./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_3_true-unreach-call_true-no-overflow.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3_true-unreach-call_true-no-overflow.BV.c.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/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 c53759a150934ef20fe7ff264c4326cfaaab3702 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:48:00,069 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:48:00,070 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:48:00,078 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:48:00,078 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:48:00,079 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:48:00,079 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:48:00,081 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:48:00,082 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:48:00,082 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:48:00,083 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:48:00,083 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:48:00,084 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:48:00,084 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:48:00,085 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:48:00,085 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:48:00,086 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:48:00,087 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:48:00,088 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:48:00,089 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:48:00,090 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:48:00,091 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:48:00,092 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:48:00,092 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:48:00,093 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:48:00,093 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:48:00,094 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:48:00,094 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:48:00,094 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:48:00,095 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:48:00,095 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:48:00,096 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:48:00,096 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:48:00,096 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:48:00,097 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:48:00,097 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:48:00,098 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 09:48:00,105 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:48:00,105 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:48:00,105 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:48:00,105 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 09:48:00,106 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 09:48:00,106 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 09:48:00,106 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 09:48:00,106 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 09:48:00,106 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 09:48:00,106 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 09:48:00,106 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 09:48:00,106 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 09:48:00,106 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 09:48:00,107 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:48:00,107 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:48:00,107 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:48:00,107 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:48:00,107 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:48:00,107 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:48:00,107 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:48:00,108 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:48:00,108 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:48:00,108 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:48:00,108 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:48:00,108 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:48:00,108 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:48:00,108 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:48:00,108 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:48:00,109 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:48:00,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:48:00,109 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:48:00,109 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:48:00,109 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:48:00,109 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 09:48:00,109 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:48:00,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:48:00,109 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 09:48:00,110 INFO L133 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/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/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 -> c53759a150934ef20fe7ff264c4326cfaaab3702 [2018-11-18 09:48:00,131 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:48:00,140 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:48:00,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:48:00,143 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:48:00,143 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:48:00,143 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/utaipan/../../sv-benchmarks/c/bitvector/s3_clnt_3_true-unreach-call_true-no-overflow.BV.c.cil.c [2018-11-18 09:48:00,181 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/utaipan/data/0f00e60d1/deaf623bc257463abe69acb8aacd4f74/FLAG32f94563e [2018-11-18 09:48:00,621 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:48:00,621 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/sv-benchmarks/c/bitvector/s3_clnt_3_true-unreach-call_true-no-overflow.BV.c.cil.c [2018-11-18 09:48:00,629 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/utaipan/data/0f00e60d1/deaf623bc257463abe69acb8aacd4f74/FLAG32f94563e [2018-11-18 09:48:00,641 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/utaipan/data/0f00e60d1/deaf623bc257463abe69acb8aacd4f74 [2018-11-18 09:48:00,644 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:48:00,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:48:00,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:48:00,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:48:00,648 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:48:00,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:48:00" (1/1) ... [2018-11-18 09:48:00,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d0d35e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:00, skipping insertion in model container [2018-11-18 09:48:00,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:48:00" (1/1) ... [2018-11-18 09:48:00,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:48:00,688 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:48:00,848 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:48:00,851 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:48:00,889 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:48:00,898 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:48:00,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:00 WrapperNode [2018-11-18 09:48:00,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:48:00,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:48:00,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:48:00,899 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:48:00,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:00" (1/1) ... [2018-11-18 09:48:00,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:00" (1/1) ... [2018-11-18 09:48:00,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:48:00,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:48:00,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:48:00,955 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:48:00,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:00" (1/1) ... [2018-11-18 09:48:00,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:00" (1/1) ... [2018-11-18 09:48:00,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:00" (1/1) ... [2018-11-18 09:48:00,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:00" (1/1) ... [2018-11-18 09:48:00,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:00" (1/1) ... [2018-11-18 09:48:00,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:00" (1/1) ... [2018-11-18 09:48:00,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:00" (1/1) ... [2018-11-18 09:48:00,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:48:00,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:48:00,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:48:00,985 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:48:00,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/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 [2018-11-18 09:48:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:48:01,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:48:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2018-11-18 09:48:01,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2018-11-18 09:48:01,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:48:01,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:48:01,021 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:48:01,021 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:48:01,102 WARN L684 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 09:48:01,102 WARN L649 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 09:48:01,436 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:48:01,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:48:01 BoogieIcfgContainer [2018-11-18 09:48:01,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:48:01,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:48:01,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:48:01,439 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:48:01,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:48:00" (1/3) ... [2018-11-18 09:48:01,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfe599c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:48:01, skipping insertion in model container [2018-11-18 09:48:01,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:00" (2/3) ... [2018-11-18 09:48:01,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfe599c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:48:01, skipping insertion in model container [2018-11-18 09:48:01,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:48:01" (3/3) ... [2018-11-18 09:48:01,441 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3_true-unreach-call_true-no-overflow.BV.c.cil.c [2018-11-18 09:48:01,447 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:48:01,451 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:48:01,461 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:48:01,484 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:48:01,484 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:48:01,484 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:48:01,484 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:48:01,484 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:48:01,485 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:48:01,485 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:48:01,485 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:48:01,501 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2018-11-18 09:48:01,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 09:48:01,506 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:01,507 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:01,508 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:01,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:01,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1797654646, now seen corresponding path program 1 times [2018-11-18 09:48:01,513 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:01,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:01,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:01,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:01,549 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:01,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:48:01,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:01,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:01,648 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:01,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:01,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:01,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:01,665 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 3 states. [2018-11-18 09:48:01,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:01,804 INFO L93 Difference]: Finished difference Result 261 states and 437 transitions. [2018-11-18 09:48:01,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:01,805 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-11-18 09:48:01,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:01,813 INFO L225 Difference]: With dead ends: 261 [2018-11-18 09:48:01,813 INFO L226 Difference]: Without dead ends: 120 [2018-11-18 09:48:01,816 INFO L604 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 [2018-11-18 09:48:01,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-11-18 09:48:01,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2018-11-18 09:48:01,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-11-18 09:48:01,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 178 