./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label43+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_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/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_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.06.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/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_1d714bf6-6de0-42cd-8015-394e9172c8e2/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 d6bcae8fdfc31b6b7d4775dfad537e0ca42e395c3a990a218ee828052c4f57f7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:49:08,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:49:08,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:49:08,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:49:08,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:49:08,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:49:08,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:49:08,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:49:08,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:49:08,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:49:08,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:49:08,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:49:08,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:49:08,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:49:08,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:49:08,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:49:08,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:49:08,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:49:08,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:49:08,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:49:08,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:49:08,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:49:08,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:49:08,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:49:08,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:49:08,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:49:08,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:49:08,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:49:08,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:49:08,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:49:08,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:49:08,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:49:08,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:49:08,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:49:08,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:49:08,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:49:08,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:49:08,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:49:08,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:49:08,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:49:08,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:49:08,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:49:08,722 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:49:08,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:49:08,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:49:08,723 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:49:08,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:49:08,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:49:08,724 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:49:08,725 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:49:08,725 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:49:08,725 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:49:08,725 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:49:08,726 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:49:08,726 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:49:08,726 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:49:08,729 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:49:08,730 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:49:08,730 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:49:08,731 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:49:08,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:49:08,733 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:49:08,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:49:08,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:49:08,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:49:08,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:49:08,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:49:08,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:49:08,737 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:49:08,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:49:08,738 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:49:08,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:49:08,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:49:08,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:49:08,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:49:08,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:49:08,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:49:08,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:49:08,742 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:49:08,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:49:08,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:49:08,743 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:49:08,743 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:49:08,744 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_1d714bf6-6de0-42cd-8015-394e9172c8e2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6bcae8fdfc31b6b7d4775dfad537e0ca42e395c3a990a218ee828052c4f57f7 [2021-11-23 16:49:09,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:49:09,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:49:09,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:49:09,108 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:49:09,109 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:49:09,110 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.06.cil-2.c [2021-11-23 16:49:09,210 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/data/c1e3cfcbb/62b7bb6dbf224f48a0272a16a57cb157/FLAG2d6c9f666 [2021-11-23 16:49:10,340 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:49:10,341 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/sv-benchmarks/c/combinations/Problem05_label43+token_ring.06.cil-2.c [2021-11-23 16:49:10,406 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/data/c1e3cfcbb/62b7bb6dbf224f48a0272a16a57cb157/FLAG2d6c9f666 [2021-11-23 16:49:10,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/data/c1e3cfcbb/62b7bb6dbf224f48a0272a16a57cb157 [2021-11-23 16:49:10,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:49:10,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:49:10,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:49:10,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:49:10,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:49:10,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:49:10" (1/1) ... [2021-11-23 16:49:10,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24420b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:10, skipping insertion in model container [2021-11-23 16:49:10,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:49:10" (1/1) ... [2021-11-23 16:49:10,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:49:10,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:49:13,646 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_1d714bf6-6de0-42cd-8015-394e9172c8e2/sv-benchmarks/c/combinations/Problem05_label43+token_ring.06.cil-2.c[381679,381692] [2021-11-23 16:49:13,676 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_1d714bf6-6de0-42cd-8015-394e9172c8e2/sv-benchmarks/c/combinations/Problem05_label43+token_ring.06.cil-2.c[383339,383352] [2021-11-23 16:49:13,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:49:13,975 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:49:15,370 