./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product23.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_930389f2-8aea-4d29-aec9-5c82cb3885f5/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_930389f2-8aea-4d29-aec9-5c82cb3885f5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_930389f2-8aea-4d29-aec9-5c82cb3885f5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_930389f2-8aea-4d29-aec9-5c82cb3885f5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product23.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_930389f2-8aea-4d29-aec9-5c82cb3885f5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_930389f2-8aea-4d29-aec9-5c82cb3885f5/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 caa87ceb48fb1ecfa9dfb66cd0f9d271d06ec658 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:40:31,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:40:31,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:40:31,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:40:31,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:40:31,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:40:31,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:40:31,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:40:31,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:40:31,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:40:31,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:40:31,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:40:31,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:40:31,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:40:31,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:40:31,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:40:31,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:40:31,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:40:31,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:40:31,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:40:31,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:40:31,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:40:31,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:40:31,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:40:31,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:40:31,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:40:31,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:40:31,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:40:31,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:40:31,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:40:31,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:40:31,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:40:31,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:40:31,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:40:31,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:40:31,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:40:31,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:40:31,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:40:31,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:40:31,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:40:31,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:40:31,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_930389f2-8aea-4d29-aec9-5c82cb3885f5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:40:31,451 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:40:31,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:40:31,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:40:31,452 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:40:31,453 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:40:31,453 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:40:31,453 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:40:31,453 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:40:31,453 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:40:31,453 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:40:31,454 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:40:31,454 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:40:31,454 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:40:31,454 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:40:31,454 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:40:31,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:40:31,455 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:40:31,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:40:31,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:40:31,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:40:31,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:40:31,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:40:31,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:40:31,456 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:40:31,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:40:31,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:40:31,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:40:31,457 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:40:31,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:40:31,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:40:31,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:40:31,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:40:31,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:40:31,458 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:40:31,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:40:31,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:40:31,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:40:31,459 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_930389f2-8aea-4d29-aec9-5c82cb3885f5/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 -> caa87ceb48fb1ecfa9dfb66cd0f9d271d06ec658 [2019-11-26 02:40:31,603 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:40:31,620 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:40:31,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:40:31,624 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:40:31,624 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:40:31,625 