./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_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_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/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_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/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_a77a2380-54c5-4d77-82e9-762973838c8c/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 14dde7567748bafe076b052fc50547f9c42c454af1c5c326a7b2a07549e9af32 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:48:05,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:48:05,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:48:05,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:48:05,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:48:05,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:48:05,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:48:05,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:48:05,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:48:05,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:48:05,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:48:05,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:48:05,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:48:05,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:48:05,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:48:05,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:48:05,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:48:05,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:48:05,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:48:05,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:48:05,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:48:05,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:48:05,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:48:05,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:48:05,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:48:05,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:48:05,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:48:05,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:48:05,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:48:05,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:48:05,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:48:05,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:48:05,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:48:05,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:48:05,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:48:05,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:48:05,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:48:05,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:48:05,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:48:05,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:48:05,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:48:05,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:48:05,599 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:48:05,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:48:05,602 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:48:05,602 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:48:05,611 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:48:05,611 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:48:05,611 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:48:05,612 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:48:05,612 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:48:05,612 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:48:05,614 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:48:05,614 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:48:05,614 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:48:05,614 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:48:05,615 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:48:05,615 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:48:05,615 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:48:05,616 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:48:05,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:48:05,618 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:48:05,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:48:05,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:48:05,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:48:05,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:48:05,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:48:05,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:48:05,621 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:48:05,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:48:05,622 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:48:05,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:48:05,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:48:05,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:48:05,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:48:05,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:48:05,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:48:05,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:48:05,624 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:48:05,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:48:05,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:48:05,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:48:05,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:48:05,625 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_a77a2380-54c5-4d77-82e9-762973838c8c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14dde7567748bafe076b052fc50547f9c42c454af1c5c326a7b2a07549e9af32 [2021-11-23 16:48:06,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:48:06,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:48:06,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:48:06,060 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:48:06,061 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:48:06,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/email_spec6_product16.cil.c [2021-11-23 16:48:06,135 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/data/5131493b0/23e6e89140874093bf07d2bdf9633f5d/FLAGde2938ef9 [2021-11-23 16:48:06,895 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:48:06,896 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/sv-benchmarks/c/product-lines/email_spec6_product16.cil.c [2021-11-23 16:48:06,937 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/data/5131493b0/23e6e89140874093bf07d2bdf9633f5d/FLAGde2938ef9 [2021-11-23 16:48:07,098 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/data/5131493b0/23e6e89140874093bf07d2bdf9633f5d [2021-11-23 16:48:07,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:48:07,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:48:07,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:48:07,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:48:07,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:48:07,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:48:07" (1/1) ... [2021-11-23 16:48:07,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@429a83f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:07, skipping insertion in model container [2021-11-23 16:48:07,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:48:07" (1/1) ... [2021-11-23 16:48:07,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:48:07,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:48:07,836 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_a77a2380-54c5-4d77-82e9-762973838c8c/sv-benchmarks/c/product-lines/email_spec6_product16.cil.c[39829,39842] [2021-11-23 16:48:08,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:48:08,053 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:48:08,178 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_a77a2380-54c5-4d77-82e9-762973838c8c/sv-benchmarks/c/product-lines/email_spec6_product16.cil.c[39829,39842] [2021-11-23 16:48:08,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:48:08,282 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:48:08,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:08 WrapperNode [2021-11-23 16:48:08,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:48:08,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:48:08,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:48:08,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:48:08,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:08" (1/1) ... [2021-11-23 