./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.03.cil-1.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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.03.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/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 7ec37a095871269c822e7d35e6d840f2de134a68f657807281a5c0e96980df26 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:46:56,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:46:56,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:46:56,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:46:56,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:46:56,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:46:56,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:46:56,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:46:56,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:46:56,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:46:56,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:46:56,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:46:56,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:46:56,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:46:56,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:46:56,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:46:56,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:46:56,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:46:56,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:46:56,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:46:56,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:46:56,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:46:56,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:46:56,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:46:56,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:46:56,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:46:56,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:46:56,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:46:56,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:46:56,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:46:56,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:46:56,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:46:56,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:46:56,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:46:56,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:46:56,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:46:56,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:46:56,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:46:56,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:46:56,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:46:56,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:46:56,597 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:46:56,660 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:46:56,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:46:56,669 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:46:56,669 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:46:56,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:46:56,671 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:46:56,671 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:46:56,672 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:46:56,672 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:46:56,672 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:46:56,674 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:46:56,674 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:46:56,675 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:46:56,675 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:46:56,675 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:46:56,676 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:46:56,676 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:46:56,676 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:46:56,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:46:56,678 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:46:56,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:46:56,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:46:56,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:46:56,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:46:56,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:46:56,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:46:56,682 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:46:56,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:46:56,683 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:46:56,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:46:56,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:46:56,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:46:56,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:56,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:46:56,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:46:56,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:46:56,685 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:46:56,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:46:56,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:46:56,686 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:46:56,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:46:56,687 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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ec37a095871269c822e7d35e6d840f2de134a68f657807281a5c0e96980df26 [2021-11-23 16:46:57,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:46:57,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:46:57,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:46:57,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:46:57,077 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:46:57,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.03.cil-1.c [2021-11-23 16:46:57,157 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/data/f372a2388/fd0c58cdd9214b309bdc84925b7b607b/FLAG5b593be33 [2021-11-23 16:46:58,392 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:46:58,393 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/sv-benchmarks/c/combinations/Problem05_label45+token_ring.03.cil-1.c [2021-11-23 16:46:58,460 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/data/f372a2388/fd0c58cdd9214b309bdc84925b7b607b/FLAG5b593be33 [2021-11-23 16:46:58,568 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/data/f372a2388/fd0c58cdd9214b309bdc84925b7b607b [2021-11-23 16:46:58,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:46:58,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:46:58,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:58,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:46:58,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:46:58,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:58" (1/1) ... [2021-11-23 16:46:58,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd41d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:58, skipping insertion in model container [2021-11-23 16:46:58,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:58" (1/1) ... [2021-11-23 16:46:58,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:46:58,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:47:02,078 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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/sv-benchmarks/c/combinations/Problem05_label45+token_ring.03.cil-1.c[380323,380336] [2021-11-23 16:47:02,118 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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/sv-benchmarks/c/combinations/Problem05_label45+token_ring.03.cil-1.c[383339,383352] [2021-11-23 16:47:02,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:02,389 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:47:03,882 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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/sv-benchmarks/c/combinations/Problem05_label45+token_ring.03.cil-1.c[380323,380336] [2021-11-23 