./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product12.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_088f630e-7854-4037-984a-6081b94a26d7/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_088f630e-7854-4037-984a-6081b94a26d7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_088f630e-7854-4037-984a-6081b94a26d7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_088f630e-7854-4037-984a-6081b94a26d7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product12.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_088f630e-7854-4037-984a-6081b94a26d7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_088f630e-7854-4037-984a-6081b94a26d7/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 d8be154d3e1e3530184c878a0d9a3b350197adb1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:54:18,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:54:18,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:54:18,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:54:18,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:54:18,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:54:18,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:54:18,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:54:18,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:54:18,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:54:18,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:54:18,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:54:18,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:54:18,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:54:18,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:54:18,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:54:18,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:54:18,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:54:18,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:54:18,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:54:18,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:54:18,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:54:18,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:54:18,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:54:18,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:54:18,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:54:18,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:54:18,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:54:18,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:54:18,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:54:18,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:54:18,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:54:18,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:54:18,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:54:18,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:54:18,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:54:18,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:54:18,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:54:18,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:54:18,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:54:18,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:54:18,576 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_088f630e-7854-4037-984a-6081b94a26d7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:54:18,595 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:54:18,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:54:18,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:54:18,597 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:54:18,597 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:54:18,597 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:54:18,597 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:54:18,597 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:54:18,598 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:54:18,598 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:54:18,599 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:54:18,599 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:54:18,599 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:54:18,599 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:54:18,600 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:54:18,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:54:18,600 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:54:18,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:54:18,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:54:18,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:54:18,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:54:18,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:54:18,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:54:18,602 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:54:18,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:54:18,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:54:18,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:54:18,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:54:18,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:54:18,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:54:18,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:54:18,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:54:18,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:54:18,604 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:54:18,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:54:18,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:54:18,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:54:18,605 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_088f630e-7854-4037-984a-6081b94a26d7/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 -> d8be154d3e1e3530184c878a0d9a3b350197adb1 [2019-11-26 02:54:18,786 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:54:18,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:54:18,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:54:18,800 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:54:18,800 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:54:18,801 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_088f630e-7854-4037-984a-6081b94a26d7/bin/utaipan/../../sv-benchmarks/c/product-lines/email_spec1_product12.cil.c [2019-11-26 02:54:18,860 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_088f630e-7854-4037-984a-6081b94a26d7/bin/utaipan/data/5e0189bb5/90616e317f3040cca8b45521d97477fa/FLAG3e58878a8 [2019-11-26 02:54:19,442 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:54:19,445 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_088f630e-7854-4037-984a-6081b94a26d7/sv-benchmarks/c/product-lines/email_spec1_product12.cil.c [2019-11-26 02:54:19,465 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_088f630e-7854-4037-984a-6081b94a26d7/bin/utaipan/data/5e0189bb5/90616e317f3040cca8b45521d97477fa/FLAG3e58878a8 [2019-11-26 02:54:19,711 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_088f630e-7854-4037-984a-6081b94a26d7/bin/utaipan/data/5e0189bb5/90616e317f3040cca8b45521d97477fa [2019-11-26 02:54:19,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:54:19,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:54:19,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:54:19,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:54:19,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:54:19,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:54:19" (1/1) ... [2019-11-26 02:54:19,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e592e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:19, skipping insertion in model container [2019-11-26 02:54:19,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:54:19" (1/1) ... [2019-11-26 02:54:19,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:54:19,808 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:54:20,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:54:20,436 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:54:20,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:54:20,658 