./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product16.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_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/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_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/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_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/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 47500ba035fb95802358be3af8dbcb0499051de1fc18562b910c6b7689271057 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:26:20,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:26:20,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:26:20,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:26:20,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:26:20,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:26:20,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:26:20,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:26:20,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:26:20,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:26:20,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:26:20,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:26:20,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:26:20,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:26:20,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:26:20,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:26:20,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:26:20,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:26:20,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:26:20,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:26:20,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:26:20,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:26:20,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:26:20,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:26:20,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:26:20,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:26:20,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:26:20,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:26:20,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:26:20,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:26:20,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:26:20,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:26:20,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:26:20,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:26:20,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:26:20,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:26:20,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:26:20,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:26:20,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:26:20,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:26:20,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:26:20,445 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:26:20,470 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:26:20,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:26:20,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:26:20,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:26:20,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:26:20,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:26:20,478 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:26:20,478 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:26:20,478 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:26:20,478 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:26:20,479 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:26:20,480 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:26:20,480 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:26:20,480 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:26:20,480 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:26:20,481 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:26:20,481 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:26:20,481 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:26:20,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:26:20,482 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:26:20,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:26:20,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:26:20,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:26:20,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:26:20,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:26:20,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:26:20,485 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:26:20,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:26:20,486 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:26:20,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:26:20,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:26:20,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:26:20,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:26:20,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:26:20,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:26:20,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:26:20,488 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:26:20,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:26:20,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:26:20,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:26:20,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:26:20,489 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_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47500ba035fb95802358be3af8dbcb0499051de1fc18562b910c6b7689271057 [2021-11-23 17:26:20,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:26:20,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:26:20,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:26:20,823 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:26:20,824 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:26:20,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/email_spec9_product16.cil.c [2021-11-23 17:26:20,893 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/data/d68cd122b/84070e53d5844377acb9b18f44b8ae82/FLAGdce383fcf [2021-11-23 17:26:21,445 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:26:21,461 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c [2021-11-23 17:26:21,497 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/data/d68cd122b/84070e53d5844377acb9b18f44b8ae82/FLAGdce383fcf [2021-11-23 17:26:21,714 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/data/d68cd122b/84070e53d5844377acb9b18f44b8ae82 [2021-11-23 17:26:21,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:26:21,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:26:21,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:26:21,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:26:21,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:26:21,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:26:21" (1/1) ... [2021-11-23 17:26:21,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e953cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:21, skipping insertion in model container [2021-11-23 17:26:21,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:26:21" (1/1) ... [2021-11-23 17:26:21,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:26:21,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:26:22,406 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_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c[33283,33296] [2021-11-23 17:26:22,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:26:22,562 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:26:22,640 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_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c[33283,33296] [2021-11-23 17:26:22,695 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:26:22,734 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:26:22,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:22 WrapperNode [2021-11-23 17:26:22,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:26:22,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:26:22,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:26:22,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:26:22,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:22" (1/1) ... [2021-11-23 17:26:22,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:22" (1/1) ... [2021-11-23 17:26:22,872 INFO L137 Inliner]: procedures = 126, calls = 201, calls flagged for inlining = 57, calls inlined = 52, statements flattened = 994 [2021-11-23 17:26:22,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:26:22,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:26:22,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:26:22,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:26:22,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:22" (1/1) ... [2021-11-23 17:26:22,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:22" (1/1) ... [2021-11-23 17:26:22,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:22" (1/1) ... [2021-11-23 17:26:22,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:22" (1/1) ... [2021-11-23 17:26:22,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:22" (1/1) ... [2021-11-23 17:26:22,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:22" (1/1) ... [2021-11-23 17:26:22,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:22" (1/1) ... [2021-11-23 17:26:22,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:26:22,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:26:22,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:26:22,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:26:22,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:22" (1/1) ... [2021-11-23 17:26:22,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:26:22,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:26:23,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:26:23,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:26:23,078 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-11-23 17:26:23,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-11-23 17:26:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-11-23 17:26:23,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-11-23 17:26:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 17:26:23,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 17:26:23,080 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 17:26:23,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 17:26:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 17:26:23,093 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 17:26:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-11-23 17:26:23,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-11-23 17:26:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 17:26:23,093 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 