./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product28.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_287ba44e-3b7a-41d5-bb9c-5020309dcbf5/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_287ba44e-3b7a-41d5-bb9c-5020309dcbf5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_287ba44e-3b7a-41d5-bb9c-5020309dcbf5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_287ba44e-3b7a-41d5-bb9c-5020309dcbf5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product28.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_287ba44e-3b7a-41d5-bb9c-5020309dcbf5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_287ba44e-3b7a-41d5-bb9c-5020309dcbf5/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 c155eed8904feb91bc357673889a45f80c4d03bf ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:43:48,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:43:48,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:43:48,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:43:48,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:43:48,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:43:48,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:43:48,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:43:48,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:43:48,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:43:48,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:43:48,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:43:48,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:43:48,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:43:48,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:43:48,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:43:48,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:43:48,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:43:48,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:43:48,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:43:48,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:43:48,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:43:48,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:43:48,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:43:48,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:43:48,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:43:48,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:43:48,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:43:48,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:43:48,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:43:48,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:43:48,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:43:48,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:43:48,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:43:48,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:43:48,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:43:48,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:43:48,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:43:48,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:43:48,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:43:48,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:43:48,732 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_287ba44e-3b7a-41d5-bb9c-5020309dcbf5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:43:48,745 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:43:48,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:43:48,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:43:48,747 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:43:48,747 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:43:48,747 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:43:48,747 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:43:48,748 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:43:48,748 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:43:48,748 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:43:48,748 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:43:48,748 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:43:48,749 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:43:48,749 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:43:48,749 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:43:48,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:43:48,750 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:43:48,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:43:48,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:43:48,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:43:48,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:43:48,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:43:48,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:43:48,752 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:43:48,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:43:48,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:43:48,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:43:48,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:43:48,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:43:48,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:43:48,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:43:48,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:43:48,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:43:48,754 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:43:48,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:43:48,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:43:48,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:43:48,755 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_287ba44e-3b7a-41d5-bb9c-5020309dcbf5/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 -> c155eed8904feb91bc357673889a45f80c4d03bf [2019-11-26 02:43:48,897 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:43:48,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:43:48,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:43:48,912 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:43:48,912 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:43:48,913 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_287ba44e-3b7a-41d5-bb9c-5020309dcbf5/bin/utaipan/../../sv-benchmarks/c/product-lines/email_spec4_product28.cil.c [2019-11-26 02:43:48,974 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_287ba44e-3b7a-41d5-bb9c-5020309dcbf5/bin/utaipan/data/f822a4a46/ea867616c0444df7b448b6ab11302291/FLAG4e168004f [2019-11-26 02:43:49,533 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:43:49,534 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_287ba44e-3b7a-41d5-bb9c-5020309dcbf5/sv-benchmarks/c/product-lines/email_spec4_product28.cil.c [2019-11-26 02:43:49,558 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_287ba44e-3b7a-41d5-bb9c-5020309dcbf5/bin/utaipan/data/f822a4a46/ea867616c0444df7b448b6ab11302291/FLAG4e168004f [2019-11-26 02:43:49,982 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_287ba44e-3b7a-41d5-bb9c-5020309dcbf5/bin/utaipan/data/f822a4a46/ea867616c0444df7b448b6ab11302291 [2019-11-26 02:43:49,984 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:43:49,985 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:43:49,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:43:49,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:43:49,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:43:49,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:43:49" (1/1) ... [2019-11-26 02:43:49,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31191da5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:49, skipping insertion in model container [2019-11-26 02:43:49,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:43:49" (1/1) ... [2019-11-26 02:43:50,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:43:50,066 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:43:50,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:43:50,761 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:43:50,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:43:50,949 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:43:50,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:50 WrapperNode [2019-11-26 02:43:50,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:43:50,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:43:50,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:43:50,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:43:50,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:50" (1/1) ... [2019-11-26 