16:47:03,890 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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/sv-benchmarks/c/combinations/Problem05_label45+token_ring.03.cil-1.c[383339,383352] [2021-11-23 16:47:03,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:04,046 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:47:04,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:04 WrapperNode [2021-11-23 16:47:04,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:04,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:04,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:47:04,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:47:04,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:04" (1/1) ... [2021-11-23 16:47:04,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:04" (1/1) ... [2021-11-23 16:47:04,814 INFO L137 Inliner]: procedures = 50, calls = 51, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 12682 [2021-11-23 16:47:04,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:04,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:47:04,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:47:04,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:47:04,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:04" (1/1) ... [2021-11-23 16:47:04,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:04" (1/1) ... [2021-11-23 16:47:04,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:04" (1/1) ... [2021-11-23 16:47:04,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:04" (1/1) ... [2021-11-23 16:47:05,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:04" (1/1) ... [2021-11-23 16:47:05,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:04" (1/1) ... [2021-11-23 16:47:05,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:04" (1/1) ... [2021-11-23 16:47:05,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:47:05,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:47:05,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:47:05,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:47:05,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:04" (1/1) ... [2021-11-23 16:47:05,715 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:05,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:47:05,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:47:05,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:47:05,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:47:05,807 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 16:47:05,807 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 16:47:05,807 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 16:47:05,808 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 16:47:05,808 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 16:47:05,808 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 16:47:05,808 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-11-23 16:47:05,808 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-11-23 16:47:05,809 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 16:47:05,809 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 16:47:05,809 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 16:47:05,859 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 16:47:05,859 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 16:47:05,859 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 16:47:05,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:47:05,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:47:05,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:47:05,982 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:47:05,984 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:47:15,915 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:47:16,016 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 16:47:16,023 INFO L158 Benchmark]: Toolchain (without parser) took 17445.26ms. Allocated memory was 113.2MB in the beginning and 922.7MB in the end (delta: 809.5MB). Free memory was 71.3MB in the beginning and 568.3MB in the end (delta: -497.1MB). Peak memory consumption was 389.2MB. Max. memory is 16.1GB. [2021-11-23 16:47:16,024 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 113.2MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:47:16,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5468.50ms. Allocated memory was 113.2MB in the beginning and 199.2MB in the end (delta: 86.0MB). Free memory was 70.8MB in the beginning and 79.1MB in the end (delta: -8.2MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. [2021-11-23 16:47:16,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 766.96ms. Allocated memory was 199.2MB in the beginning and 302.0MB in the end (delta: 102.8MB). Free memory was 79.1MB in the beginning and 164.9MB in the end (delta: -85.9MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2021-11-23 16:47:16,027 INFO L158 Benchmark]: Boogie Preprocessor took 886.83ms. Allocated memory is still 302.0MB. Free memory was 164.9MB in the beginning and 149.8MB in the end (delta: 15.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2021-11-23 16:47:16,029 INFO L158 Benchmark]: RCFGBuilder took 10316.39ms. Allocated memory was 302.0MB in the beginning and 922.7MB in the end (delta: 620.8MB). Free memory was 149.6MB in the beginning and 568.3MB in the end (delta: -418.7MB). Peak memory consumption was 283.1MB. Max. memory is 16.1GB. [2021-11-23 16:47:16,033 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 113.2MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5468.50ms. Allocated memory was 113.2MB in the beginning and 199.2MB in the end (delta: 86.0MB). Free memory was 70.8MB in the beginning and 79.1MB in the end (delta: -8.2MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 766.96ms. Allocated memory was 199.2MB in the beginning and 302.0MB in the end (delta: 102.8MB). Free memory was 79.1MB in the beginning and 164.9MB in the end (delta: -85.9MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 886.83ms. Allocated memory is still 302.0MB. Free memory was 164.9MB in the beginning and 149.8MB in the end (delta: 15.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * RCFGBuilder took 10316.39ms. Allocated memory was 302.0MB in the beginning and 922.7MB in the end (delta: 620.8MB). Free memory was 149.6MB in the beginning and 568.3MB in the end (delta: -418.7MB). Peak memory consumption was 283.1MB. 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 16:47:16,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.03.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/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 7ec37a095871269c822e7d35e6d840f2de134a68f657807281a5c0e96980df26 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:47:19,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:47:19,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:47:19,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:47:19,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:47:19,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:47:19,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:47:19,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:47:19,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:47:19,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:47:19,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:47:19,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:47:19,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:47:19,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:47:19,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:47:19,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:47:19,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:47:19,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:47:19,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:47:19,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:47:19,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:47:19,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:47:19,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:47:19,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:47:19,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:47:19,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:47:19,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:47:19,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:47:19,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:47:19,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:47:19,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:47:19,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:47:19,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:47:19,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:47:19,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:47:19,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:47:19,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:47:19,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:47:19,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:47:19,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:47:19,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:47:19,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:47:19,342 