./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product24.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_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/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_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/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_304f8037-9825-4870-8e26-ff0bc5679cce/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 f1a760a25f6e6d96f820367881f3fbbc32febc8ce03434205938078db6a21524 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:15:08,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:15:08,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:15:08,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:15:08,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:15:08,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:15:08,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:15:08,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:15:08,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:15:08,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:15:08,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:15:08,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:15:08,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:15:08,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:15:08,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:15:08,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:15:08,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:15:08,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:15:08,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:15:08,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:15:08,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:15:08,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:15:08,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:15:08,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:15:08,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:15:08,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:15:08,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:15:08,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:15:08,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:15:08,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:15:08,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:15:08,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:15:08,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:15:08,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:15:08,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:15:08,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:15:08,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:15:08,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:15:08,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:15:08,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:15:08,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:15:08,785 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:15:08,831 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:15:08,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:15:08,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:15:08,833 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:15:08,840 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:15:08,840 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:15:08,840 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:15:08,841 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:15:08,841 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:15:08,841 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:15:08,841 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:15:08,841 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:15:08,841 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:15:08,842 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:15:08,842 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:15:08,843 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:15:08,843 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:15:08,844 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:15:08,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:15:08,845 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:15:08,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:15:08,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:15:08,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:15:08,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:15:08,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:15:08,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:15:08,847 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:15:08,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:15:08,848 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:15:08,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:15:08,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:15:08,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:15:08,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:15:08,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:15:08,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:15:08,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:15:08,850 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:15:08,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:15:08,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:15:08,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:15:08,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:15:08,850 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_304f8037-9825-4870-8e26-ff0bc5679cce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1a760a25f6e6d96f820367881f3fbbc32febc8ce03434205938078db6a21524 [2021-11-23 17:15:09,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:15:09,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:15:09,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:15:09,235 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:15:09,235 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:15:09,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/email_spec27_product24.cil.c [2021-11-23 17:15:09,317 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/data/aa8970e75/06eb09a6f1a94ee7ac62382ae81f3f45/FLAG85339f765 [2021-11-23 17:15:09,950 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:15:09,950 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/sv-benchmarks/c/product-lines/email_spec27_product24.cil.c [2021-11-23 17:15:09,978 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/data/aa8970e75/06eb09a6f1a94ee7ac62382ae81f3f45/FLAG85339f765 [2021-11-23 17:15:10,145 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/data/aa8970e75/06eb09a6f1a94ee7ac62382ae81f3f45 [2021-11-23 17:15:10,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:15:10,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:15:10,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:15:10,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:15:10,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:15:10,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:15:10" (1/1) ... [2021-11-23 17:15:10,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64dcfcb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:10, skipping insertion in model container [2021-11-23 17:15:10,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:15:10" (1/1) ... [2021-11-23 17:15:10,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:15:10,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:15:10,835 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_304f8037-9825-4870-8e26-ff0bc5679cce/sv-benchmarks/c/product-lines/email_spec27_product24.cil.c[62587,62600] [2021-11-23 17:15:10,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:15:10,857 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:15:10,999 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_304f8037-9825-4870-8e26-ff0bc5679cce/sv-benchmarks/c/product-lines/email_spec27_product24.cil.c[62587,62600] [2021-11-23 17:15:11,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:15:11,047 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:15:11,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:11 WrapperNode [2021-11-23 17:15:11,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:15:11,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:15:11,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:15:11,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:15:11,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:11" (1/1) ... [2021-11-23 