./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.07.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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.07.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/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 40c1e0608e097577ee5e32b08b857d6e2e7eb2349b5c9e07b4711539a549ac1d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:32:48,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:32:48,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:32:48,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:32:48,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:32:48,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:32:48,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:32:48,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:32:48,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:32:48,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:32:48,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:32:48,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:32:48,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:32:48,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:32:48,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:32:48,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:32:48,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:32:48,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:32:48,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:32:48,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:32:48,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:32:48,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:32:48,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:32:48,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:32:48,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:32:48,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:32:48,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:32:48,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:32:48,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:32:48,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:32:48,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:32:48,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:32:48,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:32:48,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:32:48,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:32:48,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:32:48,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:32:48,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:32:48,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:32:48,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:32:48,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:32:48,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:32:49,036 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:32:49,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:32:49,037 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:32:49,038 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:32:49,039 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:32:49,039 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:32:49,040 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:32:49,040 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:32:49,040 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:32:49,041 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:32:49,041 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:32:49,041 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:32:49,042 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:32:49,042 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:32:49,043 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:32:49,043 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:32:49,043 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:32:49,044 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:32:49,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:32:49,045 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:32:49,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:32:49,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:32:49,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:32:49,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:32:49,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:32:49,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:32:49,048 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:32:49,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:32:49,048 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:32:49,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:32:49,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:32:49,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:32:49,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:32:49,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:32:49,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:32:49,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:32:49,051 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:32:49,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:32:49,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:32:49,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:32:49,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:32:49,052 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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40c1e0608e097577ee5e32b08b857d6e2e7eb2349b5c9e07b4711539a549ac1d [2021-11-23 17:32:49,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:32:49,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:32:49,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:32:49,443 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:32:49,443 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:32:49,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.07.cil-1.c [2021-11-23 17:32:49,518 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/data/6a0e14f1d/a682e08ceeec4ac8888a2657aa52aa3e/FLAGa75ec7d9b [2021-11-23 17:32:50,674 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:32:50,675 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/sv-benchmarks/c/combinations/Problem05_label48+token_ring.07.cil-1.c [2021-11-23 17:32:50,756 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/data/6a0e14f1d/a682e08ceeec4ac8888a2657aa52aa3e/FLAGa75ec7d9b [2021-11-23 17:32:50,945 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/data/6a0e14f1d/a682e08ceeec4ac8888a2657aa52aa3e [2021-11-23 17:32:50,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:32:50,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:32:50,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:32:50,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:32:50,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:32:50,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:32:50" (1/1) ... [2021-11-23 17:32:50,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3816fcfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:50, skipping insertion in model container [2021-11-23 17:32:50,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:32:50" (1/1) ... [2021-11-23 17:32:50,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:32:51,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:32:54,189 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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/sv-benchmarks/c/combinations/Problem05_label48+token_ring.07.cil-1.c[375709,375722] [2021-11-23 17:32:54,240 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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/sv-benchmarks/c/combinations/Problem05_label48+token_ring.07.cil-1.c[383339,383352] [2021-11-23 17:32:54,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:32:54,544 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:32:55,998 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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/sv-benchmarks/c/combinations/Problem05_label48+token_ring.07.cil-1.c[375709,375722] [2021-11-23 