./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_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_d8f3cca2-6069-4a7a-9958-9cd83b9c85b6/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d8f3cca2-6069-4a7a-9958-9cd83b9c85b6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d8f3cca2-6069-4a7a-9958-9cd83b9c85b6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d8f3cca2-6069-4a7a-9958-9cd83b9c85b6/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product12.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d8f3cca2-6069-4a7a-9958-9cd83b9c85b6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d8f3cca2-6069-4a7a-9958-9cd83b9c85b6/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 122860f60c237ba0e5aaff00f5b5723e95eecabf ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:11:48,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:11:48,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:11:48,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:11:48,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:11:48,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:11:48,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:11:48,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:11:48,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:11:48,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:11:48,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:11:48,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:11:48,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:11:48,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:11:48,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:11:48,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:11:48,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:11:48,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:11:48,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:11:48,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:11:48,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:11:48,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:11:48,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:11:48,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:11:48,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:11:48,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:11:48,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:11:48,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:11:48,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:11:48,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:11:48,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:11:48,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:11:48,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:11:48,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:11:48,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:11:48,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:11:48,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:11:48,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:11:48,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:11:48,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:11:48,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:11:48,161 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d8f3cca2-6069-4a7a-9958-9cd83b9c85b6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:11:48,186 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:11:48,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:11:48,195 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:11:48,195 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:11:48,195 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:11:48,196 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:11:48,196 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:11:48,196 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:11:48,196 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:11:48,196 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:11:48,197 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:11:48,197 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:11:48,197 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:11:48,197 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:11:48,197 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:11:48,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:11:48,198 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:11:48,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:11:48,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:11:48,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:11:48,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:11:48,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:11:48,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:11:48,200 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:11:48,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:11:48,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:11:48,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:11:48,201 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:11:48,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:11:48,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:11:48,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:11:48,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:11:48,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:11:48,202 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:11:48,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:11:48,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:11:48,203 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:11:48,203 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_d8f3cca2-6069-4a7a-9958-9cd83b9c85b6/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 -> 122860f60c237ba0e5aaff00f5b5723e95eecabf [2019-11-26 02:11:48,345 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:11:48,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:11:48,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:11:48,363 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:11:48,363 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:11:48,364 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d8f3cca2-6069-4a7a-9958-9cd83b9c85b6/bin/utaipan/../../sv-benchmarks/c/product-lines/email_spec9_product12.cil.c [2019-11-26 02:11:48,410 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8f3cca2-6069-4a7a-9958-9cd83b9c85b6/bin/utaipan/data/44961e521/8d761c2b1007453d9dd76009e4673079/FLAG2a7657372 [2019-11-26 02:11:48,979 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:11:48,980 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d8f3cca2-6069-4a7a-9958-9cd83b9c85b6/sv-benchmarks/c/product-lines/email_spec9_product12.cil.c [2019-11-26 02:11:49,000 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8f3cca2-6069-4a7a-9958-9cd83b9c85b6/bin/utaipan/data/44961e521/8d761c2b1007453d9dd76009e4673079/FLAG2a7657372 [2019-11-26 02:11:49,432 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d8f3cca2-6069-4a7a-9958-9cd83b9c85b6/bin/utaipan/data/44961e521/8d761c2b1007453d9dd76009e4673079 [2019-11-26 02:11:49,435 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:11:49,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:11:49,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:11:49,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:11:49,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:11:49,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:11:49" (1/1) ... [2019-11-26 02:11:49,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ee4d5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:49, skipping insertion in model container [2019-11-26 02:11:49,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:11:49" (1/1) ... [2019-11-26 02:11:49,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:11:49,511 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:11:50,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:11:50,191 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:11:50,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:11:50,362 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:11:50,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:50 