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_1d714bf6-6de0-42cd-8015-394e9172c8e2/sv-benchmarks/c/combinations/Problem05_label43+token_ring.06.cil-2.c[381679,381692] [2021-11-23 16:49:15,393 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_1d714bf6-6de0-42cd-8015-394e9172c8e2/sv-benchmarks/c/combinations/Problem05_label43+token_ring.06.cil-2.c[383339,383352] [2021-11-23 16:49:15,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:49:15,505 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:49:15,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:15 WrapperNode [2021-11-23 16:49:15,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:49:15,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:49:15,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:49:15,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:49:15,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:15" (1/1) ... [2021-11-23 16:49:15,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:15" (1/1) ... [2021-11-23 16:49:16,137 INFO L137 Inliner]: procedures = 56, calls = 59, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 12851 [2021-11-23 16:49:16,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:49:16,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:49:16,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:49:16,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:49:16,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:15" (1/1) ... [2021-11-23 16:49:16,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:15" (1/1) ... [2021-11-23 16:49:16,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:15" (1/1) ... [2021-11-23 16:49:16,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:15" (1/1) ... [2021-11-23 16:49:16,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:15" (1/1) ... [2021-11-23 16:49:16,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:15" (1/1) ... [2021-11-23 16:49:16,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:15" (1/1) ... [2021-11-23 16:49:16,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:49:16,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:49:16,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:49:16,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:49:16,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:15" (1/1) ... [2021-11-23 16:49:16,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:49:16,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:49:16,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:49:17,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:49:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:49:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 16:49:17,151 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 16:49:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 16:49:17,152 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 16:49:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 16:49:17,152 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 16:49:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 16:49:17,152 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 16:49:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 16:49:17,153 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 16:49:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 16:49:17,153 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 16:49:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:49:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:49:17,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:49:17,432 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:49:17,447 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:49:26,105 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:49:26,253 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 16:49:26,266 INFO L158 Benchmark]: Toolchain (without parser) took 15638.73ms. Allocated memory was 121.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 87.0MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 331.7MB. Max. memory is 16.1GB. [2021-11-23 16:49:26,268 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 88.1MB. Free memory was 67.8MB in the beginning and 67.7MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:49:26,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4878.89ms. Allocated memory was 121.6MB in the beginning and 276.8MB in the end (delta: 155.2MB). Free memory was 87.0MB in the beginning and 158.7MB in the end (delta: -71.8MB). Peak memory consumption was 98.0MB. Max. memory is 16.1GB. [2021-11-23 16:49:26,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 631.62ms. Allocated memory is still 276.8MB. Free memory was 158.7MB in the beginning and 146.1MB in the end (delta: 12.7MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. [2021-11-23 16:49:26,273 INFO L158 Benchmark]: Boogie Preprocessor took 767.87ms. Allocated memory was 276.8MB in the beginning and 553.6MB in the end (delta: 276.8MB). Free memory was 146.1MB in the beginning and 392.8MB in the end (delta: -246.7MB). Peak memory consumption was 85.7MB. Max. memory is 16.1GB. [2021-11-23 16:49:26,275 INFO L158 Benchmark]: RCFGBuilder took 9353.68ms. Allocated memory was 553.6MB in the beginning and 1.7GB in the end (delta: 1.1GB). Free memory was 392.8MB in the beginning and 1.4GB in the end (delta: -993.6MB). Peak memory consumption was 205.5MB. Max. memory is 16.1GB. [2021-11-23 16:49:26,286 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 88.1MB. Free memory was 67.8MB in the beginning and 67.7MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4878.89ms. Allocated memory was 121.6MB in the beginning and 276.8MB in the end (delta: 155.2MB). Free memory was 87.0MB in the beginning and 158.7MB in the end (delta: -71.8MB). Peak memory consumption was 98.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 631.62ms. Allocated memory is still 276.8MB. Free memory was 158.7MB in the beginning and 146.1MB in the end (delta: 12.7MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 767.87ms. Allocated memory was 276.8MB in the beginning and 553.6MB in the end (delta: 276.8MB). Free memory was 146.1MB in the beginning and 392.8MB in the end (delta: -246.7MB). Peak memory consumption was 85.7MB. Max. memory is 16.1GB. * RCFGBuilder took 9353.68ms. Allocated memory was 553.6MB in the beginning and 1.7GB in the end (delta: 1.1GB). Free memory was 392.8MB in the beginning and 1.4GB in the end (delta: -993.6MB). Peak memory consumption was 205.5MB. 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 16:49:26,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/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_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/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_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.06.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/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_1d714bf6-6de0-42cd-8015-394e9172c8e2/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 