transitions. [2018-11-18 09:48:01,845 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 178 transitions. Word has length 31 [2018-11-18 09:48:01,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:01,845 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 178 transitions. [2018-11-18 09:48:01,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:01,846 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 178 transitions. [2018-11-18 09:48:01,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 09:48:01,846 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:01,847 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:01,847 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:01,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:01,847 INFO L82 PathProgramCache]: Analyzing trace with hash 871528874, now seen corresponding path program 1 times [2018-11-18 09:48:01,847 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:01,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:01,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:01,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:01,849 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:01,911 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:48:01,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:01,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:01,912 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:01,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:01,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:01,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:01,913 INFO L87 Difference]: Start difference. First operand 120 states and 178 transitions. Second operand 3 states. [2018-11-18 09:48:02,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:02,023 INFO L93 Difference]: Finished difference Result 242 states and 365 transitions. [2018-11-18 09:48:02,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:02,024 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2018-11-18 09:48:02,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:02,025 INFO L225 Difference]: With dead ends: 242 [2018-11-18 09:48:02,025 INFO L226 Difference]: Without dead ends: 139 [2018-11-18 09:48:02,026 INFO L604 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 [2018-11-18 09:48:02,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-11-18 09:48:02,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2018-11-18 09:48:02,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-11-18 09:48:02,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 199 transitions. [2018-11-18 09:48:02,033 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 199 transitions. Word has length 44 [2018-11-18 09:48:02,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:02,033 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 199 transitions. [2018-11-18 09:48:02,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:02,033 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 199 transitions. [2018-11-18 09:48:02,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 09:48:02,034 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:02,034 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:02,034 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:02,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:02,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1750703567, now seen corresponding path program 1 times [2018-11-18 09:48:02,035 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:02,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:02,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:02,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:02,036 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:02,094 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 09:48:02,095 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:02,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:02,095 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:02,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:02,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:02,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:02,096 INFO L87 Difference]: Start difference. First operand 136 states and 199 transitions. Second operand 3 states. [2018-11-18 09:48:02,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:02,126 INFO L93 Difference]: Finished difference Result 282 states and 411 transitions. [2018-11-18 09:48:02,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:02,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2018-11-18 09:48:02,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:02,128 INFO L225 Difference]: With dead ends: 282 [2018-11-18 09:48:02,128 INFO L226 Difference]: Without dead ends: 163 [2018-11-18 09:48:02,129 INFO L604 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 [2018-11-18 09:48:02,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-11-18 09:48:02,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2018-11-18 09:48:02,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-11-18 09:48:02,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 233 transitions. [2018-11-18 09:48:02,138 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 233 transitions. Word has length 59 [2018-11-18 09:48:02,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:02,138 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 233 transitions. [2018-11-18 09:48:02,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:02,139 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 233 transitions. [2018-11-18 09:48:02,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 09:48:02,140 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:02,140 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:02,140 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:02,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:02,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1610154957, now seen corresponding path program 1 times [2018-11-18 09:48:02,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:02,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:02,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:02,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:02,142 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:02,188 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 09:48:02,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:02,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:02,188 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:02,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:02,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:02,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:02,189 INFO L87 Difference]: Start difference. First operand 163 states and 233 transitions. Second operand 3 states. [2018-11-18 09:48:02,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:02,287 INFO L93 Difference]: Finished difference Result 304 states and 447 transitions. [2018-11-18 09:48:02,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:02,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2018-11-18 09:48:02,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:02,290 INFO L225 Difference]: With dead ends: 304 [2018-11-18 09:48:02,290 INFO L226 Difference]: Without dead ends: 185 [2018-11-18 09:48:02,291 INFO L604 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 [2018-11-18 09:48:02,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-11-18 09:48:02,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 181. [2018-11-18 09:48:02,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-11-18 09:48:02,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 256 transitions. [2018-11-18 09:48:02,300 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 256 transitions. Word has length 59 [2018-11-18 09:48:02,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:02,301 INFO L480 AbstractCegarLoop]: Abstraction has 181 states and 256 transitions. [2018-11-18 09:48:02,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:02,301 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 256 transitions. [2018-11-18 09:48:02,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-11-18 09:48:02,302 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:02,302 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:02,302 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:02,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:02,303 INFO L82 PathProgramCache]: Analyzing trace with hash -779490760, now seen corresponding path program 1 times [2018-11-18 09:48:02,303 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:02,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:02,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:02,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:02,304 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:02,353 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-18 09:48:02,354 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:02,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:02,354 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:02,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:02,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:02,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:02,355 INFO L87 Difference]: Start difference. First operand 181 states and 256 transitions. Second operand 3 states. [2018-11-18 09:48:02,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:02,394 INFO L93 Difference]: Finished difference Result 453 states and 655 transitions. [2018-11-18 09:48:02,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:02,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2018-11-18 09:48:02,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:02,396 INFO L225 Difference]: With dead ends: 453 [2018-11-18 09:48:02,396 INFO L226 Difference]: Without dead ends: 316 [2018-11-18 09:48:02,397 INFO L604 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 [2018-11-18 09:48:02,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2018-11-18 09:48:02,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2018-11-18 09:48:02,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2018-11-18 09:48:02,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 452 transitions. [2018-11-18 09:48:02,410 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 452 transitions. Word has length 77 [2018-11-18 09:48:02,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:02,411 INFO L480 AbstractCegarLoop]: Abstraction has 316 states and 452 transitions. [2018-11-18 09:48:02,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:02,411 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 452 transitions. [2018-11-18 09:48:02,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-11-18 09:48:02,412 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:02,413 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:02,413 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:02,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:02,413 INFO L82 PathProgramCache]: Analyzing trace with hash 124963336, now seen corresponding path program 1 times [2018-11-18 09:48:02,413 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:02,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:02,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:02,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:02,415 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:02,455 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-11-18 09:48:02,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:02,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:02,455 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:02,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:02,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:02,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:02,456 INFO L87 Difference]: Start difference. First operand 316 states and 452 transitions. Second operand 3 states. [2018-11-18 09:48:02,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:02,577 INFO L93 Difference]: Finished difference Result 638 states and 933 transitions. [2018-11-18 09:48:02,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:02,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2018-11-18 09:48:02,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:02,580 INFO L225 Difference]: With dead ends: 638 [2018-11-18 09:48:02,580 INFO L226 Difference]: Without dead ends: 366 [2018-11-18 09:48:02,581 INFO L604 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 [2018-11-18 09:48:02,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2018-11-18 09:48:02,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 360. [2018-11-18 09:48:02,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2018-11-18 09:48:02,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 506 transitions. [2018-11-18 09:48:02,593 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 506 transitions. Word has length 96 [2018-11-18 09:48:02,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:02,594 INFO L480 AbstractCegarLoop]: Abstraction has 360 states and 506 transitions. [2018-11-18 09:48:02,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:02,594 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 506 transitions. [2018-11-18 09:48:02,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-11-18 09:48:02,596 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:02,596 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:02,596 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:02,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:02,597 INFO L82 PathProgramCache]: Analyzing trace with hash 637746848, now seen corresponding path program 1 times [2018-11-18 09:48:02,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:02,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:02,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:02,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:02,601 