./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_46deec76-7a07-4d75-88db-c458c78dbf9b/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_46deec76-7a07-4d75-88db-c458c78dbf9b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_46deec76-7a07-4d75-88db-c458c78dbf9b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_46deec76-7a07-4d75-88db-c458c78dbf9b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product13.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_46deec76-7a07-4d75-88db-c458c78dbf9b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_46deec76-7a07-4d75-88db-c458c78dbf9b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70d32ce76add0a705a911f06bde28b97180fa1ae ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:46:03,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:46:03,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:46:03,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:46:03,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:46:03,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:46:03,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:46:03,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:46:03,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:46:03,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:46:03,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:46:03,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:46:03,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:46:03,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:46:03,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:46:03,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:46:03,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:46:03,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:46:03,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:46:03,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:46:03,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:46:03,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:46:03,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:46:03,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:46:03,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:46:03,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:46:03,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:46:03,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:46:03,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:46:03,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:46:03,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:46:03,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:46:03,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:46:03,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:46:03,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:46:03,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:46:03,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:46:03,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:46:03,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:46:03,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:46:03,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:46:03,719 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_46deec76-7a07-4d75-88db-c458c78dbf9b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:46:03,731 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:46:03,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:46:03,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:46:03,732 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:46:03,732 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:46:03,732 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:46:03,733 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:46:03,733 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:46:03,733 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:46:03,733 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:46:03,733 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:46:03,734 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:46:03,734 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:46:03,734 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:46:03,734 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:46:03,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:46:03,735 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:46:03,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:46:03,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:46:03,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:46:03,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:46:03,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:46:03,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:46:03,737 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:46:03,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:46:03,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:46:03,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:46:03,738 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:46:03,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:46:03,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:46:03,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:46:03,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:46:03,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:46:03,739 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:46:03,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:46:03,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:46:03,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:46:03,740 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_46deec76-7a07-4d75-88db-c458c78dbf9b/bin/utaipan 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(__VERIFIER_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 -> 70d32ce76add0a705a911f06bde28b97180fa1ae [2019-11-26 02:46:03,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:46:03,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:46:03,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:46:03,879 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:46:03,880 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:46:03,880 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_46deec76-7a07-4d75-88db-c458c78dbf9b/bin/utaipan/../../sv-benchmarks/c/product-lines/email_spec4_product13.cil.c [2019-11-26 02:46:03,931 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_46deec76-7a07-4d75-88db-c458c78dbf9b/bin/utaipan/data/922dfbce8/6ec5ec25dfd246b0b3f4c26f3b396f43/FLAGfcef949fc [2019-11-26 02:46:04,494 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:46:04,495 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_46deec76-7a07-4d75-88db-c458c78dbf9b/sv-benchmarks/c/product-lines/email_spec4_product13.cil.c [2019-11-26 02:46:04,518 