d6bcae8fdfc31b6b7d4775dfad537e0ca42e395c3a990a218ee828052c4f57f7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:49:28,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:49:28,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:49:29,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:49:29,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:49:29,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:49:29,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:49:29,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:49:29,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:49:29,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:49:29,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:49:29,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:49:29,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:49:29,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:49:29,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:49:29,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:49:29,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:49:29,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:49:29,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:49:29,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:49:29,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:49:29,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:49:29,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:49:29,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:49:29,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:49:29,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:49:29,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:49:29,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:49:29,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:49:29,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:49:29,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:49:29,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:49:29,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:49:29,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:49:29,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:49:29,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:49:29,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:49:29,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:49:29,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:49:29,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:49:29,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:49:29,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:49:29,185 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:49:29,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:49:29,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:49:29,187 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:49:29,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:49:29,188 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:49:29,188 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:49:29,189 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:49:29,189 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:49:29,189 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:49:29,190 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:49:29,191 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:49:29,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:49:29,193 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:49:29,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:49:29,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:49:29,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:49:29,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:49:29,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:49:29,194 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:49:29,195 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:49:29,195 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:49:29,195 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:49:29,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:49:29,196 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:49:29,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:49:29,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:49:29,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:49:29,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:49:29,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:49:29,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:49:29,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:49:29,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:49:29,198 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:49:29,199 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:49:29,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:49:29,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:49:29,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:49:29,200 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_1d714bf6-6de0-42cd-8015-394e9172c8e2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6bcae8fdfc31b6b7d4775dfad537e0ca42e395c3a990a218ee828052c4f57f7 [2021-11-23 16:49:29,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:49:29,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:49:29,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:49:29,755 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:49:29,756 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:49:29,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.06.cil-2.c [2021-11-23 16:49:29,849 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/data/9e2d3269b/7eddab3d84aa4957a782536813ac158c/FLAG84eb75c1a [2021-11-23 16:49:31,229 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:49:31,231 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/sv-benchmarks/c/combinations/Problem05_label43+token_ring.06.cil-2.c [2021-11-23 16:49:31,313 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/data/9e2d3269b/7eddab3d84aa4957a782536813ac158c/FLAG84eb75c1a [2021-11-23 16:49:31,810 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/data/9e2d3269b/7eddab3d84aa4957a782536813ac158c [2021-11-23 16:49:31,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:49:31,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:49:31,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:49:31,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:49:31,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:49:31,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:49:31" (1/1) ... [2021-11-23 16:49:31,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3beacf6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:31, skipping insertion in model container [2021-11-23 16:49:31,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:49:31" (1/1) ... [2021-11-23 16:49:31,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:49:32,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:49:34,979 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_1d714bf6-6de0-42cd-8015-394e9172c8e2/sv-benchmarks/c/combinations/Problem05_label43+token_ring.06.cil-2.c[381679,381692] [2021-11-23 16:49:35,011 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_1d714bf6-6de0-42cd-8015-394e9172c8e2/sv-benchmarks/c/combinations/Problem05_label43+token_ring.06.cil-2.c[383339,383352] [2021-11-23 16:49:35,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:49:35,333 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:49:36,779 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_1d714bf6-6de0-42cd-8015-394e9172c8e2/sv-benchmarks/c/combinations/Problem05_label43+token_ring.06.cil-2.c[381679,381692] [2021-11-23 16:49:36,804 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_1d714bf6-6de0-42cd-8015-394e9172c8e2/sv-benchmarks/c/combinations/Problem05_label43+token_ring.06.cil-2.c[383339,383352] [2021-11-23 16:49:36,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:49:36,931 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:49:36,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:36 WrapperNode [2021-11-23 16:49:36,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:49:36,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:49:36,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:49:36,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:49:36,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:36" (1/1) ... [2021-11-23 16:49:37,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:36" (1/1) ... [2021-11-23 16:49:37,797 INFO L137 Inliner]: procedures = 57, calls = 59, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 12821 [2021-11-23 16:49:37,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:49:37,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:49:37,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:49:37,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:49:37,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:36" (1/1) ... [2021-11-23 16:49:37,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:36" (1/1) ... [2021-11-23 16:49:37,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:36" (1/1) ... [2021-11-23 16:49:37,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:36" (1/1) ... [2021-11-23 