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:47:19,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:47:19,343 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:47:19,344 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:47:19,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:47:19,345 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:47:19,345 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:47:19,345 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:47:19,346 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:47:19,346 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:47:19,347 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:47:19,347 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:47:19,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:47:19,349 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:47:19,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:47:19,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:47:19,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:47:19,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:47:19,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:47:19,351 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:47:19,351 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:47:19,351 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:47:19,351 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:47:19,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:47:19,352 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:47:19,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:47:19,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:47:19,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:47:19,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:47:19,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:19,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:47:19,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:47:19,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:47:19,354 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:47:19,354 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:47:19,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:47:19,355 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:47:19,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:47:19,356 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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ec37a095871269c822e7d35e6d840f2de134a68f657807281a5c0e96980df26 [2021-11-23 16:47:19,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:47:19,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:47:19,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:47:19,879 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:47:19,880 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:47:19,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.03.cil-1.c [2021-11-23 16:47:19,962 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/data/900113c87/a9b33c516f1b4e2e969dcbf0aad32d6b/FLAG2f8ae7136 [2021-11-23 16:47:21,387 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:47:21,388 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/sv-benchmarks/c/combinations/Problem05_label45+token_ring.03.cil-1.c [2021-11-23 16:47:21,473 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/data/900113c87/a9b33c516f1b4e2e969dcbf0aad32d6b/FLAG2f8ae7136 [2021-11-23 16:47:21,949 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/data/900113c87/a9b33c516f1b4e2e969dcbf0aad32d6b [2021-11-23 16:47:21,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:47:21,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:47:21,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:21,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:47:21,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:47:21,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:21" (1/1) ... [2021-11-23 16:47:21,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@201d049c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:21, skipping insertion in model container [2021-11-23 16:47:21,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:21" (1/1) ... [2021-11-23 16:47:21,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:47:22,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:47:25,293 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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/sv-benchmarks/c/combinations/Problem05_label45+token_ring.03.cil-1.c[380323,380336] [2021-11-23 16:47:25,330 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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/sv-benchmarks/c/combinations/Problem05_label45+token_ring.03.cil-1.c[383339,383352] [2021-11-23 16:47:25,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:25,623 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:47:27,312 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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/sv-benchmarks/c/combinations/Problem05_label45+token_ring.03.cil-1.c[380323,380336] [2021-11-23 16:47:27,320 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_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/sv-benchmarks/c/combinations/Problem05_label45+token_ring.03.cil-1.c[383339,383352] [2021-11-23 16:47:27,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:27,456 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:47:27,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:27 WrapperNode [2021-11-23 16:47:27,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:27,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:27,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:47:27,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:47:27,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:27" (1/1) ... [2021-11-23 16:47:27,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:27" (1/1) ... [2021-11-23 16:47:28,224 INFO L137 Inliner]: procedures = 51, calls = 51, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 12657 [2021-11-23 16:47:28,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:28,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:47:28,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:47:28,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:47:28,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:27" (1/1) ... [2021-11-23 16:47:28,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:27" (1/1) ... [2021-11-23 16:47:28,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:27" (1/1) ... [2021-11-23 16:47:28,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:27" (1/1) ... [2021-11-23 16:47:28,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:27" (1/1) ... [2021-11-23 16:47:28,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:27" (1/1) ... [2021-11-23 16:47:28,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:27" (1/1) ... [2021-11-23 