02:43:50,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:50" (1/1) ... [2019-11-26 02:43:51,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:43:51,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:43:51,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:43:51,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:43:51,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:50" (1/1) ... [2019-11-26 02:43:51,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:50" (1/1) ... [2019-11-26 02:43:51,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:50" (1/1) ... [2019-11-26 02:43:51,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:50" (1/1) ... [2019-11-26 02:43:51,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:50" (1/1) ... [2019-11-26 02:43:51,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:50" (1/1) ... [2019-11-26 02:43:51,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:50" (1/1) ... [2019-11-26 02:43:51,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:43:51,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:43:51,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:43:51,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:43:51,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_287ba44e-3b7a-41d5-bb9c-5020309dcbf5/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 02:43:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-26 02:43:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:43:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:43:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:43:51,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:43:58,532 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:43:58,532 INFO L284 CfgBuilder]: Removed 291 assume(true) statements. [2019-11-26 02:43:58,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:43:58 BoogieIcfgContainer [2019-11-26 02:43:58,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:43:58,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:43:58,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:43:58,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:43:58,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:43:49" (1/3) ... [2019-11-26 02:43:58,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48eb66b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:43:58, skipping insertion in model container [2019-11-26 02:43:58,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:50" (2/3) ... [2019-11-26 02:43:58,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48eb66b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:43:58, skipping insertion in model container [2019-11-26 02:43:58,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:43:58" (3/3) ... [2019-11-26 02:43:58,543 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product28.cil.c [2019-11-26 02:43:58,552 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:43:58,559 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-26 02:43:58,569 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-26 02:43:58,595 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:43:58,595 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:43:58,595 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:43:58,596 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:43:58,596 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:43:58,596 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:43:58,596 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:43:58,596 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:43:58,612 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2019-11-26 02:43:58,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:43:58,622 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:43:58,623 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:43:58,624 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:43:58,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:43:58,629 INFO L82 PathProgramCache]: Analyzing trace with hash 584500102, now seen corresponding path program 1 times [2019-11-26 02:43:58,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:43:58,639 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681187803] [2019-11-26 02:43:58,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:43:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:58,915 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 02:43:58,915 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681187803] [2019-11-26 02:43:58,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:43:58,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:43:58,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266031695] [2019-11-26 02:43:58,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:43:58,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:43:58,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:43:58,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:43:58,936 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2019-11-26 02:43:58,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:43:58,956 INFO L93 Difference]: Finished difference Result 54 states and 87 transitions. [2019-11-26 02:43:58,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:43:58,957 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:43:58,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:43:58,967 INFO L225 Difference]: With dead ends: 54 [2019-11-26 02:43:58,967 INFO L226 Difference]: Without dead ends: 37 [2019-11-26 02:43:58,970 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 02:43:58,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-26 02:43:59,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-26 02:43:59,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-26 02:43:59,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 60 transitions. [2019-11-26 02:43:59,005 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 60 transitions. Word has length 7 [2019-11-26 02:43:59,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:43:59,006 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 60 transitions. [2019-11-26 02:43:59,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:43:59,006 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2019-11-26 02:43:59,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:43:59,007 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:43:59,007 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:43:59,007 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:43:59,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:43:59,008 INFO L82 PathProgramCache]: Analyzing trace with hash -120085650, now seen corresponding path program 1 times [2019-11-26 02:43:59,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:43:59,008 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134224215] [2019-11-26 02:43:59,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:43:59,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:59,135 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 02:43:59,136 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134224215] [2019-11-26 02:43:59,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:43:59,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:43:59,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996056342] [2019-11-26 02:43:59,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:43:59,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:43:59,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:43:59,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:43:59,138 INFO L87 Difference]: Start difference. First operand 37 states and 60 transitions. Second operand 3 states. [2019-11-26 02:43:59,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:43:59,165 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2019-11-26 02:43:59,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:43:59,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-26 02:43:59,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:43:59,167 INFO L225 Difference]: With dead ends: 50 [2019-11-26 02:43:59,167 INFO L226 Difference]: Without dead ends: 39 [2019-11-26 02:43:59,168 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 02:43:59,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-26 02:43:59,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-26 02:43:59,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-26 