./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product13.cil.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_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/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_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/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_40c2e701-ac21-4804-ae3f-80b53ed9044d/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 a4d75af8ac92d9f5b92cf5fbd6315f6202b8108aa1e42fc32d65f286c89fdf2f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:21:24,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:21:24,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:21:24,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:21:24,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:21:24,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:21:24,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:21:24,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:21:24,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:21:24,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:21:24,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:21:24,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:21:24,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:21:24,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:21:24,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:21:24,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:21:24,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:21:24,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:21:24,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:21:24,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:21:24,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:21:24,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:21:24,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:21:24,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:21:24,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:21:24,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:21:24,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:21:24,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:21:24,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:21:24,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:21:24,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:21:24,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:21:24,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:21:24,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:21:24,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:21:24,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:21:24,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:21:24,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:21:24,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:21:24,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:21:24,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:21:24,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:21:24,961 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:21:24,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:21:24,972 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:21:24,972 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:21:24,973 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:21:24,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:21:24,975 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:21:24,975 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:21:24,975 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:21:24,976 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:21:24,977 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:21:24,977 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:21:24,977 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:21:24,978 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:21:24,978 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:21:24,978 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:21:24,979 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:21:24,979 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:21:24,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:21:24,980 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:21:24,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:21:24,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:21:24,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:21:24,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:21:24,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:21:24,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:21:24,984 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:21:24,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:21:24,984 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:21:24,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:21:24,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:21:24,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:21:24,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:21:24,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:21:24,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:21:24,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:21:24,987 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:21:24,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:21:24,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:21:24,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:21:24,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:21:24,988 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_40c2e701-ac21-4804-ae3f-80b53ed9044d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4d75af8ac92d9f5b92cf5fbd6315f6202b8108aa1e42fc32d65f286c89fdf2f [2021-11-23 17:21:25,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:21:25,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:21:25,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:21:25,331 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:21:25,332 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:21:25,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/email_spec4_product13.cil.c [2021-11-23 17:21:25,441 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/data/0b6265500/a2727e4d0b3447e782fed0fa03eb49c1/FLAGe3245beac [2021-11-23 17:21:26,174 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:21:26,175 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/sv-benchmarks/c/product-lines/email_spec4_product13.cil.c [2021-11-23 17:21:26,232 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/data/0b6265500/a2727e4d0b3447e782fed0fa03eb49c1/FLAGe3245beac [2021-11-23 17:21:26,349 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/data/0b6265500/a2727e4d0b3447e782fed0fa03eb49c1 [2021-11-23 17:21:26,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:21:26,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:21:26,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:21:26,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:21:26,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:21:26,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:21:26" (1/1) ... [2021-11-23 17:21:26,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611890d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:26, skipping insertion in model container [2021-11-23 17:21:26,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:21:26" (1/1) ... [2021-11-23 17:21:26,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:21:26,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:21:27,017 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_40c2e701-ac21-4804-ae3f-80b53ed9044d/sv-benchmarks/c/product-lines/email_spec4_product13.cil.c[42804,42817] [2021-11-23 17:21:27,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:21:27,222 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:21:27,352 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_40c2e701-ac21-4804-ae3f-80b53ed9044d/sv-benchmarks/c/product-lines/email_spec4_product13.cil.c[42804,42817] [2021-11-23 17:21:27,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:21:27,416 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:21:27,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:27 WrapperNode [2021-11-23 17:21:27,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:21:27,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:21:27,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:21:27,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:21:27,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:27" (1/1) ... [2021-11-23 17:21:27,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:27" (1/1) ... [2021-11-23 17:21:27,527 INFO L137 Inliner]: procedures = 124, calls = 189, calls flagged for inlining = 53, calls inlined = 44, statements flattened = 837 [2021-11-23 17:21:27,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:21:27,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:21:27,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:21:27,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:21:27,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:27" (1/1) ... [2021-11-23 17:21:27,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:27" (1/1) ... [2021-11-23 17:21:27,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:27" (1/1) ... [2021-11-23 17:21:27,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:27" (1/1) ... [2021-11-23 17:21:27,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:27" (1/1) ... [2021-11-23 17:21:27,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:27" (1/1) ... [2021-11-23 17:21:27,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:27" (1/1) ... [2021-11-23 17:21:27,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:21:27,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:21:27,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:21:27,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:21:27,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:27" (1/1) ... [2021-11-23 17:21:27,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:21:27,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:21:27,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:21:27,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:21:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-11-23 17:21:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-11-23 17:21:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 17:21:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 17:21:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 17:21:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 17:21:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-11-23 17:21:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-11-23 17:21:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 17:21:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 17:21:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-11-23 17:21:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-11-23 17:21:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 17:21:27,720 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 17:21:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 