16:47:29,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:47:29,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:47:29,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:47:29,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:47:29,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:27" (1/1) ... [2021-11-23 16:47:29,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:29,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:47:29,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:47:29,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:47:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:47:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 16:47:29,278 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 16:47:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 16:47:29,278 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 16:47:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 16:47:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 16:47:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:47:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-11-23 16:47:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-11-23 16:47:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 16:47:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 16:47:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 16:47:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 16:47:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 16:47:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 16:47:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:47:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:47:29,442 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:47:29,465 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:47:40,091 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:47:40,131 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:47:40,131 INFO L301 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-23 16:47:40,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:47:40 BoogieIcfgContainer [2021-11-23 16:47:40,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:47:40,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:47:40,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:47:40,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:47:40,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:47:21" (1/3) ... [2021-11-23 16:47:40,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a79a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:47:40, skipping insertion in model container [2021-11-23 16:47:40,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:27" (2/3) ... [2021-11-23 16:47:40,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a79a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:47:40, skipping insertion in model container [2021-11-23 16:47:40,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:47:40" (3/3) ... [2021-11-23 16:47:40,146 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.03.cil-1.c [2021-11-23 16:47:40,151 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:47:40,151 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 16:47:40,218 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:47:40,225 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 16:47:40,226 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 16:47:40,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 2348 states, 2319 states have (on average 1.8559724018973696) internal successors, (4304), 2324 states have internal predecessors, (4304), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-23 16:47:40,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 16:47:40,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:47:40,312 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] [2021-11-23 16:47:40,313 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:47:40,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:47:40,319 INFO L85 PathProgramCache]: Analyzing trace with hash 520182233, now seen corresponding path program 1 times [2021-11-23 16:47:40,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:47:40,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468144652] [2021-11-23 16:47:40,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:47:40,335 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:47:40,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:47:40,341 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:47:40,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 16:47:40,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 16:47:40,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:47:40,615 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 16:47:40,622 INFO L158 Benchmark]: Toolchain (without parser) took 18664.22ms. Allocated memory was 83.9MB in the beginning and 841.0MB in the end (delta: 757.1MB). Free memory was 37.7MB in the beginning and 393.9MB in the end (delta: -356.2MB). Peak memory consumption was 400.3MB. Max. memory is 16.1GB. [2021-11-23 16:47:40,624 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 83.9MB. Free memory was 66.2MB in the beginning and 66.1MB in the end (delta: 75.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:47:40,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5495.36ms. Allocated memory was 83.9MB in the beginning and 169.9MB in the end (delta: 86.0MB). Free memory was 37.5MB in the beginning and 46.6MB in the end (delta: -9.1MB). Peak memory consumption was 83.0MB. Max. memory is 16.1GB. [2021-11-23 16:47:40,627 INFO L158 Benchmark]: Boogie Procedure Inliner took 766.81ms. Allocated memory was 169.9MB in the beginning and 253.8MB in the end (delta: 83.9MB). Free memory was 46.6MB in the beginning and 120.3MB in the end (delta: -73.7MB). Peak memory consumption was 62.5MB. Max. memory is 16.1GB. [2021-11-23 16:47:40,628 INFO L158 Benchmark]: Boogie Preprocessor took 884.12ms. Allocated memory is still 253.8MB. Free memory was 120.3MB in the beginning and 96.5MB in the end (delta: 23.8MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2021-11-23 16:47:40,636 INFO L158 Benchmark]: RCFGBuilder took 11024.24ms. Allocated memory was 253.8MB in the beginning and 841.0MB in the end (delta: 587.2MB). Free memory was 96.5MB in the beginning and 419.1MB in the end (delta: -322.6MB). Peak memory consumption was 266.9MB. Max. memory is 16.1GB. [2021-11-23 16:47:40,637 INFO L158 Benchmark]: TraceAbstraction took 481.45ms. Allocated memory is still 841.0MB. Free memory was 418.0MB in the beginning and 393.9MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-23 16:47:40,647 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 83.9MB. Free memory was 66.2MB in the beginning and 66.1MB in the end (delta: 75.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5495.36ms. Allocated memory was 83.9MB in the beginning and 169.9MB in the end (delta: 86.0MB). Free memory was 37.5MB in the beginning and 46.6MB in the end (delta: -9.1MB). Peak memory consumption was 83.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 766.81ms. Allocated memory was 169.9MB in the beginning and 253.8MB in the end (delta: 83.9MB). Free memory was 46.6MB in the beginning and 120.3MB in the end (delta: -73.7MB). Peak memory consumption was 62.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 884.12ms. Allocated memory is still 253.8MB. Free memory was 120.3MB in the beginning and 96.5MB in the end (delta: 23.8MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * RCFGBuilder took 11024.24ms. Allocated memory was 253.8MB in the beginning and 841.0MB in the end (delta: 587.2MB). Free memory was 96.5MB in the beginning and 419.1MB in the end (delta: -322.6MB). Peak memory consumption was 266.9MB. Max. memory is 16.1GB. * TraceAbstraction took 481.45ms. Allocated memory is still 841.0MB. Free memory was 418.0MB in the beginning and 393.9MB in the end (delta: 24.1MB). 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 16:47:40,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca3cd500-1ab1-4d93-aa62-6b1e9c0607bf/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