WrapperNode [2019-11-26 02:11:50,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:11:50,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:11:50,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:11:50,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:11:50,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:50" (1/1) ... [2019-11-26 02:11:50,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:50" (1/1) ... [2019-11-26 02:11:50,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:11:50,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:11:50,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:11:50,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:11:50,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:50" (1/1) ... [2019-11-26 02:11:50,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:50" (1/1) ... [2019-11-26 02:11:50,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:50" (1/1) ... [2019-11-26 02:11:50,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:50" (1/1) ... [2019-11-26 02:11:50,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:50" (1/1) ... [2019-11-26 02:11:50,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:50" (1/1) ... [2019-11-26 02:11:50,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:50" (1/1) ... [2019-11-26 02:11:50,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:11:50,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:11:50,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:11:50,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:11:50,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8f3cca2-6069-4a7a-9958-9cd83b9c85b6/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 02:11:50,674 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-26 02:11:50,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:11:50,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:11:50,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:11:50,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:11:56,314 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:11:56,314 INFO L284 CfgBuilder]: Removed 231 assume(true) statements. [2019-11-26 02:11:56,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:11:56 BoogieIcfgContainer [2019-11-26 02:11:56,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:11:56,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:11:56,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:11:56,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:11:56,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:11:49" (1/3) ... [2019-11-26 02:11:56,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa82607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:11:56, skipping insertion in model container [2019-11-26 02:11:56,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:50" (2/3) ... [2019-11-26 02:11:56,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa82607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:11:56, skipping insertion in model container [2019-11-26 02:11:56,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:11:56" (3/3) ... [2019-11-26 02:11:56,323 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product12.cil.c [2019-11-26 02:11:56,329 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:11:56,335 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-26 02:11:56,342 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-26 02:11:56,362 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:11:56,363 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:11:56,363 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:11:56,363 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:11:56,363 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:11:56,363 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:11:56,363 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:11:56,363 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:11:56,376 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2019-11-26 02:11:56,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:11:56,381 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:56,382 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:56,382 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:56,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:56,386 INFO L82 PathProgramCache]: Analyzing trace with hash -488752675, now seen corresponding path program 1 times [2019-11-26 02:11:56,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:56,392 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171970304] [2019-11-26 02:11:56,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:56,648 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 02:11:56,648 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171970304] [2019-11-26 02:11:56,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:56,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:11:56,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730160406] [2019-11-26 02:11:56,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:11:56,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:56,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:11:56,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:11:56,669 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2019-11-26 02:11:56,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:56,688 INFO L93 Difference]: Finished difference Result 54 states and 87 transitions. [2019-11-26 02:11:56,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:11:56,689 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:11:56,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:56,699 INFO L225 Difference]: With dead ends: 54 [2019-11-26 02:11:56,699 INFO L226 Difference]: Without dead ends: 37 [2019-11-26 02:11:56,702 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 02:11:56,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-26 02:11:56,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-26 02:11:56,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-26 02:11:56,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 60 transitions. [2019-11-26 02:11:56,736 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 60 transitions. Word has length 7 [2019-11-26 02:11:56,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:56,737 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 60 transitions. [2019-11-26 02:11:56,737 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:11:56,737 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2019-11-26 02:11:56,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:11:56,738 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:56,738 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:56,738 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:56,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:56,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1691674563, now seen corresponding path program 1 times [2019-11-26 02:11:56,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:56,739 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380465343] [2019-11-26 02:11:56,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:56,879 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 02:11:56,879 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380465343] [2019-11-26 02:11:56,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:56,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:11:56,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036059558] [2019-11-26 02:11:56,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:11:56,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:56,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:11:56,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:11:56,882 INFO L87 Difference]: Start difference. First operand 37 states and 60 transitions. Second operand 3 states. [2019-11-26 02:11:56,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:56,896 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2019-11-26 02:11:56,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:11:56,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-26 