17:21:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-23 17:21:27,720 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-23 17:21:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 17:21:27,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 17:21:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:21:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-11-23 17:21:27,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-11-23 17:21:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 17:21:27,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 17:21:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 17:21:27,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 17:21:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 17:21:27,723 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 17:21:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 17:21:27,723 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 17:21:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 17:21:27,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 17:21:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:21:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 17:21:27,724 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 17:21:27,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:21:27,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:21:28,042 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:21:28,044 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:21:29,080 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:21:29,181 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 17:21:29,187 INFO L158 Benchmark]: Toolchain (without parser) took 2830.99ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 79.9MB in the beginning and 80.3MB in the end (delta: -373.1kB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2021-11-23 17:21:29,189 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory was 66.8MB in the beginning and 66.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:21:29,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1056.86ms. Allocated memory is still 113.2MB. Free memory was 79.9MB in the beginning and 62.6MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 17:21:29,193 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.36ms. Allocated memory is still 113.2MB. Free memory was 62.6MB in the beginning and 57.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:21:29,194 INFO L158 Benchmark]: Boogie Preprocessor took 74.61ms. Allocated memory is still 113.2MB. Free memory was 57.4MB in the beginning and 54.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:21:29,195 INFO L158 Benchmark]: RCFGBuilder took 1579.84ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 54.2MB in the beginning and 80.3MB in the end (delta: -26.1MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2021-11-23 17:21:29,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 113.2MB. Free memory was 66.8MB in the beginning and 66.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1056.86ms. Allocated memory is still 113.2MB. Free memory was 79.9MB in the beginning and 62.6MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.36ms. Allocated memory is still 113.2MB. Free memory was 62.6MB in the beginning and 57.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.61ms. Allocated memory is still 113.2MB. Free memory was 57.4MB in the beginning and 54.2MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1579.84ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 54.2MB in the beginning and 80.3MB in the end (delta: -26.1MB). Peak memory consumption was 17.7MB. 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 17:21:29,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/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_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/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_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/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_40c2e701-ac21-4804-ae3f-80b53ed9044d/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 a4d75af8ac92d9f5b92cf5fbd6315f6202b8108aa1e42fc32d65f286c89fdf2f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:21:32,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:21:32,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:21:32,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:21:32,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:21:32,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:21:32,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:21:32,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:21:32,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:21:32,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:21:32,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:21:32,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:21:32,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:21:32,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:21:32,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:21:32,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:21:32,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:21:32,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:21:32,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:21:32,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:21:32,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:21:32,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:21:32,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:21:32,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:21:32,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:21:32,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:21:32,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:21:32,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:21:32,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:21:32,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:21:32,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:21:32,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:21:32,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:21:32,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:21:32,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:21:32,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:21:32,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:21:32,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:21:32,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:21:32,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:21:32,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:21:32,391 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:21:32,442 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:21:32,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:21:32,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:21:32,444 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:21:32,445 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:21:32,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:21:32,446 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:21:32,446 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:21:32,447 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:21:32,447 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:21:32,448 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:21:32,449 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:21:32,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:21:32,451 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:21:32,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:21:32,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:21:32,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:21:32,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:21:32,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:21:32,453 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:21:32,453 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:21:32,454 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:21:32,454 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:21:32,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:21:32,455 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:21:32,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:21:32,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:21:32,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:21:32,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:21:32,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:21:32,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:21:32,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:21:32,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:21:32,459 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:21:32,459 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:21:32,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:21:32,460 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:21:32,460 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:21:32,461 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_40c2e701-ac21-4804-ae3f-80b53ed9044d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4d75af8ac92d9f5b92cf5fbd6315f6202b8108aa1e42fc32d65f286c89fdf2f [2021-11-23 17:21:32,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:21:32,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:21:32,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:21:32,978 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:21:32,979 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:21:32,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/email_spec4_product13.cil.c [2021-11-23 17:21:33,074 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/data/4807742d6/e546b706cc3b45d5bf93263755ccd819/FLAGa7f13d00c [2021-11-23 17:21:33,849 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:21:33,850 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/sv-benchmarks/c/product-lines/email_spec4_product13.cil.c [2021-11-23 17:21:33,884 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/data/4807742d6/e546b706cc3b45d5bf93263755ccd819/FLAGa7f13d00c [2021-11-23 17:21:34,094 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/data/4807742d6/e546b706cc3b45d5bf93263755ccd819 [2021-11-23 17:21:34,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:21:34,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:21:34,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:21:34,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:21:34,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:21:34,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:21:34" (1/1) ... [2021-11-23 17:21:34,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6917fc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:34, skipping insertion in model container [2021-11-23 17:21:34,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:21:34" (1/1) ... [2021-11-23 17:21:34,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:21:34,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:21:34,900 