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:54:20,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:20 WrapperNode [2019-11-26 02:54:20,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:54:20,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:54:20,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:54:20,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:54:20,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:20" (1/1) ... [2019-11-26 02:54:20,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:20" (1/1) ... [2019-11-26 02:54:20,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:54:20,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:54:20,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:54:20,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:54:20,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:20" (1/1) ... [2019-11-26 02:54:20,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:20" (1/1) ... [2019-11-26 02:54:20,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:20" (1/1) ... [2019-11-26 02:54:20,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:20" (1/1) ... [2019-11-26 02:54:20,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:20" (1/1) ... [2019-11-26 02:54:20,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:20" (1/1) ... [2019-11-26 02:54:20,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:20" (1/1) ... [2019-11-26 02:54:20,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:54:20,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:54:20,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:54:20,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:54:20,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088f630e-7854-4037-984a-6081b94a26d7/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 02:54:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-26 02:54:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:54:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:54:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:54:20,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:54:27,166 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:54:27,166 INFO L284 CfgBuilder]: Removed 227 assume(true) statements. [2019-11-26 02:54:27,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:54:27 BoogieIcfgContainer [2019-11-26 02:54:27,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:54:27,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:54:27,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:54:27,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:54:27,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:54:19" (1/3) ... [2019-11-26 02:54:27,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1083fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:54:27, skipping insertion in model container [2019-11-26 02:54:27,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:54:20" (2/3) ... [2019-11-26 02:54:27,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1083fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:54:27, skipping insertion in model container [2019-11-26 02:54:27,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:54:27" (3/3) ... [2019-11-26 02:54:27,180 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product12.cil.c [2019-11-26 02:54:27,189 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:54:27,198 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-26 02:54:27,207 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-26 02:54:27,230 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:54:27,230 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:54:27,230 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:54:27,230 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:54:27,230 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:54:27,231 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:54:27,231 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:54:27,231 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:54:27,246 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2019-11-26 02:54:27,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:54:27,252 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:54:27,253 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:54:27,254 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:54:27,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:54:27,260 INFO L82 PathProgramCache]: Analyzing trace with hash -551540187, now seen corresponding path program 1 times [2019-11-26 02:54:27,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:54:27,269 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826996871] [2019-11-26 02:54:27,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:54:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:54:27,581 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 02:54:27,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826996871] [2019-11-26 02:54:27,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:54:27,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:54:27,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797989901] [2019-11-26 02:54:27,589 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:54:27,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:54:27,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:54:27,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:54:27,604 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2019-11-26 02:54:27,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:54:27,629 INFO L93 Difference]: Finished difference Result 54 states and 87 transitions. [2019-11-26 02:54:27,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:54:27,631 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:54:27,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:54:27,645 INFO L225 Difference]: With dead ends: 54 [2019-11-26 02:54:27,645 INFO L226 Difference]: Without dead ends: 37 [2019-11-26 02:54:27,649 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 02:54:27,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-26 02:54:27,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-26 02:54:27,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-26 02:54:27,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 60 transitions. [2019-11-26 02:54:27,687 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 60 transitions. Word has length 7 [2019-11-26 02:54:27,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:54:27,687 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 60 transitions. [2019-11-26 02:54:27,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:54:27,688 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2019-11-26 02:54:27,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:54:27,688 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:54:27,688 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:54:27,689 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:54:27,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:54:27,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1374363402, now seen corresponding path program 1 times [2019-11-26 02:54:27,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:54:27,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110053560] [2019-11-26 02:54:27,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:54:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:54:27,830 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 02:54:27,831 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110053560] [2019-11-26 02:54:27,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:54:27,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:54:27,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820876004] [2019-11-26 02:54:27,832 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:54:27,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:54:27,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:54:27,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:54:27,833 INFO L87 Difference]: Start difference. First operand 37 states and 60 transitions. Second operand 3 states. [2019-11-26 02:54:27,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:54:27,844 