./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product10.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_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/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_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product10.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/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_4908a3ab-caed-403a-878c-07a849bd3658/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 ac360da941eb2bc713d1cdb41b6939d6a50ea394a41fda87a7330709a6b33058 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:53:43,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:53:43,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:53:43,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:53:43,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:53:43,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:53:43,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:53:43,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:53:43,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:53:43,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:53:43,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:53:43,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:53:43,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:53:43,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:53:43,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:53:43,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:53:43,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:53:43,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:53:43,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:53:43,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:53:43,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:53:43,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:53:43,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:53:43,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:53:43,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:53:43,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:53:43,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:53:43,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:53:43,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:53:43,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:53:43,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:53:43,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:53:43,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:53:43,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:53:43,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:53:43,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:53:43,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:53:43,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:53:43,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:53:43,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:53:43,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:53:43,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:53:43,469 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:53:43,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:53:43,471 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:53:43,471 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:53:43,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:53:43,473 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:53:43,473 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:53:43,474 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:53:43,474 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:53:43,474 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:53:43,476 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:53:43,476 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:53:43,477 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:53:43,477 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:53:43,477 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:53:43,478 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:53:43,478 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:53:43,478 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:53:43,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:53:43,480 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:53:43,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:53:43,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:53:43,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:53:43,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:53:43,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:53:43,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:53:43,483 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:53:43,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:53:43,484 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:53:43,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:53:43,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:53:43,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:53:43,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:53:43,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:53:43,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:53:43,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:53:43,487 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:53:43,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:53:43,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:53:43,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:53:43,488 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:53:43,489 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_4908a3ab-caed-403a-878c-07a849bd3658/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac360da941eb2bc713d1cdb41b6939d6a50ea394a41fda87a7330709a6b33058 [2021-11-23 16:53:43,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:53:43,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:53:43,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:53:43,875 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:53:43,876 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:53:43,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/email_spec0_product10.cil.c [2021-11-23 16:53:43,970 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/data/c8fc835ce/59da0840b3684651a8ad45227f8a8348/FLAG962a1ae8c [2021-11-23 16:53:44,689 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:53:44,690 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c [2021-11-23 16:53:44,714 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/data/c8fc835ce/59da0840b3684651a8ad45227f8a8348/FLAG962a1ae8c [2021-11-23 16:53:44,860 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/data/c8fc835ce/59da0840b3684651a8ad45227f8a8348 [2021-11-23 16:53:44,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:53:44,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:53:44,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:53:44,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:53:44,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:53:44,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:53:44" (1/1) ... [2021-11-23 16:53:44,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f3b1b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:44, skipping insertion in model container [2021-11-23 16:53:44,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:53:44" (1/1) ... [2021-11-23 16:53:44,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:53:44,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:53:45,255 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_4908a3ab-caed-403a-878c-07a849bd3658/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c[2842,2855] [2021-11-23 16:53:45,637 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:53:45,650 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:53:45,669 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_4908a3ab-caed-403a-878c-07a849bd3658/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c[2842,2855] [2021-11-23 16:53:45,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:53:45,856 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:53:45,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:45 WrapperNode [2021-11-23 16:53:45,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:53:45,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:53:45,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:53:45,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:53:45,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:45" (1/1) ... [2021-11-23 16:53:45,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:45" (1/1) ... [2021-11-23 16:53:45,988 INFO L137 Inliner]: procedures = 110, calls = 135, calls flagged for inlining = 40, calls inlined = 33, statements flattened = 617 [2021-11-23 16:53:45,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:53:45,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:53:45,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:53:45,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:53:46,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:45" (1/1) ... [2021-11-23 16:53:46,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:45" (1/1) ... [2021-11-23 16:53:46,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:45" (1/1) ... [2021-11-23 16:53:46,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:45" (1/1) ... [2021-11-23 16:53:46,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:45" (1/1) ... [2021-11-23 16:53:46,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:45" (1/1) ... [2021-11-23 16:53:46,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:45" (1/1) ... [2021-11-23 16:53:46,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:53:46,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:53:46,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:53:46,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:53:46,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:45" (1/1) ... [2021-11-23 16:53:46,106 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:53:46,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:53:46,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:53:46,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:53:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 16:53:46,192 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 16:53:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 16:53:46,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 16:53:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-11-23 16:53:46,192 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-11-23 