17:32:56,028 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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/sv-benchmarks/c/combinations/Problem05_label48+token_ring.07.cil-1.c[383339,383352] [2021-11-23 17:32:56,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:32:56,287 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:32:56,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:56 WrapperNode [2021-11-23 17:32:56,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:32:56,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:32:56,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:32:56,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:32:56,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:56" (1/1) ... [2021-11-23 17:32:56,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:56" (1/1) ... [2021-11-23 17:32:56,920 INFO L137 Inliner]: procedures = 58, calls = 62, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 12909 [2021-11-23 17:32:56,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:32:56,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:32:56,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:32:56,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:32:56,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:56" (1/1) ... [2021-11-23 17:32:56,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:56" (1/1) ... [2021-11-23 17:32:57,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:56" (1/1) ... [2021-11-23 17:32:57,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:56" (1/1) ... [2021-11-23 17:32:57,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:56" (1/1) ... [2021-11-23 17:32:57,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:56" (1/1) ... [2021-11-23 17:32:57,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:56" (1/1) ... [2021-11-23 17:32:57,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:32:57,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:32:57,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:32:57,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:32:57,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:56" (1/1) ... [2021-11-23 17:32:57,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:32:57,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:32:57,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:32:57,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:32:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:32:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:32:57,958 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:32:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:32:57,958 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:32:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:32:57,958 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:32:57,959 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:32:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:32:57,959 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:32:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:32:57,960 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:32:57,960 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:32:57,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:32:57,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:32:57,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:32:58,169 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:32:58,171 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:33:06,521 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:33:06,606 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 17:33:06,611 INFO L158 Benchmark]: Toolchain (without parser) took 15661.30ms. Allocated memory was 115.3MB in the beginning and 834.7MB in the end (delta: 719.3MB). Free memory was 82.9MB in the beginning and 495.4MB in the end (delta: -412.5MB). Peak memory consumption was 342.5MB. Max. memory is 16.1GB. [2021-11-23 17:33:06,612 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory was 66.9MB in the beginning and 66.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:33:06,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5350.92ms. Allocated memory was 115.3MB in the beginning and 224.4MB in the end (delta: 109.1MB). Free memory was 82.5MB in the beginning and 118.1MB in the end (delta: -35.6MB). Peak memory consumption was 92.8MB. Max. memory is 16.1GB. [2021-11-23 17:33:06,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 617.33ms. Allocated memory is still 224.4MB. Free memory was 118.1MB in the beginning and 78.7MB in the end (delta: 39.4MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. [2021-11-23 17:33:06,615 INFO L158 Benchmark]: Boogie Preprocessor took 828.72ms. Allocated memory was 224.4MB in the beginning and 448.8MB in the end (delta: 224.4MB). Free memory was 78.7MB in the beginning and 302.3MB in the end (delta: -223.6MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2021-11-23 17:33:06,617 INFO L158 Benchmark]: RCFGBuilder took 8858.04ms. Allocated memory was 448.8MB in the beginning and 834.7MB in the end (delta: 385.9MB). Free memory was 302.3MB in the beginning and 495.4MB in the end (delta: -193.1MB). Peak memory consumption was 229.4MB. Max. memory is 16.1GB. [2021-11-23 17:33:06,626 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory was 66.9MB in the beginning and 66.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5350.92ms. Allocated memory was 115.3MB in the beginning and 224.4MB in the end (delta: 109.1MB). Free memory was 82.5MB in the beginning and 118.1MB in the end (delta: -35.6MB). Peak memory consumption was 92.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 617.33ms. Allocated memory is still 224.4MB. Free memory was 118.1MB in the beginning and 78.7MB in the end (delta: 39.4MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 828.72ms. Allocated memory was 224.4MB in the beginning and 448.8MB in the end (delta: 224.4MB). Free memory was 78.7MB in the beginning and 302.3MB in the end (delta: -223.6MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. * RCFGBuilder took 8858.04ms. Allocated memory was 448.8MB in the beginning and 834.7MB in the end (delta: 385.9MB). Free memory was 302.3MB in the beginning and 495.4MB in the end (delta: -193.1MB). Peak memory consumption was 229.4MB. 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 17:33:06,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.07.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/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 40c1e0608e097577ee5e32b08b857d6e2e7eb2349b5c9e07b4711539a549ac1d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:33:09,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:33:09,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:33:09,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:33:09,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:33:09,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:33:09,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:33:09,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:33:09,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:33:09,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:33:09,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:33:09,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:33:09,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:33:09,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:33:09,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:33:09,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:33:09,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:33:09,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:33:09,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:33:09,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:33:09,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:33:09,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:33:09,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:33:09,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:33:09,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:33:09,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:33:09,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:33:09,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:33:09,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:33:09,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:33:09,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:33:09,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:33:09,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:33:09,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:33:09,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:33:09,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:33:09,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:33:09,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:33:09,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:33:09,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:33:09,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:33:09,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:33:09,537 