./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.08.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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.08.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/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 d82b800c515c04812d9c150cf365a0cfa0ea150fbe8533e2e65b2216ea091fd6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:33:27,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:33:27,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:33:27,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:33:27,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:33:27,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:33:27,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:33:27,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:33:27,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:33:27,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:33:27,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:33:27,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:33:27,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:33:27,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:33:27,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:33:27,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:33:27,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:33:27,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:33:27,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:33:27,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:33:27,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:33:27,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:33:27,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:33:27,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:33:27,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:33:27,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:33:27,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:33:27,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:33:27,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:33:27,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:33:27,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:33:27,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:33:27,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:33:27,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:33:27,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:33:27,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:33:27,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:33:27,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:33:27,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:33:27,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:33:27,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:33:27,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:33:27,195 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:33:27,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:33:27,196 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:33:27,197 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:33:27,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:33:27,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:33:27,205 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:33:27,205 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:33:27,206 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:33:27,206 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:33:27,207 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:33:27,207 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:33:27,207 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:33:27,208 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:33:27,208 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:33:27,208 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:33:27,209 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:33:27,209 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:33:27,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:33:27,210 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:33:27,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:33:27,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:33:27,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:33:27,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:33:27,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:33:27,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:33:27,213 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:33:27,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:33:27,214 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:33:27,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:33:27,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:33:27,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:33:27,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:33:27,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:33:27,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:33:27,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:33:27,216 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:33:27,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:33:27,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:33:27,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:33:27,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:33:27,217 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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d82b800c515c04812d9c150cf365a0cfa0ea150fbe8533e2e65b2216ea091fd6 [2021-11-23 17:33:27,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:33:27,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:33:27,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:33:27,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:33:27,560 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:33:27,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.08.cil-1.c [2021-11-23 17:33:27,630 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/data/1d4c02122/a99c091d23d14d89a28591c2472d2360/FLAG1ca159a43 [2021-11-23 17:33:28,781 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:33:28,782 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/sv-benchmarks/c/combinations/Problem05_label40+token_ring.08.cil-1.c [2021-11-23 17:33:28,856 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/data/1d4c02122/a99c091d23d14d89a28591c2472d2360/FLAG1ca159a43 [2021-11-23 17:33:29,038 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/data/1d4c02122/a99c091d23d14d89a28591c2472d2360 [2021-11-23 17:33:29,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:33:29,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:33:29,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:33:29,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:33:29,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:33:29,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:33:29" (1/1) ... [2021-11-23 17:33:29,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664e5022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:29, skipping insertion in model container [2021-11-23 17:33:29,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:33:29" (1/1) ... [2021-11-23 17:33:29,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:33:29,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:33:32,036 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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/sv-benchmarks/c/combinations/Problem05_label40+token_ring.08.cil-1.c[377069,377082] [2021-11-23 17:33:32,081 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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/sv-benchmarks/c/combinations/Problem05_label40+token_ring.08.cil-1.c[383339,383352] [2021-11-23 17:33:32,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:33:32,469 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:33:34,041 