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:02,663 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-11-18 09:48:02,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:02,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:02,663 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:02,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:02,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:02,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:02,664 INFO L87 Difference]: Start difference. First operand 360 states and 506 transitions. Second operand 3 states. [2018-11-18 09:48:02,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:02,713 INFO L93 Difference]: Finished difference Result 519 states and 733 transitions. [2018-11-18 09:48:02,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:02,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2018-11-18 09:48:02,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:02,715 INFO L225 Difference]: With dead ends: 519 [2018-11-18 09:48:02,715 INFO L226 Difference]: Without dead ends: 517 [2018-11-18 09:48:02,716 INFO L604 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 [2018-11-18 09:48:02,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2018-11-18 09:48:02,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2018-11-18 09:48:02,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2018-11-18 09:48:02,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 731 transitions. [2018-11-18 09:48:02,725 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 731 transitions. Word has length 117 [2018-11-18 09:48:02,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:02,726 INFO L480 AbstractCegarLoop]: Abstraction has 517 states and 731 transitions. [2018-11-18 09:48:02,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:02,726 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 731 transitions. [2018-11-18 09:48:02,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-18 09:48:02,727 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:02,727 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:02,728 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:02,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:02,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1630136903, now seen corresponding path program 1 times [2018-11-18 09:48:02,728 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:02,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:02,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:02,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:02,729 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:02,770 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-11-18 09:48:02,770 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:02,770 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:02,770 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:02,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:02,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:02,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:02,771 INFO L87 Difference]: Start difference. First operand 517 states and 731 transitions. Second operand 3 states. [2018-11-18 09:48:02,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:02,889 INFO L93 Difference]: Finished difference Result 1143 states and 1673 transitions. [2018-11-18 09:48:02,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:02,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2018-11-18 09:48:02,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:02,895 INFO L225 Difference]: With dead ends: 1143 [2018-11-18 09:48:02,895 INFO L226 Difference]: Without dead ends: 667 [2018-11-18 09:48:02,896 INFO L604 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 [2018-11-18 09:48:02,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2018-11-18 09:48:02,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 643. [2018-11-18 09:48:02,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2018-11-18 09:48:02,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 932 transitions. [2018-11-18 09:48:02,907 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 932 transitions. Word has length 136 [2018-11-18 09:48:02,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:02,908 INFO L480 AbstractCegarLoop]: Abstraction has 643 states and 932 transitions. [2018-11-18 09:48:02,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:02,908 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 932 transitions. [2018-11-18 09:48:02,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-11-18 09:48:02,909 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:02,909 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:02,909 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:02,910 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:02,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1967005518, now seen corresponding path program 1 times [2018-11-18 09:48:02,910 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:02,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:02,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:02,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:02,911 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:02,955 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-11-18 09:48:02,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:02,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:02,956 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:02,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:02,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:02,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:02,957 INFO L87 Difference]: Start difference. First operand 643 states and 932 transitions. Second operand 3 states. [2018-11-18 09:48:03,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:03,060 INFO L93 Difference]: Finished difference Result 1526 states and 2281 transitions. [2018-11-18 09:48:03,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:03,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2018-11-18 09:48:03,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:03,062 INFO L225 Difference]: With dead ends: 1526 [2018-11-18 09:48:03,062 INFO L226 Difference]: Without dead ends: 876 [2018-11-18 09:48:03,063 INFO L604 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 [2018-11-18 09:48:03,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2018-11-18 09:48:03,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 838. [2018-11-18 09:48:03,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2018-11-18 09:48:03,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1190 transitions. [2018-11-18 09:48:03,075 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1190 transitions. Word has length 164 [2018-11-18 09:48:03,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:03,075 INFO L480 AbstractCegarLoop]: Abstraction has 838 states and 1190 transitions. [2018-11-18 09:48:03,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:03,076 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1190 transitions. [2018-11-18 09:48:03,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-11-18 09:48:03,077 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:03,077 INFO L375 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:03,077 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:03,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:03,078 INFO L82 PathProgramCache]: Analyzing trace with hash 831710688, now seen corresponding path program 1 times [2018-11-18 09:48:03,078 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:03,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:03,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:03,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:03,079 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:03,121 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2018-11-18 09:48:03,122 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:03,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:03,122 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:03,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:03,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:03,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:03,123 INFO L87 Difference]: Start difference. First operand 838 states and 1190 transitions. Second operand 3 states. [2018-11-18 09:48:03,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:03,234 INFO L93 Difference]: Finished difference Result 1791 states and 2567 transitions. [2018-11-18 09:48:03,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:03,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2018-11-18 09:48:03,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:03,238 INFO L225 Difference]: With dead ends: 1791 [2018-11-18 09:48:03,238 INFO L226 Difference]: Without dead ends: 952 [2018-11-18 09:48:03,239 INFO L604 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 [2018-11-18 09:48:03,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2018-11-18 09:48:03,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 916. [2018-11-18 09:48:03,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 916 states. [2018-11-18 09:48:03,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1289 transitions. [2018-11-18 09:48:03,252 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1289 transitions. Word has length 186 [2018-11-18 09:48:03,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:03,252 INFO L480 AbstractCegarLoop]: Abstraction has 916 states and 1289 transitions. [2018-11-18 09:48:03,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:03,252 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1289 transitions. [2018-11-18 09:48:03,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-11-18 09:48:03,254 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:03,254 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:03,254 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:03,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:03,255 INFO L82 PathProgramCache]: Analyzing trace with hash 2043460745, now seen corresponding path program 1 times [2018-11-18 09:48:03,255 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:03,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:03,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:03,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:03,256 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:03,320 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-11-18 09:48:03,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:03,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:03,321 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:03,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:03,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:03,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:03,321 INFO L87 Difference]: Start difference. First operand 916 states and 1289 transitions. Second operand 3 states. [2018-11-18 09:48:03,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:03,418 INFO L93 Difference]: Finished difference Result 1947 states and 2762 transitions. [2018-11-18 09:48:03,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:03,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2018-11-18 09:48:03,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:03,421 INFO L225 Difference]: With dead ends: 1947 [2018-11-18 09:48:03,421 INFO L226 Difference]: Without dead ends: 1036 [2018-11-18 09:48:03,422 INFO L604 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 [2018-11-18 09:48:03,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2018-11-18 09:48:03,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1003. [2018-11-18 09:48:03,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2018-11-18 09:48:03,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1403 transitions. [2018-11-18 09:48:03,437 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1403 transitions. Word has length 211 [2018-11-18 09:48:03,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:03,438 INFO L480 AbstractCegarLoop]: Abstraction has 1003 states and 1403 transitions. [2018-11-18 09:48:03,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:03,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1403 transitions. [2018-11-18 09:48:03,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-11-18 09:48:03,440 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:03,440 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:03,440 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:03,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:03,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1076110091, now seen corresponding path program 1 times [2018-11-18 09:48:03,440 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:03,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:03,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:03,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:03,441 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:03,483 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-11-18 09:48:03,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:03,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:03,484 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:03,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:03,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:03,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:03,484 INFO L87 Difference]: Start difference. First operand 1003 states and 1403 transitions. Second operand 3 states. [2018-11-18 09:48:03,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:03,592 INFO L93 Difference]: Finished difference Result 2121 states and 2993 