02:11:56,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:56,900 INFO L225 Difference]: With dead ends: 50 [2019-11-26 02:11:56,901 INFO L226 Difference]: Without dead ends: 39 [2019-11-26 02:11:56,902 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 02:11:56,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-26 02:11:56,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-26 02:11:56,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-26 02:11:56,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 62 transitions. [2019-11-26 02:11:56,908 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 62 transitions. Word has length 8 [2019-11-26 02:11:56,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:56,909 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 62 transitions. [2019-11-26 02:11:56,909 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:11:56,909 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 62 transitions. [2019-11-26 02:11:56,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 02:11:56,910 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:56,910 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:56,911 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:56,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:56,911 INFO L82 PathProgramCache]: Analyzing trace with hash -234083136, now seen corresponding path program 1 times [2019-11-26 02:11:56,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:56,912 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589405211] [2019-11-26 02:11:56,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:57,057 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 02:11:57,058 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589405211] [2019-11-26 02:11:57,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:57,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:11:57,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411477988] [2019-11-26 02:11:57,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:11:57,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:57,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:11:57,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:11:57,059 INFO L87 Difference]: Start difference. First operand 39 states and 62 transitions. Second operand 3 states. [2019-11-26 02:11:57,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:57,082 INFO L93 Difference]: Finished difference Result 45 states and 67 transitions. [2019-11-26 02:11:57,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:11:57,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-26 02:11:57,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:57,083 INFO L225 Difference]: With dead ends: 45 [2019-11-26 02:11:57,084 INFO L226 Difference]: Without dead ends: 36 [2019-11-26 02:11:57,084 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 02:11:57,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-26 02:11:57,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-26 02:11:57,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-26 02:11:57,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 58 transitions. [2019-11-26 02:11:57,093 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 58 transitions. Word has length 12 [2019-11-26 02:11:57,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:57,094 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 58 transitions. [2019-11-26 02:11:57,094 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:11:57,094 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2019-11-26 02:11:57,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 02:11:57,096 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:57,096 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:57,096 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:57,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:57,097 INFO L82 PathProgramCache]: Analyzing trace with hash -929125447, now seen corresponding path program 1 times [2019-11-26 02:11:57,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:57,097 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522895565] [2019-11-26 02:11:57,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:57,277 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 02:11:57,278 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522895565] [2019-11-26 02:11:57,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:57,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:11:57,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193341526] [2019-11-26 02:11:57,279 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:11:57,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:57,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:11:57,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:11:57,279 INFO L87 Difference]: Start difference. First operand 36 states and 58 transitions. Second operand 4 states. [2019-11-26 02:11:57,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:57,326 INFO L93 Difference]: Finished difference Result 36 states and 58 transitions. [2019-11-26 02:11:57,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:11:57,327 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-26 02:11:57,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:57,327 INFO L225 Difference]: With dead ends: 36 [2019-11-26 02:11:57,327 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:11:57,328 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 02:11:57,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:11:57,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:11:57,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:11:57,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:11:57,329 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-26 02:11:57,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:57,329 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:11:57,329 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:11:57,329 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:11:57,329 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:11:57,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:11:57,464 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 1452) no Hoare annotation was computed. [2019-11-26 02:11:57,464 INFO L440 ceAbstractionStarter]: At program point L2812(lines 2812 2819) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,464 INFO L440 ceAbstractionStarter]: At program point L2812-1(lines 2669 2833) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,465 INFO L440 ceAbstractionStarter]: At program point L2681(lines 2681 2688) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,465 INFO L444 ceAbstractionStarter]: For program point L2748(lines 2748 2752) no Hoare annotation was computed. [2019-11-26 02:11:57,465 INFO L440 ceAbstractionStarter]: At program point L902(lines 902 910) the Hoare annotation is: (and (<= 1 ULTIMATE.start_bobToRjh_~tmp___1~1) (<= 1 ~queue_empty~0)) [2019-11-26 02:11:57,465 INFO L440 ceAbstractionStarter]: At program point L2754(lines 2744 2827) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,465 INFO L440 ceAbstractionStarter]: At program point L2690(lines 2677 2832) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,465 INFO L440 ceAbstractionStarter]: At program point L2759(lines 2759 2766) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,465 INFO L444 ceAbstractionStarter]: For program point L2695(lines 2695 2699) no Hoare annotation was computed. [2019-11-26 02:11:57,466 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:11:57,466 INFO L440 ceAbstractionStarter]: At program point L2701(lines 2691 2831) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,466 INFO L440 ceAbstractionStarter]: At program point L2834(lines 2668 2835) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,466 INFO L440 ceAbstractionStarter]: At program point L2768(lines 2755 2826) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,466 INFO L440 ceAbstractionStarter]: At program point L2706(lines 2706 2713) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,466 INFO L444 