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2019-11-26 02:54:27,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:54:27,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-26 02:54:27,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:54:27,846 INFO L225 Difference]: With dead ends: 50 [2019-11-26 02:54:27,846 INFO L226 Difference]: Without dead ends: 39 [2019-11-26 02:54:27,847 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 02:54:27,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-26 02:54:27,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-26 02:54:27,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-26 02:54:27,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 62 transitions. [2019-11-26 02:54:27,854 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 62 transitions. Word has length 8 [2019-11-26 02:54:27,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:54:27,855 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 62 transitions. [2019-11-26 02:54:27,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:54:27,855 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 62 transitions. [2019-11-26 02:54:27,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 02:54:27,856 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:54:27,856 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:54:27,856 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:54:27,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:54:27,856 INFO L82 PathProgramCache]: Analyzing trace with hash -917925283, now seen corresponding path program 1 times [2019-11-26 02:54:27,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:54:27,857 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606259436] [2019-11-26 02:54:27,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:54:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:54:28,040 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 02:54:28,040 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606259436] [2019-11-26 02:54:28,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:54:28,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:54:28,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428912298] [2019-11-26 02:54:28,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:54:28,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:54:28,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:54:28,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:54:28,042 INFO L87 Difference]: Start difference. First operand 39 states and 62 transitions. Second operand 3 states. [2019-11-26 02:54:28,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:54:28,068 INFO L93 Difference]: Finished difference Result 45 states and 67 transitions. [2019-11-26 02:54:28,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:54:28,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-26 02:54:28,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:54:28,069 INFO L225 Difference]: With dead ends: 45 [2019-11-26 02:54:28,069 INFO L226 Difference]: Without dead ends: 36 [2019-11-26 02:54:28,070 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 02:54:28,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-26 02:54:28,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-26 02:54:28,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-26 02:54:28,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 58 transitions. [2019-11-26 02:54:28,081 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 58 transitions. Word has length 12 [2019-11-26 02:54:28,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:54:28,082 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 58 transitions. [2019-11-26 02:54:28,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:54:28,083 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2019-11-26 02:54:28,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 02:54:28,085 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:54:28,085 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:54:28,085 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:54:28,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:54:28,086 INFO L82 PathProgramCache]: Analyzing trace with hash 921740516, now seen corresponding path program 1 times [2019-11-26 02:54:28,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:54:28,087 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322184064] [2019-11-26 02:54:28,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:54:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:54:28,277 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 02:54:28,277 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322184064] [2019-11-26 02:54:28,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:54:28,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:54:28,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037139093] [2019-11-26 02:54:28,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:54:28,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:54:28,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:54:28,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:54:28,279 INFO L87 Difference]: Start difference. First operand 36 states and 58 transitions. Second operand 4 states. [2019-11-26 02:54:28,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:54:28,312 INFO L93 Difference]: Finished difference Result 36 states and 58 transitions. [2019-11-26 02:54:28,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:54:28,313 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-26 02:54:28,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:54:28,313 INFO L225 Difference]: With dead ends: 36 [2019-11-26 02:54:28,313 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:54:28,314 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 02:54:28,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:54:28,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:54:28,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:54:28,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:54:28,314 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-26 02:54:28,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:54:28,315 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:54:28,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:54:28,315 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:54:28,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:54:28,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:54:28,476 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 2690) no Hoare annotation was computed. [2019-11-26 02:54:28,477 INFO L440 ceAbstractionStarter]: At program point L171(lines 161 244) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,477 INFO L440 ceAbstractionStarter]: At program point L2815-1(lines 2800 2825) the Hoare annotation is: (= 1 ~queue_empty~0) [2019-11-26 02:54:28,477 INFO L444 ceAbstractionStarter]: For program point L2815(lines 2815 2821) no Hoare annotation was computed. [2019-11-26 02:54:28,477 INFO L447 ceAbstractionStarter]: At program point L2815-3(lines 2800 2825) the Hoare annotation is: true [2019-11-26 02:54:28,477 INFO L444 ceAbstractionStarter]: For program point L2815-2(lines 2815 2821) no Hoare annotation was computed. [2019-11-26 02:54:28,477 INFO L440 ceAbstractionStarter]: At program point L107(lines 94 249) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,477 INFO L440 ceAbstractionStarter]: At program point L176(lines 176 183) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,477 INFO L444 ceAbstractionStarter]: For program point L112(lines 112 116) no Hoare annotation was computed. [2019-11-26 02:54:28,477 INFO L444 ceAbstractionStarter]: For program point L2690(line 2690) no Hoare annotation was computed. [2019-11-26 02:54:28,478 INFO L444 ceAbstractionStarter]: For program point L2690-1(line 2690) no Hoare annotation was computed. [2019-11-26 02:54:28,478 INFO L440 ceAbstractionStarter]: At program point L118(lines 108 248) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,478 INFO L440 ceAbstractionStarter]: At