transitions. [2018-11-18 09:48:03,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:03,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2018-11-18 09:48:03,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:03,595 INFO L225 Difference]: With dead ends: 2121 [2018-11-18 09:48:03,595 INFO L226 Difference]: Without dead ends: 1135 [2018-11-18 09:48:03,597 INFO L604 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 [2018-11-18 09:48:03,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2018-11-18 09:48:03,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1099. [2018-11-18 09:48:03,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1099 states. [2018-11-18 09:48:03,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1538 transitions. [2018-11-18 09:48:03,613 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1538 transitions. Word has length 211 [2018-11-18 09:48:03,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:03,613 INFO L480 AbstractCegarLoop]: Abstraction has 1099 states and 1538 transitions. [2018-11-18 09:48:03,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:03,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1538 transitions. [2018-11-18 09:48:03,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-11-18 09:48:03,615 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:03,616 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:03,616 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:03,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:03,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1781247057, now seen corresponding path program 1 times [2018-11-18 09:48:03,616 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:03,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:03,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:03,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:03,617 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:03,685 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 455 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2018-11-18 09:48:03,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:03,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:03,686 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:03,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:03,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:03,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:03,687 INFO L87 Difference]: Start difference. First operand 1099 states and 1538 transitions. Second operand 3 states. [2018-11-18 09:48:03,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:03,718 INFO L93 Difference]: Finished difference Result 3206 states and 4499 transitions. [2018-11-18 09:48:03,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:03,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 242 [2018-11-18 09:48:03,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:03,723 INFO L225 Difference]: With dead ends: 3206 [2018-11-18 09:48:03,723 INFO L226 Difference]: Without dead ends: 2151 [2018-11-18 09:48:03,725 INFO L604 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 [2018-11-18 09:48:03,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2018-11-18 09:48:03,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 2149. [2018-11-18 09:48:03,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2149 states. [2018-11-18 09:48:03,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2149 states to 2149 states and 3013 transitions. [2018-11-18 09:48:03,757 INFO L78 Accepts]: Start accepts. Automaton has 2149 states and 3013 transitions. Word has length 242 [2018-11-18 09:48:03,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:03,757 INFO L480 AbstractCegarLoop]: Abstraction has 2149 states and 3013 transitions. [2018-11-18 09:48:03,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:03,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2149 states and 3013 transitions. [2018-11-18 09:48:03,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-11-18 09:48:03,773 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:03,773 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:03,773 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:03,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:03,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1546369585, now seen corresponding path program 1 times [2018-11-18 09:48:03,773 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:03,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:03,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:03,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:03,774 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:03,843 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2018-11-18 09:48:03,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:03,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:03,844 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:03,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:03,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:03,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:03,844 INFO L87 Difference]: Start difference. First operand 2149 states and 3013 transitions. Second operand 3 states. [2018-11-18 09:48:03,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:03,980 INFO L93 Difference]: Finished difference Result 4566 states and 6444 transitions. [2018-11-18 09:48:03,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:03,981 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 242 [2018-11-18 09:48:03,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:03,986 INFO L225 Difference]: With dead ends: 4566 [2018-11-18 09:48:03,986 INFO L226 Difference]: Without dead ends: 2431 [2018-11-18 09:48:03,988 INFO L604 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 [2018-11-18 09:48:03,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2018-11-18 09:48:04,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2365. [2018-11-18 09:48:04,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2365 states. [2018-11-18 09:48:04,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2365 states to 2365 states and 3331 transitions. [2018-11-18 09:48:04,023 INFO L78 Accepts]: Start accepts. Automaton has 2365 states and 3331 transitions. Word has length 242 [2018-11-18 09:48:04,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:04,023 INFO L480 AbstractCegarLoop]: Abstraction has 2365 states and 3331 transitions. [2018-11-18 09:48:04,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:04,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2365 states and 3331 transitions. [2018-11-18 09:48:04,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-11-18 09:48:04,026 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:04,026 INFO L375 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:04,027 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:04,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:04,027 INFO L82 PathProgramCache]: Analyzing trace with hash -736436024, now seen corresponding path program 1 times [2018-11-18 09:48:04,027 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:04,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:04,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:04,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:04,028 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:04,078 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2018-11-18 09:48:04,078 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:04,078 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:04,078 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:04,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:04,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:04,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:04,079 INFO L87 Difference]: Start difference. First operand 2365 states and 3331 transitions. Second operand 3 states. [2018-11-18 09:48:04,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:04,196 INFO L93 Difference]: Finished difference Result 4752 states and 6684 transitions. [2018-11-18 09:48:04,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:04,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 278 [2018-11-18 09:48:04,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:04,201 INFO L225 Difference]: With dead ends: 4752 [2018-11-18 09:48:04,201 INFO L226 Difference]: Without dead ends: 2413 [2018-11-18 09:48:04,204 INFO L604 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 [2018-11-18 09:48:04,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2018-11-18 09:48:04,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 2347. [2018-11-18 09:48:04,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2347 states. [2018-11-18 09:48:04,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 3277 transitions. [2018-11-18 09:48:04,235 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 3277 transitions. Word has length 278 [2018-11-18 09:48:04,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:04,235 INFO L480 AbstractCegarLoop]: Abstraction has 2347 states and 3277 transitions. [2018-11-18 09:48:04,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:04,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 3277 transitions. [2018-11-18 09:48:04,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2018-11-18 09:48:04,239 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:04,239 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:04,239 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:04,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:04,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1606552194, now seen corresponding path program 1 times [2018-11-18 09:48:04,239 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:04,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:04,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:04,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:04,240 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:04,394 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2018-11-18 09:48:04,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:04,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:04,395 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:04,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:04,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:04,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:04,396 INFO L87 Difference]: Start difference. First operand 2347 states and 3277 transitions. Second operand 3 states. [2018-11-18 09:48:04,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:04,483 INFO L93 Difference]: Finished difference Result 6966 states and 9733 transitions. [2018-11-18 09:48:04,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:04,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 287 [2018-11-18 09:48:04,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:04,497 INFO L225 Difference]: With dead ends: 6966 [2018-11-18 09:48:04,498 INFO L226 Difference]: Without dead ends: 4663 [2018-11-18 09:48:04,502 INFO L604 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 [2018-11-18 09:48:04,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4663 states. [2018-11-18 09:48:04,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4663 to 4661. [2018-11-18 09:48:04,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4661 states. [2018-11-18 09:48:04,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4661 states to 4661 states and 6493 transitions. [2018-11-18 09:48:04,599 INFO L78 Accepts]: Start accepts. Automaton has 4661 states and 6493 transitions. Word has length 287 [2018-11-18 09:48:04,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:04,599 INFO L480 AbstractCegarLoop]: Abstraction has 4661 states and 6493 transitions. [2018-11-18 09:48:04,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:04,599 INFO L276 IsEmpty]: Start isEmpty. Operand 4661 states and 6493 transitions. [2018-11-18 09:48:04,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2018-11-18 09:48:04,606 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:04,606 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:04,607 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:04,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:04,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1753430718, now seen corresponding path program 1 times [2018-11-18 09:48:04,607 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:04,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:04,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:04,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:04,608 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:04,682 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2018-11-18 09:48:04,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:04,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:04,682 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:04,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:04,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:04,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:04,683 INFO L87 Difference]: Start difference. First operand 4661 states and 6493 transitions. Second operand 3 states. [2018-11-18 09:48:04,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:04,858 INFO L93 Difference]: Finished difference Result 9355 states and 13024 transitions. [2018-11-18 09:48:04,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:04,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 287 [2018-11-18 09:48:04,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:04,873 INFO L225 Difference]: With dead ends: 9355 [2018-11-18 09:48:04,874 INFO L226 Difference]: Without dead ends: 4769 [2018-11-18 09:48:04,881 INFO L604 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 [2018-11-18 09:48:04,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4769 