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:33:09,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:33:09,538 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:33:09,538 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:33:09,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:33:09,539 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:33:09,539 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:33:09,539 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:33:09,540 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:33:09,540 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:33:09,540 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:33:09,540 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:33:09,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:33:09,541 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:33:09,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:33:09,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:33:09,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:33:09,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:33:09,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:33:09,543 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:33:09,543 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:33:09,543 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:33:09,543 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:33:09,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:33:09,544 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:33:09,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:33:09,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:33:09,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:33:09,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:33:09,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:33:09,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:33:09,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:33:09,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:33:09,546 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:33:09,546 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:33:09,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:33:09,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:33:09,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:33:09,547 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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40c1e0608e097577ee5e32b08b857d6e2e7eb2349b5c9e07b4711539a549ac1d [2021-11-23 17:33:09,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:33:09,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:33:09,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:33:09,970 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:33:09,971 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:33:09,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.07.cil-1.c [2021-11-23 17:33:10,050 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/data/51d6c5829/f5e61896abe44c878ba1fae49af850e0/FLAGa73eb69a1 [2021-11-23 17:33:11,304 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:33:11,306 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/sv-benchmarks/c/combinations/Problem05_label48+token_ring.07.cil-1.c [2021-11-23 17:33:11,368 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/data/51d6c5829/f5e61896abe44c878ba1fae49af850e0/FLAGa73eb69a1 [2021-11-23 17:33:11,492 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/data/51d6c5829/f5e61896abe44c878ba1fae49af850e0 [2021-11-23 17:33:11,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:33:11,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:33:11,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:33:11,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:33:11,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:33:11,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:33:11" (1/1) ... [2021-11-23 17:33:11,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7c47e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:11, skipping insertion in model container [2021-11-23 17:33:11,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:33:11" (1/1) ... [2021-11-23 17:33:11,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:33:11,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:33:14,157 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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/sv-benchmarks/c/combinations/Problem05_label48+token_ring.07.cil-1.c[375709,375722] [2021-11-23 17:33:14,196 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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/sv-benchmarks/c/combinations/Problem05_label48+token_ring.07.cil-1.c[383339,383352] [2021-11-23 17:33:14,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:33:14,517 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:33:15,922 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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/sv-benchmarks/c/combinations/Problem05_label48+token_ring.07.cil-1.c[375709,375722] [2021-11-23 17:33:15,933 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_e54d1cc0-4cde-4397-9cd7-06517484f7c9/sv-benchmarks/c/combinations/Problem05_label48+token_ring.07.cil-1.c[383339,383352] [2021-11-23 17:33:15,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:33:16,041 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:33:16,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:16 WrapperNode [2021-11-23 17:33:16,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:33:16,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:33:16,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:33:16,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:33:16,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:16" (1/1) ... [2021-11-23 17:33:16,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:16" (1/1) ... [2021-11-23 17:33:16,736 INFO L137 Inliner]: procedures = 59, calls = 62, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 12877 [2021-11-23 17:33:16,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:33:16,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:33:16,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:33:16,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:33:16,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:16" (1/1) ... [2021-11-23 17:33:16,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:16" (1/1) ... [2021-11-23 17:33:16,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:16" (1/1) ... [2021-11-23 17:33:16,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:16" (1/1) ... [2021-11-23 17:33:17,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:16" (1/1) ... [2021-11-23 17:33:17,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:16" (1/1) ... [2021-11-23 