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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/sv-benchmarks/c/combinations/Problem05_label40+token_ring.08.cil-1.c[377069,377082] [2021-11-23 17:33:34,053 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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/sv-benchmarks/c/combinations/Problem05_label40+token_ring.08.cil-1.c[383339,383352] [2021-11-23 17:33:34,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:33:34,222 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:33:34,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:34 WrapperNode [2021-11-23 17:33:34,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:33:34,224 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:33:34,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:33:34,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:33:34,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:34" (1/1) ... [2021-11-23 17:33:34,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:34" (1/1) ... [2021-11-23 17:33:34,928 INFO L137 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12967 [2021-11-23 17:33:34,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:33:34,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:33:34,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:33:34,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:33:34,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:34" (1/1) ... [2021-11-23 17:33:34,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:34" (1/1) ... [2021-11-23 17:33:35,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:34" (1/1) ... [2021-11-23 17:33:35,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:34" (1/1) ... [2021-11-23 17:33:35,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:34" (1/1) ... [2021-11-23 17:33:35,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:34" (1/1) ... [2021-11-23 17:33:35,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:34" (1/1) ... [2021-11-23 17:33:35,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:33:35,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:33:35,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:33:35,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:33:35,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:34" (1/1) ... [2021-11-23 17:33:35,725 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:33:35,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:33:35,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:33:35,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:33:35,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:33:35,961 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:33:35,962 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:33:35,962 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:33:35,962 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:33:35,962 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:33:35,963 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:33:35,963 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:33:35,963 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:33:35,963 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:33:35,963 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:33:35,964 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:33:35,964 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:33:35,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:33:35,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:33:35,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:33:36,164 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:33:36,166 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:33:44,519 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:33:44,667 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:33:44,673 INFO L158 Benchmark]: Toolchain (without parser) took 15627.68ms. Allocated memory was 102.8MB in the beginning and 897.6MB in the end (delta: 794.8MB). Free memory was 50.0MB in the beginning and 646.8MB in the end (delta: -596.8MB). Peak memory consumption was 390.2MB. Max. memory is 16.1GB. [2021-11-23 17:33:44,674 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 81.8MB. Free memory was 59.4MB in the beginning and 59.3MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:33:44,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5176.59ms. Allocated memory was 102.8MB in the beginning and 224.4MB in the end (delta: 121.6MB). Free memory was 49.5MB in the beginning and 128.6MB in the end (delta: -79.0MB). Peak memory consumption was 96.8MB. Max. memory is 16.1GB. [2021-11-23 17:33:44,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 704.63ms. Allocated memory is still 224.4MB. Free memory was 128.6MB in the beginning and 86.3MB in the end (delta: 42.3MB). Peak memory consumption was 94.7MB. Max. memory is 16.1GB. [2021-11-23 17:33:44,677 INFO L158 Benchmark]: Boogie Preprocessor took 783.81ms. Allocated memory was 224.4MB in the beginning and 448.8MB in the end (delta: 224.4MB). Free memory was 86.3MB in the beginning and 276.1MB in the end (delta: -189.8MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2021-11-23 17:33:44,678 INFO L158 Benchmark]: RCFGBuilder took 8956.12ms. Allocated memory was 448.8MB in the beginning and 897.6MB in the end (delta: 448.8MB). Free memory was 276.1MB in the beginning and 646.8MB in the end (delta: -370.7MB). Peak memory consumption was 271.1MB. Max. memory is 16.1GB. [2021-11-23 17:33:44,682 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 81.8MB. Free memory was 59.4MB in the beginning and 59.3MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5176.59ms. Allocated memory was 102.8MB in the beginning and 224.4MB in the end (delta: 121.6MB). Free memory was 49.5MB in the beginning and 128.6MB in the end (delta: -79.0MB). Peak memory consumption was 96.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 704.63ms. Allocated memory is still 224.4MB. Free memory was 128.6MB in the beginning and 86.3MB in the end (delta: 42.3MB). Peak memory consumption was 94.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 783.81ms. Allocated memory was 224.4MB in the beginning and 448.8MB in the end (delta: 224.4MB). Free memory was 86.3MB in the beginning and 276.1MB in the end (delta: -189.8MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * RCFGBuilder took 8956.12ms. Allocated memory was 448.8MB in the beginning and 897.6MB in the end (delta: 448.8MB). Free memory was 276.1MB in the beginning and 646.8MB in the end (delta: -370.7MB). Peak memory consumption was 271.1MB. 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 17:33:44,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.08.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/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 d82b800c515c04812d9c150cf365a0cfa0ea150fbe8533e2e65b2216ea091fd6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:33:47,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:33:47,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:33:47,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:33:47,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:33:47,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:33:47,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:33:47,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:33:47,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:33:47,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:33:47,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:33:47,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:33:47,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:33:47,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:33:47,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:33:47,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:33:47,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:33:47,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:33:47,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:33:47,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