[377340,377353] [2021-11-23 17:16:39,773 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_ecd49785-2846-4c87-9e60-ab416ab88c6d/sv-benchmarks/c/combinations/Problem05_label44+token_ring.06.cil-2.c[383339,383352] [2021-11-23 17:16:39,794 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:16:39,878 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:16:39,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:16:39 WrapperNode [2021-11-23 17:16:39,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:16:39,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:16:39,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:16:39,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:16:39,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:16:39" (1/1) ... [2021-11-23 17:16:40,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:16:39" (1/1) ... [2021-11-23 17:16:40,640 INFO L137 Inliner]: procedures = 56, calls = 59, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 12851 [2021-11-23 17:16:40,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:16:40,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:16:40,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:16:40,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:16:40,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:16:39" (1/1) ... [2021-11-23 17:16:40,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:16:39" (1/1) ... [2021-11-23 17:16:40,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:16:39" (1/1) ... [2021-11-23 17:16:40,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:16:39" (1/1) ... [2021-11-23 17:16:41,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:16:39" (1/1) ... [2021-11-23 17:16:41,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:16:39" (1/1) ... [2021-11-23 17:16:41,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:16:39" (1/1) ... [2021-11-23 17:16:41,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:16:41,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:16:41,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:16:41,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:16:41,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:16:39" (1/1) ... [2021-11-23 17:16:41,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:16:41,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:16:41,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:16:41,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:16:41,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:16:41,531 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:16:41,532 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:16:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:16:41,532 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:16:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:16:41,532 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:16:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:16:41,533 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:16:41,533 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:16:41,533 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:16:41,533 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:16:41,533 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:16:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:16:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:16:41,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:16:41,775 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:16:41,777 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:16:50,762 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:16:50,911 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 17:16:50,923 INFO L158 Benchmark]: Toolchain (without parser) took 15672.91ms. Allocated memory was 96.5MB in the beginning and 973.1MB in the end (delta: 876.6MB). Free memory was 46.2MB in the beginning and 532.9MB in the end (delta: -486.6MB). Peak memory consumption was 390.9MB. Max. memory is 16.1GB. [2021-11-23 17:16:50,924 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory was 75.2MB in the beginning and 75.1MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:16:50,926 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4628.03ms. Allocated memory was 96.5MB in the beginning and 178.3MB in the end (delta: 81.8MB). Free memory was 46.2MB in the beginning and 59.3MB in the end (delta: -13.1MB). Peak memory consumption was 80.2MB. Max. memory is 16.1GB. [2021-11-23 17:16:50,928 INFO L158 Benchmark]: Boogie Procedure Inliner took 761.35ms. Allocated memory was 178.3MB in the beginning and 297.8MB in the end (delta: 119.5MB). Free memory was 59.3MB in the beginning and 152.4MB in the end (delta: -93.1MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2021-11-23 17:16:50,929 INFO L158 Benchmark]: Boogie Preprocessor took 768.63ms. Allocated memory is still 297.8MB. Free memory was 152.4MB in the beginning and 152.1MB in the end (delta: 275.0kB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2021-11-23 17:16:50,930 INFO L158 Benchmark]: RCFGBuilder took 9508.21ms. Allocated memory was 297.8MB in the beginning and 973.1MB in the end (delta: 675.3MB). Free memory was 152.1MB in the beginning and 532.9MB in the end (delta: -380.8MB). Peak memory consumption was 293.9MB. Max. memory is 16.1GB. [2021-11-23 17:16:50,940 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory was 75.2MB in the beginning and 75.1MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4628.03ms. Allocated memory was 96.5MB in the beginning and 178.3MB in the end (delta: 81.8MB). Free memory was 46.2MB in the beginning and 59.3MB in the end (delta: -13.1MB). Peak memory consumption was 80.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 761.35ms. Allocated memory was 178.3MB in the beginning and 297.8MB in the end (delta: 119.5MB). Free memory was 59.3MB in the beginning and 152.4MB in the end (delta: -93.1MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 768.63ms. Allocated memory is still 297.8MB. Free memory was 152.4MB in the beginning and 152.1MB in the end (delta: 275.0kB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * RCFGBuilder took 9508.21ms. Allocated memory was 297.8MB in the beginning and 973.1MB in the end (delta: 675.3MB). Free memory was 152.1MB in the beginning and 532.9MB in the end (delta: -380.8MB). Peak memory consumption was 293.9MB. 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 17:16:51,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/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_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/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_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.06.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/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_ecd49785-2846-4c87-9e60-ab416ab88c6d/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 306f27715421bb9e01ba3845cf0d248e2328487b897edb7780679dfca2048140 