states. [2018-11-18 09:48:04,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4769 to 4661. [2018-11-18 09:48:04,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4661 states. [2018-11-18 09:48:04,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4661 states to 4661 states and 6385 transitions. [2018-11-18 09:48:04,993 INFO L78 Accepts]: Start accepts. Automaton has 4661 states and 6385 transitions. Word has length 287 [2018-11-18 09:48:04,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:04,993 INFO L480 AbstractCegarLoop]: Abstraction has 4661 states and 6385 transitions. [2018-11-18 09:48:04,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:04,994 INFO L276 IsEmpty]: Start isEmpty. Operand 4661 states and 6385 transitions. [2018-11-18 09:48:05,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2018-11-18 09:48:05,002 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:05,003 INFO L375 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:05,003 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:05,003 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:05,003 INFO L82 PathProgramCache]: Analyzing trace with hash -300774178, now seen corresponding path program 1 times [2018-11-18 09:48:05,003 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:05,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:05,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:05,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:05,004 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:05,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2018-11-18 09:48:05,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:05,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:05,121 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:05,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:05,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:05,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:05,122 INFO L87 Difference]: Start difference. First operand 4661 states and 6385 transitions. Second operand 3 states. [2018-11-18 09:48:05,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:05,285 INFO L93 Difference]: Finished difference Result 9853 states and 13390 transitions. [2018-11-18 09:48:05,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:05,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 316 [2018-11-18 09:48:05,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:05,300 INFO L225 Difference]: With dead ends: 9853 [2018-11-18 09:48:05,300 INFO L226 Difference]: Without dead ends: 5267 [2018-11-18 09:48:05,307 INFO L604 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 [2018-11-18 09:48:05,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5267 states. [2018-11-18 09:48:05,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5267 to 4847. [2018-11-18 09:48:05,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4847 states. [2018-11-18 09:48:05,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4847 states to 4847 states and 6631 transitions. [2018-11-18 09:48:05,405 INFO L78 Accepts]: Start accepts. Automaton has 4847 states and 6631 transitions. Word has length 316 [2018-11-18 09:48:05,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:05,406 INFO L480 AbstractCegarLoop]: Abstraction has 4847 states and 6631 transitions. [2018-11-18 09:48:05,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:05,406 INFO L276 IsEmpty]: Start isEmpty. Operand 4847 states and 6631 transitions. [2018-11-18 09:48:05,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-11-18 09:48:05,414 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:05,414 INFO L375 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:05,414 INFO L423 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:05,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:05,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1093022024, now seen corresponding path program 1 times [2018-11-18 09:48:05,415 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:05,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:05,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:05,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:05,416 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:05,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2018-11-18 09:48:05,509 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:05,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:48:05,509 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:05,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:05,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:05,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:48:05,512 INFO L87 Difference]: Start difference. First operand 4847 states and 6631 transitions. Second operand 3 states. [2018-11-18 09:48:05,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:05,664 INFO L93 Difference]: Finished difference Result 9943 states and 13492 transitions. [2018-11-18 09:48:05,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:05,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 317 [2018-11-18 09:48:05,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:05,676 INFO L225 Difference]: With dead ends: 9943 [2018-11-18 09:48:05,676 INFO L226 Difference]: Without dead ends: 4655 [2018-11-18 09:48:05,685 INFO L604 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 [2018-11-18 09:48:05,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4655 states. [2018-11-18 09:48:05,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4655 to 4637. [2018-11-18 09:48:05,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4637 states. [2018-11-18 09:48:05,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 6325 transitions. [2018-11-18 09:48:05,798 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 6325 transitions. Word has length 317 [2018-11-18 09:48:05,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:05,799 INFO L480 AbstractCegarLoop]: Abstraction has 4637 states and 6325 transitions. [2018-11-18 09:48:05,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:05,799 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 6325 transitions. [2018-11-18 09:48:05,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2018-11-18 09:48:05,807 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:05,807 INFO L375 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:05,807 INFO L423 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:05,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:05,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1068901372, now seen corresponding path program 1 times [2018-11-18 09:48:05,808 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:05,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:05,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:05,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:05,809 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:05,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 504 proven. 13 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2018-11-18 09:48:05,904 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:48:05,904 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:48:05,905 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 327 with the following transitions: [2018-11-18 09:48:05,907 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [13], [24], [30], [34], [40], [42], [45], [47], [52], [57], [62], [67], [70], [72], [77], [80], [82], [87], [90], [92], [97], [100], [102], [107], [110], [112], [117], [120], [122], [127], [132], [137], [142], [147], [150], [152], [157], [162], [167], [170], [172], [177], [180], [182], [187], [192], [197], [200], [210], [212], [215], [223], [238], [244], [249], [251], [254], [262], [265], [270], [273], [275], [278], [286], [289], [291], [293], [299], [302], [310], [312], [314], [317], [325], [330], [332], [335], [337], [342], [344], [349], [354], [356], [365], [370], [375], [377], [386], [391], [394], [402], [407], [409], [414], [425], [427], [452], [454], [520], [522], [535], [543], [547], [548], [549], [551] [2018-11-18 09:48:05,938 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:48:05,938 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:48:06,475 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:48:06,476 INFO L272 AbstractInterpreter]: Visited 109 different actions 347 times. Merged at 90 different actions 210 times. Widened at 3 different actions 3 times. Performed 1539 root evaluator evaluations with a maximum evaluation depth of 4. Performed 1539 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 35 fixpoints after 16 different actions. Largest state had 92 variables. [2018-11-18 09:48:06,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:06,502 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:48:06,502 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:48:06,502 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:48:06,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:06,521 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:48:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:06,606 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:48:06,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 941 trivial. 0 not checked. [2018-11-18 09:48:06,748 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:48:06,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 941 trivial. 0 not checked. [2018-11-18 09:48:06,880 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:48:06,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 5 [2018-11-18 09:48:06,880 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:06,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:48:06,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:48:06,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:48:06,882 INFO L87 Difference]: Start difference. First operand 4637 states and 6325 transitions. Second operand 3 states. [2018-11-18 09:48:06,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:06,965 INFO L93 Difference]: Finished difference Result 6954 states and 9469 transitions. [2018-11-18 09:48:06,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:48:06,966 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 326 [2018-11-18 09:48:06,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:06,976 INFO L225 Difference]: With dead ends: 6954 [2018-11-18 09:48:06,976 INFO L226 Difference]: Without dead ends: 4639 [2018-11-18 09:48:06,980 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 652 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:48:06,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2018-11-18 09:48:07,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4625. [2018-11-18 09:48:07,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4625 states. [2018-11-18 09:48:07,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4625 states to 4625 states and 6289 transitions. [2018-11-18 09:48:07,078 INFO L78 Accepts]: Start accepts. Automaton has 4625 states and 6289 transitions. Word has length 326 [2018-11-18 09:48:07,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:07,078 INFO L480 AbstractCegarLoop]: Abstraction has 4625 states and 6289 transitions. [2018-11-18 09:48:07,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:48:07,079 INFO L276 IsEmpty]: Start isEmpty. Operand 4625 states and 6289 transitions. [2018-11-18 09:48:07,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2018-11-18 09:48:07,086 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:07,086 INFO L375 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:07,086 INFO L423 AbstractCegarLoop]: === Iteration 21 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:07,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:07,087 INFO L82 PathProgramCache]: Analyzing trace with hash 934887866, now seen corresponding path program 1 times [2018-11-18 09:48:07,087 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:07,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:07,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:07,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:07,088 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:07,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 504 proven. 13 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2018-11-18 09:48:07,179 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:48:07,180 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:48:07,180 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 327 with the following transitions: [2018-11-18 09:48:07,180 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [13], [24], [30], [34], [40], [42], [45], [47], [52], [57], [62], [67], [70], [72], [77], [80], [82], [87], [90], [92], [97], [100], [102], [107], [110], [112], [117], [120], [122], [127], [132], [137], [142], [147], [150], [152], [157], [162], [167], [170], [172], [177], [180], [182], [187], [192], [197], [200], [210], [212], [215], [223], [238], [244], [249], [251], [254], [262], [265], [270], [273], [275], [278], [286], [291], [293], [299], [302], [310], [312], [314], [317], [325], [330], [332], [335], [337], [342], [344], [349], [354], [356], [365], [370], [375], [377], [386], [391], [394], [402], [407], [409], [414], [425], [427], [452], [454], [520], [522], [535], [543], [547], [548], [549], [551] [2018-11-18 09:48:07,183 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:48:07,183 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:48:07,481 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:48:07,482 INFO L272 AbstractInterpreter]: Visited 108 different actions 343 times. Merged at 90 different actions 210 times. Widened at 3 different actions 3 times. Performed 1533 root evaluator evaluations with a maximum evaluation depth of 4. Performed 1533 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 35 fixpoints after 16 different actions. Largest state had 92 variables. [2018-11-18 09:48:07,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:07,484 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:48:07,484 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:48:07,484 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:48:07,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:07,494 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:48:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:07,561 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:48:07,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 504 proven. 