ceAbstractionStarter]: For program point L2773(lines 2773 2777) no Hoare annotation was computed. [2019-11-26 02:11:57,466 INFO L444 ceAbstractionStarter]: For program point L1452(line 1452) no Hoare annotation was computed. [2019-11-26 02:11:57,466 INFO L444 ceAbstractionStarter]: For program point L1452-1(line 1452) no Hoare annotation was computed. [2019-11-26 02:11:57,467 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1452) no Hoare annotation was computed. [2019-11-26 02:11:57,467 INFO L440 ceAbstractionStarter]: At program point L2779(lines 2769 2825) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,467 INFO L440 ceAbstractionStarter]: At program point L2715(lines 2702 2830) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,467 INFO L440 ceAbstractionStarter]: At program point L2784(lines 2784 2791) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,467 INFO L440 ceAbstractionStarter]: At program point L2720(lines 2720 2727) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,467 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 02:11:57,467 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 02:11:57,468 INFO L440 ceAbstractionStarter]: At program point L78-2(lines 78 91) the Hoare annotation is: false [2019-11-26 02:11:57,468 INFO L447 ceAbstractionStarter]: At program point L78-3(lines 68 94) the Hoare annotation is: true [2019-11-26 02:11:57,468 INFO L444 ceAbstractionStarter]: For program point L82(lines 82 88) no Hoare annotation was computed. [2019-11-26 02:11:57,468 INFO L444 ceAbstractionStarter]: For program point L82-2(lines 82 88) no Hoare annotation was computed. [2019-11-26 02:11:57,468 INFO L440 ceAbstractionStarter]: At program point L2793(lines 2780 2824) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,468 INFO L447 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-26 02:11:57,468 INFO L440 ceAbstractionStarter]: At program point L2729(lines 2716 2829) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,468 INFO L440 ceAbstractionStarter]: At program point L2798(lines 2798 2805) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,469 INFO L440 ceAbstractionStarter]: At program point L2734(lines 2734 2741) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,469 INFO L444 ceAbstractionStarter]: For program point L2670(lines 2669 2833) no Hoare annotation was computed. [2019-11-26 02:11:57,469 INFO L440 ceAbstractionStarter]: At program point L2807(lines 2794 2823) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,469 INFO L440 ceAbstractionStarter]: At program point L958(lines 958 965) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,469 INFO L447 ceAbstractionStarter]: At program point L958-1(lines 958 965) the Hoare annotation is: true [2019-11-26 02:11:57,469 INFO L440 ceAbstractionStarter]: At program point L2743(lines 2730 2828) the Hoare annotation is: (and (<= 1 ~queue_empty~0) (= 0 ~in_encrypted~0)) [2019-11-26 02:11:57,469 INFO L444 ceAbstractionStarter]: For program point L2677(lines 2677 2832) no Hoare annotation was computed. [2019-11-26 02:11:57,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:11:57 BoogieIcfgContainer [2019-11-26 02:11:57,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:11:57,487 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:11:57,487 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:11:57,487 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:11:57,488 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:11:56" (3/4) ... [2019-11-26 02:11:57,491 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:11:57,524 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 421 nodes and edges [2019-11-26 02:11:57,529 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 100 nodes and edges [2019-11-26 02:11:57,533 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2019-11-26 02:11:57,537 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-26 02:11:57,542 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:11:57,546 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:11:57,840 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d8f3cca2-6069-4a7a-9958-9cd83b9c85b6/bin/utaipan/witness.graphml [2019-11-26 02:11:57,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:11:57,843 INFO L168 Benchmark]: Toolchain (without parser) took 8405.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.3 MB). Free memory was 939.3 MB in the beginning and 945.1 MB in the end (delta: -5.7 MB). Peak memory consumption was 195.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:57,843 INFO L168 Benchmark]: CDTParser took 0.22 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 02:11:57,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 925.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:57,844 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:57,844 INFO L168 Benchmark]: Boogie Preprocessor took 106.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:57,845 INFO L168 Benchmark]: RCFGBuilder took 5720.50 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -33.7 MB). Peak memory consumption was 283.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:57,845 INFO L168 Benchmark]: TraceAbstraction took 1170.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.4 MB in the end (delta: 121.9 MB). Peak memory consumption was 121.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:57,845 INFO L168 Benchmark]: Witness Printer took 354.09 ms. Allocated memory is still 1.2 GB. Free memory was 986.4 MB in the beginning and 945.1 MB in the end (delta: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:57,847 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 925.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 124.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 106.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5720.50 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -33.7 MB). Peak memory consumption was 283.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1170.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.4 MB in the end (delta: 121.9 MB). Peak memory consumption was 121.9 MB. Max. memory is 11.5 GB. * Witness Printer took 354.09 ms. Allocated memory is still 1.2 GB. Free memory was 986.4 MB in the beginning and 945.1 MB in the end (delta: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1452]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1452]: 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: 2720]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 2784]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 958]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2759]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 958]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2668]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 2706]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 2702]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 2769]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 2669]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 2812]: 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: 2755]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 2734]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 2798]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 2681]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 2730]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 2794]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 2677]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 2744]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 2691]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 2716]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: 2780]: Loop Invariant Derived loop invariant: 1 <= queue_empty && 0 == in_encrypted - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 902]: Loop Invariant Derived loop invariant: 1 <= tmp___1 && 1 <= queue_empty - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 2 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, 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, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s 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...