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_930389f2-8aea-4d29-aec9-5c82cb3885f5/bin/utaipan/../../sv-benchmarks/c/product-lines/email_spec7_product23.cil.c [2019-11-26 02:40:31,690 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_930389f2-8aea-4d29-aec9-5c82cb3885f5/bin/utaipan/data/471d4a4b6/6e9ebb873329435cb2330144e2496b45/FLAG417d452ed [2019-11-26 02:40:32,202 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:40:32,203 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_930389f2-8aea-4d29-aec9-5c82cb3885f5/sv-benchmarks/c/product-lines/email_spec7_product23.cil.c [2019-11-26 02:40:32,231 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_930389f2-8aea-4d29-aec9-5c82cb3885f5/bin/utaipan/data/471d4a4b6/6e9ebb873329435cb2330144e2496b45/FLAG417d452ed [2019-11-26 02:40:32,420 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_930389f2-8aea-4d29-aec9-5c82cb3885f5/bin/utaipan/data/471d4a4b6/6e9ebb873329435cb2330144e2496b45 [2019-11-26 02:40:32,423 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:40:32,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:40:32,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:40:32,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:40:32,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:40:32,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:40:32" (1/1) ... [2019-11-26 02:40:32,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d2a2655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:32, skipping insertion in model container [2019-11-26 02:40:32,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:40:32" (1/1) ... [2019-11-26 02:40:32,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:40:32,504 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:40:33,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:40:33,062 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:40:33,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:40:33,251 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:40:33,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:33 WrapperNode [2019-11-26 02:40:33,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:40:33,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:40:33,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:40:33,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:40:33,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:33" (1/1) ... [2019-11-26 02:40:33,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:33" (1/1) ... [2019-11-26 02:40:33,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:40:33,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:40:33,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:40:33,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:40:33,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:33" (1/1) ... [2019-11-26 02:40:33,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:33" (1/1) ... [2019-11-26 02:40:33,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:33" (1/1) ... [2019-11-26 02:40:33,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:33" (1/1) ... [2019-11-26 02:40:33,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:33" (1/1) ... [2019-11-26 02:40:33,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:33" (1/1) ... [2019-11-26 02:40:33,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:33" (1/1) ... [2019-11-26 02:40:33,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:40:33,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:40:33,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:40:33,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:40:33,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930389f2-8aea-4d29-aec9-5c82cb3885f5/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 02:40:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-26 02:40:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:40:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:40:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:40:33,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:40:44,373 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:40:44,373 INFO L284 CfgBuilder]: Removed 501 assume(true) statements. [2019-11-26 02:40:44,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:40:44 BoogieIcfgContainer [2019-11-26 02:40:44,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:40:44,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:40:44,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:40:44,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:40:44,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:40:32" (1/3) ... [2019-11-26 02:40:44,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576feba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:40:44, skipping insertion in model container [2019-11-26 02:40:44,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:40:33" (2/3) ... [2019-11-26 02:40:44,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576feba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:40:44, skipping insertion in model container [2019-11-26 02:40:44,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:40:44" (3/3) ... [2019-11-26 02:40:44,383 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product23.cil.c [2019-11-26 02:40:44,391 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:40:44,398 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-26 02:40:44,408 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-26 02:40:44,434 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:40:44,434 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:40:44,434 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:40:44,434 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:40:44,436 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:40:44,436 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:40:44,436 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:40:44,436 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:40:44,458 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2019-11-26 02:40:44,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:40:44,466 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:40:44,467 