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:16:54,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:16:54,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:16:54,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:16:54,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:16:54,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:16:54,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:16:54,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:16:54,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:16:54,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:16:54,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:16:54,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:16:54,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:16:54,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:16:54,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:16:54,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:16:54,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:16:54,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:16:54,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:16:54,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:16:54,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:16:54,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:16:54,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:16:54,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:16:54,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:16:54,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:16:54,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:16:54,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:16:54,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:16:54,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:16:54,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:16:54,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:16:54,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:16:54,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:16:54,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:16:54,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:16:54,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:16:54,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:16:54,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:16:54,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:16:54,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:16:54,221 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:16:54,256 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:16:54,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:16:54,257 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:16:54,258 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:16:54,258 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:16:54,259 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:16:54,259 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:16:54,260 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:16:54,260 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:16:54,260 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:16:54,260 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:16:54,261 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:16:54,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:16:54,262 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:16:54,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:16:54,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:16:54,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:16:54,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:16:54,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:16:54,264 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:16:54,264 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:16:54,265 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:16:54,265 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:16:54,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:16:54,266 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:16:54,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:16:54,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:16:54,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:16:54,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:16:54,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:16:54,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:16:54,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:16:54,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:16:54,268 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:16:54,269 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:16:54,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:16:54,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:16:54,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:16:54,270 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_ecd49785-2846-4c87-9e60-ab416ab88c6d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 306f27715421bb9e01ba3845cf0d248e2328487b897edb7780679dfca2048140 [2021-11-23 17:16:54,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:16:54,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:16:54,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:16:54,812 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:16:54,813 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:16:54,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.06.cil-2.c [2021-11-23 17:16:54,900 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/data/628aa415a/bb212c7c09014241963c90f8066e3275/FLAG9671d8631 [2021-11-23 17:16:56,162 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:16:56,162 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/sv-benchmarks/c/combinations/Problem05_label44+token_ring.06.cil-2.c [2021-11-23 17:16:56,223 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/data/628aa415a/bb212c7c09014241963c90f8066e3275/FLAG9671d8631 [2021-11-23 17:16:56,410 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/data/628aa415a/bb212c7c09014241963c90f8066e3275 [2021-11-23 17:16:56,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:16:56,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:16:56,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:16:56,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:16:56,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:16:56,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:16:56" (1/1) ... [2021-11-23 17:16:56,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cea9e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:16:56, skipping insertion in model container [2021-11-23 17:16:56,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:16:56" (1/1) ... [2021-11-23 17:16:56,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:16:56,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:16:59,638 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_ecd49785-2846-4c87-9e60-ab416ab88c6d/sv-benchmarks/c/combinations/Problem05_label44+token_ring.06.cil-2.c[377340,377353] [2021-11-23 17:16:59,761 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_ecd49785-2846-4c87-9e60-ab416ab88c6d/sv-benchmarks/c/combinations/Problem05_label44+token_ring.06.cil-2.c[383339,383352] [2021-11-23 17:17:00,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:17:00,085 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:17:01,889 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_ecd49785-2846-4c87-9e60-ab416ab88c6d/sv-benchmarks/c/combinations/Problem05_label44+token_ring.06.cil-2.c[377340,377353] [2021-11-23 17:17:01,903 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_ecd49785-2846-4c87-9e60-ab416ab88c6d/sv-benchmarks/c/combinations/Problem05_label44+token_ring.06.cil-2.c[383339,383352] [2021-11-23 17:17:01,925 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:17:02,034 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:17:02,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:02 WrapperNode [2021-11-23 17:17:02,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:17:02,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:17:02,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:17:02,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:17:02,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:02" (1/1) ... [2021-11-23 17:17:02,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:02" (1/1) ... [2021-11-23 17:17:02,796 INFO L137 Inliner]: procedures = 57, calls = 59, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 12821 [2021-11-23 17:17:02,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:17:02,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:17:02,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:17:02,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:17:02,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:02" (1/1) ... [2021-11-23 17:17:02,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:02" (1/1) ... [2021-11-23 17:17:02,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:02" (1/1) ... [2021-11-23 17:17:02,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:02" (1/1) ... [2021-11-23 17:17:03,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:02" (1/1) ... [2021-11-23 