16:53:46,193 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 16:53:46,193 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-23 16:53:46,193 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-23 16:53:46,193 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-11-23 16:53:46,193 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-11-23 16:53:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 16:53:46,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 16:53:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:53:46,194 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 16:53:46,194 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 16:53:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 16:53:46,195 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 16:53:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 16:53:46,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 16:53:46,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:53:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:53:46,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:53:46,381 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:53:46,383 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:53:47,030 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:53:47,084 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 16:53:47,089 INFO L158 Benchmark]: Toolchain (without parser) took 2223.59ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 56.0MB in the beginning and 78.2MB in the end (delta: -22.2MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2021-11-23 16:53:47,090 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 94.4MB. Free memory was 66.7MB in the beginning and 66.7MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:53:47,092 INFO L158 Benchmark]: CACSL2BoogieTranslator took 991.06ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 55.9MB in the beginning and 70.0MB in the end (delta: -14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 16:53:47,093 INFO L158 Benchmark]: Boogie Procedure Inliner took 129.87ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 65.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:53:47,094 INFO L158 Benchmark]: Boogie Preprocessor took 94.93ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 63.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:53:47,095 INFO L158 Benchmark]: RCFGBuilder took 1002.26ms. Allocated memory is still 117.4MB. Free memory was 62.5MB in the beginning and 78.2MB in the end (delta: -15.7MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2021-11-23 16:53:47,099 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 94.4MB. Free memory was 66.7MB in the beginning and 66.7MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 991.06ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 55.9MB in the beginning and 70.0MB in the end (delta: -14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 129.87ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 65.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.93ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 63.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1002.26ms. Allocated memory is still 117.4MB. Free memory was 62.5MB in the beginning and 78.2MB in the end (delta: -15.7MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 16:53:47,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/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_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/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_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product10.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/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_4908a3ab-caed-403a-878c-07a849bd3658/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 ac360da941eb2bc713d1cdb41b6939d6a50ea394a41fda87a7330709a6b33058 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:53:50,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:53:50,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:53:50,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:53:50,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:53:50,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:53:50,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:53:50,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:53:50,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:53:50,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:53:50,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:53:50,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:53:50,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:53:50,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:53:50,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:53:50,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:53:50,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:53:50,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:53:50,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:53:50,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:53:50,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:53:50,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:53:50,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:53:50,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:53:50,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:53:50,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:53:50,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:53:50,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:53:50,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:53:50,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:53:50,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:53:50,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:53:50,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:53:50,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:53:50,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:53:50,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:53:50,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:53:50,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:53:50,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:53:50,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:53:50,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:53:50,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:53:50,263 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:53:50,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:53:50,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:53:50,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:53:50,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:53:50,265 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:53:50,266 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:53:50,266 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:53:50,266 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:53:50,266 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:53:50,268 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:53:50,268 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:53:50,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:53:50,270 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:53:50,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:53:50,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:53:50,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:53:50,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:53:50,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:53:50,271 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:53:50,271 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:53:50,271 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:53:50,272 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:53:50,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:53:50,272 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:53:50,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:53:50,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:53:50,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:53:50,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:53:50,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:53:50,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:53:50,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:53:50,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:53:50,275 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:53:50,275 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:53:50,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:53:50,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:53:50,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:53:50,276 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_4908a3ab-caed-403a-878c-07a849bd3658/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac360da941eb2bc713d1cdb41b6939d6a50ea394a41fda87a7330709a6b33058 [2021-11-23 16:53:50,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:53:50,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:53:50,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:53:50,805 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:53:50,807 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:53:50,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/email_spec0_product10.cil.c [2021-11-23 16:53:50,891 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/data/3843437fb/3c6f9632059644fb8d9545869e3c3586/FLAGadc70db82 [2021-11-23 16:53:51,761 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:53:51,762 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c [2021-11-23 16:53:51,805 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/data/3843437fb/3c6f9632059644fb8d9545869e3c3586/FLAGadc70db82 [2021-11-23 16:53:51,929 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/data/3843437fb/3c6f9632059644fb8d9545869e3c3586 [2021-11-23 16:53:51,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:53:51,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:53:51,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:53:51,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:53:51,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:53:51,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:53:51" (1/1) ... [2021-11-23 16:53:51,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a30d650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:51, skipping insertion in model container [2021-11-23 16:53:51,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:53:51" (1/1) ... [2021-11-23 