17:33:17,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:16" (1/1) ... [2021-11-23 17:33:17,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:33:17,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:33:17,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:33:17,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:33:17,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:16" (1/1) ... [2021-11-23 17:33:17,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:33:17,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:33:17,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:33:17,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:33:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:33:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:33:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:33:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:33:17,593 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:33:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:33:17,593 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:33:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:33:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:33:17,594 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:33:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:33:17,594 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:33:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:33:17,594 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:33:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:33:17,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:33:17,825 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:33:17,826 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:33:28,241 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:33:28,282 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:33:28,282 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-23 17:33:28,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:33:28 BoogieIcfgContainer [2021-11-23 17:33:28,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:33:28,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:33:28,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:33:28,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:33:28,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:33:11" (1/3) ... [2021-11-23 17:33:28,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446c2a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:33:28, skipping insertion in model container [2021-11-23 17:33:28,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:16" (2/3) ... [2021-11-23 17:33:28,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446c2a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:33:28, skipping insertion in model container [2021-11-23 17:33:28,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:33:28" (3/3) ... [2021-11-23 17:33:28,295 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label48+token_ring.07.cil-1.c [2021-11-23 17:33:28,301 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:33:28,301 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 17:33:28,365 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:33:28,372 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 17:33:28,372 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 17:33:28,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 2440 states, 2410 states have (on average 1.849792531120332) internal successors, (4458), 2413 states have internal predecessors, (4458), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-23 17:33:28,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-23 17:33:28,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:33:28,478 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] [2021-11-23 17:33:28,478 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:33:28,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:33:28,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1176565078, now seen corresponding path program 1 times [2021-11-23 17:33:28,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:33:28,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [8674452] [2021-11-23 17:33:28,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:33:28,500 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:33:28,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:33:28,504 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:33:28,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:33:28,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 17:33:28,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:33:28,774 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 17:33:28,778 INFO L158 Benchmark]: Toolchain (without parser) took 17280.03ms. Allocated memory was 73.4MB in the beginning and 765.5MB in the end (delta: 692.1MB). Free memory was 40.2MB in the beginning and 239.4MB in the end (delta: -199.1MB). Peak memory consumption was 491.2MB. Max. memory is 16.1GB. [2021-11-23 17:33:28,779 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 56.6MB. Free memory was 37.7MB in the beginning and 37.6MB in the end (delta: 38.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:33:28,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4543.22ms. Allocated memory was 73.4MB in the beginning and 176.2MB in the end (delta: 102.8MB). Free memory was 40.0MB in the beginning and 60.1MB in the end (delta: -20.0MB). Peak memory consumption was 91.7MB. Max. memory is 16.1GB. [2021-11-23 17:33:28,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 694.07ms. Allocated memory was 176.2MB in the beginning and 312.5MB in the end (delta: 136.3MB). Free memory was 60.1MB in the beginning and 168.6MB in the end (delta: -108.5MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2021-11-23 17:33:28,781 INFO L158 Benchmark]: Boogie Preprocessor took 653.18ms. Allocated memory is still 312.5MB. Free memory was 168.6MB in the beginning and 139.8MB in the end (delta: 28.8MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2021-11-23 17:33:28,782 INFO L158 Benchmark]: RCFGBuilder took 10895.82ms. Allocated memory was 312.5MB in the beginning and 765.5MB in the end (delta: 453.0MB). Free memory was 139.8MB in the beginning and 264.6MB in the end (delta: -124.8MB). Peak memory consumption was 332.4MB. Max. memory is 16.1GB. [2021-11-23 17:33:28,783 INFO L158 Benchmark]: TraceAbstraction took 487.52ms. Allocated memory is still 765.5MB. Free memory was 264.6MB in the beginning and 239.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-23 17:33:28,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 56.6MB. Free memory was 37.7MB in the beginning and 37.6MB in the end (delta: 38.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4543.22ms. Allocated memory was 73.4MB in the beginning and 176.2MB in the end (delta: 102.8MB). Free memory was 40.0MB in the beginning and 60.1MB in the end (delta: -20.0MB). Peak memory consumption was 91.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 694.07ms. Allocated memory was 176.2MB in the beginning and 312.5MB in the end (delta: 136.3MB). Free memory was 60.1MB in the beginning and 168.6MB in the end (delta: -108.5MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 653.18ms. Allocated memory is still 312.5MB. Free memory was 168.6MB in the beginning and 139.8MB in the end (delta: 28.8MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * RCFGBuilder took 10895.82ms. Allocated memory was 312.5MB in the beginning and 765.5MB in the end (delta: 453.0MB). Free memory was 139.8MB in the beginning and 264.6MB in the end (delta: -124.8MB). Peak memory consumption was 332.4MB. Max. memory is 16.1GB. * TraceAbstraction took 487.52ms. Allocated memory is still 765.5MB. Free memory was 264.6MB in the beginning and 239.4MB in the end (delta: 25.2MB). 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 17:33:28,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e54d1cc0-4cde-4397-9cd7-06517484f7c9/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