./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i --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_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/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_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/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_0fb53635-fcea-4d57-896b-2a496392312e/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 528fbc32d9aa1d8a4eedfd9ab07830e3af97eea6ef37fe4df10e8aa3c9d21936 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:38:23,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:38:23,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:38:24,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:38:24,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:38:24,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:38:24,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:38:24,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:38:24,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:38:24,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:38:24,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:38:24,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:38:24,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:38:24,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:38:24,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:38:24,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:38:24,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:38:24,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:38:24,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:38:24,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:38:24,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:38:24,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:38:24,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:38:24,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:38:24,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:38:24,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:38:24,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:38:24,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:38:24,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:38:24,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:38:24,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:38:24,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:38:24,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:38:24,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:38:24,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:38:24,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:38:24,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:38:24,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:38:24,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:38:24,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:38:24,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:38:24,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:38:24,108 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:38:24,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:38:24,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:38:24,109 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:38:24,110 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:38:24,110 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:38:24,111 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:38:24,111 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:38:24,111 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:38:24,111 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:38:24,112 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:38:24,113 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:38:24,113 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:38:24,113 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:38:24,113 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:38:24,114 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:38:24,114 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:38:24,114 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:38:24,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:38:24,115 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:38:24,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:38:24,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:38:24,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:38:24,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:38:24,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:38:24,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:38:24,118 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:38:24,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:38:24,119 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:38:24,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:38:24,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:38:24,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:38:24,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:38:24,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:38:24,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:38:24,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:38:24,121 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:38:24,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:38:24,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:38:24,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:38:24,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:38:24,122 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_0fb53635-fcea-4d57-896b-2a496392312e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 528fbc32d9aa1d8a4eedfd9ab07830e3af97eea6ef37fe4df10e8aa3c9d21936 [2021-11-23 17:38:24,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:38:24,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:38:24,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:38:24,466 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:38:24,467 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:38:24,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i [2021-11-23 17:38:24,551 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/data/3ddc5bf7b/72d077568a6940c0a007560f99eb5b49/FLAG9c127ec81 [2021-11-23 17:38:25,073 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:38:25,074 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i [2021-11-23 17:38:25,095 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/data/3ddc5bf7b/72d077568a6940c0a007560f99eb5b49/FLAG9c127ec81 [2021-11-23 17:38:25,396 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/data/3ddc5bf7b/72d077568a6940c0a007560f99eb5b49 [2021-11-23 17:38:25,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:38:25,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:38:25,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:38:25,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:38:25,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:38:25,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:38:25" (1/1) ... [2021-11-23 17:38:25,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71ca8dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:25, skipping insertion in model container [2021-11-23 17:38:25,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:38:25" (1/1) ... [2021-11-23 17:38:25,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:38:25,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:38:25,845 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_0fb53635-fcea-4d57-896b-2a496392312e/sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i[23818,23831] [2021-11-23 17:38:25,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:38:25,863 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:38:25,928 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_0fb53635-fcea-4d57-896b-2a496392312e/sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i[23818,23831] [2021-11-23 17:38:25,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:38:25,976 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:38:25,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:25 WrapperNode [2021-11-23 17:38:25,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:38:25,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:38:25,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:38:25,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:38:25,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:25" (1/1) ... [2021-11-23 17:38:26,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:25" (1/1) ... [2021-11-23 17:38:26,049 INFO L137 Inliner]: procedures = 125, calls = 15, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 87 [2021-11-23 17:38:26,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:38:26,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:38:26,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:38:26,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:38:26,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:25" (1/1) ... [2021-11-23 17:38:26,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:25" (1/1) ... [2021-11-23 17:38:26,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:25" (1/1) ... [2021-11-23 17:38:26,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:25" (1/1) ... [2021-11-23 17:38:26,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:25" (1/1) ... [2021-11-23 17:38:26,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:25" (1/1) ... [2021-11-23 17:38:26,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:25" (1/1) ... [2021-11-23 17:38:26,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:38:26,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:38:26,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:38:26,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:38:26,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:25" (1/1) ... [2021-11-23 17:38:26,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:38:26,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:38:26,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:38:26,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:38:26,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:38:26,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:38:26,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:38:26,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:38:26,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:38:26,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:38:26,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:38:26,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:38:26,344 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:38:26,345 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:38:26,375 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.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.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:38:26,381 INFO L158 Benchmark]: Toolchain (without parser) took 979.40ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 64.8MB in the beginning and 88.9MB in the end (delta: -24.1MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2021-11-23 17:38:26,382 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:38:26,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 575.14ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 64.5MB in the beginning and 99.3MB in the end (delta: -34.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:38:26,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.44ms. Allocated memory is still 130.0MB. Free memory was 99.3MB in the beginning and 97.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:38:26,385 INFO L158 Benchmark]: Boogie Preprocessor took 66.34ms. Allocated memory is still 130.0MB. Free memory was 97.6MB in the beginning and 95.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:38:26,386 INFO L158 Benchmark]: RCFGBuilder took 260.66ms. Allocated memory is still 130.0MB. Free memory was 95.8MB in the beginning and 88.9MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:38:26,390 INFO L339 ainManager$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 98.6MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 575.14ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 64.5MB in the beginning and 99.3MB in the end (delta: -34.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.44ms. Allocated memory is still 130.0MB. Free memory was 99.3MB in the beginning and 97.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.34ms. Allocated memory is still 130.0MB. Free memory was 97.6MB in the beginning and 95.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 260.66ms. Allocated memory is still 130.0MB. Free memory was 95.8MB in the beginning and 88.9MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. 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.