./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_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_59fb43fa-e2fe-4c5d-9a6b-1f872abcdeb7/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_59fb43fa-e2fe-4c5d-9a6b-1f872abcdeb7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_59fb43fa-e2fe-4c5d-9a6b-1f872abcdeb7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_59fb43fa-e2fe-4c5d-9a6b-1f872abcdeb7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product28.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_59fb43fa-e2fe-4c5d-9a6b-1f872abcdeb7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_59fb43fa-e2fe-4c5d-9a6b-1f872abcdeb7/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 f78ec65d22334cd758778dafee92e90b1c273aa8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:10:58,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:10:58,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:10:58,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:10:58,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:10:58,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:10:58,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:10:58,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:10:58,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:10:58,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:10:58,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:10:58,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:10:58,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:10:58,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:10:58,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:10:58,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:10:58,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:10:58,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:10:58,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:10:58,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:10:58,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:10:58,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:10:58,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:10:58,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:10:58,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:10:58,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:10:58,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:10:58,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:10:58,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:10:58,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:10:58,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:10:58,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:10:58,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:10:58,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:10:58,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:10:58,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:10:58,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:10:58,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:10:58,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:10:58,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:10:58,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:10:58,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_59fb43fa-e2fe-4c5d-9a6b-1f872abcdeb7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:10:58,874 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:10:58,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:10:58,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:10:58,875 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:10:58,876 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:10:58,876 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:10:58,876 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:10:58,876 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:10:58,876 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:10:58,877 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:10:58,877 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:10:58,877 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:10:58,877 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:10:58,877 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:10:58,878 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:10:58,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:10:58,878 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:10:58,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:10:58,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:10:58,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:10:58,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:10:58,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:10:58,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:10:58,880 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:10:58,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:10:58,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:10:58,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:10:58,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:10:58,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:10:58,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:10:58,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:10:58,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:10:58,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:10:58,882 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:10:58,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:10:58,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:10:58,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:10:58,882 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_59fb43fa-e2fe-4c5d-9a6b-1f872abcdeb7/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 -> f78ec65d22334cd758778dafee92e90b1c273aa8 [2019-11-26 02:10:59,019 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:10:59,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:10:59,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:10:59,034 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:10:59,034 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:10:59,035 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_59fb43fa-e2fe-4c5d-9a6b-1f872abcdeb7/bin/utaipan/../../sv-benchmarks/c/product-lines/email_spec9_product28.cil.c [2019-11-26 02:10:59,084 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59fb43fa-e2fe-4c5d-9a6b-1f872abcdeb7/bin/utaipan/data/cf0e7d499/e2dd6cbdb9794325a6d37fabaaf2dc1f/FLAG4fc9353aa [2019-11-26 02:10:59,521 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:10:59,521 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_59fb43fa-e2fe-4c5d-9a6b-1f872abcdeb7/sv-benchmarks/c/product-lines/email_spec9_product28.cil.c [2019-11-26 02:10:59,540 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_59fb43fa-e2fe-4c5d-9a6b-1f872abcdeb7/bin/utaipan/data/cf0e7d499/e2dd6cbdb9794325a6d37fabaaf2dc1f/FLAG4fc9353aa [2019-11-26 02:10:59,820 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_59fb43fa-e2fe-4c5d-9a6b-1f872abcdeb7/bin/utaipan/data/cf0e7d499/e2dd6cbdb9794325a6d37fabaaf2dc1f [2019-11-26 02:10:59,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:10:59,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:10:59,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:10:59,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:10:59,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:10:59,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:10:59" (1/1) ... [2019-11-26 02:10:59,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@762e75b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:59, skipping insertion in model container [2019-11-26 02:10:59,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:10:59" (1/1) ... [2019-11-26 02:10:59,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:10:59,905 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:11:00,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:11:00,481 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:11:00,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:11:00,670 