17:15:11,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:11" (1/1) ... [2021-11-23 17:15:11,202 INFO L137 Inliner]: procedures = 130, calls = 210, calls flagged for inlining = 62, calls inlined = 57, statements flattened = 1001 [2021-11-23 17:15:11,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:15:11,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:15:11,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:15:11,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:15:11,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:11" (1/1) ... [2021-11-23 17:15:11,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:11" (1/1) ... [2021-11-23 17:15:11,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:11" (1/1) ... [2021-11-23 17:15:11,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:11" (1/1) ... [2021-11-23 17:15:11,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:11" (1/1) ... [2021-11-23 17:15:11,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:11" (1/1) ... [2021-11-23 17:15:11,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:11" (1/1) ... [2021-11-23 17:15:11,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:15:11,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:15:11,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:15:11,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:15:11,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:11" (1/1) ... [2021-11-23 17:15:11,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:15:11,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:15:11,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:15:11,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:15:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 17:15:11,449 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 17:15:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 17:15:11,449 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 17:15:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-11-23 17:15:11,449 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-11-23 17:15:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 17:15:11,450 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 17:15:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-11-23 17:15:11,450 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-11-23 17:15:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 17:15:11,450 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 17:15:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 17:15:11,450 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-23 17:15:11,451 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-23 17:15:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-11-23 17:15:11,451 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-11-23 17:15:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 17:15:11,451 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 17:15:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:15:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-11-23 17:15:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-11-23 17:15:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 17:15:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 17:15:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 17:15:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 17:15:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 17:15:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 17:15:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2021-11-23 17:15:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2021-11-23 17:15:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-11-23 17:15:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-11-23 17:15:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 17:15:11,454 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 17:15:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 17:15:11,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 17:15:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 17:15:11,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 17:15:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:15:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 17:15:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 17:15:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:15:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:15:11,765 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:15:11,767 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:15:12,582 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:15:12,670 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:15:12,681 INFO L158 Benchmark]: Toolchain (without parser) took 2529.63ms. Allocated memory was 102.8MB in the beginning and 151.0MB in the end (delta: 48.2MB). Free memory was 58.5MB in the beginning and 109.5MB in the end (delta: -51.0MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2021-11-23 17:15:12,682 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:15:12,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 884.28ms. Allocated memory is still 102.8MB. Free memory was 58.4MB in the beginning and 48.5MB in the end (delta: 9.9MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2021-11-23 17:15:12,685 INFO L158 Benchmark]: Boogie Procedure Inliner took 169.26ms. Allocated memory was 102.8MB in the beginning and 151.0MB in the end (delta: 48.2MB). Free memory was 48.5MB in the beginning and 123.0MB in the end (delta: -74.5MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-11-23 17:15:12,686 INFO L158 Benchmark]: Boogie Preprocessor took 128.02ms. Allocated memory is still 151.0MB. Free memory was 122.9MB in the beginning and 119.3MB in the end (delta: 3.6MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-11-23 17:15:12,687 INFO L158 Benchmark]: RCFGBuilder took 1330.14ms. Allocated memory is still 151.0MB. Free memory was 119.3MB in the beginning and 109.5MB in the end (delta: 9.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2021-11-23 17:15:12,696 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 884.28ms. Allocated memory is still 102.8MB. Free memory was 58.4MB in the beginning and 48.5MB in the end (delta: 9.9MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 169.26ms. Allocated memory was 102.8MB in the beginning and 151.0MB in the end (delta: 48.2MB). Free memory was 48.5MB in the beginning and 123.0MB in the end (delta: -74.5MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 128.02ms. Allocated memory is still 151.0MB. Free memory was 122.9MB in the beginning and 119.3MB in the end (delta: 3.6MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * RCFGBuilder took 1330.14ms. Allocated memory is still 151.0MB. Free memory was 119.3MB in the beginning and 109.5MB in the end (delta: 9.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:15:12,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/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_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/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_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/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_304f8037-9825-4870-8e26-ff0bc5679cce/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 f1a760a25f6e6d96f820367881f3fbbc32febc8ce03434205938078db6a21524 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:15:15,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:15:15,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:15:15,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:15:15,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:15:15,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:15:15,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:15:15,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:15:15,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:15:15,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:15:15,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:15:15,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:15:15,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:15:15,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:15:15,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:15:15,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:15:15,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:15:15,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:15:15,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:15:15,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:15:15,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:15:15,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:15:15,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:15:15,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:15:15,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:15:15,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:15:15,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:15:15,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:15:15,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:15:15,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:15:15,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:15:15,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:15:15,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:15:15,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:15:15,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:15:15,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:15:15,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:15:15,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:15:15,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:15:15,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:15:15,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:15:15,380 