program point L251(lines 85 252) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,478 INFO L440 ceAbstractionStarter]: At program point L185(lines 172 243) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,478 INFO L440 ceAbstractionStarter]: At program point L123(lines 123 130) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,478 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:54:28,478 INFO L444 ceAbstractionStarter]: For program point L190(lines 190 194) no Hoare annotation was computed. [2019-11-26 02:54:28,478 INFO L440 ceAbstractionStarter]: At program point L196(lines 186 242) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,478 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2690) no Hoare annotation was computed. [2019-11-26 02:54:28,479 INFO L440 ceAbstractionStarter]: At program point L132(lines 119 247) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,479 INFO L440 ceAbstractionStarter]: At program point L465(lines 465 472) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,479 INFO L447 ceAbstractionStarter]: At program point L465-1(lines 465 472) the Hoare annotation is: true [2019-11-26 02:54:28,479 INFO L440 ceAbstractionStarter]: At program point L201(lines 201 208) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,479 INFO L440 ceAbstractionStarter]: At program point L137(lines 137 144) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,479 INFO L440 ceAbstractionStarter]: At program point L210(lines 197 241) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,479 INFO L440 ceAbstractionStarter]: At program point L409(lines 409 417) the Hoare annotation is: (and (= 1 ~queue_empty~0) (<= 1 ULTIMATE.start_bobToRjh_~tmp___1~1)) [2019-11-26 02:54:28,480 INFO L440 ceAbstractionStarter]: At program point L146(lines 133 246) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,480 INFO L440 ceAbstractionStarter]: At program point L215(lines 215 222) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,480 INFO L440 ceAbstractionStarter]: At program point L151(lines 151 158) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,480 INFO L447 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-26 02:54:28,480 INFO L444 ceAbstractionStarter]: For program point L87(lines 86 250) no Hoare annotation was computed. [2019-11-26 02:54:28,480 INFO L440 ceAbstractionStarter]: At program point L224(lines 211 240) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,480 INFO L440 ceAbstractionStarter]: At program point L160(lines 147 245) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,481 INFO L444 ceAbstractionStarter]: For program point L94(lines 94 249) no Hoare annotation was computed. [2019-11-26 02:54:28,481 INFO L440 ceAbstractionStarter]: At program point L229(lines 229 236) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,481 INFO L440 ceAbstractionStarter]: At program point L229-1(lines 86 250) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,481 INFO L440 ceAbstractionStarter]: At program point L98(lines 98 105) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,481 INFO L440 ceAbstractionStarter]: At program point L2807(lines 2807 2822) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 (+ ~mail_is_sensitive~0 1))) [2019-11-26 02:54:28,481 INFO L440 ceAbstractionStarter]: At program point L2807-2(lines 2807 2822) the Hoare annotation is: false [2019-11-26 02:54:28,482 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 169) no Hoare annotation was computed. [2019-11-26 02:54:28,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:54:28 BoogieIcfgContainer [2019-11-26 02:54:28,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:54:28,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:54:28,500 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:54:28,500 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:54:28,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:54:27" (3/4) ... [2019-11-26 02:54:28,504 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:54:28,541 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 420 nodes and edges [2019-11-26 02:54:28,545 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 101 nodes and edges [2019-11-26 02:54:28,550 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-26 02:54:28,554 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:54:28,558 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:54:28,563 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:54:28,761 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_088f630e-7854-4037-984a-6081b94a26d7/bin/utaipan/witness.graphml [2019-11-26 02:54:28,761 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:54:28,763 INFO L168 Benchmark]: Toolchain (without parser) took 9047.77 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 312.0 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -81.3 MB). Peak memory consumption was 230.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:28,764 INFO L168 Benchmark]: CDTParser took 0.17 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 02:54:28,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 943.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -136.5 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:28,765 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.65 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 02:54:28,765 INFO L168 Benchmark]: Boogie Preprocessor took 104.12 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:28,765 INFO L168 Benchmark]: RCFGBuilder took 6287.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 179.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -124.9 MB). Peak memory consumption was 380.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:28,766 INFO L168 Benchmark]: TraceAbstraction took 1330.55 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: 117.8 MB). Peak memory consumption was 117.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:28,766 INFO L168 Benchmark]: Witness Printer took 261.65 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: 41.5 MB). Peak memory consumption was 41.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:54:28,768 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 943.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -136.5 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 116.65 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 104.12 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 6287.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 179.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -124.9 MB). Peak memory consumption was 380.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1330.55 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: 117.8 MB). Peak memory consumption was 117.8 MB. Max. memory is 11.5 GB. * Witness Printer took 261.65 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: 41.5 MB). Peak memory consumption was 41.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2690]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 2690]: 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: 409]: Loop Invariant Derived loop invariant: 1 == queue_empty && 1 <= tmp___1 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 215]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 2807]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 2807]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2800]: Loop Invariant Derived loop invariant: 1 == queue_empty - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 465]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 2800]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 465]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 186]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == mail_is_sensitive + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 2 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 231 SDtfs, 85 SDslu, 110 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 28 PreInvPairs, 35 NumberOfFragments, 212 HoareAnnotationTreeSize, 28 FomulaSimplifications, 13 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, 1134 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...