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:40:44,467 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:40:44,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:40:44,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1367514285, now seen corresponding path program 1 times [2019-11-26 02:40:44,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:40:44,483 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481088402] [2019-11-26 02:40:44,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:40:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:40:44,802 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 02:40:44,804 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481088402] [2019-11-26 02:40:44,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:40:44,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:40:44,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839391138] [2019-11-26 02:40:44,810 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:40:44,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:40:44,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:40:44,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:40:44,825 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2019-11-26 02:40:44,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:40:44,855 INFO L93 Difference]: Finished difference Result 88 states and 129 transitions. [2019-11-26 02:40:44,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:40:44,856 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:40:44,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:40:44,871 INFO L225 Difference]: With dead ends: 88 [2019-11-26 02:40:44,871 INFO L226 Difference]: Without dead ends: 53 [2019-11-26 02:40:44,874 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 02:40:44,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-26 02:40:44,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-11-26 02:40:44,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-26 02:40:44,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2019-11-26 02:40:44,920 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 7 [2019-11-26 02:40:44,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:40:44,920 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2019-11-26 02:40:44,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:40:44,920 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2019-11-26 02:40:44,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:40:44,921 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:40:44,921 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:40:44,921 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:40:44,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:40:44,921 INFO L82 PathProgramCache]: Analyzing trace with hash -613948668, now seen corresponding path program 1 times [2019-11-26 02:40:44,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:40:44,922 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139790166] [2019-11-26 02:40:44,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:40:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:40:45,087 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 02:40:45,088 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139790166] [2019-11-26 02:40:45,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:40:45,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:40:45,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783759296] [2019-11-26 02:40:45,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:40:45,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:40:45,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:40:45,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:40:45,091 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 3 states. [2019-11-26 02:40:45,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:40:45,107 INFO L93 Difference]: Finished difference Result 82 states and 106 transitions. [2019-11-26 02:40:45,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:40:45,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-26 02:40:45,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:40:45,109 INFO L225 Difference]: With dead ends: 82 [2019-11-26 02:40:45,110 INFO L226 Difference]: Without dead ends: 55 [2019-11-26 02:40:45,111 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 02:40:45,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-26 02:40:45,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-11-26 02:40:45,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-26 02:40:45,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 78 transitions. [2019-11-26 02:40:45,119 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 78 transitions. Word has length 8 [2019-11-26 02:40:45,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:40:45,119 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 78 transitions. [2019-11-26 02:40:45,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:40:45,119 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 78 transitions. [2019-11-26 02:40:45,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 02:40:45,120 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:40:45,120 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:40:45,121 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:40:45,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:40:45,121 INFO L82 PathProgramCache]: Analyzing trace with hash 132144878, now seen corresponding path program 1 times [2019-11-26 02:40:45,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:40:45,122 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588737446] [2019-11-26 02:40:45,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:40:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:40:45,295 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 02:40:45,295 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588737446] [2019-11-26 02:40:45,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:40:45,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:40:45,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780087633] [2019-11-26 