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:11:00,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:00 WrapperNode [2019-11-26 02:11:00,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:11:00,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:11:00,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:11:00,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:11:00,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:00" (1/1) ... [2019-11-26 02:11:00,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:00" (1/1) ... [2019-11-26 02:11:00,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:11:00,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:11:00,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:11:00,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:11:00,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:00" (1/1) ... [2019-11-26 02:11:00,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:00" (1/1) ... [2019-11-26 02:11:00,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:00" (1/1) ... [2019-11-26 02:11:00,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:00" (1/1) ... [2019-11-26 02:11:00,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:00" (1/1) ... [2019-11-26 02:11:00,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:00" (1/1) ... [2019-11-26 02:11:00,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:00" (1/1) ... [2019-11-26 02:11:00,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:11:00,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:11:00,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:11:00,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:11:00,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_59fb43fa-e2fe-4c5d-9a6b-1f872abcdeb7/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 02:11:01,012 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-26 02:11:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:11:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:11:01,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:11:01,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:11:07,951 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:11:07,952 INFO L284 CfgBuilder]: Removed 295 assume(true) statements. [2019-11-26 02:11:07,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:11:07 BoogieIcfgContainer [2019-11-26 02:11:07,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:11:07,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:11:07,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:11:07,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:11:07,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:10:59" (1/3) ... [2019-11-26 02:11:07,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b65de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:11:07, skipping insertion in model container [2019-11-26 02:11:07,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:00" (2/3) ... [2019-11-26 02:11:07,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b65de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:11:07, skipping insertion in model container [2019-11-26 02:11:07,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:11:07" (3/3) ... [2019-11-26 02:11:07,961 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product28.cil.c [2019-11-26 02:11:07,969 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:11:07,976 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-26 02:11:07,986 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-26 02:11:08,010 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:11:08,010 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:11:08,011 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:11:08,011 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:11:08,011 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:11:08,011 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:11:08,011 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:11:08,011 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:11:08,026 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2019-11-26 02:11:08,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:11:08,036 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:08,037 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:08,037 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:08,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:08,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1671545878, now seen corresponding path program 1 times [2019-11-26 02:11:08,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:08,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147744901] [2019-11-26 02:11:08,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:08,524 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 02:11:08,524 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147744901] [2019-11-26 02:11:08,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:08,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:11:08,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740386999] [2019-11-26 02:11:08,532 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:11:08,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:08,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:11:08,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:11:08,543 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2019-11-26 02:11:08,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:08,562 INFO L93 Difference]: Finished difference Result 54 states and 87 transitions. [2019-11-26 02:11:08,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:11:08,563 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:11:08,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:08,575 INFO L225 Difference]: With dead ends: 54 [2019-11-26 02:11:08,575 INFO L226 Difference]: Without dead ends: 37 [2019-11-26 02:11:08,579 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 02:11:08,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-26 02:11:08,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-26 02:11:08,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-26 02:11:08,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 60 transitions. [2019-11-26 02:11:08,623 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 60 transitions. Word has length 7 [2019-11-26 02:11:08,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:08,624 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 60 transitions. [2019-11-26 02:11:08,624 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:11:08,624 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2019-11-26 02:11:08,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:11:08,626 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:08,626 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:08,627 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:08,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:08,627 INFO L82 PathProgramCache]: Analyzing trace with hash 170406902, now seen corresponding path program 1 times [2019-11-26 02:11:08,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:08,628 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179546624] [2019-11-26 02:11:08,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:08,783 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 02:11:08,783 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179546624] [2019-11-26 02:11:08,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:08,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:11:08,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395714807] [2019-11-26 02:11:08,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:11:08,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:08,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:11:08,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:11:08,786 INFO L87 Difference]: Start difference. First operand 37 states and 60 transitions. Second operand 3 