13 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2018-11-18 09:48:07,645 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:48:07,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 504 proven. 13 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2018-11-18 09:48:07,778 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:48:07,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2018-11-18 09:48:07,778 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:48:07,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:48:07,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:48:07,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:48:07,779 INFO L87 Difference]: Start difference. First operand 4625 states and 6289 transitions. Second operand 4 states. [2018-11-18 09:48:07,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:07,972 INFO L93 Difference]: Finished difference Result 8176 states and 11228 transitions. [2018-11-18 09:48:07,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:48:07,972 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 326 [2018-11-18 09:48:07,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:07,979 INFO L225 Difference]: With dead ends: 8176 [2018-11-18 09:48:07,979 INFO L226 Difference]: Without dead ends: 5753 [2018-11-18 09:48:07,983 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 652 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:48:07,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5753 states. [2018-11-18 09:48:08,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5753 to 4807. [2018-11-18 09:48:08,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4807 states. [2018-11-18 09:48:08,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4807 states to 4807 states and 6563 transitions. [2018-11-18 09:48:08,045 INFO L78 Accepts]: Start accepts. Automaton has 4807 states and 6563 transitions. Word has length 326 [2018-11-18 09:48:08,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:08,045 INFO L480 AbstractCegarLoop]: Abstraction has 4807 states and 6563 transitions. [2018-11-18 09:48:08,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:48:08,046 INFO L276 IsEmpty]: Start isEmpty. Operand 4807 states and 6563 transitions. [2018-11-18 09:48:08,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2018-11-18 09:48:08,051 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:08,051 INFO L375 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:08,051 INFO L423 AbstractCegarLoop]: === Iteration 22 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:08,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:08,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1027813780, now seen corresponding path program 1 times [2018-11-18 09:48:08,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:08,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:08,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:08,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:08,053 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 504 proven. 13 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2018-11-18 09:48:08,129 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:48:08,129 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:48:08,129 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 328 with the following transitions: [2018-11-18 09:48:08,129 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [13], [24], [28], [34], [40], [42], [45], [47], [52], [57], [62], [67], [70], [72], [77], [80], [82], [87], [90], [92], [97], [100], [102], [107], [110], [112], [117], [120], [122], [127], [132], [137], [142], [147], [150], [152], [157], [162], [167], [170], [172], [177], [180], [182], [187], [192], [197], [200], [210], [212], [215], [223], [238], [244], [249], [251], [254], [262], [265], [270], [273], [275], [278], [286], [289], [293], [299], [302], [310], [312], [314], [317], [325], [330], [332], [335], [337], [342], [344], [349], [354], [356], [365], [370], [375], [377], [386], [391], [394], [402], [407], [409], [414], [417], [422], [427], [452], [454], [520], [522], [535], [543], [547], [548], [549], [551] [2018-11-18 09:48:08,132 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:48:08,132 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:48:08,314 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:48:08,315 INFO L272 AbstractInterpreter]: Visited 109 different actions 347 times. Merged at 91 different actions 213 times. Widened at 4 different actions 4 times. Performed 1534 root evaluator evaluations with a maximum evaluation depth of 4. Performed 1534 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 35 fixpoints after 14 different actions. Largest state had 92 variables. [2018-11-18 09:48:08,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:08,325 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:48:08,325 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:48:08,325 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:48:08,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:08,338 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:48:08,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:08,390 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:48:08,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 504 proven. 13 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2018-11-18 09:48:08,478 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:48:08,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 504 proven. 13 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2018-11-18 09:48:08,571 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:48:08,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2018-11-18 09:48:08,571 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:48:08,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:48:08,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:48:08,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:48:08,572 INFO L87 Difference]: Start difference. First operand 4807 states and 6563 transitions. Second operand 4 states. [2018-11-18 09:48:08,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:08,727 INFO L93 Difference]: Finished difference Result 6107 states and 8375 transitions. [2018-11-18 09:48:08,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:48:08,727 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2018-11-18 09:48:08,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:08,731 INFO L225 Difference]: With dead ends: 6107 [2018-11-18 09:48:08,731 INFO L226 Difference]: Without dead ends: 2481 [2018-11-18 09:48:08,734 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:48:08,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2481 states. [2018-11-18 09:48:08,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2481 to 2481. [2018-11-18 09:48:08,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2481 states. [2018-11-18 09:48:08,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2481 states to 2481 states and 3400 transitions. [2018-11-18 09:48:08,762 INFO L78 Accepts]: Start accepts. Automaton has 2481 states and 3400 transitions. Word has length 327 [2018-11-18 09:48:08,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:08,762 INFO L480 AbstractCegarLoop]: Abstraction has 2481 states and 3400 transitions. [2018-11-18 09:48:08,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:48:08,762 INFO L276 IsEmpty]: Start isEmpty. Operand 2481 states and 3400 transitions. [2018-11-18 09:48:08,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2018-11-18 09:48:08,765 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:08,765 INFO L375 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:08,765 INFO L423 AbstractCegarLoop]: === Iteration 23 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:08,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:08,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1093305665, now seen corresponding path program 1 times [2018-11-18 09:48:08,765 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:08,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:08,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:08,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:08,766 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:08,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1360 backedges. 705 proven. 6 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2018-11-18 09:48:08,832 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:48:08,832 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:48:08,832 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 355 with the following transitions: [2018-11-18 09:48:08,832 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [13], [24], [30], [34], [40], [42], [45], [47], [52], [57], [62], [67], [70], [72], [77], [80], [82], [87], [90], [92], [97], [100], [102], [107], [110], [112], [117], [120], [122], [127], [132], [137], [142], [147], [150], [152], [157], [162], [167], [170], [172], [177], [180], [182], [187], [192], [197], [200], [210], [212], [215], [223], [238], [244], [249], [251], [254], [256], [262], [265], [270], [273], [275], [278], [286], [291], [293], [299], [302], [310], [312], [314], [317], [325], [330], [332], [335], [337], [342], [344], [349], [354], [356], [365], [370], [375], [377], [386], [391], [394], [402], [407], [409], [414], [425], [427], [452], [454], [520], [522], [535], [543], [547], [548], [549], [551] [2018-11-18 09:48:08,834 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:48:08,835 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:48:09,058 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:48:09,058 INFO L272 AbstractInterpreter]: Visited 109 different actions 429 times. Merged at 91 different actions 279 times. Widened at 4 different actions 4 times. Performed 2038 root evaluator evaluations with a maximum evaluation depth of 4. Performed 2038 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 51 fixpoints after 20 different actions. Largest state had 92 variables. [2018-11-18 09:48:09,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:09,069 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:48:09,069 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:48:09,069 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:48:09,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:09,086 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:48:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:09,135 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:48:09,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1360 backedges. 705 proven. 6 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2018-11-18 09:48:09,188 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:48:09,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1360 backedges. 705 proven. 6 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2018-11-18 09:48:09,263 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:48:09,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2018-11-18 09:48:09,263 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:48:09,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:48:09,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:48:09,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:48:09,264 INFO L87 Difference]: Start difference. First operand 2481 states and 3400 transitions. Second operand 4 states. [2018-11-18 09:48:09,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:09,510 INFO L93 Difference]: Finished difference Result 3569 states and 4835 transitions. [2018-11-18 09:48:09,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:48:09,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 354 [2018-11-18 09:48:09,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:09,512 INFO L225 Difference]: With dead ends: 3569 [2018-11-18 09:48:09,512 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 09:48:09,515 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 713 GetRequests, 708 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:48:09,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 09:48:09,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 09:48:09,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 09:48:09,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 09:48:09,516 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 354 [2018-11-18 09:48:09,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:09,516 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 09:48:09,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:48:09,517 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 09:48:09,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 09:48:09,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 09:48:09,535 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,542 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,544 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,556 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,559 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,561 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,599 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,600 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,600 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,605 