02:43:59,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 62 transitions. [2019-11-26 02:43:59,181 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 62 transitions. Word has length 8 [2019-11-26 02:43:59,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:43:59,182 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 62 transitions. [2019-11-26 02:43:59,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:43:59,182 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 62 transitions. [2019-11-26 02:43:59,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 02:43:59,184 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:43:59,184 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:43:59,184 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:43:59,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:43:59,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1438447429, now seen corresponding path program 1 times [2019-11-26 02:43:59,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:43:59,186 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900287607] [2019-11-26 02:43:59,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:43:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:59,456 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 02:43:59,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900287607] [2019-11-26 02:43:59,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:43:59,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:43:59,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995338058] [2019-11-26 02:43:59,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:43:59,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:43:59,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:43:59,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:43:59,458 INFO L87 Difference]: Start difference. First operand 39 states and 62 transitions. Second operand 6 states. [2019-11-26 02:43:59,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:43:59,717 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2019-11-26 02:43:59,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:43:59,719 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-11-26 02:43:59,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:43:59,720 INFO L225 Difference]: With dead ends: 41 [2019-11-26 02:43:59,720 INFO L226 Difference]: Without dead ends: 39 [2019-11-26 02:43:59,720 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 02:43:59,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-26 02:43:59,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2019-11-26 02:43:59,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-26 02:43:59,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 60 transitions. [2019-11-26 02:43:59,728 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 60 transitions. Word has length 12 [2019-11-26 02:43:59,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:43:59,729 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 60 transitions. [2019-11-26 02:43:59,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:43:59,729 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2019-11-26 02:43:59,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 02:43:59,730 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:43:59,730 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:43:59,730 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:43:59,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:43:59,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1417808419, now seen corresponding path program 1 times [2019-11-26 02:43:59,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:43:59,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663072422] [2019-11-26 02:43:59,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:43:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:59,858 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 02:43:59,859 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663072422] [2019-11-26 02:43:59,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:43:59,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:43:59,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630482522] [2019-11-26 02:43:59,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:43:59,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:43:59,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:43:59,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:43:59,860 INFO L87 Difference]: Start difference. First operand 37 states and 60 transitions. Second operand 4 states. [2019-11-26 02:43:59,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:43:59,892 INFO L93 Difference]: Finished difference Result 37 states and 60 transitions. [2019-11-26 02:43:59,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:43:59,892 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-26 02:43:59,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:43:59,893 INFO L225 Difference]: With dead ends: 37 [2019-11-26 02:43:59,893 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:43:59,893 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 02:43:59,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:43:59,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:43:59,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:43:59,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:43:59,894 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-26 02:43:59,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:43:59,894 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:43:59,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:43:59,895 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:43:59,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:43:59,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:44:00,128 INFO L440 ceAbstractionStarter]: At program point L1033(lines 1020 1064) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,128 INFO L440 ceAbstractionStarter]: At program point L1038(lines 1038 1045) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,128 INFO L444 ceAbstractionStarter]: For program point L910(lines 909 1073) no Hoare annotation was computed. [2019-11-26 02:44:00,128 INFO L440 ceAbstractionStarter]: At program point L1047(lines 1034 1063) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,128 INFO L444 ceAbstractionStarter]: For program point L917(lines 917 1072) no Hoare annotation was computed. [2019-11-26 02:44:00,128 INFO L440 ceAbstractionStarter]: At program point L1052(lines 1052 1059) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,128 INFO L440 ceAbstractionStarter]: At program point L1052-1(lines 909 1073) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,129 INFO L440 ceAbstractionStarter]: At program point L921(lines 921 928) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,129 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 440) no Hoare annotation was computed. [2019-11-26 02:44:00,129 INFO L440 ceAbstractionStarter]: At program point L2379(lines 2379 2387) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ULTIMATE.start_bobToRjh_~tmp___1~4 1) (= ULTIMATE.start___utac_acc__SignForward_spec__1_~client 1) (or (= 0 ULTIMATE.start___utac_acc__SignForward_spec__1_~tmp___0~9) (not (= ~__ste_client_privateKey0~0 0)))) [2019-11-26 02:44:00,129 INFO L440 ceAbstractionStarter]: At program point L930(lines 917 1072) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,129 INFO L444 ceAbstractionStarter]: For program point L935(lines 935 939) no Hoare annotation was computed. [2019-11-26 02:44:00,129 INFO L440 ceAbstractionStarter]: At program point L941(lines 931 1071) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,129 INFO L440 ceAbstractionStarter]: At program point L1074(lines 908 1075) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,130 INFO L440 ceAbstractionStarter]: At program point L946(lines 946 953) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,130 INFO L440 ceAbstractionStarter]: At program point L955(lines 942 1070) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,130 INFO L440 ceAbstractionStarter]: At program point L960(lines 960 967) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,130 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 440) no Hoare annotation was computed. [2019-11-26 02:44:00,130 INFO L444 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-11-26 02:44:00,130 INFO L444 ceAbstractionStarter]: For program point L440-1(line 