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_40c2e701-ac21-4804-ae3f-80b53ed9044d/sv-benchmarks/c/product-lines/email_spec4_product13.cil.c[42804,42817] [2021-11-23 17:21:34,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:21:35,026 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 17:21:35,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:21:35,153 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_40c2e701-ac21-4804-ae3f-80b53ed9044d/sv-benchmarks/c/product-lines/email_spec4_product13.cil.c[42804,42817] [2021-11-23 17:21:35,203 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:21:35,216 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:21:35,303 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_40c2e701-ac21-4804-ae3f-80b53ed9044d/sv-benchmarks/c/product-lines/email_spec4_product13.cil.c[42804,42817] [2021-11-23 17:21:35,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:21:35,390 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:21:35,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:35 WrapperNode [2021-11-23 17:21:35,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:21:35,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:21:35,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:21:35,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:21:35,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:35" (1/1) ... [2021-11-23 17:21:35,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:35" (1/1) ... [2021-11-23 17:21:35,526 INFO L137 Inliner]: procedures = 126, calls = 189, calls flagged for inlining = 53, calls inlined = 44, statements flattened = 798 [2021-11-23 17:21:35,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:21:35,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:21:35,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:21:35,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:21:35,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:35" (1/1) ... [2021-11-23 17:21:35,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:35" (1/1) ... [2021-11-23 17:21:35,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:35" (1/1) ... [2021-11-23 17:21:35,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:35" (1/1) ... [2021-11-23 17:21:35,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:35" (1/1) ... [2021-11-23 17:21:35,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:35" (1/1) ... [2021-11-23 17:21:35,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:35" (1/1) ... [2021-11-23 17:21:35,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:21:35,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:21:35,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:21:35,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:21:35,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:35" (1/1) ... [2021-11-23 17:21:35,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:21:35,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:21:35,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:21:35,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:21:35,758 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-11-23 17:21:35,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-11-23 17:21:35,758 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 17:21:35,759 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 17:21:35,759 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 17:21:35,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 17:21:35,759 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-11-23 17:21:35,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-11-23 17:21:35,759 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 17:21:35,759 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 17:21:35,760 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-11-23 17:21:35,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-11-23 17:21:35,760 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 17:21:35,760 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 17:21:35,760 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 17:21:35,760 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-23 17:21:35,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-23 17:21:35,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 17:21:35,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 17:21:35,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:21:35,761 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-11-23 17:21:35,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-11-23 17:21:35,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 17:21:35,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 17:21:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 17:21:35,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 17:21:35,763 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 17:21:35,763 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 17:21:35,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:21:35,763 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 17:21:35,764 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 17:21:35,764 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 17:21:35,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 17:21:35,764 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 17:21:35,765 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 17:21:35,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:21:35,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:21:36,143 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:21:36,147 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:21:37,102 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:21:37,115 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:21:37,115 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:21:37,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:21:37 BoogieIcfgContainer [2021-11-23 17:21:37,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:21:37,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:21:37,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:21:37,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:21:37,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:21:34" (1/3) ... [2021-11-23 17:21:37,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d74d6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:21:37, skipping insertion in model container [2021-11-23 17:21:37,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:21:35" (2/3) ... [2021-11-23 17:21:37,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d74d6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:21:37, skipping insertion in model container [2021-11-23 17:21:37,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:21:37" (3/3) ... [2021-11-23 17:21:37,129 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec4_product13.cil.c [2021-11-23 17:21:37,136 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:21:37,136 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:21:37,205 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:21:37,219 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 17:21:37,219 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:21:37,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 271 states, 216 states have (on average 1.5509259259259258) internal successors, (335), 218 states have internal predecessors, (335), 37 states have call successors, (37), 16 states have call predecessors, (37), 16 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-11-23 17:21:37,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-23 17:21:37,309 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:21:37,310 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:21:37,310 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:21:37,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:21:37,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1430097031, now seen corresponding path program 1 times [2021-11-23 17:21:37,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:21:37,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040849992] [2021-11-23 17:21:37,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:21:37,334 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:21:37,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:21:37,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:21:37,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:21:37,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 17:21:37,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:21:37,656 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 17:21:37,660 INFO L158 Benchmark]: Toolchain (without parser) took 3560.06ms. Allocated memory was 60.8MB in the beginning and 107.0MB in the end (delta: 46.1MB). Free memory was 37.9MB in the beginning and 52.8MB in the end (delta: -15.0MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2021-11-23 17:21:37,661 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 60.8MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:21:37,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1290.04ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.6MB in the beginning and 48.7MB in the end (delta: -11.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 17:21:37,662 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.71ms. Allocated memory is still 73.4MB. Free memory was 48.7MB in the beginning and 43.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:21:37,663 INFO L158 Benchmark]: Boogie Preprocessor took 126.12ms. Allocated memory is still 73.4MB. Free memory was 43.4MB in the beginning and 40.0MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:21:37,670 INFO L158 Benchmark]: RCFGBuilder took 1464.59ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 39.6MB in the beginning and 66.6MB in the end (delta: -27.0MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2021-11-23 17:21:37,670 INFO L158 Benchmark]: TraceAbstraction took 536.96ms. Allocated memory is still 107.0MB. Free memory was 66.1MB in the beginning and 52.8MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:21:37,673 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 60.8MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1290.04ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.6MB in the beginning and 48.7MB in the end (delta: -11.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 134.71ms. Allocated memory is still 73.4MB. Free memory was 48.7MB in the beginning and 43.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 126.12ms. Allocated memory is still 73.4MB. Free memory was 43.4MB in the beginning and 40.0MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1464.59ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 39.6MB in the beginning and 66.6MB in the end (delta: -27.0MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 536.96ms. Allocated memory is still 107.0MB. Free memory was 66.1MB in the beginning and 52.8MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. 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 17:21:37,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c2e701-ac21-4804-ae3f-80b53ed9044d/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