states. [2019-11-26 02:11:08,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:08,805 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2019-11-26 02:11:08,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:11:08,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-26 02:11:08,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:08,807 INFO L225 Difference]: With dead ends: 50 [2019-11-26 02:11:08,808 INFO L226 Difference]: Without dead ends: 39 [2019-11-26 02:11:08,808 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 02:11:08,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-26 02:11:08,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-26 02:11:08,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-26 02:11:08,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 62 transitions. [2019-11-26 02:11:08,819 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 62 transitions. Word has length 8 [2019-11-26 02:11:08,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:08,820 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 62 transitions. [2019-11-26 02:11:08,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:11:08,820 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 62 transitions. [2019-11-26 02:11:08,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 02:11:08,822 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:08,822 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:08,822 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:08,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:08,823 INFO L82 PathProgramCache]: Analyzing trace with hash 828987190, now seen corresponding path program 1 times [2019-11-26 02:11:08,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:08,824 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724814956] [2019-11-26 02:11:08,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:08,961 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 02:11:08,962 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724814956] [2019-11-26 02:11:08,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:08,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:11:08,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278405794] [2019-11-26 02:11:08,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:11:08,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:08,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:11:08,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:11:08,963 INFO L87 Difference]: Start difference. First operand 39 states and 62 transitions. Second operand 3 states. [2019-11-26 02:11:08,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:08,993 INFO L93 Difference]: Finished difference Result 45 states and 67 transitions. [2019-11-26 02:11:08,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:11:08,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-26 02:11:08,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:08,996 INFO L225 Difference]: With dead ends: 45 [2019-11-26 02:11:08,996 INFO L226 Difference]: Without dead ends: 36 [2019-11-26 02:11:08,996 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 02:11:08,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-26 02:11:09,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-26 02:11:09,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-26 02:11:09,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 58 transitions. [2019-11-26 02:11:09,008 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 58 transitions. Word has length 12 [2019-11-26 02:11:09,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:09,009 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 58 transitions. [2019-11-26 02:11:09,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:11:09,009 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2019-11-26 02:11:09,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 02:11:09,011 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:09,011 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:09,012 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:09,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:09,012 INFO L82 PathProgramCache]: Analyzing trace with hash -2125132971, now seen corresponding path program 1 times [2019-11-26 02:11:09,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:09,013 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54320967] [2019-11-26 02:11:09,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:09,195 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 02:11:09,195 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54320967] [2019-11-26 02:11:09,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:09,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:11:09,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519369371] [2019-11-26 02:11:09,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:11:09,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:09,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:11:09,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:11:09,197 INFO L87 Difference]: Start difference. First operand 36 states and 58 transitions. Second operand 4 states. [2019-11-26 02:11:09,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:09,237 INFO L93 Difference]: Finished difference Result 36 states and 58 transitions. [2019-11-26 02:11:09,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:11:09,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-26 02:11:09,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:09,238 INFO L225 Difference]: With dead ends: 36 [2019-11-26 02:11:09,238 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:11:09,238 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 02:11:09,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:11:09,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:11:09,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:11:09,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:11:09,239 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-26 02:11:09,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:09,239 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:11:09,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:11:09,240 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:11:09,240 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:11:09,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:11:09,489 INFO L440 ceAbstractionStarter]: At program point L633(lines 633 640) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,489 INFO L440 ceAbstractionStarter]: At program point L642(lines 629 700) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,489 INFO L444 ceAbstractionStarter]: For program point L647(lines 647 651) no Hoare annotation was computed. [2019-11-26 02:11:09,490 INFO L440 ceAbstractionStarter]: At program point L653(lines 643 699) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,490 INFO L440 ceAbstractionStarter]: At program point L2243(lines 2243 2251) the Hoare annotation is: (and (<= 1 ULTIMATE.start_bobToRjh_~tmp___1~3) (= 1 ~queue_empty~0)) [2019-11-26 02:11:09,490 INFO L440 ceAbstractionStarter]: At program point L658(lines 658 665) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,490 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2963) no Hoare annotation was computed. [2019-11-26 02:11:09,490 INFO L440 ceAbstractionStarter]: At program point L667(lines 654 698) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,490 INFO L440 ceAbstractionStarter]: At program point L672(lines 672 679) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,490 INFO L444 ceAbstractionStarter]: For program point L544(lines 543 707) no Hoare annotation was computed. [2019-11-26 02:11:09,491 INFO L440 ceAbstractionStarter]: At program point L681(lines 668 697) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,491 INFO L444 ceAbstractionStarter]: For program point L551(lines 551 706) no Hoare annotation was computed. [2019-11-26 02:11:09,491 INFO L440 ceAbstractionStarter]: At