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:38:26,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/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_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/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_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/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_0fb53635-fcea-4d57-896b-2a496392312e/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 528fbc32d9aa1d8a4eedfd9ab07830e3af97eea6ef37fe4df10e8aa3c9d21936 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:38:28,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:38:28,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:38:29,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:38:29,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:38:29,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:38:29,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:38:29,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:38:29,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:38:29,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:38:29,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:38:29,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:38:29,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:38:29,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:38:29,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:38:29,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:38:29,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:38:29,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:38:29,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:38:29,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:38:29,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:38:29,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:38:29,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:38:29,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:38:29,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:38:29,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:38:29,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:38:29,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:38:29,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:38:29,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:38:29,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:38:29,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:38:29,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:38:29,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:38:29,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:38:29,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:38:29,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:38:29,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:38:29,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:38:29,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:38:29,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:38:29,099 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:38:29,148 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:38:29,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:38:29,149 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:38:29,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:38:29,150 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:38:29,150 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:38:29,151 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:38:29,151 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:38:29,151 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:38:29,151 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:38:29,152 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:38:29,153 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:38:29,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:38:29,155 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:38:29,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:38:29,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:38:29,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:38:29,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:38:29,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:38:29,156 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:38:29,156 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:38:29,156 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:38:29,157 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:38:29,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:38:29,157 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:38:29,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:38:29,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:38:29,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:38:29,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:38:29,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:38:29,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:38:29,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:38:29,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:38:29,160 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:38:29,160 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:38:29,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:38:29,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:38:29,161 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:38:29,161 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_0fb53635-fcea-4d57-896b-2a496392312e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 528fbc32d9aa1d8a4eedfd9ab07830e3af97eea6ef37fe4df10e8aa3c9d21936 [2021-11-23 17:38:29,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:38:29,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:38:29,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:38:29,575 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:38:29,576 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:38:29,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i [2021-11-23 17:38:29,671 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/data/d35d41a76/a47fa6026ea44b678c23d76992e5a405/FLAG7ee42297c [2021-11-23 17:38:30,397 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:38:30,398 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i [2021-11-23 17:38:30,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/data/d35d41a76/a47fa6026ea44b678c23d76992e5a405/FLAG7ee42297c [2021-11-23 17:38:30,643 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/data/d35d41a76/a47fa6026ea44b678c23d76992e5a405 [2021-11-23 17:38:30,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:38:30,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:38:30,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:38:30,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:38:30,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:38:30,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:38:30" (1/1) ... [2021-11-23 17:38:30,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@452ac573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:30, skipping insertion in model container [2021-11-23 17:38:30,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:38:30" (1/1) ... [2021-11-23 17:38:30,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:38:30,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:38:31,046 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_0fb53635-fcea-4d57-896b-2a496392312e/sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i[23818,23831] [2021-11-23 17:38:31,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:38:31,063 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:38:31,104 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_0fb53635-fcea-4d57-896b-2a496392312e/sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i[23818,23831] [2021-11-23 17:38:31,105 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:38:31,141 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:38:31,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:31 WrapperNode [2021-11-23 17:38:31,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:38:31,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:38:31,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:38:31,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:38:31,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:31" (1/1) ... [2021-11-23 17:38:31,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:31" (1/1) ... [2021-11-23 17:38:31,196 INFO L137 Inliner]: procedures = 126, calls = 15, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 81 [2021-11-23 17:38:31,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:38:31,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:38:31,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:38:31,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:38:31,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:31" (1/1) ... [2021-11-23 17:38:31,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:31" (1/1) ... [2021-11-23 17:38:31,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:31" (1/1) ... [2021-11-23 17:38:31,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:31" (1/1) ... [2021-11-23 17:38:31,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:31" (1/1) ... [2021-11-23 17:38:31,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:31" (1/1) ... [2021-11-23 17:38:31,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:31" (1/1) ... [2021-11-23 17:38:31,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:38:31,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:38:31,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:38:31,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:38:31,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:31" (1/1) ... [2021-11-23 17:38:31,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:38:31,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:38:31,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:38:31,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:38:31,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:38:31,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:38:31,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:38:31,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:38:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:38:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:38:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:38:31,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:38:31,519 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:38:31,521 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:38:31,538 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.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.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:38:31,543 INFO L158 Benchmark]: Toolchain (without parser) took 892.64ms. Allocated memory is still 65.0MB. Free memory was 43.9MB in the beginning and 29.8MB in the end (delta: 14.1MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2021-11-23 17:38:31,543 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 65.0MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:38:31,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.24ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 40.7MB in the end (delta: 2.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:38:31,545 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.97ms. Allocated memory is still 65.0MB. Free memory was 40.7MB in the beginning and 38.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:38:31,546 INFO L158 Benchmark]: Boogie Preprocessor took 36.91ms. Allocated memory is still 65.0MB. Free memory was 38.5MB in the beginning and 37.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:38:31,547 INFO L158 Benchmark]: RCFGBuilder took 304.98ms. Allocated memory is still 65.0MB. Free memory was 36.9MB in the beginning and 29.8MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:38:31,551 INFO L339 ainManager$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 65.0MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 490.24ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 40.7MB in the end (delta: 2.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.97ms. Allocated memory is still 65.0MB. Free memory was 40.7MB in the beginning and 38.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.91ms. Allocated memory is still 65.0MB. Free memory was 38.5MB in the beginning and 37.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 304.98ms. Allocated memory is still 65.0MB. Free memory was 36.9MB in the beginning and 29.8MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. 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.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:38:31,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb53635-fcea-4d57-896b-2a496392312e/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