440) no Hoare annotation was computed. [2019-11-26 02:44:00,130 INFO L440 ceAbstractionStarter]: At program point L969(lines 956 1069) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,134 INFO L440 ceAbstractionStarter]: At program point L974(lines 974 981) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,135 INFO L447 ceAbstractionStarter]: At program point L2435-1(lines 2435 2442) the Hoare annotation is: true [2019-11-26 02:44:00,135 INFO L440 ceAbstractionStarter]: At program point L2435(lines 2435 2442) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,136 INFO L440 ceAbstractionStarter]: At program point L2568(lines 2568 2581) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ULTIMATE.start___utac_acc__SignForward_spec__1_~client 1) (or (= 0 ULTIMATE.start___utac_acc__SignForward_spec__1_~tmp___0~9) (not (= ~__ste_client_privateKey0~0 0)))) [2019-11-26 02:44:00,136 INFO L440 ceAbstractionStarter]: At program point L2568-2(lines 2568 2581) the Hoare annotation is: false [2019-11-26 02:44:00,138 INFO L440 ceAbstractionStarter]: At program point L2568-1(lines 2559 2584) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ULTIMATE.start___utac_acc__SignForward_spec__1_~client 1) (or (= 0 ULTIMATE.start___utac_acc__SignForward_spec__1_~tmp___0~9) (not (= ~__ste_client_privateKey0~0 0)))) [2019-11-26 02:44:00,139 INFO L447 ceAbstractionStarter]: At program point L2568-3(lines 2559 2584) the Hoare annotation is: true [2019-11-26 02:44:00,139 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:44:00,139 INFO L440 ceAbstractionStarter]: At program point L983(lines 970 1068) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,139 INFO L444 ceAbstractionStarter]: For program point L2572(lines 2572 2578) no Hoare annotation was computed. [2019-11-26 02:44:00,139 INFO L444 ceAbstractionStarter]: For program point L2572-2(lines 2572 2578) no Hoare annotation was computed. [2019-11-26 02:44:00,139 INFO L444 ceAbstractionStarter]: For program point L988(lines 988 992) no Hoare annotation was computed. [2019-11-26 02:44:00,140 INFO L440 ceAbstractionStarter]: At program point L994(lines 984 1067) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,140 INFO L440 ceAbstractionStarter]: At program point L999(lines 999 1006) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,140 INFO L440 ceAbstractionStarter]: At program point L1008(lines 995 1066) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,140 INFO L447 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-26 02:44:00,140 INFO L444 ceAbstractionStarter]: For program point L1013(lines 1013 1017) no Hoare annotation was computed. [2019-11-26 02:44:00,141 INFO L440 ceAbstractionStarter]: At program point L1019(lines 1009 1065) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,141 INFO L440 ceAbstractionStarter]: At program point L1024(lines 1024 1031) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= ~bob~0 1) (= ~__ste_email_isSigned0~0 0)) [2019-11-26 02:44:00,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:44:00 BoogieIcfgContainer [2019-11-26 02:44:00,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:44:00,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:44:00,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:44:00,184 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:44:00,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:43:58" (3/4) ... [2019-11-26 02:44:00,188 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:44:00,248 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 533 nodes and edges [2019-11-26 02:44:00,254 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 129 nodes and edges [2019-11-26 02:44:00,260 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2019-11-26 02:44:00,266 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:44:00,271 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:44:00,277 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:44:00,538 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_287ba44e-3b7a-41d5-bb9c-5020309dcbf5/bin/utaipan/witness.graphml [2019-11-26 02:44:00,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:44:00,541 INFO L168 Benchmark]: Toolchain (without parser) took 10554.44 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 302.5 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -78.9 MB). Peak memory consumption was 223.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:00,542 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:44:00,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 964.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -125.4 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:00,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 145.73 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:00,544 INFO L168 Benchmark]: Boogie Preprocessor took 158.49 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:00,544 INFO L168 Benchmark]: RCFGBuilder took 7278.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 176.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -180.9 MB). Peak memory consumption was 292.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:00,545 INFO L168 Benchmark]: TraceAbstraction took 1649.33 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 154.2 MB). Peak memory consumption was 154.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:00,545 INFO L168 Benchmark]: Witness Printer took 354.03 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:00,547 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 964.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -125.4 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 145.73 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 158.49 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 7278.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 176.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -180.9 MB). Peak memory consumption was 292.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1649.33 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 154.2 MB). Peak memory consumption was 154.2 MB. Max. memory is 11.5 GB. * Witness Printer took 354.03 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 440]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 440]: 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: 2435]: Loop Invariant Derived loop invariant: 1 == queue_empty && __ste_email_isSigned0 == 0 - InvariantResult [Line: 921]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 974]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2435]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 931]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 917]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 984]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1034]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 970]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1020]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 956]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2379]: Loop Invariant Derived loop invariant: ((1 == queue_empty && tmp___1 == 1) && client == 1) && (0 == tmp___0 || !(__ste_client_privateKey0 == 0)) - InvariantResult [Line: 960]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1024]: 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: 2559]: Loop Invariant Derived loop invariant: (1 == queue_empty && client == 1) && (0 == tmp___0 || !(__ste_client_privateKey0 == 0)) - InvariantResult [Line: 946]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 908]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2568]: Loop Invariant Derived loop invariant: (1 == queue_empty && client == 1) && (0 == tmp___0 || !(__ste_client_privateKey0 == 0)) - InvariantResult [Line: 999]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2568]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1052]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 1009]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 942]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 995]: Loop Invariant Derived loop invariant: (1 == queue_empty && bob == 1) && __ste_email_isSigned0 == 0 - InvariantResult [Line: 2559]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 2 error locations. Result: SAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 228 SDtfs, 141 SDslu, 205 SDs, 0 SdLazy, 42 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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, 0.4s 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...