16:48:08,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:08" (1/1) ... [2021-11-23 16:48:08,523 INFO L137 Inliner]: procedures = 126, calls = 203, calls flagged for inlining = 55, calls inlined = 50, statements flattened = 969 [2021-11-23 16:48:08,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:48:08,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:48:08,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:48:08,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:48:08,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:08" (1/1) ... [2021-11-23 16:48:08,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:08" (1/1) ... [2021-11-23 16:48:08,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:08" (1/1) ... [2021-11-23 16:48:08,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:08" (1/1) ... [2021-11-23 16:48:08,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:08" (1/1) ... [2021-11-23 16:48:08,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:08" (1/1) ... [2021-11-23 16:48:08,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:08" (1/1) ... [2021-11-23 16:48:08,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:48:08,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:48:08,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:48:08,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:48:08,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:08" (1/1) ... [2021-11-23 16:48:08,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:48:08,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:48:08,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:48:08,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:48:08,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-11-23 16:48:08,777 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-11-23 16:48:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-11-23 16:48:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-11-23 16:48:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-11-23 16:48:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-11-23 16:48:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 16:48:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 16:48:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 16:48:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 16:48:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 16:48:08,780 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 16:48:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-11-23 16:48:08,780 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-11-23 16:48:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 16:48:08,781 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 16:48:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 16:48:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 16:48:08,782 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 16:48:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:48:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-11-23 16:48:08,782 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-11-23 16:48:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 16:48:08,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 16:48:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 16:48:08,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 16:48:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 16:48:08,784 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 16:48:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 16:48:08,784 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 16:48:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-11-23 16:48:08,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-11-23 16:48:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 16:48:08,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 16:48:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 16:48:08,786 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 16:48:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:48:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 16:48:08,786 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 16:48:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:48:08,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:48:09,032 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:48:09,035 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:48:10,170 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:48:10,256 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 16:48:10,262 INFO L158 Benchmark]: Toolchain (without parser) took 3143.63ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 72.6MB in the beginning and 61.0MB in the end (delta: 11.6MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2021-11-23 16:48:10,264 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 94.4MB. Free memory was 69.2MB in the beginning and 69.2MB in the end (delta: 45.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:48:10,266 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1152.56ms. Allocated memory is still 94.4MB. Free memory was 72.4MB in the beginning and 42.4MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-11-23 16:48:10,268 INFO L158 Benchmark]: Boogie Procedure Inliner took 239.14ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 42.2MB in the beginning and 85.0MB in the end (delta: -42.8MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2021-11-23 16:48:10,269 INFO L158 Benchmark]: Boogie Preprocessor took 131.83ms. Allocated memory is still 113.2MB. Free memory was 85.0MB in the beginning and 80.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:48:10,270 INFO L158 Benchmark]: RCFGBuilder took 1601.53ms. Allocated memory is still 113.2MB. Free memory was 80.8MB in the beginning and 61.0MB in the end (delta: 19.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-11-23 16:48:10,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 94.4MB. Free memory was 69.2MB in the beginning and 69.2MB in the end (delta: 45.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1152.56ms. Allocated memory is still 94.4MB. Free memory was 72.4MB in the beginning and 42.4MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 239.14ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 42.2MB in the beginning and 85.0MB in the end (delta: -42.8MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 131.83ms. Allocated memory is still 113.2MB. Free memory was 85.0MB in the beginning and 80.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1601.53ms. Allocated memory is still 113.2MB. Free memory was 80.8MB in the beginning and 61.0MB in the end (delta: 19.9MB). Peak memory consumption was 33.6MB. 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 16:48:10,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/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_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/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_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/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_a77a2380-54c5-4d77-82e9-762973838c8c/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 14dde7567748bafe076b052fc50547f9c42c454af1c5c326a7b2a07549e9af32 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:48:13,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:48:13,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:48:13,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:48:13,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:48:13,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:48:13,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:48:13,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:48:13,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:48:13,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:48:13,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:48:13,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:48:13,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:48:13,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:48:13,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:48:13,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:48:13,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:48:13,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:48:13,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:48:13,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:48:13,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:48:13,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:48:13,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:48:13,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:48:13,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:48:13,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:48:13,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:48:13,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:48:13,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:48:13,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:48:13,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:48:13,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:48:13,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:48:13,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:48:13,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:48:13,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:48:13,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:48:13,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:48:13,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:48:13,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:48:13,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:48:13,343 