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_46deec76-7a07-4d75-88db-c458c78dbf9b/bin/utaipan/data/922dfbce8/6ec5ec25dfd246b0b3f4c26f3b396f43/FLAGfcef949fc [2019-11-26 02:46:04,724 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_46deec76-7a07-4d75-88db-c458c78dbf9b/bin/utaipan/data/922dfbce8/6ec5ec25dfd246b0b3f4c26f3b396f43 [2019-11-26 02:46:04,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:46:04,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:46:04,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:46:04,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:46:04,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:46:04,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:46:04" (1/1) ... [2019-11-26 02:46:04,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b42b2ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:04, skipping insertion in model container [2019-11-26 02:46:04,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:46:04" (1/1) ... [2019-11-26 02:46:04,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:46:04,814 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:46:05,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:46:05,447 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:46:05,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:46:05,645 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:46:05,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:05 WrapperNode [2019-11-26 02:46:05,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:46:05,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:46:05,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:46:05,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:46:05,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:05" (1/1) ... [2019-11-26 02:46:05,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:05" (1/1) ... [2019-11-26 02:46:05,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:46:05,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:46:05,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:46:05,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:46:05,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:05" (1/1) ... [2019-11-26 02:46:05,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:05" (1/1) ... [2019-11-26 02:46:05,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:05" (1/1) ... [2019-11-26 02:46:05,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:05" (1/1) ... [2019-11-26 02:46:05,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:05" (1/1) ... [2019-11-26 02:46:05,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:05" (1/1) ... [2019-11-26 02:46:05,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:05" (1/1) ... [2019-11-26 02:46:05,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:46:05,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:46:05,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:46:05,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:46:05,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_46deec76-7a07-4d75-88db-c458c78dbf9b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:46:05,911 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-26 02:46:05,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:46:05,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:46:05,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:46:05,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:46:11,426 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:46:11,427 INFO L284 CfgBuilder]: Removed 235 assume(true) statements. [2019-11-26 02:46:11,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:46:11 BoogieIcfgContainer [2019-11-26 02:46:11,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:46:11,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:46:11,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:46:11,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:46:11,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:46:04" (1/3) ... [2019-11-26 02:46:11,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3915af53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:46:11, skipping insertion in model container [2019-11-26 02:46:11,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:46:05" (2/3) ... [2019-11-26 02:46:11,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3915af53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:46:11, skipping insertion in model container [2019-11-26 02:46:11,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:46:11" (3/3) ... [2019-11-26 02:46:11,435 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product13.cil.c [2019-11-26 02:46:11,443 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:46:11,449 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-26 02:46:11,458 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-26 02:46:11,478 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:46:11,479 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:46:11,479 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:46:11,479 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:46:11,479 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:46:11,479 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:46:11,480 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:46:11,480 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:46:11,493 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2019-11-26 02:46:11,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:46:11,497 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:46:11,498 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:46:11,498 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:46:11,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:46:11,503 INFO L82 PathProgramCache]: Analyzing trace with hash -606932301, now seen corresponding path program 1 times [2019-11-26 02:46:11,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:46:11,509 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247294857] [2019-11-26 02:46:11,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:46:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:46:11,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:46:11,759 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247294857] [2019-11-26 02:46:11,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:46:11,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:46:11,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625234051] [2019-11-26 02:46:11,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:46:11,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:46:11,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:46:11,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:46:11,779 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2019-11-26 02:46:11,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:46:11,797 