02:40:45,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:40:45,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:40:45,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:40:45,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:40:45,297 INFO L87 Difference]: Start difference. First operand 55 states and 78 transitions. Second operand 5 states. [2019-11-26 02:40:45,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:40:45,509 INFO L93 Difference]: Finished difference Result 121 states and 166 transitions. [2019-11-26 02:40:45,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:40:45,510 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-26 02:40:45,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:40:45,512 INFO L225 Difference]: With dead ends: 121 [2019-11-26 02:40:45,512 INFO L226 Difference]: Without dead ends: 100 [2019-11-26 02:40:45,512 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:40:45,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-11-26 02:40:45,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 81. [2019-11-26 02:40:45,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-11-26 02:40:45,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 127 transitions. [2019-11-26 02:40:45,522 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 127 transitions. Word has length 12 [2019-11-26 02:40:45,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:40:45,523 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 127 transitions. [2019-11-26 02:40:45,523 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:40:45,523 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 127 transitions. [2019-11-26 02:40:45,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 02:40:45,524 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:40:45,524 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:40:45,524 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:40:45,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:40:45,524 INFO L82 PathProgramCache]: Analyzing trace with hash 132129675, now seen corresponding path program 1 times [2019-11-26 02:40:45,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:40:45,525 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920312414] [2019-11-26 02:40:45,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:40:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:40:45,651 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 02:40:45,651 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920312414] [2019-11-26 02:40:45,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:40:45,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:40:45,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217522958] [2019-11-26 02:40:45,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:40:45,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:40:45,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:40:45,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:40:45,652 INFO L87 Difference]: Start difference. First operand 81 states and 127 transitions. Second operand 3 states. [2019-11-26 02:40:45,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:40:45,711 INFO L93 Difference]: Finished difference Result 81 states and 127 transitions. [2019-11-26 02:40:45,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:40:45,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-26 02:40:45,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:40:45,715 INFO L225 Difference]: With dead ends: 81 [2019-11-26 02:40:45,715 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:40:45,716 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 02:40:45,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:40:45,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:40:45,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:40:45,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:40:45,716 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-11-26 02:40:45,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:40:45,717 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:40:45,717 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:40:45,717 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:40:45,717 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:40:45,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:40:45,790 INFO L447 ceAbstractionStarter]: At program point L2882(lines 2869 2928) the Hoare annotation is: true [2019-11-26 02:40:45,790 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 947) no Hoare annotation was computed. [2019-11-26 02:40:45,790 INFO L447 ceAbstractionStarter]: At program point L2887(lines 2887 2894) the Hoare annotation is: true [2019-11-26 02:40:45,790 INFO L447 ceAbstractionStarter]: At program point L2896(lines 2883 2927) the Hoare annotation is: true [2019-11-26 02:40:45,790 INFO L444 ceAbstractionStarter]: For program point L2767(lines 2766 2936) no Hoare annotation was computed. [2019-11-26 02:40:45,790 INFO L447 ceAbstractionStarter]: At program point L2901(lines 2901 2908) the Hoare annotation is: true [2019-11-26 02:40:45,790 INFO L447 ceAbstractionStarter]: At program point L128(lines 128 147) the Hoare annotation is: true [2019-11-26 02:40:45,790 INFO L440 ceAbstractionStarter]: At program point L128-1(lines 128 147) the Hoare annotation is: (= 1 ULTIMATE.start___utac_acc__EncryptVerify_spec__1_~tmp~9) [2019-11-26 02:40:45,791 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 947) no Hoare annotation was computed. [2019-11-26 02:40:45,791 INFO L444 ceAbstractionStarter]: For program point L2774(lines 2774 2935) no Hoare annotation was computed. [2019-11-26 02:40:45,791 INFO L447 ceAbstractionStarter]: At program point L2910(lines 2897 2926) the Hoare annotation is: true [2019-11-26 02:40:45,791 INFO L447 ceAbstractionStarter]: At program point L2778(lines 2778 2785) the Hoare annotation is: true [2019-11-26 02:40:45,791 INFO L447 ceAbstractionStarter]: At program point L2915-1(lines 2766 2936) the Hoare annotation is: true [2019-11-26 02:40:45,791 INFO L447 ceAbstractionStarter]: At program point L2915(lines 2915 2922) the Hoare annotation is: true [2019-11-26 02:40:45,791 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 947) no Hoare annotation was computed. [2019-11-26 02:40:45,791 INFO L447 ceAbstractionStarter]: At program point L2787(lines 2774 2935) the Hoare annotation is: true [2019-11-26 02:40:45,791 INFO L440 ceAbstractionStarter]: At program point L2524(lines 2524 2532) the Hoare annotation is: (= 1 ULTIMATE.start___utac_acc__EncryptVerify_spec__1_~tmp~9) [2019-11-26 02:40:45,791 INFO L447 ceAbstractionStarter]: At program point L2792(lines 2792 2799) the Hoare annotation is: true [2019-11-26 02:40:45,791 INFO L444 ceAbstractionStarter]: For program point L947(line 947) no Hoare annotation was computed. [2019-11-26 02:40:45,791 INFO L444 ceAbstractionStarter]: For program point L947-1(line 947) no Hoare annotation was computed. [2019-11-26 02:40:45,792 INFO L444 ceAbstractionStarter]: For program point L947-2(line 947) no Hoare annotation was computed. [2019-11-26 02:40:45,792 INFO L444 ceAbstractionStarter]: For program point L947-3(line 947) no Hoare annotation was computed. [2019-11-26 02:40:45,792 INFO L444 ceAbstractionStarter]: For program point L947-4(line 947) no Hoare annotation was computed. [2019-11-26 02:40:45,792 INFO L444 ceAbstractionStarter]: For program point L947-5(line 947) no Hoare annotation was computed. [2019-11-26 02:40:45,792 INFO L440 ceAbstractionStarter]: At program point L948(lines 425 441) the Hoare annotation is: (= 1 ULTIMATE.start___utac_acc__EncryptVerify_spec__1_~tmp~9) [2019-11-26 02:40:45,792 INFO L440 ceAbstractionStarter]: At program point L948-1(lines 425 441) the Hoare annotation is: (= 1 ULTIMATE.start___utac_acc__EncryptVerify_spec__1_~tmp~9) [2019-11-26 02:40:45,792 INFO L440 ceAbstractionStarter]: At program point L948-2(lines 425 441) the Hoare annotation is: (and (= 0 ULTIMATE.start_outgoing__wrappee__AddressBook_~size~0) (= ULTIMATE.start___utac_acc__EncryptVerify_spec__1_~tmp~9 1)) [2019-11-26 02:40:45,792 INFO L440 ceAbstractionStarter]: At program point L948-3(lines 425 441) the Hoare annotation is: (= 1 ULTIMATE.start___utac_acc__EncryptVerify_spec__1_~tmp~9) [2019-11-26 02:40:45,793 INFO L447 ceAbstractionStarter]: At program point L948-4(lines 425 441) the Hoare annotation is: true [2019-11-26 02:40:45,793 INFO L447 ceAbstractionStarter]: At program point L948-5(lines 425 441) the Hoare annotation is: true [2019-11-26 02:40:45,793 INFO L447 ceAbstractionStarter]: At program point L2801(lines 2788 2934) the Hoare annotation is: true [2019-11-26 02:40:45,793 INFO L447 ceAbstractionStarter]: At program point L2937(lines 2765 2938) the Hoare annotation is: true [2019-11-26 02:40:45,793 INFO L447 ceAbstractionStarter]: At program point L2806(lines 2806 2813) the Hoare annotation is: true [2019-11-26 02:40:45,793 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 947) no Hoare annotation was computed. [2019-11-26 02:40:45,793 INFO L444 ceAbstractionStarter]: For program point L432(lines 432 438) no Hoare annotation was computed. [2019-11-26 02:40:45,793 INFO L444 ceAbstractionStarter]: For program point L432-2(lines 432 438) no Hoare annotation was computed. [2019-11-26 02:40:45,793 INFO L444 ceAbstractionStarter]: For program point L432-4(lines 432 438) no Hoare annotation was computed. [2019-11-26 02:40:45,794 INFO L444 ceAbstractionStarter]: For program point L432-6(lines 432 438) no Hoare annotation was computed. [2019-11-26 02:40:45,794 INFO L444 ceAbstractionStarter]: For program point L432-8(lines 432 438) no Hoare annotation was computed. [2019-11-26 02:40:45,794 INFO L444 ceAbstractionStarter]: For program point L432-10(lines 432 438) no Hoare annotation was computed. [2019-11-26 02:40:45,794 INFO L447 ceAbstractionStarter]: At program point L2815(lines 2802 2933) the Hoare annotation is: true [2019-11-26 02:40:45,794 INFO L447 ceAbstractionStarter]: At program point L2820(lines 2820 2827) the Hoare annotation is: true [2019-11-26 02:40:45,794 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 947) no Hoare annotation was computed. [2019-11-26 02:40:45,794 INFO L447 ceAbstractionStarter]: At program point L2829(lines 2816 2932) the Hoare annotation is: true [2019-11-26 02:40:45,794 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:40:45,794 INFO L440 ceAbstractionStarter]: At program point L190-5(lines 226 238) the Hoare annotation is: (= 1 ULTIMATE.start___utac_acc__EncryptVerify_spec__1_~tmp~9) [2019-11-26 02:40:45,794 INFO L447 ceAbstractionStarter]: At program point L2834(lines 2834 2841) the Hoare annotation is: true [2019-11-26 02:40:45,795 INFO L447 ceAbstractionStarter]: At program point L2843(lines 2830 2931) the Hoare annotation is: true [2019-11-26 02:40:45,795 INFO L440 ceAbstractionStarter]: At program point L2580(lines 2580 2587) the Hoare annotation is: (= 0 ~__ste_ClientAddressBook_size0~0) [2019-11-26 02:40:45,795 INFO L447 ceAbstractionStarter]: At program point L2580-1(lines 2580 2587) the Hoare annotation is: true [2019-11-26 02:40:45,795 INFO L444 ceAbstractionStarter]: For program point L2848(lines 2848 2852) no Hoare annotation was computed. [2019-11-26 02:40:45,795 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 947) no Hoare annotation was computed. [2019-11-26 02:40:45,795 INFO L447 ceAbstractionStarter]: At program point L2854(lines 2844 2930) the Hoare annotation is: true [2019-11-26 02:40:45,795 INFO L447 ceAbstractionStarter]: At program point L2859(lines 2859 2866) the Hoare annotation is: true [2019-11-26 02:40:45,795 INFO L447 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-26 02:40:45,795 INFO L447 ceAbstractionStarter]: At program point L2868(lines 2855 2929) the Hoare annotation is: true [2019-11-26 02:40:45,796 INFO L447 ceAbstractionStarter]: At program point L2873(lines 2873 2880) the Hoare annotation is: true [2019-11-26 02:40:45,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:40:45 BoogieIcfgContainer [2019-11-26 02:40:45,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:40:45,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:40:45,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:40:45,816 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:40:45,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:40:44" (3/4) ... [2019-11-26 