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:48:13,410 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:48:13,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:48:13,412 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:48:13,412 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:48:13,413 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:48:13,413 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:48:13,414 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:48:13,414 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:48:13,414 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:48:13,414 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:48:13,416 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:48:13,416 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:48:13,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:48:13,419 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:48:13,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:48:13,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:48:13,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:48:13,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:48:13,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:48:13,420 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:48:13,420 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:48:13,421 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:48:13,421 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:48:13,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:48:13,421 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:48:13,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:48:13,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:48:13,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:48:13,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:48:13,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:48:13,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:48:13,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:48:13,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:48:13,424 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:48:13,424 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:48:13,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:48:13,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:48:13,425 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:48:13,426 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_a77a2380-54c5-4d77-82e9-762973838c8c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14dde7567748bafe076b052fc50547f9c42c454af1c5c326a7b2a07549e9af32 [2021-11-23 16:48:13,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:48:13,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:48:13,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:48:13,951 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:48:13,952 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:48:13,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/email_spec6_product16.cil.c [2021-11-23 16:48:14,040 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/data/355b25507/f9c0f98cb7954f0d80ae8ed85fb26066/FLAGfdaa166a1 [2021-11-23 16:48:14,880 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:48:14,881 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/sv-benchmarks/c/product-lines/email_spec6_product16.cil.c [2021-11-23 16:48:14,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/data/355b25507/f9c0f98cb7954f0d80ae8ed85fb26066/FLAGfdaa166a1 [2021-11-23 16:48:15,083 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/data/355b25507/f9c0f98cb7954f0d80ae8ed85fb26066 [2021-11-23 16:48:15,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:48:15,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:48:15,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:48:15,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:48:15,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:48:15,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:48:15" (1/1) ... [2021-11-23 16:48:15,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3306adbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:15, skipping insertion in model container [2021-11-23 16:48:15,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:48:15" (1/1) ... [2021-11-23 16:48:15,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:48:15,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:48:15,843 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_a77a2380-54c5-4d77-82e9-762973838c8c/sv-benchmarks/c/product-lines/email_spec6_product16.cil.c[39829,39842] [2021-11-23 16:48:15,967 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:48:15,986 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 16:48:16,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:48:16,088 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_a77a2380-54c5-4d77-82e9-762973838c8c/sv-benchmarks/c/product-lines/email_spec6_product16.cil.c[39829,39842] [2021-11-23 16:48:16,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:48:16,181 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:48:16,283 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_a77a2380-54c5-4d77-82e9-762973838c8c/sv-benchmarks/c/product-lines/email_spec6_product16.cil.c[39829,39842] [2021-11-23 16:48:16,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:48:16,401 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:48:16,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:16 WrapperNode [2021-11-23 16:48:16,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:48:16,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:48:16,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:48:16,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:48:16,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:16" (1/1) ... [2021-11-23 16:48:16,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:16" (1/1) ... [2021-11-23 16:48:16,528 INFO L137 Inliner]: procedures = 128, calls = 203, calls flagged for inlining = 55, calls inlined = 50, statements flattened = 919 [2021-11-23 16:48:16,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:48:16,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:48:16,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:48:16,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:48:16,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:16" (1/1) ... [2021-11-23 16:48:16,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:16" (1/1) ... [2021-11-23 16:48:16,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:16" (1/1) ... [2021-11-23 16:48:16,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:16" (1/1) ... [2021-11-23 16:48:16,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:16" (1/1) ... [2021-11-23 16:48:16,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:16" (1/1) ... [2021-11-23 16:48:16,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:16" (1/1) ... [2021-11-23 16:48:16,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:48:16,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:48:16,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:48:16,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:48:16,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:16" (1/1) ... [2021-11-23 16:48:16,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:48:16,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:48:16,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:48:16,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:48:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-11-23 