INFO L93 Difference]: Finished difference Result 54 states and 87 transitions. [2019-11-26 02:46:11,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:46:11,799 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:46:11,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:46:11,808 INFO L225 Difference]: With dead ends: 54 [2019-11-26 02:46:11,808 INFO L226 Difference]: Without dead ends: 37 [2019-11-26 02:46:11,811 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:46:11,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-26 02:46:11,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-26 02:46:11,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-26 02:46:11,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 60 transitions. [2019-11-26 02:46:11,843 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 60 transitions. Word has length 7 [2019-11-26 02:46:11,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:46:11,844 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 60 transitions. [2019-11-26 02:46:11,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:46:11,844 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2019-11-26 02:46:11,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:46:11,845 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:46:11,845 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:46:11,845 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:46:11,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:46:11,846 INFO L82 PathProgramCache]: Analyzing trace with hash -965453830, now seen corresponding path program 1 times [2019-11-26 02:46:11,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:46:11,846 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717609376] [2019-11-26 02:46:11,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:46:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:46:11,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:46:11,958 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717609376] [2019-11-26 02:46:11,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:46:11,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:46:11,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623479025] [2019-11-26 02:46:11,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:46:11,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:46:11,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:46:11,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:46:11,961 INFO L87 Difference]: Start difference. First operand 37 states and 60 transitions. Second operand 3 states. [2019-11-26 02:46:11,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:46:11,974 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2019-11-26 02:46:11,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:46:11,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-26 02:46:11,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:46:11,976 INFO L225 Difference]: With dead ends: 50 [2019-11-26 02:46:11,976 INFO L226 Difference]: Without dead ends: 39 [2019-11-26 02:46:11,977 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:46:11,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-26 02:46:11,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-26 02:46:11,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-26 02:46:11,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 62 transitions. [2019-11-26 02:46:11,983 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 62 transitions. Word has length 8 [2019-11-26 02:46:11,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:46:11,984 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 62 transitions. [2019-11-26 02:46:11,984 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:46:11,984 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 62 transitions. [2019-11-26 02:46:11,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 02:46:11,985 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:46:11,985 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:46:11,985 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:46:11,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:46:11,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1379514994, now seen corresponding path program 1 times [2019-11-26 02:46:11,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:46:11,986 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076400112] [2019-11-26 02:46:11,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:46:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:46:12,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:46:12,153 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076400112] [2019-11-26 02:46:12,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:46:12,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:46:12,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605936886] [2019-11-26 02:46:12,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:46:12,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:46:12,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:46:12,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:46:12,155 INFO L87 Difference]: Start difference. First operand 39 states and 62 transitions. Second operand 6 states. [2019-11-26 02:46:12,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:46:12,365 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2019-11-26 02:46:12,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:46:12,366 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-11-26 02:46:12,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:46:12,367 INFO L225 Difference]: With dead ends: 41 [2019-11-26 02:46:12,367 INFO L226 Difference]: Without dead ends: 39 [2019-11-26 02:46:12,367 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:46:12,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-26 02:46:12,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2019-11-26 02:46:12,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-26 02:46:12,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 60 transitions. [2019-11-26 02:46:12,374 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 60 transitions. Word has length 12 [2019-11-26 02:46:12,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:46:12,375 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 60 transitions. [2019-11-26 02:46:12,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:46:12,375 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2019-11-26 02:46:12,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 02:46:12,377 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:46:12,377 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:46:12,377 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:46:12,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:46:12,379 