02:40:45,819 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:40:45,912 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 866 nodes and edges [2019-11-26 02:40:45,923 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 208 nodes and edges [2019-11-26 02:40:45,929 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2019-11-26 02:40:45,936 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:40:45,943 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:40:45,945 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:40:46,383 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_930389f2-8aea-4d29-aec9-5c82cb3885f5/bin/utaipan/witness.graphml [2019-11-26 02:40:46,383 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:40:46,386 INFO L168 Benchmark]: Toolchain (without parser) took 13960.78 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 533.7 MB). Free memory was 939.3 MB in the beginning and 1.4 GB in the end (delta: -496.5 MB). Peak memory consumption was 443.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:40:46,387 INFO L168 Benchmark]: CDTParser took 0.23 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 02:40:46,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 827.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -148.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:40:46,387 INFO L168 Benchmark]: Boogie Procedure Inliner took 133.90 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 02:40:46,388 INFO L168 Benchmark]: Boogie Preprocessor took 109.34 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 02:40:46,395 INFO L168 Benchmark]: RCFGBuilder took 10878.83 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.8 MB). Peak memory consumption was 411.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:40:46,395 INFO L168 Benchmark]: TraceAbstraction took 1439.42 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 879.8 MB in the end (delta: 131.0 MB). Peak memory consumption was 131.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:40:46,396 INFO L168 Benchmark]: Witness Printer took 567.88 ms. Allocated memory was 1.3 GB in the beginning and 1.6 GB in the end (delta: 215.0 MB). Free memory was 879.8 MB in the beginning and 1.4 GB in the end (delta: -556.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:40:46,398 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 827.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -148.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 133.90 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 109.34 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. * RCFGBuilder took 10878.83 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.8 MB). Peak memory consumption was 411.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1439.42 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 879.8 MB in the end (delta: 131.0 MB). Peak memory consumption was 131.0 MB. Max. memory is 11.5 GB. * Witness Printer took 567.88 ms. Allocated memory was 1.3 GB in the beginning and 1.6 GB in the end (delta: 215.0 MB). Free memory was 879.8 MB in the beginning and 1.4 GB in the end (delta: -556.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 947]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 947]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 947]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 947]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 947]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 947]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 2859]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2806]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2802]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2901]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2580]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2580]: Loop Invariant Derived loop invariant: 0 == __ste_ClientAddressBook_size0 - InvariantResult [Line: 2887]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2834]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2792]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2830]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2844]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2788]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 == tmp - InvariantResult [Line: 2883]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2774]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2915]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2765]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2873]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2820]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2869]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2766]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2816]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 425]: Loop Invariant Derived loop invariant: 1 == tmp - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 1 == tmp - InvariantResult [Line: 2897]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 425]: Loop Invariant Derived loop invariant: 1 == tmp - InvariantResult [Line: 2855]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 425]: Loop Invariant Derived loop invariant: 0 == size && tmp == 1 - InvariantResult [Line: 425]: Loop Invariant Derived loop invariant: 1 == tmp - InvariantResult [Line: 2524]: Loop Invariant Derived loop invariant: 1 == tmp - InvariantResult [Line: 425]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2778]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 425]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 57 locations, 6 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 288 SDtfs, 145 SDslu, 255 SDs, 0 SdLazy, 24 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=3, 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, 19 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 35 PreInvPairs, 71 NumberOfFragments, 55 HoareAnnotationTreeSize, 35 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 35 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 883 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...