16:48:16,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-11-23 16:48:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2021-11-23 16:48:16,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2021-11-23 16:48:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2021-11-23 16:48:16,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2021-11-23 16:48:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 16:48:16,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 16:48:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 16:48:16,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 16:48:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 16:48:16,751 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 16:48:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2021-11-23 16:48:16,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2021-11-23 16:48:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 16:48:16,753 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 16:48:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 16:48:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 16:48:16,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 16:48:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:48:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2021-11-23 16:48:16,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2021-11-23 16:48:16,755 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 16:48:16,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 16:48:16,755 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 16:48:16,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 16:48:16,755 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 16:48:16,756 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 16:48:16,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:48:16,757 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 16:48:16,757 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 16:48:16,758 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2021-11-23 16:48:16,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2021-11-23 16:48:16,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 16:48:16,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 16:48:16,758 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 16:48:16,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 16:48:16,759 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 16:48:16,759 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 16:48:16,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:48:16,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:48:16,989 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:48:16,991 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:48:18,068 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:48:18,090 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:48:18,094 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 16:48:18,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:48:18 BoogieIcfgContainer [2021-11-23 16:48:18,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:48:18,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:48:18,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:48:18,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:48:18,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:48:15" (1/3) ... [2021-11-23 16:48:18,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b8ffe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:48:18, skipping insertion in model container [2021-11-23 16:48:18,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:16" (2/3) ... [2021-11-23 16:48:18,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b8ffe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:48:18, skipping insertion in model container [2021-11-23 16:48:18,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:48:18" (3/3) ... [2021-11-23 16:48:18,112 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec6_product16.cil.c [2021-11-23 16:48:18,119 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:48:18,119 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:48:18,211 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:48:18,223 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 16:48:18,224 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:48:18,278 INFO L276 IsEmpty]: Start isEmpty. Operand has 311 states, 242 states have (on average 1.5206611570247934) internal successors, (368), 246 states have internal predecessors, (368), 49 states have call successors, (49), 18 states have call predecessors, (49), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2021-11-23 16:48:18,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-23 16:48:18,313 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:48:18,314 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:48:18,314 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:48:18,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:48:18,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1457342358, now seen corresponding path program 1 times [2021-11-23 16:48:18,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:48:18,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135413621] [2021-11-23 16:48:18,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:48:18,347 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:48:18,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:48:18,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:48:18,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 16:48:18,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 16:48:18,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:48:18,747 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 16:48:18,752 INFO L158 Benchmark]: Toolchain (without parser) took 3650.27ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 37.3MB in the beginning and 42.1MB in the end (delta: -4.7MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2021-11-23 16:48:18,753 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 60.8MB. Free memory was 42.1MB in the beginning and 42.0MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:48:18,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1299.67ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 37.1MB in the beginning and 52.2MB in the end (delta: -15.1MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2021-11-23 16:48:18,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 125.62ms. Allocated memory is still 88.1MB. Free memory was 52.2MB in the beginning and 46.7MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 16:48:18,756 INFO L158 Benchmark]: Boogie Preprocessor took 120.64ms. Allocated memory is still 88.1MB. Free memory was 46.7MB in the beginning and 67.3MB in the end (delta: -20.6MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2021-11-23 16:48:18,757 INFO L158 Benchmark]: RCFGBuilder took 1450.36ms. Allocated memory is still 88.1MB. Free memory was 67.3MB in the beginning and 56.2MB in the end (delta: 11.0MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2021-11-23 16:48:18,758 INFO L158 Benchmark]: TraceAbstraction took 647.19ms. Allocated memory is still 88.1MB. Free memory was 55.7MB in the beginning and 42.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 16:48:18,763 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 60.8MB. Free memory was 42.1MB in the beginning and 42.0MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1299.67ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 37.1MB in the beginning and 52.2MB in the end (delta: -15.1MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 125.62ms. Allocated memory is still 88.1MB. Free memory was 52.2MB in the beginning and 46.7MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 120.64ms. Allocated memory is still 88.1MB. Free memory was 46.7MB in the beginning and 67.3MB in the end (delta: -20.6MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1450.36ms. Allocated memory is still 88.1MB. Free memory was 67.3MB in the beginning and 56.2MB in the end (delta: 11.0MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. * TraceAbstraction took 647.19ms. Allocated memory is still 88.1MB. Free memory was 55.7MB in the beginning and 42.1MB in the end (delta: 13.6MB). 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 16:48:18,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a77a2380-54c5-4d77-82e9-762973838c8c/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