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:15:15,431 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:15:15,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:15:15,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:15:15,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:15:15,434 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:15:15,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:15:15,434 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:15:15,435 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:15:15,435 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:15:15,435 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:15:15,436 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:15:15,436 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:15:15,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:15:15,438 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:15:15,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:15:15,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:15:15,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:15:15,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:15:15,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:15:15,439 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:15:15,439 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:15:15,439 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:15:15,439 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:15:15,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:15:15,440 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:15:15,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:15:15,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:15:15,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:15:15,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:15:15,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:15:15,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:15:15,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:15:15,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:15:15,442 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:15:15,442 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:15:15,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:15:15,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:15:15,443 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:15:15,443 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_304f8037-9825-4870-8e26-ff0bc5679cce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1a760a25f6e6d96f820367881f3fbbc32febc8ce03434205938078db6a21524 [2021-11-23 17:15:15,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:15:15,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:15:15,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:15:15,909 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:15:15,910 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:15:15,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/email_spec27_product24.cil.c [2021-11-23 17:15:15,996 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/data/503a36d06/11e818755537437a950263509be57343/FLAG80e34578d [2021-11-23 17:15:16,749 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:15:16,750 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/sv-benchmarks/c/product-lines/email_spec27_product24.cil.c [2021-11-23 17:15:16,774 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/data/503a36d06/11e818755537437a950263509be57343/FLAG80e34578d [2021-11-23 17:15:16,937 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/data/503a36d06/11e818755537437a950263509be57343 [2021-11-23 17:15:16,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:15:16,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:15:16,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:15:16,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:15:16,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:15:16,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:15:16" (1/1) ... [2021-11-23 17:15:16,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3354c8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:16, skipping insertion in model container [2021-11-23 17:15:16,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:15:16" (1/1) ... [2021-11-23 17:15:16,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:15:17,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:15:17,715 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_304f8037-9825-4870-8e26-ff0bc5679cce/sv-benchmarks/c/product-lines/email_spec27_product24.cil.c[62587,62600] [2021-11-23 17:15:17,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:15:17,743 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 17:15:17,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:15:17,884 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_304f8037-9825-4870-8e26-ff0bc5679cce/sv-benchmarks/c/product-lines/email_spec27_product24.cil.c[62587,62600] [2021-11-23 17:15:17,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:15:17,905 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:15:18,006 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_304f8037-9825-4870-8e26-ff0bc5679cce/sv-benchmarks/c/product-lines/email_spec27_product24.cil.c[62587,62600] [2021-11-23 17:15:18,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:15:18,043 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:15:18,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:18 WrapperNode [2021-11-23 17:15:18,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:15:18,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:15:18,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:15:18,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:15:18,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:18" (1/1) ... [2021-11-23 17:15:18,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:18" (1/1) ... [2021-11-23 17:15:18,192 INFO L137 Inliner]: procedures = 132, calls = 210, calls flagged for inlining = 62, calls inlined = 57, statements flattened = 950 [2021-11-23 17:15:18,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:15:18,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:15:18,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:15:18,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:15:18,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:18" (1/1) ... [2021-11-23 17:15:18,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:18" (1/1) ... [2021-11-23 17:15:18,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:18" (1/1) ... [2021-11-23 17:15:18,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:18" (1/1) ... [2021-11-23 17:15:18,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:18" (1/1) ... [2021-11-23 17:15:18,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:18" (1/1) ... [2021-11-23 17:15:18,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:18" (1/1) ... [2021-11-23 17:15:18,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:15:18,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:15:18,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:15:18,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:15:18,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:18" (1/1) ... [2021-11-23 17:15:18,302 