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,628 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,629 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,634 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,634 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,653 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,659 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,661 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,678 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,691 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,692 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,693 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,693 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,696 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,704 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,716 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,716 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,717 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,717 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,718 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:48:09,990 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 3 [2018-11-18 09:48:10,176 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2018-11-18 09:48:10,378 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 09:48:10,378 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:48:10,378 INFO L425 ceAbstractionStarter]: For program point L432(lines 432 436) no Hoare annotation was computed. [2018-11-18 09:48:10,378 INFO L425 ceAbstractionStarter]: For program point L432-2(lines 202 534) no Hoare annotation was computed. [2018-11-18 09:48:10,378 INFO L428 ceAbstractionStarter]: At program point L201(lines 200 537) the Hoare annotation is: true [2018-11-18 09:48:10,379 INFO L421 ceAbstractionStarter]: At program point L168(lines 164 549) the Hoare annotation is: (and (<= 4432 ssl3_connect_~s__state~0) (<= ssl3_connect_~s__state~0 4512) (<= ssl3_connect_~blastFlag~0 4)) [2018-11-18 09:48:10,379 INFO L421 ceAbstractionStarter]: At program point L102(lines 101 570) the Hoare annotation is: (and (<= ssl3_connect_~blastFlag~0 2) (= ssl3_connect_~s__state~0 12292)) [2018-11-18 09:48:10,379 INFO L425 ceAbstractionStarter]: For program point L367(lines 367 371) no Hoare annotation was computed. [2018-11-18 09:48:10,379 INFO L425 ceAbstractionStarter]: For program point L401(lines 401 406) no Hoare annotation was computed. [2018-11-18 09:48:10,379 INFO L425 ceAbstractionStarter]: For program point L401-2(lines 401 406) no Hoare annotation was computed. [2018-11-18 09:48:10,379 INFO L425 ceAbstractionStarter]: For program point L170(lines 170 547) no Hoare annotation was computed. [2018-11-18 09:48:10,379 INFO L425 ceAbstractionStarter]: For program point L137(lines 137 558) no Hoare annotation was computed. [2018-11-18 09:48:10,379 INFO L425 ceAbstractionStarter]: For program point L104(lines 104 569) no Hoare annotation was computed. [2018-11-18 09:48:10,379 INFO L421 ceAbstractionStarter]: At program point L138(lines 134 559) the Hoare annotation is: (and (<= 4352 ssl3_connect_~s__state~0) (<= ssl3_connect_~blastFlag~0 4) (<= ssl3_connect_~s__state~0 4432)) [2018-11-18 09:48:10,379 INFO L421 ceAbstractionStarter]: At program point L535(lines 98 601) the Hoare annotation is: (let ((.cse1 (<= ssl3_connect_~s__state~0 4352)) (.cse2 (<= 4352 ssl3_connect_~s__state~0)) (.cse5 (<= ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse3 (= ssl3_connect_~s__hit~0 0)) (.cse4 (<= 4560 ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse0 (<= ssl3_connect_~blastFlag~0 4))) (or (<= ssl3_connect_~s__state~0 3) (and (<= 4432 ssl3_connect_~s__state~0) .cse0 (<= ssl3_connect_~s__state~0 4528)) (and (<= ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse1 .cse2 .cse0 (not .cse3)) (and .cse0 .cse4 .cse5 .cse1 .cse2 .cse3) (<= ssl3_connect_~blastFlag~0 2) (and .cse5 (<= 4560 ssl3_connect_~s__state~0) .cse0 .cse3 (<= ssl3_connect_~s__state~0 4560) .cse4) (and (= ssl3_connect_~s__state~0 4416) .cse0))) [2018-11-18 09:48:10,379 INFO L425 ceAbstractionStarter]: For program point L73(lines 73 81) no Hoare annotation was computed. [2018-11-18 09:48:10,380 INFO L425 ceAbstractionStarter]: For program point ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION(line 613) no Hoare annotation was computed. [2018-11-18 09:48:10,380 INFO L428 ceAbstractionStarter]: At program point L602(lines 97 603) the Hoare annotation is: true [2018-11-18 09:48:10,380 INFO L425 ceAbstractionStarter]: For program point L173(lines 173 546) no Hoare annotation was computed. [2018-11-18 09:48:10,380 INFO L425 ceAbstractionStarter]: For program point L140(lines 140 557) no Hoare annotation was computed. [2018-11-18 09:48:10,380 INFO L425 ceAbstractionStarter]: For program point L107(lines 107 568) no Hoare annotation was computed. [2018-11-18 09:48:10,380 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 376) no Hoare annotation was computed. [2018-11-18 09:48:10,380 INFO L425 ceAbstractionStarter]: For program point L372-2(lines 372 376) no Hoare annotation was computed. [2018-11-18 09:48:10,380 INFO L421 ceAbstractionStarter]: At program point L207(lines 104 569) the Hoare annotation is: (<= ssl3_connect_~blastFlag~0 2) [2018-11-18 09:48:10,380 INFO L421 ceAbstractionStarter]: At program point L174(lines 170 547) the Hoare annotation is: (and (<= 4432 ssl3_connect_~s__state~0) (<= ssl3_connect_~s__state~0 4512) (<= ssl3_connect_~blastFlag~0 4)) [2018-11-18 09:48:10,380 INFO L425 ceAbstractionStarter]: For program point L571(lines 571 599) no Hoare annotation was computed. [2018-11-18 09:48:10,380 INFO L425 ceAbstractionStarter]: For program point L76(lines 76 80) no Hoare annotation was computed. [2018-11-18 09:48:10,380 INFO L425 ceAbstractionStarter]: For program point L76-2(lines 73 81) no Hoare annotation was computed. [2018-11-18 09:48:10,380 INFO L425 ceAbstractionStarter]: For program point L572(lines 572 596) no Hoare annotation was computed. [2018-11-18 09:48:10,380 INFO L425 ceAbstractionStarter]: For program point L506-1(lines 202 534) no Hoare annotation was computed. [2018-11-18 09:48:10,381 INFO L425 ceAbstractionStarter]: For program point L341(lines 341 346) no Hoare annotation was computed. [2018-11-18 09:48:10,381 INFO L425 ceAbstractionStarter]: For program point L275(lines 275 279) no Hoare annotation was computed. [2018-11-18 09:48:10,381 INFO L425 ceAbstractionStarter]: For program point L308-1(lines 308 322) no Hoare annotation was computed. [2018-11-18 09:48:10,381 INFO L425 ceAbstractionStarter]: For program point L176(lines 176 545) no Hoare annotation was computed. [2018-11-18 09:48:10,381 INFO L425 ceAbstractionStarter]: For program point L143(lines 143 556) no Hoare annotation was computed. [2018-11-18 09:48:10,381 INFO L425 ceAbstractionStarter]: For program point L110(lines 110 567) no Hoare annotation was computed. [2018-11-18 09:48:10,381 INFO L425 ceAbstractionStarter]: For program point L606(lines 606 610) no Hoare annotation was computed. [2018-11-18 09:48:10,381 INFO L425 ceAbstractionStarter]: For program point L573(lines 573 582) no Hoare annotation was computed. [2018-11-18 09:48:10,381 INFO L425 ceAbstractionStarter]: For program point L606-2(lines 606 610) no Hoare annotation was computed. [2018-11-18 09:48:10,381 INFO L425 ceAbstractionStarter]: For program point L573-2(lines 572 594) no Hoare annotation was computed. [2018-11-18 09:48:10,381 INFO L421 ceAbstractionStarter]: At program point L144(lines 140 557) the Hoare annotation is: (and (<= 4432 ssl3_connect_~s__state~0) (<= ssl3_connect_~blastFlag~0 4) (<= ssl3_connect_~s__state~0 4448)) [2018-11-18 09:48:10,381 INFO L425 ceAbstractionStarter]: For program point L575(lines 575 579) no Hoare annotation was computed. [2018-11-18 09:48:10,381 INFO L425 ceAbstractionStarter]: For program point L443(lines 443 448) no Hoare annotation was computed. [2018-11-18 09:48:10,381 INFO L425 ceAbstractionStarter]: For program point L212(lines 212 216) no Hoare annotation was computed. [2018-11-18 09:48:10,381 INFO L425 ceAbstractionStarter]: For program point L179(lines 179 544) no Hoare annotation was computed. [2018-11-18 09:48:10,381 INFO L425 ceAbstractionStarter]: For program point L146(lines 146 555) no Hoare annotation was computed. [2018-11-18 09:48:10,382 INFO L425 ceAbstractionStarter]: For program point L212-2(lines 202 534) no Hoare annotation was computed. [2018-11-18 09:48:10,382 INFO L425 ceAbstractionStarter]: For program point L113(lines 113 566) no Hoare annotation was computed. [2018-11-18 09:48:10,382 INFO L425 ceAbstractionStarter]: For program point L477(lines 477 481) no Hoare annotation was computed. [2018-11-18 09:48:10,382 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 316) no Hoare annotation was computed. [2018-11-18 09:48:10,382 INFO L425 ceAbstractionStarter]: For program point L312-2(lines 310 322) no Hoare annotation was computed. [2018-11-18 09:48:10,382 INFO L421 ceAbstractionStarter]: At program point L180(lines 176 545) the Hoare annotation is: (and (<= 4432 ssl3_connect_~s__state~0) (<= ssl3_connect_~blastFlag~0 4) (<= ssl3_connect_~s__state~0 4528)) [2018-11-18 09:48:10,382 INFO L425 ceAbstractionStarter]: For program point L511-1(lines 511 515) no Hoare annotation was computed. [2018-11-18 09:48:10,382 INFO L425 ceAbstractionStarter]: For program point L412(lines 412 416) no Hoare annotation was computed. [2018-11-18 09:48:10,382 INFO L425 ceAbstractionStarter]: For program point L248(lines 248 253) no Hoare annotation was computed. [2018-11-18 09:48:10,382 INFO L425 ceAbstractionStarter]: For program point L182(lines 182 543) no Hoare annotation was computed. [2018-11-18 09:48:10,382 INFO L425 ceAbstractionStarter]: For program point L149(lines 149 554) no Hoare annotation was computed. [2018-11-18 09:48:10,382 INFO L425 ceAbstractionStarter]: For program point L116(lines 116 565) no Hoare annotation was computed. [2018-11-18 09:48:10,382 INFO L425 ceAbstractionStarter]: For program point L83(lines 83 91) no Hoare annotation was computed. [2018-11-18 09:48:10,382 INFO L425 ceAbstractionStarter]: For program point L83-1(lines 65 619) no Hoare annotation was computed. [2018-11-18 09:48:10,382 INFO L421 ceAbstractionStarter]: At program point L150(lines 146 555) the Hoare annotation is: (and (<= 4432 ssl3_connect_~s__state~0) (<= ssl3_connect_~s__state~0 4464) (<= ssl3_connect_~blastFlag~0 4)) [2018-11-18 09:48:10,383 INFO L425 ceAbstractionStarter]: For program point L84(lines 84 88) no Hoare annotation was computed. [2018-11-18 09:48:10,383 INFO L428 ceAbstractionStarter]: At program point ssl3_connectENTRY(lines 7 620) the Hoare annotation is: true [2018-11-18 09:48:10,383 INFO L425 ceAbstractionStarter]: For program point L482(lines 482 486) no Hoare annotation was computed. [2018-11-18 09:48:10,383 INFO L425 ceAbstractionStarter]: For program point L482-2(lines 482 486) no Hoare annotation was computed. [2018-11-18 09:48:10,383 INFO L425 ceAbstractionStarter]: For program point L284(lines 284 292) no Hoare annotation was computed. [2018-11-18 09:48:10,383 INFO L425 ceAbstractionStarter]: For program point L185(lines 185 542) no Hoare annotation was computed. [2018-11-18 09:48:10,383 INFO L425 ceAbstractionStarter]: For program point L152(lines 152 553) no Hoare annotation was computed. [2018-11-18 09:48:10,383 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 564) no Hoare annotation was computed. [2018-11-18 09:48:10,383 INFO L425 ceAbstractionStarter]: For program point L384(lines 384 388) no Hoare annotation was computed. [2018-11-18 09:48:10,383 INFO L425 ceAbstractionStarter]: For program point L351(lines 351 355) no Hoare annotation was computed. [2018-11-18 09:48:10,383 INFO L421 ceAbstractionStarter]: At program point L186(lines 182 543) the Hoare annotation is: (let ((.cse0 (<= 4432 ssl3_connect_~s__state~0)) (.cse1 (<= ssl3_connect_~blastFlag~0 4))) (or (and .cse0 (<= ssl3_connect_~s__state~0 4560) .cse1) (and .cse0 .cse1 (not (= ssl3_connect_~s__hit~0 0))))) [2018-11-18 09:48:10,383 INFO L421 ceAbstractionStarter]: At program point L120(lines 116 565) the Hoare annotation is: (and (<= ssl3_connect_~blastFlag~0 2) (<= 4352 ssl3_connect_~s__state~0) (<= ssl3_connect_~s__state~0 4432)) [2018-11-18 09:48:10,383 INFO L421 ceAbstractionStarter]: At program point L352(lines 65 619) the Hoare annotation is: false [2018-11-18 09:48:10,383 INFO L425 ceAbstractionStarter]: For program point $Ultimate##87(lines 202 536) no Hoare annotation was computed. [2018-11-18 09:48:10,384 INFO L428 ceAbstractionStarter]: At program point L617(lines 65 619) the Hoare annotation is: true [2018-11-18 09:48:10,384 INFO L425 ceAbstractionStarter]: For program point L584(lines 584 590) no Hoare annotation was computed. [2018-11-18 09:48:10,384 INFO L425 ceAbstractionStarter]: For program point L518(lines 518 522) no Hoare annotation was computed. [2018-11-18 09:48:10,384 INFO L425 ceAbstractionStarter]: For program point L518-2(lines 518 522) no Hoare annotation was computed. [2018-11-18 09:48:10,384 INFO L425 ceAbstractionStarter]: For program point $Ultimate##88(lines 202 536) no Hoare annotation was computed. [2018-11-18 09:48:10,384 INFO L425 ceAbstractionStarter]: For program point L287(lines 287 291) no Hoare annotation was computed. [2018-11-18 09:48:10,384 INFO L425 ceAbstractionStarter]: For program point L287-2(lines 202 534) no Hoare annotation was computed. [2018-11-18 09:48:10,384 INFO L425 ceAbstractionStarter]: For program point L188(lines 188 541) no Hoare annotation was computed. [2018-11-18 09:48:10,384 INFO L425 ceAbstractionStarter]: For program point L155(lines 155 552) no Hoare annotation was computed. [2018-11-18 09:48:10,384 INFO L425 ceAbstractionStarter]: For program point L122(lines 122 563) no Hoare annotation was computed. [2018-11-18 09:48:10,384 