program point L686(lines 686 693) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,491 INFO L440 ceAbstractionStarter]: At program point L686-1(lines 543 707) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,491 INFO L440 ceAbstractionStarter]: At program point L555(lines 555 562) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,491 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 2963) no Hoare annotation was computed. [2019-11-26 02:11:09,491 INFO L440 ceAbstractionStarter]: At program point L564(lines 551 706) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,491 INFO L444 ceAbstractionStarter]: For program point L569(lines 569 573) no Hoare annotation was computed. [2019-11-26 02:11:09,492 INFO L440 ceAbstractionStarter]: At program point L575(lines 565 705) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,492 INFO L440 ceAbstractionStarter]: At program point L708(lines 542 709) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,492 INFO L440 ceAbstractionStarter]: At program point L580(lines 580 587) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,492 INFO L447 ceAbstractionStarter]: At program point L2299-1(lines 2299 2306) the Hoare annotation is: true [2019-11-26 02:11:09,492 INFO L440 ceAbstractionStarter]: At program point L2299(lines 2299 2306) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,492 INFO L444 ceAbstractionStarter]: For program point L2963-1(line 2963) no Hoare annotation was computed. [2019-11-26 02:11:09,492 INFO L444 ceAbstractionStarter]: For program point L2963(line 2963) no Hoare annotation was computed. [2019-11-26 02:11:09,492 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:11:09,493 INFO L440 ceAbstractionStarter]: At program point L589(lines 576 704) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,493 INFO L440 ceAbstractionStarter]: At program point L594(lines 594 601) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,493 INFO L440 ceAbstractionStarter]: At program point L603(lines 590 703) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,496 INFO L440 ceAbstractionStarter]: At program point L78(lines 78 91) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,496 INFO L440 ceAbstractionStarter]: At program point L78-1(lines 68 94) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,496 INFO L440 ceAbstractionStarter]: At program point L78-2(lines 78 91) the Hoare annotation is: false [2019-11-26 02:11:09,497 INFO L447 ceAbstractionStarter]: At program point L78-3(lines 68 94) the Hoare annotation is: true [2019-11-26 02:11:09,497 INFO L440 ceAbstractionStarter]: At program point L608(lines 608 615) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,497 INFO L444 ceAbstractionStarter]: For program point L82(lines 82 88) no Hoare annotation was computed. [2019-11-26 02:11:09,497 INFO L444 ceAbstractionStarter]: For program point L82-2(lines 82 88) no Hoare annotation was computed. [2019-11-26 02:11:09,497 INFO L447 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-26 02:11:09,497 INFO L440 ceAbstractionStarter]: At program point L617(lines 604 702) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,498 INFO L444 ceAbstractionStarter]: For program point L622(lines 622 626) no Hoare annotation was computed. [2019-11-26 02:11:09,498 INFO L440 ceAbstractionStarter]: At program point L628(lines 618 701) the Hoare annotation is: (and (= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:09,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:11:09 BoogieIcfgContainer [2019-11-26 02:11:09,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:11:09,521 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:11:09,521 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:11:09,521 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:11:09,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:11:07" (3/4) ... [2019-11-26 02:11:09,526 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:11:09,563 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 537 nodes and edges [2019-11-26 02:11:09,568 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 127 nodes and edges [2019-11-26 02:11:09,574 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2019-11-26 02:11:09,579 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-26 02:11:09,584 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:11:09,590 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:11:09,856 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_59fb43fa-e2fe-4c5d-9a6b-1f872abcdeb7/bin/utaipan/witness.graphml [2019-11-26 02:11:09,856 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:11:09,859 INFO L168 Benchmark]: Toolchain (without parser) took 10034.74 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 291.0 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -145.2 MB). Peak memory consumption was 145.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:09,859 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:11:09,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 846.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -121.3 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:09,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:09,860 INFO L168 Benchmark]: Boogie Preprocessor took 145.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:09,861 INFO L168 Benchmark]: RCFGBuilder took 7006.93 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 166.2 MB). Free memory was 1.0 GB in the beginning and 793.6 MB in the end (delta: 252.8 MB). Peak memory consumption was 419.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:09,861 INFO L168 Benchmark]: TraceAbstraction took 1566.58 ms. Allocated memory is still 1.3 GB. Free memory was 793.6 MB in the beginning and 1.1 GB in the end (delta: -342.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:11:09,861 INFO L168 Benchmark]: Witness Printer took 335.29 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:09,863 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 846.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -121.3 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 130.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 145.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 7006.93 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 166.2 MB). Free memory was 1.0 GB in the beginning and 793.6 MB in the end (delta: 252.8 MB). Peak memory consumption was 419.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1566.58 ms. Allocated memory is still 1.3 GB. Free memory was 793.6 MB in the beginning and 1.1 GB in the end (delta: -342.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 335.29 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2963]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 2963]: 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: 2243]: Loop Invariant Derived loop invariant: 1 <= tmp___1 && 1 == queue_empty - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 672]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 565]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 658]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 590]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 654]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 580]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 686]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 643]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 543]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 668]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2299]: Loop Invariant Derived loop invariant: 1 == queue_empty && 0 == in_encrypted - InvariantResult [Line: 2299]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 2 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 231 SDtfs, 86 SDslu, 110 SDs, 0 SdLazy, 8 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, 172 HoareAnnotationTreeSize, 28 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 28 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 936 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...