:33:47,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:33:47,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:33:47,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:33:47,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:33:47,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:33:47,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:33:47,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:33:47,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:33:47,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:33:47,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:33:47,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:33:47,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:33:47,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:33:47,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:33:47,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:33:47,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:33:47,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:33:47,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:33:47,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:33:47,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:33:47,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:33:47,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:33:47,753 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:33:47,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:33:47,754 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:33:47,755 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:33:47,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:33:47,756 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:33:47,757 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:33:47,757 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:33:47,757 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:33:47,758 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:33:47,759 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:33:47,759 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:33:47,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:33:47,761 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:33:47,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:33:47,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:33:47,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:33:47,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:33:47,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:33:47,763 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:33:47,763 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:33:47,764 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:33:47,764 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:33:47,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:33:47,764 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:33:47,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:33:47,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:33:47,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:33:47,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:33:47,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:33:47,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:33:47,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:33:47,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:33:47,768 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:33:47,768 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:33:47,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:33:47,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:33:47,769 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:33:47,769 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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d82b800c515c04812d9c150cf365a0cfa0ea150fbe8533e2e65b2216ea091fd6 [2021-11-23 17:33:48,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:33:48,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:33:48,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:33:48,309 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:33:48,310 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:33:48,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.08.cil-1.c [2021-11-23 17:33:48,399 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/data/227097a0c/02abc3c98d7a47c289cb4d854b676a79/FLAG81ea5ad16 [2021-11-23 17:33:49,916 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:33:49,916 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/sv-benchmarks/c/combinations/Problem05_label40+token_ring.08.cil-1.c [2021-11-23 17:33:50,005 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/data/227097a0c/02abc3c98d7a47c289cb4d854b676a79/FLAG81ea5ad16 [2021-11-23 17:33:50,387 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/data/227097a0c/02abc3c98d7a47c289cb4d854b676a79 [2021-11-23 17:33:50,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:33:50,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:33:50,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:33:50,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:33:50,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:33:50,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:33:50" (1/1) ... [2021-11-23 17:33:50,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b6d8333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:50, skipping insertion in model container [2021-11-23 17:33:50,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:33:50" (1/1) ... [2021-11-23 17:33:50,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:33:50,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:33:53,728 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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/sv-benchmarks/c/combinations/Problem05_label40+token_ring.08.cil-1.c[377069,377082] [2021-11-23 17:33:53,775 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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/sv-benchmarks/c/combinations/Problem05_label40+token_ring.08.cil-1.c[383339,383352] [2021-11-23 17:33:54,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:33:54,167 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:33:55,823 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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/sv-benchmarks/c/combinations/Problem05_label40+token_ring.08.cil-1.c[377069,377082] [2021-11-23 17:33:55,835 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_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/sv-benchmarks/c/combinations/Problem05_label40+token_ring.08.cil-1.c[383339,383352] [2021-11-23 17:33:55,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:33:56,002 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:33:56,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:56 WrapperNode [2021-11-23 17:33:56,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:33:56,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:33:56,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:33:56,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:33:56,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:56" (1/1) ... [2021-11-23 17:33:56,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:56" (1/1) ... [2021-11-23 17:33:56,822 INFO L137 Inliner]: procedures = 61, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12933 [2021-11-23 17:33:56,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:33:56,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:33:56,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:33:56,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:33:56,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:56" (1/1) ... [2021-11-23 17:33:56,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:56" (1/1) ... [2021-11-23 17:33:56,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:56" (1/1) ... [2021-11-23 17:33:56,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:56" (1/1) ... [2021-11-23 