INFO L425 ceAbstractionStarter]: For program point L453(lines 453 457) no Hoare annotation was computed. [2018-11-18 09:48:10,384 INFO L425 ceAbstractionStarter]: For program point L356(lines 356 360) no Hoare annotation was computed. [2018-11-18 09:48:10,384 INFO L425 ceAbstractionStarter]: For program point L224(lines 224 241) no Hoare annotation was computed. [2018-11-18 09:48:10,384 INFO L425 ceAbstractionStarter]: For program point L191(lines 191 540) no Hoare annotation was computed. [2018-11-18 09:48:10,384 INFO L425 ceAbstractionStarter]: For program point L158(lines 158 551) no Hoare annotation was computed. [2018-11-18 09:48:10,384 INFO L425 ceAbstractionStarter]: For program point L224-2(lines 202 534) no Hoare annotation was computed. [2018-11-18 09:48:10,385 INFO L425 ceAbstractionStarter]: For program point L125(lines 125 562) no Hoare annotation was computed. [2018-11-18 09:48:10,385 INFO L425 ceAbstractionStarter]: For program point ssl3_connectEXIT(lines 7 620) no Hoare annotation was computed. [2018-11-18 09:48:10,385 INFO L421 ceAbstractionStarter]: At program point L192(lines 188 541) the Hoare annotation is: (or (and (<= ssl3_connect_~blastFlag~0 2) (<= 4560 ssl3_connect_~s__state~0)) (and (<= 4432 ssl3_connect_~s__state~0) (= ssl3_connect_~s__hit~0 0))) [2018-11-18 09:48:10,385 INFO L421 ceAbstractionStarter]: At program point L126(lines 122 563) the Hoare annotation is: (and (<= ssl3_connect_~blastFlag~0 2) (<= 4352 ssl3_connect_~s__state~0) (<= ssl3_connect_~s__state~0 4432)) [2018-11-18 09:48:10,385 INFO L425 ceAbstractionStarter]: For program point ssl3_connectFINAL(lines 7 620) no Hoare annotation was computed. [2018-11-18 09:48:10,385 INFO L425 ceAbstractionStarter]: For program point L490-1(lines 490 502) no Hoare annotation was computed. [2018-11-18 09:48:10,385 INFO L425 ceAbstractionStarter]: For program point L424(lines 424 428) no Hoare annotation was computed. [2018-11-18 09:48:10,385 INFO L425 ceAbstractionStarter]: For program point L226(lines 226 231) no Hoare annotation was computed. [2018-11-18 09:48:10,385 INFO L425 ceAbstractionStarter]: For program point L194(lines 194 539) no Hoare annotation was computed. [2018-11-18 09:48:10,385 INFO L425 ceAbstractionStarter]: For program point L161(lines 161 550) no Hoare annotation was computed. [2018-11-18 09:48:10,385 INFO L425 ceAbstractionStarter]: For program point L128(lines 128 561) no Hoare annotation was computed. [2018-11-18 09:48:10,385 INFO L425 ceAbstractionStarter]: For program point L525(lines 525 529) no Hoare annotation was computed. [2018-11-18 09:48:10,386 INFO L421 ceAbstractionStarter]: At program point L195(lines 194 539) the Hoare annotation is: (let ((.cse2 (<= ssl3_connect_~blastFlag~0 4)) (.cse0 (<= ssl3_connect_~s__state~0 4352)) (.cse1 (<= 4352 ssl3_connect_~s__state~0)) (.cse3 (= ssl3_connect_~s__hit~0 0))) (or (and (<= ssl3_connect_~blastFlag~0 2) .cse0 .cse1) (and (<= ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse0 .cse1 .cse2 (not .cse3)) (and .cse2 (<= 4560 ssl3_connect_~s__s3__tmp__next_state___0~0) (<= ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse0 .cse1 .cse3))) [2018-11-18 09:48:10,386 INFO L421 ceAbstractionStarter]: At program point L162(lines 152 553) the Hoare annotation is: (and (<= 4432 ssl3_connect_~s__state~0) (<= ssl3_connect_~s__state~0 4480) (<= ssl3_connect_~blastFlag~0 4)) [2018-11-18 09:48:10,386 INFO L425 ceAbstractionStarter]: For program point L493(lines 493 498) no Hoare annotation was computed. [2018-11-18 09:48:10,386 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 471) no Hoare annotation was computed. [2018-11-18 09:48:10,386 INFO L425 ceAbstractionStarter]: For program point L460-1(lines 460 471) no Hoare annotation was computed. [2018-11-18 09:48:10,386 INFO L425 ceAbstractionStarter]: For program point L262(lines 262 266) no Hoare annotation was computed. [2018-11-18 09:48:10,386 INFO L425 ceAbstractionStarter]: For program point L262-2(lines 202 534) no Hoare annotation was computed. [2018-11-18 09:48:10,386 INFO L425 ceAbstractionStarter]: For program point L395(lines 395 399) no Hoare annotation was computed. [2018-11-18 09:48:10,386 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 333) no Hoare annotation was computed. [2018-11-18 09:48:10,386 INFO L425 ceAbstractionStarter]: For program point L329-2(lines 202 534) no Hoare annotation was computed. [2018-11-18 09:48:10,386 INFO L425 ceAbstractionStarter]: For program point L197(lines 197 538) no Hoare annotation was computed. [2018-11-18 09:48:10,386 INFO L425 ceAbstractionStarter]: For program point L164(lines 164 549) no Hoare annotation was computed. [2018-11-18 09:48:10,386 INFO L425 ceAbstractionStarter]: For program point L131(lines 131 560) no Hoare annotation was computed. [2018-11-18 09:48:10,386 INFO L425 ceAbstractionStarter]: For program point L98(lines 98 601) no Hoare annotation was computed. [2018-11-18 09:48:10,387 INFO L425 ceAbstractionStarter]: For program point L98-2(lines 65 619) no Hoare annotation was computed. [2018-11-18 09:48:10,387 INFO L425 ceAbstractionStarter]: For program point L462(lines 462 468) no Hoare annotation was computed. [2018-11-18 09:48:10,387 INFO L428 ceAbstractionStarter]: At program point L198(lines 197 538) the Hoare annotation is: true [2018-11-18 09:48:10,387 INFO L421 ceAbstractionStarter]: At program point L132(lines 128 561) the Hoare annotation is: (and (<= ssl3_connect_~blastFlag~0 2) (<= 4352 ssl3_connect_~s__state~0) (<= ssl3_connect_~s__state~0 4432)) [2018-11-18 09:48:10,387 INFO L425 ceAbstractionStarter]: For program point L99(line 99) no Hoare annotation was computed. [2018-11-18 09:48:10,387 INFO L425 ceAbstractionStarter]: For program point L232(lines 232 237) no Hoare annotation was computed. [2018-11-18 09:48:10,387 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 303) no Hoare annotation was computed. [2018-11-18 09:48:10,387 INFO L425 ceAbstractionStarter]: For program point L299-2(lines 299 303) no Hoare annotation was computed. [2018-11-18 09:48:10,387 INFO L425 ceAbstractionStarter]: For program point L167(lines 167 548) no Hoare annotation was computed. [2018-11-18 09:48:10,387 INFO L425 ceAbstractionStarter]: For program point L134(lines 134 559) no Hoare annotation was computed. [2018-11-18 09:48:10,387 INFO L425 ceAbstractionStarter]: For program point L101(lines 101 570) no Hoare annotation was computed. [2018-11-18 09:48:10,387 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:48:10,387 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 09:48:10,387 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 09:48:10,388 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:48:10,388 INFO L425 ceAbstractionStarter]: For program point L626-1(line 626) no Hoare annotation was computed. [2018-11-18 09:48:10,388 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 621 631) the Hoare annotation is: true [2018-11-18 09:48:10,388 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 621 631) no Hoare annotation was computed. [2018-11-18 09:48:10,388 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 621 631) no Hoare annotation was computed. [2018-11-18 09:48:10,388 INFO L428 ceAbstractionStarter]: At program point L626(line 626) the Hoare annotation is: true [2018-11-18 09:48:10,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:48:10 BoogieIcfgContainer [2018-11-18 09:48:10,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:48:10,414 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:48:10,414 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:48:10,414 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:48:10,415 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:48:01" (3/4) ... [2018-11-18 09:48:10,423 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 09:48:10,428 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 09:48:10,428 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ssl3_connect [2018-11-18 09:48:10,428 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 09:48:10,435 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 09:48:10,436 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 09:48:10,436 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 09:48:10,500 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d5574c82-aa0b-4427-a24f-075a5bf0cf89/bin-2019/utaipan/witness.graphml [2018-11-18 09:48:10,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:48:10,501 INFO L168 Benchmark]: Toolchain (without parser) took 9856.93 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 827.9 MB). Free memory was 959.2 MB in the beginning and 1.3 GB in the end (delta: -364.4 MB). Peak memory consumption was 463.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:48:10,501 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:48:10,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.92 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 940.5 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-11-18 09:48:10,502 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:48:10,502 INFO L168 Benchmark]: Boogie Preprocessor took 29.72 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:48:10,502 INFO L168 Benchmark]: RCFGBuilder took 452.02 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. [2018-11-18 09:48:10,503 INFO L168 Benchmark]: TraceAbstraction took 8976.83 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 692.6 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -259.4 MB). Peak memory consumption was 433.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:48:10,503 INFO L168 Benchmark]: Witness Printer took 86.22 ms. Allocated memory is still 1.9 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:48:10,504 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 252.92 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 940.5 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.72 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 452.02 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8976.83 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 692.6 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -259.4 MB). Peak memory consumption was 433.2 MB. Max. memory is 11.5 GB. * Witness Printer took 86.22 ms. Allocated memory is still 1.9 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 613]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: (((((s__state <= 3 || ((4432 <= s__state && blastFlag <= 4) && s__state <= 4528)) || ((((s__s3__tmp__next_state___0 <= 3 && s__state <= 4352) && 4352 <= s__state) && blastFlag <= 4) && !(s__hit == 0))) || (((((blastFlag <= 4 && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__state <= 4352) && 4352 <= s__state) && s__hit == 0)) || blastFlag <= 2) || (((((s__s3__tmp__next_state___0 <= 4560 && 4560 <= s__state) && blastFlag <= 4) && s__hit == 0) && s__state <= 4560) && 4560 <= s__s3__tmp__next_state___0)) || (s__state == 4416 && blastFlag <= 4) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: (4432 <= s__state && s__state <= 4464) && blastFlag <= 4 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag <= 4) && s__state <= 4432 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: (blastFlag <= 2 && 4560 <= s__state) || (4432 <= s__state && s__hit == 0) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: (blastFlag <= 2 && 4352 <= s__state) && s__state <= 4432 - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: (4432 <= s__state && s__state <= 4512) && blastFlag <= 4 - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: (blastFlag <= 2 && 4352 <= s__state) && s__state <= 4432 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: (4432 <= s__state && s__state <= 4480) && blastFlag <= 4 - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: (((blastFlag <= 2 && s__state <= 4352) && 4352 <= s__state) || ((((s__s3__tmp__next_state___0 <= 3 && s__state <= 4352) && 4352 <= s__state) && blastFlag <= 4) && !(s__hit == 0))) || (((((blastFlag <= 4 && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__state <= 4352) && 4352 <= s__state) && s__hit == 0) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: blastFlag <= 2 && s__state == 12292 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4448 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: ((4432 <= s__state && s__state <= 4560) && blastFlag <= 4) || ((4432 <= s__state && blastFlag <= 4) && !(s__hit == 0)) - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: (blastFlag <= 2 && 4352 <= s__state) && s__state <= 4432 - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4528 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (4432 <= s__state && s__state <= 4512) && blastFlag <= 4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 137 locations, 1 error locations. SAFE Result, 8.9s OverallTime, 23 OverallIterations, 15 TraceHistogramMax, 2.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 4540 SDtfs, 1691 SDslu, 2646 SDs, 0 SdLazy, 2102 SolverSat, 533 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2741 GetRequests, 2704 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4847occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.3s AbstIntTime, 4 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 23 MinimizatonAttempts, 1822 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 27 PreInvPairs, 209 NumberOfFragments, 284 HoareAnnotationTreeSize, 27 FomulaSimplifications, 34384 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 27 FomulaSimplificationsInter, 6332 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 6026 NumberOfCodeBlocks, 6026 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 7328 ConstructedInterpolants, 0 QuantifiedInterpolants, 3084690 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2537 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 31 InterpolantComputations, 21 PerfectInterpolantSequences, 23175/23284 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...