17:17:03,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:02" (1/1) ... [2021-11-23 17:17:03,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:02" (1/1) ... [2021-11-23 17:17:03,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:17:03,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:17:03,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:17:03,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:17:03,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:02" (1/1) ... [2021-11-23 17:17:03,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:17:03,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:17:03,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:17:03,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:17:03,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:17:03,986 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:17:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:17:03,986 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:17:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:17:03,987 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:17:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:17:03,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:17:03,987 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:17:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:17:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:17:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:17:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:17:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:17:03,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:17:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:17:04,186 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:17:04,188 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:17:16,947 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:17:16,985 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:17:16,985 INFO L301 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-23 17:17:16,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:17:16 BoogieIcfgContainer [2021-11-23 17:17:16,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:17:16,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:17:16,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:17:16,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:17:16,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:16:56" (1/3) ... [2021-11-23 17:17:16,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348dfa9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:17:16, skipping insertion in model container [2021-11-23 17:17:16,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:02" (2/3) ... [2021-11-23 17:17:17,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348dfa9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:17:16, skipping insertion in model container [2021-11-23 17:17:17,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:17:16" (3/3) ... [2021-11-23 17:17:17,002 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.06.cil-2.c [2021-11-23 17:17:17,008 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:17:17,009 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 17:17:17,078 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:17:17,087 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 17:17:17,087 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 17:17:17,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 2415 states, 2386 states have (on average 1.8512154233025986) internal successors, (4417), 2389 states have internal predecessors, (4417), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-23 17:17:17,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-23 17:17:17,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:17:17,210 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] [2021-11-23 17:17:17,211 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:17:17,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:17:17,218 INFO L85 PathProgramCache]: Analyzing trace with hash -72843931, now seen corresponding path program 1 times [2021-11-23 17:17:17,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:17:17,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864292576] [2021-11-23 17:17:17,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:17:17,238 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:17:17,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:17:17,243 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:17:17,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:17:17,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:17:17,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:17:17,534 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 17:17:17,539 INFO L158 Benchmark]: Toolchain (without parser) took 21119.08ms. Allocated memory was 75.5MB in the beginning and 859.8MB in the end (delta: 784.3MB). Free memory was 34.3MB in the beginning and 480.6MB in the end (delta: -446.3MB). Peak memory consumption was 336.5MB. Max. memory is 16.1GB. [2021-11-23 17:17:17,540 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 54.5MB. Free memory was 34.7MB in the beginning and 34.7MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:17:17,547 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5613.62ms. Allocated memory was 75.5MB in the beginning and 220.2MB in the end (delta: 144.7MB). Free memory was 34.1MB in the beginning and 107.5MB in the end (delta: -73.4MB). Peak memory consumption was 79.5MB. Max. memory is 16.1GB. [2021-11-23 17:17:17,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 761.16ms. Allocated memory is still 220.2MB. Free memory was 107.5MB in the beginning and 88.8MB in the end (delta: 18.7MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2021-11-23 17:17:17,549 INFO L158 Benchmark]: Boogie Preprocessor took 1024.13ms. Allocated memory was 220.2MB in the beginning and 440.4MB in the end (delta: 220.2MB). Free memory was 88.8MB in the beginning and 290.8MB in the end (delta: -202.0MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2021-11-23 17:17:17,550 INFO L158 Benchmark]: RCFGBuilder took 13167.52ms. Allocated memory was 440.4MB in the beginning and 859.8MB in the end (delta: 419.4MB). Free memory was 290.8MB in the beginning and 505.8MB in the end (delta: -215.0MB). Peak memory consumption was 270.5MB. Max. memory is 16.1GB. [2021-11-23 17:17:17,551 INFO L158 Benchmark]: TraceAbstraction took 543.14ms. Allocated memory is still 859.8MB. Free memory was 504.7MB in the beginning and 480.6MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-23 17:17:17,565 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 54.5MB. Free memory was 34.7MB in the beginning and 34.7MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5613.62ms. Allocated memory was 75.5MB in the beginning and 220.2MB in the end (delta: 144.7MB). Free memory was 34.1MB in the beginning and 107.5MB in the end (delta: -73.4MB). Peak memory consumption was 79.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 761.16ms. Allocated memory is still 220.2MB. Free memory was 107.5MB in the beginning and 88.8MB in the end (delta: 18.7MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1024.13ms. Allocated memory was 220.2MB in the beginning and 440.4MB in the end (delta: 220.2MB). Free memory was 88.8MB in the beginning and 290.8MB in the end (delta: -202.0MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. * RCFGBuilder took 13167.52ms. Allocated memory was 440.4MB in the beginning and 859.8MB in the end (delta: 419.4MB). Free memory was 290.8MB in the beginning and 505.8MB in the end (delta: -215.0MB). Peak memory consumption was 270.5MB. Max. memory is 16.1GB. * TraceAbstraction took 543.14ms. Allocated memory is still 859.8MB. Free memory was 504.7MB in the beginning and 480.6MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. 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 17:17:17,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecd49785-2846-4c87-9e60-ab416ab88c6d/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