INFO L82 PathProgramCache]: Analyzing trace with hash -99518252, now seen corresponding path program 1 times [2019-11-26 02:46:12,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:46:12,380 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812057811] [2019-11-26 02:46:12,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:46:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:46:12,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:46:12,556 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812057811] [2019-11-26 02:46:12,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:46:12,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:46:12,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87587610] [2019-11-26 02:46:12,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:46:12,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:46:12,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:46:12,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:46:12,558 INFO L87 Difference]: Start difference. First operand 37 states and 60 transitions. Second operand 4 states. [2019-11-26 02:46:12,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:46:12,587 INFO L93 Difference]: Finished difference Result 37 states and 60 transitions. [2019-11-26 02:46:12,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:46:12,587 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-26 02:46:12,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:46:12,588 INFO L225 Difference]: With dead ends: 37 [2019-11-26 02:46:12,588 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:46:12,589 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:46:12,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:46:12,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:46:12,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:46:12,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:46:12,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-26 02:46:12,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:46:12,590 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:46:12,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:46:12,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:46:12,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:46:12,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:46:12,788 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 1866) no Hoare annotation was computed. [2019-11-26 02:46:12,789 INFO L440 ceAbstractionStarter]: At program point L2020(lines 2010 2066) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,789 INFO L440 ceAbstractionStarter]: At program point L1956(lines 1943 2071) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,789 INFO L440 ceAbstractionStarter]: At program point L2025(lines 2025 2032) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,789 INFO L440 ceAbstractionStarter]: At program point L1961(lines 1961 1968) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,789 INFO L440 ceAbstractionStarter]: At program point L2034(lines 2021 2065) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,789 INFO L440 ceAbstractionStarter]: At program point L1970(lines 1957 2070) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,789 INFO L440 ceAbstractionStarter]: At program point L2039(lines 2039 2046) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,790 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:46:12,790 INFO L440 ceAbstractionStarter]: At program point L1975(lines 1975 1982) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,790 INFO L444 ceAbstractionStarter]: For program point L1911(lines 1910 2074) no Hoare annotation was computed. [2019-11-26 02:46:12,790 INFO L440 ceAbstractionStarter]: At program point L63(lines 63 76) the Hoare annotation is: (and (= 1 ~queue_empty~0) (or (not (= ~__ste_client_privateKey0~0 0)) (= 0 ULTIMATE.start___utac_acc__SignForward_spec__1_~tmp___0~0)) (= ULTIMATE.start___utac_acc__SignForward_spec__1_~client 1)) [2019-11-26 02:46:12,790 INFO L440 ceAbstractionStarter]: At program point L63-1(lines 54 79) the Hoare annotation is: (and (= 1 ~queue_empty~0) (or (not (= ~__ste_client_privateKey0~0 0)) (= 0 ULTIMATE.start___utac_acc__SignForward_spec__1_~tmp___0~0)) (= ULTIMATE.start___utac_acc__SignForward_spec__1_~client 1)) [2019-11-26 02:46:12,790 INFO L440 ceAbstractionStarter]: At program point L63-2(lines 63 76) the Hoare annotation is: false [2019-11-26 02:46:12,790 INFO L447 ceAbstractionStarter]: At program point L63-3(lines 54 79) the Hoare annotation is: true [2019-11-26 02:46:12,791 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1866) no Hoare annotation was computed. [2019-11-26 02:46:12,791 INFO L440 ceAbstractionStarter]: At program point L2048(lines 2035 2064) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,791 INFO L444 ceAbstractionStarter]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-11-26 02:46:12,791 INFO L444 ceAbstractionStarter]: For program point L67-2(lines 67 73) no Hoare annotation was computed. [2019-11-26 02:46:12,791 INFO L440 ceAbstractionStarter]: At program point L1984(lines 1971 2069) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,791 INFO L444 ceAbstractionStarter]: For program point L1918(lines 1918 2073) no Hoare annotation was computed. [2019-11-26 02:46:12,791 INFO L440 ceAbstractionStarter]: At program point L2053(lines 2053 2060) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,791 INFO L440 ceAbstractionStarter]: At program point L2053-1(lines 1910 2074) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,792 INFO L440 ceAbstractionStarter]: At program point L1922(lines 1922 1929) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,792 INFO L444 ceAbstractionStarter]: For program point L1989(lines 1989 1993) no Hoare annotation was computed. [2019-11-26 02:46:12,792 INFO L440 ceAbstractionStarter]: At program point L1995(lines 1985 2068) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,792 INFO L440 ceAbstractionStarter]: At program point L1931(lines 1918 2073) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,792 INFO L444 ceAbstractionStarter]: For program point L1866(line 1866) no Hoare annotation was computed. [2019-11-26 02:46:12,792 INFO L444 ceAbstractionStarter]: For program point L1866-1(line 1866) no Hoare annotation was computed. [2019-11-26 02:46:12,792 INFO L440 ceAbstractionStarter]: At program point L2000(lines 2000 2007) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,793 INFO L447 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-26 02:46:12,793 INFO L444 ceAbstractionStarter]: For program point L1936(lines 1936 1940) no Hoare annotation was computed. [2019-11-26 02:46:12,793 INFO L440 ceAbstractionStarter]: At program point L1738(lines 1738 1745) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,793 INFO L447 