16:49:38,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:36" (1/1) ... [2021-11-23 16:49:38,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:36" (1/1) ... [2021-11-23 16:49:38,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:36" (1/1) ... [2021-11-23 16:49:38,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:49:38,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:49:38,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:49:38,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:49:38,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:36" (1/1) ... [2021-11-23 16:49:38,532 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:49:38,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:49:38,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:49:38,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:49:38,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:49:38,665 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 16:49:38,665 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 16:49:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 16:49:38,666 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 16:49:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 16:49:38,666 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 16:49:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:49:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 16:49:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 16:49:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 16:49:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 16:49:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 16:49:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 16:49:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:49:38,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:49:38,885 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:49:38,887 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:49:51,038 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:49:51,080 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:49:51,081 INFO L301 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-23 16:49:51,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:49:51 BoogieIcfgContainer [2021-11-23 16:49:51,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:49:51,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:49:51,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:49:51,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:49:51,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:49:31" (1/3) ... [2021-11-23 16:49:51,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c088a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:49:51, skipping insertion in model container [2021-11-23 16:49:51,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:49:36" (2/3) ... [2021-11-23 16:49:51,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c088a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:49:51, skipping insertion in model container [2021-11-23 16:49:51,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:49:51" (3/3) ... [2021-11-23 16:49:51,202 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.06.cil-2.c [2021-11-23 16:49:51,209 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:49:51,209 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 16:49:51,285 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:49:51,292 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 16:49:51,293 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 16:49:51,381 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 16:49:51,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-23 16:49:51,400 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:49:51,401 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 16:49:51,405 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:49:51,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:49:51,419 INFO L85 PathProgramCache]: Analyzing trace with hash -72843931, now seen corresponding path program 1 times [2021-11-23 16:49:51,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:49:51,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081834660] [2021-11-23 16:49:51,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:49:51,434 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:49:51,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:49:51,438 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:49:51,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 16:49:51,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 16:49:51,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:49:51,715 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 16:49:51,721 INFO L158 Benchmark]: Toolchain (without parser) took 19904.18ms. Allocated memory was 86.0MB in the beginning and 945.8MB in the end (delta: 859.8MB). Free memory was 39.0MB in the beginning and 752.8MB in the end (delta: -713.8MB). Peak memory consumption was 147.9MB. Max. memory is 16.1GB. [2021-11-23 16:49:51,722 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 86.0MB. Free memory was 67.3MB in the beginning and 67.3MB in the end (delta: 75.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:49:51,723 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5115.20ms. Allocated memory was 86.0MB in the beginning and 163.6MB in the end (delta: 77.6MB). Free memory was 38.8MB in the beginning and 70.4MB in the end (delta: -31.6MB). Peak memory consumption was 84.3MB. Max. memory is 16.1GB. [2021-11-23 16:49:51,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 864.77ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 70.4MB in the beginning and 116.1MB in the end (delta: -45.7MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2021-11-23 16:49:51,725 INFO L158 Benchmark]: Boogie Preprocessor took 706.05ms. Allocated memory was 237.0MB in the beginning and 474.0MB in the end (delta: 237.0MB). Free memory was 116.1MB in the beginning and 339.1MB in the end (delta: -223.0MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2021-11-23 16:49:51,726 INFO L158 Benchmark]: RCFGBuilder took 12566.02ms. Allocated memory was 474.0MB in the beginning and 945.8MB in the end (delta: 471.9MB). Free memory was 339.1MB in the beginning and 529.7MB in the end (delta: -190.6MB). Peak memory consumption was 281.2MB. Max. memory is 16.1GB. [2021-11-23 16:49:51,727 INFO L158 Benchmark]: TraceAbstraction took 628.37ms. Allocated memory is still 945.8MB. Free memory was 529.7MB in the beginning and 752.8MB in the end (delta: -223.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:49:51,732 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 86.0MB. Free memory was 67.3MB in the beginning and 67.3MB in the end (delta: 75.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5115.20ms. Allocated memory was 86.0MB in the beginning and 163.6MB in the end (delta: 77.6MB). Free memory was 38.8MB in the beginning and 70.4MB in the end (delta: -31.6MB). Peak memory consumption was 84.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 864.77ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 70.4MB in the beginning and 116.1MB in the end (delta: -45.7MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 706.05ms. Allocated memory was 237.0MB in the beginning and 474.0MB in the end (delta: 237.0MB). Free memory was 116.1MB in the beginning and 339.1MB in the end (delta: -223.0MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. * RCFGBuilder took 12566.02ms. Allocated memory was 474.0MB in the beginning and 945.8MB in the end (delta: 471.9MB). Free memory was 339.1MB in the beginning and 529.7MB in the end (delta: -190.6MB). Peak memory consumption was 281.2MB. Max. memory is 16.1GB. * TraceAbstraction took 628.37ms. Allocated memory is still 945.8MB. Free memory was 529.7MB in the beginning and 752.8MB in the end (delta: -223.1MB). There was no memory consumed. 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 16:49:51,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d714bf6-6de0-42cd-8015-394e9172c8e2/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