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:15:18,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:15:18,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:15:18,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:15:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 17:15:18,385 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 17:15:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 17:15:18,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 17:15:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-11-23 17:15:18,386 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-11-23 17:15:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 17:15:18,386 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 17:15:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-11-23 17:15:18,387 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-11-23 17:15:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 17:15:18,387 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 17:15:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 17:15:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-23 17:15:18,387 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-23 17:15:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-11-23 17:15:18,388 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-11-23 17:15:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 17:15:18,388 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 17:15:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:15:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-11-23 17:15:18,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-11-23 17:15:18,389 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 17:15:18,389 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 17:15:18,389 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 17:15:18,389 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 17:15:18,390 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 17:15:18,390 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 17:15:18,390 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2021-11-23 17:15:18,391 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2021-11-23 17:15:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:15:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2021-11-23 17:15:18,393 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2021-11-23 17:15:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 17:15:18,394 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 17:15:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 17:15:18,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 17:15:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 17:15:18,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 17:15:18,394 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 17:15:18,394 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 17:15:18,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:15:18,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:15:18,712 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:15:18,715 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:15:19,672 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:15:19,690 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:15:19,691 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:15:19,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:15:19 BoogieIcfgContainer [2021-11-23 17:15:19,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:15:19,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:15:19,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:15:19,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:15:19,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:15:16" (1/3) ... [2021-11-23 17:15:19,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd0b4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:15:19, skipping insertion in model container [2021-11-23 17:15:19,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:15:18" (2/3) ... [2021-11-23 17:15:19,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd0b4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:15:19, skipping insertion in model container [2021-11-23 17:15:19,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:15:19" (3/3) ... [2021-11-23 17:15:19,705 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec27_product24.cil.c [2021-11-23 17:15:19,711 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:15:19,711 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:15:19,770 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:15:19,777 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 17:15:19,777 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:15:19,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 333 states, 262 states have (on average 1.5229007633587786) internal successors, (399), 264 states have internal predecessors, (399), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2021-11-23 17:15:19,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-23 17:15:19,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:15:19,841 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:15:19,842 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:15:19,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:15:19,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1883857664, now seen corresponding path program 1 times [2021-11-23 17:15:19,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:15:19,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020324731] [2021-11-23 17:15:19,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:15:19,864 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:15:19,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:15:19,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:15:19,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:15:19,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:15:20,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:15:20,174 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:15:20,178 INFO L158 Benchmark]: Toolchain (without parser) took 3236.34ms. Allocated memory was 60.8MB in the beginning and 98.6MB in the end (delta: 37.7MB). Free memory was 38.1MB in the beginning and 51.0MB in the end (delta: -12.8MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2021-11-23 17:15:20,179 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 60.8MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:15:20,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1101.65ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 37.9MB in the beginning and 42.5MB in the end (delta: -4.6MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2021-11-23 17:15:20,180 INFO L158 Benchmark]: Boogie Procedure Inliner took 147.86ms. Allocated memory is still 81.8MB. Free memory was 42.5MB in the beginning and 58.4MB in the end (delta: -15.9MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2021-11-23 17:15:20,181 INFO L158 Benchmark]: Boogie Preprocessor took 99.92ms. Allocated memory is still 81.8MB. Free memory was 58.4MB in the beginning and 54.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:15:20,182 INFO L158 Benchmark]: RCFGBuilder took 1401.37ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 53.8MB in the beginning and 65.8MB in the end (delta: -12.0MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2021-11-23 17:15:20,182 INFO L158 Benchmark]: TraceAbstraction took 479.18ms. Allocated memory is still 98.6MB. Free memory was 65.8MB in the beginning and 51.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:15:20,186 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 60.8MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1101.65ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 37.9MB in the beginning and 42.5MB in the end (delta: -4.6MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 147.86ms. Allocated memory is still 81.8MB. Free memory was 42.5MB in the beginning and 58.4MB in the end (delta: -15.9MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.92ms. Allocated memory is still 81.8MB. Free memory was 58.4MB in the beginning and 54.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1401.37ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 53.8MB in the beginning and 65.8MB in the end (delta: -12.0MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * TraceAbstraction took 479.18ms. Allocated memory is still 98.6MB. Free memory was 65.8MB in the beginning and 51.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:15:20,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304f8037-9825-4870-8e26-ff0bc5679cce/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