ceAbstractionStarter]: At program point L1738-1(lines 1738 1745) the Hoare annotation is: true [2019-11-26 02:46:12,793 INFO L440 ceAbstractionStarter]: At program point L1942(lines 1932 2072) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,796 INFO L440 ceAbstractionStarter]: At program point L2075(lines 1909 2076) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,797 INFO L440 ceAbstractionStarter]: At program point L2009(lines 1996 2067) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,797 INFO L440 ceAbstractionStarter]: At program point L1682(lines 1682 1690) the Hoare annotation is: (and (= 1 ~queue_empty~0) (<= 1 ULTIMATE.start_bobToRjh_~tmp___1~0) (or (not (= ~__ste_client_privateKey0~0 0)) (= 0 ULTIMATE.start___utac_acc__SignForward_spec__1_~tmp___0~0)) (= ULTIMATE.start___utac_acc__SignForward_spec__1_~client 1)) [2019-11-26 02:46:12,797 INFO L440 ceAbstractionStarter]: At program point L1947(lines 1947 1954) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:46:12,798 INFO L444 ceAbstractionStarter]: For program point L2014(lines 2014 2018) no Hoare annotation was computed. [2019-11-26 02:46:12,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:46:12 BoogieIcfgContainer [2019-11-26 02:46:12,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:46:12,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:46:12,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:46:12,831 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:46:12,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:46:11" (3/4) ... [2019-11-26 02:46:12,834 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:46:12,887 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 421 nodes and edges [2019-11-26 02:46:12,891 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 107 nodes and edges [2019-11-26 02:46:12,895 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2019-11-26 02:46:12,899 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:46:12,903 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:46:12,907 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:46:13,119 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_46deec76-7a07-4d75-88db-c458c78dbf9b/bin/utaipan/witness.graphml [2019-11-26 02:46:13,120 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:46:13,121 INFO L168 Benchmark]: Toolchain (without parser) took 8394.31 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 323.5 MB). Free memory was 939.3 MB in the beginning and 944.8 MB in the end (delta: -5.4 MB). Peak memory consumption was 318.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:13,122 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:46:13,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 918.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -150.2 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:13,122 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:13,123 INFO L168 Benchmark]: Boogie Preprocessor took 77.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:13,123 INFO L168 Benchmark]: RCFGBuilder took 5598.32 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 179.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -69.8 MB). Peak memory consumption was 374.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:13,124 INFO L168 Benchmark]: TraceAbstraction took 1401.55 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 995.5 MB in the end (delta: 143.1 MB). Peak memory consumption was 143.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:13,124 INFO L168 Benchmark]: Witness Printer took 288.99 ms. Allocated memory is still 1.4 GB. Free memory was 995.5 MB in the beginning and 944.8 MB in the end (delta: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:46:13,126 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 918.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -150.2 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 104.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5598.32 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 179.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -69.8 MB). Peak memory consumption was 374.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1401.55 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 995.5 MB in the end (delta: 143.1 MB). Peak memory consumption was 143.1 MB. Max. memory is 11.5 GB. * Witness Printer took 288.99 ms. Allocated memory is still 1.4 GB. Free memory was 995.5 MB in the beginning and 944.8 MB in the end (delta: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1866]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1866]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 1943]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2010]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1910]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1996]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1738]: Loop Invariant Derived loop invariant: 1 == queue_empty && __ste_email_isSigned0 == 0 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: (1 == queue_empty && (!(__ste_client_privateKey0 == 0) || 0 == tmp___0)) && client == 1 - InvariantResult [Line: 1682]: Loop Invariant Derived loop invariant: ((1 == queue_empty && 1 <= tmp___1) && (!(__ste_client_privateKey0 == 0) || 0 == tmp___0)) && client == 1 - InvariantResult [Line: 1909]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1947]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2000]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2053]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1922]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1975]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2039]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1932]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1918]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1985]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (1 == queue_empty && (!(__ste_client_privateKey0 == 0) || 0 == tmp___0)) && client == 1 - InvariantResult [Line: 1971]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2035]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1738]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1961]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2025]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1957]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2021]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 2 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 230 SDtfs, 141 SDslu, 206 SDs, 0 SdLazy, 39 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 28 PreInvPairs, 35 NumberOfFragments, 259 HoareAnnotationTreeSize, 28 FomulaSimplifications, 50 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 28 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 1376 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...