17:26:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 17:26:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 17:26:23,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 17:26:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:26:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 17:26:23,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 17:26:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 17:26:23,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 17:26:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 17:26:23,095 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 17:26:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 17:26:23,096 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 17:26:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-11-23 17:26:23,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-11-23 17:26:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 17:26:23,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 17:26:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 17:26:23,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 17:26:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:26:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 17:26:23,098 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 17:26:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:26:23,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:26:23,295 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:26:23,297 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:26:24,006 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:26:24,075 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 17:26:24,081 INFO L158 Benchmark]: Toolchain (without parser) took 2361.17ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 65.1MB in the beginning and 55.2MB in the end (delta: 9.9MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2021-11-23 17:26:24,083 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 100.7MB. Free memory was 54.1MB in the beginning and 54.0MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:26:24,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1015.60ms. Allocated memory is still 100.7MB. Free memory was 64.9MB in the beginning and 50.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:26:24,085 INFO L158 Benchmark]: Boogie Procedure Inliner took 136.33ms. Allocated memory is still 100.7MB. Free memory was 49.8MB in the beginning and 44.3MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:26:24,086 INFO L158 Benchmark]: Boogie Preprocessor took 88.72ms. Allocated memory is still 100.7MB. Free memory was 44.3MB in the beginning and 40.5MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:26:24,087 INFO L158 Benchmark]: RCFGBuilder took 1115.79ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 40.1MB in the beginning and 55.2MB in the end (delta: -15.1MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2021-11-23 17:26:24,098 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 100.7MB. Free memory was 54.1MB in the beginning and 54.0MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1015.60ms. Allocated memory is still 100.7MB. Free memory was 64.9MB in the beginning and 50.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 136.33ms. Allocated memory is still 100.7MB. Free memory was 49.8MB in the beginning and 44.3MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.72ms. Allocated memory is still 100.7MB. Free memory was 44.3MB in the beginning and 40.5MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1115.79ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 40.1MB in the beginning and 55.2MB in the end (delta: -15.1MB). Peak memory consumption was 20.2MB. 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 17:26:24,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/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_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/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_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/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 47500ba035fb95802358be3af8dbcb0499051de1fc18562b910c6b7689271057 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:26:26,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:26:26,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:26:26,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:26:26,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:26:26,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:26:26,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:26:26,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:26:26,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:26:26,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:26:26,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:26:26,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:26:26,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:26:26,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:26:26,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:26:26,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:26:26,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:26:26,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:26:26,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:26:26,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:26:26,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:26:26,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:26:26,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:26:26,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:26:26,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:26:26,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:26:26,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:26:26,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:26:26,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:26:26,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:26:26,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:26:26,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:26:26,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:26:26,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:26:26,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:26:26,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:26:26,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:26:26,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:26:26,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:26:26,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:26:26,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:26:26,746 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:26:26,794 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:26:26,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:26:26,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:26:26,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:26:26,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:26:26,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:26:26,796 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:26:26,797 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:26:26,797 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:26:26,797 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:26:26,798 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:26:26,799 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:26:26,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:26:26,801 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:26:26,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:26:26,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:26:26,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:26:26,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:26:26,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:26:26,802 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:26:26,802 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:26:26,803 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:26:26,803 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:26:26,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:26:26,803 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:26:26,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:26:26,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:26:26,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:26:26,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:26:26,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:26:26,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:26:26,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:26:26,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:26:26,806 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:26:26,807 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:26:26,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:26:26,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:26:26,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:26:26,815 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_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47500ba035fb95802358be3af8dbcb0499051de1fc18562b910c6b7689271057 [2021-11-23 17:26:27,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:26:27,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:26:27,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:26:27,232 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:26:27,233 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:26:27,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/email_spec9_product16.cil.c [2021-11-23 17:26:27,298 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/data/8051b4c5e/d8580d662fcf488cb76d445137bc9dd3/FLAG78dd415b9 [2021-11-23 17:26:27,968 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:26:27,968 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c [2021-11-23 17:26:27,989 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/data/8051b4c5e/d8580d662fcf488cb76d445137bc9dd3/FLAG78dd415b9 [2021-11-23 17:26:28,195 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/data/8051b4c5e/d8580d662fcf488cb76d445137bc9dd3 [2021-11-23 17:26:28,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:26:28,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:26:28,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:26:28,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:26:28,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:26:28,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:26:28" (1/1) ... [2021-11-23 17:26:28,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fadf0f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:28, skipping insertion in model container [2021-11-23 17:26:28,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:26:28" (1/1) ... [2021-11-23 17:26:28,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:26:28,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:26:28,822 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_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c[33283,33296] [2021-11-23 