16:53:51,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:53:52,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:53:52,299 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_4908a3ab-caed-403a-878c-07a849bd3658/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c[2842,2855] [2021-11-23 16:53:52,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:53:52,735 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 16:53:52,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:53:52,761 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_4908a3ab-caed-403a-878c-07a849bd3658/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c[2842,2855] [2021-11-23 16:53:52,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:53:52,902 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:53:52,939 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_4908a3ab-caed-403a-878c-07a849bd3658/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c[2842,2855] [2021-11-23 16:53:53,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:53:53,148 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:53:53,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:53 WrapperNode [2021-11-23 16:53:53,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:53:53,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:53:53,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:53:53,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:53:53,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:53" (1/1) ... [2021-11-23 16:53:53,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:53" (1/1) ... [2021-11-23 16:53:53,303 INFO L137 Inliner]: procedures = 112, calls = 135, calls flagged for inlining = 40, calls inlined = 33, statements flattened = 584 [2021-11-23 16:53:53,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:53:53,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:53:53,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:53:53,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:53:53,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:53" (1/1) ... [2021-11-23 16:53:53,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:53" (1/1) ... [2021-11-23 16:53:53,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:53" (1/1) ... [2021-11-23 16:53:53,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:53" (1/1) ... [2021-11-23 16:53:53,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:53" (1/1) ... [2021-11-23 16:53:53,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:53" (1/1) ... [2021-11-23 16:53:53,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:53" (1/1) ... [2021-11-23 16:53:53,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:53:53,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:53:53,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:53:53,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:53:53,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:53" (1/1) ... [2021-11-23 16:53:53,444 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:53:53,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:53:53,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:53:53,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:53:53,540 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 16:53:53,540 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 16:53:53,541 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 16:53:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 16:53:53,541 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-11-23 16:53:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-11-23 16:53:53,541 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 16:53:53,541 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-23 16:53:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-23 16:53:53,542 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-11-23 16:53:53,542 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-11-23 16:53:53,542 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 16:53:53,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 16:53:53,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:53:53,543 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 16:53:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 16:53:53,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:53:53,543 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 16:53:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 16:53:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 16:53:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 16:53:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:53:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:53:53,736 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:53:53,739 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:53:54,477 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:53:54,488 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:53:54,488 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 16:53:54,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:53:54 BoogieIcfgContainer [2021-11-23 16:53:54,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:53:54,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:53:54,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:53:54,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:53:54,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:53:51" (1/3) ... [2021-11-23 16:53:54,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2460da9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:53:54, skipping insertion in model container [2021-11-23 16:53:54,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:53" (2/3) ... [2021-11-23 16:53:54,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2460da9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:53:54, skipping insertion in model container [2021-11-23 16:53:54,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:53:54" (3/3) ... [2021-11-23 16:53:54,501 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_product10.cil.c [2021-11-23 16:53:54,508 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:53:54,508 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:53:54,571 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:53:54,579 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 16:53:54,580 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:53:54,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 124 states have (on average 1.4758064516129032) internal successors, (183), 126 states have internal predecessors, (183), 19 states have call successors, (19), 9 states have call predecessors, (19), 9 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-23 16:53:54,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-23 16:53:54,632 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:53:54,634 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 16:53:54,635 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:53:54,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:53:54,647 INFO L85 PathProgramCache]: Analyzing trace with hash -948651659, now seen corresponding path program 1 times [2021-11-23 16:53:54,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:53:54,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176058852] [2021-11-23 16:53:54,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:53:54,670 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:53:54,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:53:54,677 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:53:54,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 16:53:54,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 16:53:55,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:53:55,007 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 16:53:55,012 INFO L158 Benchmark]: Toolchain (without parser) took 3077.05ms. Allocated memory was 52.4MB in the beginning and 75.5MB in the end (delta: 23.1MB). Free memory was 26.5MB in the beginning and 36.4MB in the end (delta: -9.9MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2021-11-23 16:53:55,012 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 52.4MB. Free memory was 33.5MB in the beginning and 33.4MB in the end (delta: 65.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:53:55,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1199.64ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 26.4MB in the beginning and 34.9MB in the end (delta: -8.5MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2021-11-23 16:53:55,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 152.90ms. Allocated memory is still 62.9MB. Free memory was 34.9MB in the beginning and 30.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:53:55,015 INFO L158 Benchmark]: Boogie Preprocessor took 125.20ms. Allocated memory is still 62.9MB. Free memory was 30.7MB in the beginning and 28.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:53:55,016 INFO L158 Benchmark]: RCFGBuilder took 1060.97ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 28.0MB in the beginning and 48.6MB in the end (delta: -20.7MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2021-11-23 16:53:55,017 INFO L158 Benchmark]: TraceAbstraction took 515.95ms. Allocated memory is still 75.5MB. Free memory was 48.2MB in the beginning and 36.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 16:53:55,021 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 52.4MB. Free memory was 33.5MB in the beginning and 33.4MB in the end (delta: 65.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1199.64ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 26.4MB in the beginning and 34.9MB in the end (delta: -8.5MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 152.90ms. Allocated memory is still 62.9MB. Free memory was 34.9MB in the beginning and 30.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 125.20ms. Allocated memory is still 62.9MB. Free memory was 30.7MB in the beginning and 28.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1060.97ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 28.0MB in the beginning and 48.6MB in the end (delta: -20.7MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * TraceAbstraction took 515.95ms. Allocated memory is still 75.5MB. Free memory was 48.2MB in the beginning and 36.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. 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 16:53:55,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4908a3ab-caed-403a-878c-07a849bd3658/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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable