./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_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_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/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_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/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_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/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 cc83a32f8f5c6143265231752530a7f576faa355052cdad9509cfbce0d0adeb3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:05:10,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:05:10,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:05:10,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:05:10,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:05:10,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:05:10,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:05:10,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:05:10,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:05:10,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:05:10,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:05:10,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:05:10,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:05:10,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:05:10,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:05:10,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:05:10,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:05:10,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:05:10,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:05:10,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:05:10,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:05:10,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:05:10,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:05:10,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:05:10,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:05:10,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:05:10,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:05:10,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:05:10,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:05:10,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:05:10,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:05:10,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:05:10,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:05:10,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:05:10,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:05:10,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:05:10,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:05:10,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:05:10,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:05:10,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:05:10,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:05:10,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:05:10,907 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:05:10,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:05:10,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:05:10,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:05:10,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:05:10,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:05:10,911 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:05:10,911 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:05:10,911 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:05:10,912 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:05:10,912 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:05:10,913 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:05:10,913 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:05:10,913 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:05:10,913 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:05:10,914 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:05:10,914 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:05:10,914 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:05:10,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:05:10,915 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:05:10,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:05:10,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:05:10,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:05:10,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:05:10,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:05:10,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:05:10,917 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:05:10,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:05:10,918 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:05:10,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:05:10,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:05:10,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:05:10,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:05:10,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:05:10,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:05:10,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:05:10,920 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:05:10,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:05:10,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:05:10,920 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:05:10,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:05:10,921 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_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc83a32f8f5c6143265231752530a7f576faa355052cdad9509cfbce0d0adeb3 [2021-11-23 17:05:11,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:05:11,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:05:11,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:05:11,259 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:05:11,260 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:05:11,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/email_spec4_product24.cil.c [2021-11-23 17:05:11,360 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/data/2d944449c/52b75d93d29041279356e8d0b949d9fa/FLAGb7c8398bb [2021-11-23 17:05:11,993 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:05:11,994 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/sv-benchmarks/c/product-lines/email_spec4_product24.cil.c [2021-11-23 17:05:12,031 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/data/2d944449c/52b75d93d29041279356e8d0b949d9fa/FLAGb7c8398bb [2021-11-23 17:05:12,188 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/data/2d944449c/52b75d93d29041279356e8d0b949d9fa [2021-11-23 17:05:12,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:05:12,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:05:12,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:05:12,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:05:12,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:05:12,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:05:12" (1/1) ... [2021-11-23 17:05:12,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1436d743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:12, skipping insertion in model container [2021-11-23 17:05:12,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:05:12" (1/1) ... [2021-11-23 17:05:12,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:05:12,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:05:12,679 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_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/sv-benchmarks/c/product-lines/email_spec4_product24.cil.c[33676,33689] [2021-11-23 17:05:12,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:05:12,983 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:05:13,079 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_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/sv-benchmarks/c/product-lines/email_spec4_product24.cil.c[33676,33689] [2021-11-23 17:05:13,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:05:13,199 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:05:13,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:13 WrapperNode [2021-11-23 17:05:13,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:05:13,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:05:13,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:05:13,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:05:13,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:13" (1/1) ... [2021-11-23 17:05:13,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:13" (1/1) ... [2021-11-23 17:05:13,356 INFO L137 Inliner]: procedures = 130, calls = 209, calls flagged for inlining = 63, calls inlined = 58, statements flattened = 1034 [2021-11-23 17:05:13,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:05:13,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:05:13,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:05:13,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:05:13,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:13" (1/1) ... [2021-11-23 17:05:13,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:13" (1/1) ... [2021-11-23 17:05:13,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:13" (1/1) ... [2021-11-23 17:05:13,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:13" (1/1) ... [2021-11-23 17:05:13,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:13" (1/1) ... [2021-11-23 17:05:13,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:13" (1/1) ... [2021-11-23 17:05:13,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:13" (1/1) ... [2021-11-23 17:05:13,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:05:13,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:05:13,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:05:13,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:05:13,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:13" (1/1) ... [2021-11-23 17:05:13,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:05:13,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:05:13,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:05:13,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:05:13,582 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-11-23 17:05:13,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-11-23 17:05:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 17:05:13,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 17:05:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 17:05:13,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 17:05:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-11-23 17:05:13,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-11-23 17:05:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 17:05:13,584 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 17:05:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-11-23 17:05:13,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-11-23 17:05:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 17:05:13,584 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 17:05:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 17:05:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-23 17:05:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-23 17:05:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-11-23 17:05:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-11-23 17:05:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 17:05:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 17:05:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:05:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-11-23 17:05:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-11-23 17:05:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 17:05:13,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 17:05:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 17:05:13,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 17:05:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 17:05:13,587 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 17:05:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 17:05:13,587 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 17:05:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 17:05:13,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 17:05:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 17:05:13,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 17:05:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:05:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 17:05:13,588 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 17:05:13,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:05:13,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:05:13,879 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:05:13,881 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:05:14,755 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:05:14,829 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 17:05:14,840 INFO L158 Benchmark]: Toolchain (without parser) took 2644.22ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 58.9MB in the beginning and 46.1MB in the end (delta: 12.8MB). Peak memory consumption was 43.9MB. Max. memory is 16.1GB. [2021-11-23 17:05:14,841 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 25.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:05:14,844 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1005.79ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 58.7MB in the beginning and 65.3MB in the end (delta: -6.6MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2021-11-23 17:05:14,845 INFO L158 Benchmark]: Boogie Procedure Inliner took 155.75ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 59.6MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:05:14,846 INFO L158 Benchmark]: Boogie Preprocessor took 99.06ms. Allocated memory is still 117.4MB. Free memory was 59.0MB in the beginning and 55.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:05:14,848 INFO L158 Benchmark]: RCFGBuilder took 1378.72ms. Allocated memory is still 117.4MB. Free memory was 55.4MB in the beginning and 46.1MB in the end (delta: 9.3MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2021-11-23 17:05:14,858 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 25.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1005.79ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 58.7MB in the beginning and 65.3MB in the end (delta: -6.6MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 155.75ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 59.6MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.06ms. Allocated memory is still 117.4MB. Free memory was 59.0MB in the beginning and 55.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1378.72ms. Allocated memory is still 117.4MB. Free memory was 55.4MB in the beginning and 46.1MB in the end (delta: 9.3MB). Peak memory consumption was 18.3MB. 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 17:05:14,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/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_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/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_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/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_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/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 cc83a32f8f5c6143265231752530a7f576faa355052cdad9509cfbce0d0adeb3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:05:17,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:05:17,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:05:17,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:05:17,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:05:17,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:05:17,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:05:17,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:05:17,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:05:17,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:05:17,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:05:17,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:05:17,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:05:17,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:05:17,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:05:17,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:05:17,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:05:17,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:05:17,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:05:17,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:05:17,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:05:17,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:05:17,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:05:17,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:05:17,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:05:17,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:05:17,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:05:17,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:05:17,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:05:17,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:05:17,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:05:17,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:05:17,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:05:17,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:05:17,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:05:17,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:05:17,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:05:17,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:05:17,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:05:17,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:05:17,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:05:17,535 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:05:17,562 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:05:17,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:05:17,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:05:17,563 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:05:17,565 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:05:17,565 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:05:17,565 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:05:17,565 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:05:17,566 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:05:17,566 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:05:17,567 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:05:17,567 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:05:17,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:05:17,569 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:05:17,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:05:17,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:05:17,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:05:17,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:05:17,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:05:17,570 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:05:17,570 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:05:17,571 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:05:17,571 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:05:17,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:05:17,571 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:05:17,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:05:17,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:05:17,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:05:17,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:05:17,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:05:17,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:05:17,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:05:17,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:05:17,573 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:05:17,574 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:05:17,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:05:17,574 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:05:17,574 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:05:17,575 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_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc83a32f8f5c6143265231752530a7f576faa355052cdad9509cfbce0d0adeb3 [2021-11-23 17:05:17,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:05:17,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:05:17,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:05:17,998 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:05:17,999 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:05:18,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/email_spec4_product24.cil.c [2021-11-23 17:05:18,081 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/data/46e37e69d/17a51f3d3b5b4109977b558857f81248/FLAGa505c631b [2021-11-23 17:05:18,820 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:05:18,820 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/sv-benchmarks/c/product-lines/email_spec4_product24.cil.c [2021-11-23 17:05:18,866 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/data/46e37e69d/17a51f3d3b5b4109977b558857f81248/FLAGa505c631b [2021-11-23 17:05:19,067 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/data/46e37e69d/17a51f3d3b5b4109977b558857f81248 [2021-11-23 17:05:19,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:05:19,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:05:19,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:05:19,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:05:19,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:05:19,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:05:19" (1/1) ... [2021-11-23 17:05:19,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d1e90cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:19, skipping insertion in model container [2021-11-23 17:05:19,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:05:19" (1/1) ... [2021-11-23 17:05:19,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:05:19,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:05:19,530 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_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/sv-benchmarks/c/product-lines/email_spec4_product24.cil.c[33676,33689] [2021-11-23 17:05:19,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:05:19,804 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 17:05:19,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:05:19,888 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_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/sv-benchmarks/c/product-lines/email_spec4_product24.cil.c[33676,33689] [2021-11-23 17:05:19,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:05:19,942 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:05:19,995 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_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/sv-benchmarks/c/product-lines/email_spec4_product24.cil.c[33676,33689] [2021-11-23 17:05:20,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:05:20,115 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:05:20,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:20 WrapperNode [2021-11-23 17:05:20,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:05:20,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:05:20,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:05:20,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:05:20,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:20" (1/1) ... [2021-11-23 17:05:20,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:20" (1/1) ... [2021-11-23 17:05:20,271 INFO L137 Inliner]: procedures = 132, calls = 209, calls flagged for inlining = 63, calls inlined = 58, statements flattened = 984 [2021-11-23 17:05:20,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:05:20,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:05:20,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:05:20,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:05:20,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:20" (1/1) ... [2021-11-23 17:05:20,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:20" (1/1) ... [2021-11-23 17:05:20,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:20" (1/1) ... [2021-11-23 17:05:20,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:20" (1/1) ... [2021-11-23 17:05:20,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:20" (1/1) ... [2021-11-23 17:05:20,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:20" (1/1) ... [2021-11-23 17:05:20,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:20" (1/1) ... [2021-11-23 17:05:20,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:05:20,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:05:20,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:05:20,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:05:20,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:20" (1/1) ... [2021-11-23 17:05:20,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:05:20,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:05:20,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:05:20,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:05:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2021-11-23 17:05:20,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2021-11-23 17:05:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-11-23 17:05:20,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-11-23 17:05:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-11-23 17:05:20,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-11-23 17:05:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-11-23 17:05:20,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-11-23 17:05:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2021-11-23 17:05:20,471 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2021-11-23 17:05:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2021-11-23 17:05:20,472 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2021-11-23 17:05:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2021-11-23 17:05:20,472 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2021-11-23 17:05:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-23 17:05:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2021-11-23 17:05:20,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2021-11-23 17:05:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2021-11-23 17:05:20,473 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2021-11-23 17:05:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-11-23 17:05:20,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-11-23 17:05:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:05:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2021-11-23 17:05:20,474 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2021-11-23 17:05:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2021-11-23 17:05:20,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2021-11-23 17:05:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2021-11-23 17:05:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2021-11-23 17:05:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-11-23 17:05:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-11-23 17:05:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:05:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-11-23 17:05:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-11-23 17:05:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2021-11-23 17:05:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2021-11-23 17:05:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-11-23 17:05:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-11-23 17:05:20,477 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2021-11-23 17:05:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2021-11-23 17:05:20,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:05:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:05:20,731 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:05:20,733 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:05:21,761 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:05:21,772 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:05:21,772 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:05:21,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:05:21 BoogieIcfgContainer [2021-11-23 17:05:21,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:05:21,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:05:21,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:05:21,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:05:21,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:05:19" (1/3) ... [2021-11-23 17:05:21,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e72d7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:05:21, skipping insertion in model container [2021-11-23 17:05:21,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:20" (2/3) ... [2021-11-23 17:05:21,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e72d7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:05:21, skipping insertion in model container [2021-11-23 17:05:21,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:05:21" (3/3) ... [2021-11-23 17:05:21,783 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec4_product24.cil.c [2021-11-23 17:05:21,789 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:05:21,789 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:05:21,842 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:05:21,849 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 17:05:21,849 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:05:21,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 327 states, 259 states have (on average 1.528957528957529) internal successors, (396), 261 states have internal predecessors, (396), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2021-11-23 17:05:21,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-23 17:05:21,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:05:21,925 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] [2021-11-23 17:05:21,925 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:05:21,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:05:21,931 INFO L85 PathProgramCache]: Analyzing trace with hash -487814917, now seen corresponding path program 1 times [2021-11-23 17:05:21,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:05:21,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85615616] [2021-11-23 17:05:21,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:05:21,947 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:05:21,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:05:21,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:05:21,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:05:22,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:05:22,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:05:22,265 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 17:05:22,272 INFO L158 Benchmark]: Toolchain (without parser) took 3199.44ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 46.0MB in the beginning and 74.3MB in the end (delta: -28.3MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2021-11-23 17:05:22,272 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 69.2MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:05:22,274 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1043.97ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 45.7MB in the beginning and 68.6MB in the end (delta: -22.9MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2021-11-23 17:05:22,275 INFO L158 Benchmark]: Boogie Procedure Inliner took 154.66ms. Allocated memory is still 109.1MB. Free memory was 68.6MB in the beginning and 62.7MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:05:22,276 INFO L158 Benchmark]: Boogie Preprocessor took 90.23ms. Allocated memory is still 109.1MB. Free memory was 62.7MB in the beginning and 86.9MB in the end (delta: -24.2MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-11-23 17:05:22,277 INFO L158 Benchmark]: RCFGBuilder took 1411.79ms. Allocated memory is still 109.1MB. Free memory was 86.9MB in the beginning and 38.6MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2021-11-23 17:05:22,279 INFO L158 Benchmark]: TraceAbstraction took 492.83ms. Allocated memory is still 109.1MB. Free memory was 38.3MB in the beginning and 74.3MB in the end (delta: -36.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:05:22,289 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 69.2MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1043.97ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 45.7MB in the beginning and 68.6MB in the end (delta: -22.9MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 154.66ms. Allocated memory is still 109.1MB. Free memory was 68.6MB in the beginning and 62.7MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.23ms. Allocated memory is still 109.1MB. Free memory was 62.7MB in the beginning and 86.9MB in the end (delta: -24.2MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1411.79ms. Allocated memory is still 109.1MB. Free memory was 86.9MB in the beginning and 38.6MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 492.83ms. Allocated memory is still 109.1MB. Free memory was 38.3MB in the beginning and 74.3MB in the end (delta: -36.0MB). There was no memory consumed. 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 17:05:22,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1f855b-cfc8-4db9-a0ba-ede6e4ced48c/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