17:33:57,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:56" (1/1) ... [2021-11-23 17:33:57,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:56" (1/1) ... [2021-11-23 17:33:57,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:56" (1/1) ... [2021-11-23 17:33:57,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:33:57,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:33:57,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:33:57,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:33:57,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:56" (1/1) ... [2021-11-23 17:33:57,666 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:33:57,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:33:57,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:33:57,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:33:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:33:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:33:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:33:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:33:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:33:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:33:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:33:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:33:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:33:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:33:57,807 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:33:57,807 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:33:57,807 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:33:57,807 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:33:57,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:33:57,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:33:58,095 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:33:58,097 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:34:09,997 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:34:10,050 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:34:10,050 INFO L301 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-23 17:34:10,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:34:10 BoogieIcfgContainer [2021-11-23 17:34:10,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:34:10,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:34:10,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:34:10,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:34:10,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:33:50" (1/3) ... [2021-11-23 17:34:10,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ac0f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:34:10, skipping insertion in model container [2021-11-23 17:34:10,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:56" (2/3) ... [2021-11-23 17:34:10,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ac0f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:34:10, skipping insertion in model container [2021-11-23 17:34:10,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:34:10" (3/3) ... [2021-11-23 17:34:10,067 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.08.cil-1.c [2021-11-23 17:34:10,074 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:34:10,074 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 17:34:10,145 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:34:10,153 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 17:34:10,153 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 17:34:10,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2434 states have (on average 1.8483976992604765) internal successors, (4499), 2437 states have internal predecessors, (4499), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-23 17:34:10,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-23 17:34:10,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:34:10,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:34:10,263 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:34:10,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:34:10,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1316356206, now seen corresponding path program 1 times [2021-11-23 17:34:10,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:34:10,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807524671] [2021-11-23 17:34:10,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:34:10,287 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:34:10,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:34:10,289 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:34:10,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:34:10,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:34:10,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:34:10,579 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:34:10,586 INFO L158 Benchmark]: Toolchain (without parser) took 20192.95ms. Allocated memory was 60.8MB in the beginning and 1.0GB in the end (delta: 956.3MB). Free memory was 27.3MB in the beginning and 785.7MB in the end (delta: -758.4MB). Peak memory consumption was 196.0MB. Max. memory is 16.1GB. [2021-11-23 17:34:10,587 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 48.2MB. Free memory is still 29.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:34:10,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5592.69ms. Allocated memory was 60.8MB in the beginning and 268.4MB in the end (delta: 207.6MB). Free memory was 27.0MB in the beginning and 157.1MB in the end (delta: -130.0MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. [2021-11-23 17:34:10,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 819.77ms. Allocated memory is still 268.4MB. Free memory was 157.1MB in the beginning and 136.4MB in the end (delta: 20.7MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. [2021-11-23 17:34:10,590 INFO L158 Benchmark]: Boogie Preprocessor took 825.22ms. Allocated memory was 268.4MB in the beginning and 536.9MB in the end (delta: 268.4MB). Free memory was 136.4MB in the beginning and 375.0MB in the end (delta: -238.6MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2021-11-23 17:34:10,591 INFO L158 Benchmark]: RCFGBuilder took 12404.79ms. Allocated memory was 536.9MB in the beginning and 1.0GB in the end (delta: 480.2MB). Free memory was 375.0MB in the beginning and 813.0MB in the end (delta: -438.0MB). Peak memory consumption was 470.8MB. Max. memory is 16.1GB. [2021-11-23 17:34:10,592 INFO L158 Benchmark]: TraceAbstraction took 524.95ms. Allocated memory is still 1.0GB. Free memory was 811.9MB in the beginning and 785.7MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-23 17:34:10,596 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 48.2MB. Free memory is still 29.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5592.69ms. Allocated memory was 60.8MB in the beginning and 268.4MB in the end (delta: 207.6MB). Free memory was 27.0MB in the beginning and 157.1MB in the end (delta: -130.0MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 819.77ms. Allocated memory is still 268.4MB. Free memory was 157.1MB in the beginning and 136.4MB in the end (delta: 20.7MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 825.22ms. Allocated memory was 268.4MB in the beginning and 536.9MB in the end (delta: 268.4MB). Free memory was 136.4MB in the beginning and 375.0MB in the end (delta: -238.6MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * RCFGBuilder took 12404.79ms. Allocated memory was 536.9MB in the beginning and 1.0GB in the end (delta: 480.2MB). Free memory was 375.0MB in the beginning and 813.0MB in the end (delta: -438.0MB). Peak memory consumption was 470.8MB. Max. memory is 16.1GB. * TraceAbstraction took 524.95ms. Allocated memory is still 1.0GB. Free memory was 811.9MB in the beginning and 785.7MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:34:10,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536a4ed2-eccd-4aaf-a00d-d76cbfdb8310/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