17:26:28,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:26:29,001 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 17:26:29,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:26:29,082 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_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c[33283,33296] [2021-11-23 17:26:29,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:26:29,139 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:26:29,209 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_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c[33283,33296] [2021-11-23 17:26:29,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:26:29,308 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:26:29,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:29 WrapperNode [2021-11-23 17:26:29,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:26:29,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:26:29,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:26:29,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:26:29,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:29" (1/1) ... [2021-11-23 17:26:29,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:29" (1/1) ... [2021-11-23 17:26:29,476 INFO L137 Inliner]: procedures = 128, calls = 201, calls flagged for inlining = 57, calls inlined = 52, statements flattened = 946 [2021-11-23 17:26:29,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:26:29,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:26:29,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:26:29,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:26:29,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:29" (1/1) ... [2021-11-23 17:26:29,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:29" (1/1) ... [2021-11-23 17:26:29,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:29" (1/1) ... [2021-11-23 17:26:29,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:29" (1/1) ... [2021-11-23 17:26:29,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:29" (1/1) ... [2021-11-23 17:26:29,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:29" (1/1) ... [2021-11-23 17:26:29,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:29" (1/1) ... [2021-11-23 17:26:29,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:26:29,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:26:29,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:26:29,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:26:29,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:29" (1/1) ... [2021-11-23 17:26:29,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:26:29,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:26:29,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:26:29,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:26:29,691 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-11-23 17:26:29,691 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-11-23 17:26:29,692 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-11-23 17:26:29,692 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-11-23 17:26:29,692 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 17:26:29,692 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 17:26:29,693 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 17:26:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 17:26:29,693 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 17:26:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 17:26:29,693 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-11-23 17:26:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-11-23 17:26:29,694 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 17:26:29,694 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 17:26:29,694 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 17:26:29,694 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 17:26:29,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 17:26:29,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:26:29,695 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 17:26:29,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 17:26:29,695 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 17:26:29,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 17:26:29,695 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 17:26:29,696 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 17:26:29,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:26:29,696 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 17:26:29,696 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 17:26:29,697 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-11-23 17:26:29,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-11-23 17:26:29,697 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 17:26:29,697 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 17:26:29,698 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 17:26:29,698 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 17:26:29,699 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 17:26:29,699 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 17:26:29,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:26:29,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:26:29,923 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:26:29,925 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:26:30,751 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:26:30,762 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:26:30,762 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:26:30,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:26:30 BoogieIcfgContainer [2021-11-23 17:26:30,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:26:30,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:26:30,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:26:30,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:26:30,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:26:28" (1/3) ... [2021-11-23 17:26:30,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58710377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:26:30, skipping insertion in model container [2021-11-23 17:26:30,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:29" (2/3) ... [2021-11-23 17:26:30,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58710377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:26:30, skipping insertion in model container [2021-11-23 17:26:30,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:26:30" (3/3) ... [2021-11-23 17:26:30,774 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product16.cil.c [2021-11-23 17:26:30,780 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:26:30,780 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:26:30,832 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:26:30,848 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 17:26:30,848 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:26:30,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 299 states, 236 states have (on average 1.5338983050847457) internal successors, (362), 240 states have internal predecessors, (362), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2021-11-23 17:26:30,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-23 17:26:30,902 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:26:30,903 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2021-11-23 17:26:30,903 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:26:30,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:26:30,912 INFO L85 PathProgramCache]: Analyzing trace with hash -806898450, now seen corresponding path program 1 times [2021-11-23 17:26:30,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:26:30,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670650427] [2021-11-23 17:26:30,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:26:30,937 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:26:30,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:26:30,954 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:26:30,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:26:31,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:26:31,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:26:31,297 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 17:26:31,307 INFO L158 Benchmark]: Toolchain (without parser) took 3105.36ms. Allocated memory was 60.8MB in the beginning and 117.4MB in the end (delta: 56.6MB). Free memory was 37.2MB in the beginning and 87.6MB in the end (delta: -50.3MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2021-11-23 17:26:31,308 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 60.8MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:26:31,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1109.28ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 37.1MB in the beginning and 55.6MB in the end (delta: -18.5MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2021-11-23 17:26:31,310 INFO L158 Benchmark]: Boogie Procedure Inliner took 167.70ms. Allocated memory is still 79.7MB. Free memory was 55.6MB in the beginning and 50.2MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:26:31,311 INFO L158 Benchmark]: Boogie Preprocessor took 119.57ms. Allocated memory is still 79.7MB. Free memory was 50.2MB in the beginning and 46.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:26:31,313 INFO L158 Benchmark]: RCFGBuilder took 1166.68ms. Allocated memory is still 79.7MB. Free memory was 46.0MB in the beginning and 41.9MB in the end (delta: 4.1MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2021-11-23 17:26:31,318 INFO L158 Benchmark]: TraceAbstraction took 536.20ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 41.5MB in the beginning and 87.6MB in the end (delta: -46.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:26:31,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 60.8MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1109.28ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 37.1MB in the beginning and 55.6MB in the end (delta: -18.5MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 167.70ms. Allocated memory is still 79.7MB. Free memory was 55.6MB in the beginning and 50.2MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 119.57ms. Allocated memory is still 79.7MB. Free memory was 50.2MB in the beginning and 46.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1166.68ms. Allocated memory is still 79.7MB. Free memory was 46.0MB in the beginning and 41.9MB in the end (delta: 4.1MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * TraceAbstraction took 536.20ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 41.5MB in the beginning and 87.6MB in the end (delta: -46.1MB). 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 17:26:31,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfbe841b-5f2c-4ac8-9d6a-15f2342c90d5/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