./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1d1cf5ef-bcae-4f78-aa3e-a35647b6cbdd/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1d1cf5ef-bcae-4f78-aa3e-a35647b6cbdd/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1d1cf5ef-bcae-4f78-aa3e-a35647b6cbdd/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1d1cf5ef-bcae-4f78-aa3e-a35647b6cbdd/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1d1cf5ef-bcae-4f78-aa3e-a35647b6cbdd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1d1cf5ef-bcae-4f78-aa3e-a35647b6cbdd/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 75f71671f83387eb35a445031d63abe79f5c0c7c ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:07:15,572 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:07:15,574 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:07:15,583 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:07:15,583 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:07:15,584 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:07:15,585 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:07:15,586 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:07:15,588 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:07:15,588 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:07:15,589 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:07:15,589 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:07:15,590 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:07:15,591 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:07:15,592 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:07:15,592 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:07:15,593 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:07:15,595 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:07:15,596 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:07:15,597 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:07:15,598 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:07:15,599 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:07:15,601 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:07:15,601 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:07:15,601 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:07:15,602 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:07:15,603 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:07:15,604 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:07:15,605 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:07:15,605 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:07:15,606 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:07:15,606 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:07:15,606 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:07:15,606 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:07:15,607 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:07:15,607 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:07:15,608 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1d1cf5ef-bcae-4f78-aa3e-a35647b6cbdd/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 22:07:15,619 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:07:15,619 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:07:15,620 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:07:15,620 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:07:15,620 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:07:15,620 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:07:15,620 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 22:07:15,620 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:07:15,621 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 22:07:15,621 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 22:07:15,621 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:07:15,621 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:07:15,622 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:07:15,622 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:07:15,622 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:07:15,623 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:07:15,623 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:07:15,624 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:07:15,624 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:07:15,624 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:07:15,624 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:07:15,624 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:07:15,624 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:07:15,624 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:07:15,625 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:07:15,625 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:07:15,625 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:07:15,625 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:07:15,625 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:07:15,625 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:07:15,625 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 22:07:15,626 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:07:15,626 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:07:15,626 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:07:15,626 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_1d1cf5ef-bcae-4f78-aa3e-a35647b6cbdd/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 -> 75f71671f83387eb35a445031d63abe79f5c0c7c [2018-10-26 22:07:15,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:07:15,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:07:15,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:07:15,667 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:07:15,668 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:07:15,669 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1d1cf5ef-bcae-4f78-aa3e-a35647b6cbdd/bin-2019/utaipan/../../sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.v+lhb-reducer.c [2018-10-26 22:07:15,718 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1d1cf5ef-bcae-4f78-aa3e-a35647b6cbdd/bin-2019/utaipan/data/0917b0285/66be0df1e2d042bc8127886bc4dcff75/FLAG7c891527a [2018-10-26 22:07:16,061 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:07:16,062 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1d1cf5ef-bcae-4f78-aa3e-a35647b6cbdd/sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.v+lhb-reducer.c [2018-10-26 22:07:16,072 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1d1cf5ef-bcae-4f78-aa3e-a35647b6cbdd/bin-2019/utaipan/data/0917b0285/66be0df1e2d042bc8127886bc4dcff75/FLAG7c891527a [2018-10-26 22:07:16,081 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1d1cf5ef-bcae-4f78-aa3e-a35647b6cbdd/bin-2019/utaipan/data/0917b0285/66be0df1e2d042bc8127886bc4dcff75 [2018-10-26 22:07:16,084 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:07:16,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:07:16,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:07:16,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:07:16,091 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:07:16,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:07:16" (1/1) ... [2018-10-26 22:07:16,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ccde937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:16, skipping insertion in model container [2018-10-26 22:07:16,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:07:16" (1/1) ... [2018-10-26 22:07:16,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:07:16,138 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:07:16,282 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:07:16,285 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:07:16,321 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:07:16,335 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:07:16,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:16 WrapperNode [2018-10-26 22:07:16,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:07:16,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:07:16,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:07:16,337 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:07:16,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:16" (1/1) ... [2018-10-26 22:07:16,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:16" (1/1) ... [2018-10-26 22:07:16,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:07:16,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:07:16,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:07:16,356 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:07:16,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:16" (1/1) ... [2018-10-26 22:07:16,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:16" (1/1) ... [2018-10-26 22:07:16,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:16" (1/1) ... [2018-10-26 22:07:16,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:16" (1/1) ... [2018-10-26 22:07:16,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:16" (1/1) ... [2018-10-26 22:07:16,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:16" (1/1) ... [2018-10-26 22:07:16,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:16" (1/1) ... [2018-10-26 22:07:16,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:07:16,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:07:16,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:07:16,377 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:07:16,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d1cf5ef-bcae-4f78-aa3e-a35647b6cbdd/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 [2018-10-26 22:07:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:07:16,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:07:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:07:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:07:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:07:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:07:17,075 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:07:17,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:07:17 BoogieIcfgContainer [2018-10-26 22:07:17,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:07:17,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:07:17,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:07:17,080 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:07:17,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:07:16" (1/3) ... [2018-10-26 22:07:17,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69f92758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:07:17, skipping insertion in model container [2018-10-26 22:07:17,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:07:16" (2/3) ... [2018-10-26 22:07:17,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69f92758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:07:17, skipping insertion in model container [2018-10-26 22:07:17,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:07:17" (3/3) ... [2018-10-26 22:07:17,086 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag_true-unreach-call.i.v+lhb-reducer.c [2018-10-26 22:07:17,096 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:07:17,102 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2018-10-26 22:07:17,115 INFO L257 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2018-10-26 22:07:17,154 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:07:17,154 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:07:17,154 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:07:17,154 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:07:17,154 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:07:17,154 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:07:17,154 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:07:17,155 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:07:17,173 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2018-10-26 22:07:17,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-26 22:07:17,178 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:17,178 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:17,180 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:17,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:17,185 INFO L82 PathProgramCache]: Analyzing trace with hash 288597337, now seen corresponding path program 1 times [2018-10-26 22:07:17,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:17,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:17,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:17,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:17,224 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:17,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:17,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:17,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 22:07:17,487 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:17,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 22:07:17,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 22:07:17,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 22:07:17,500 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 5 states. [2018-10-26 22:07:17,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:17,901 INFO L93 Difference]: Finished difference Result 127 states and 170 transitions. [2018-10-26 22:07:17,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 22:07:17,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-10-26 22:07:17,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:17,911 INFO L225 Difference]: With dead ends: 127 [2018-10-26 22:07:17,911 INFO L226 Difference]: Without dead ends: 111 [2018-10-26 22:07:17,914 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:07:17,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-10-26 22:07:17,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 73. [2018-10-26 22:07:17,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-10-26 22:07:17,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2018-10-26 22:07:17,948 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 12 [2018-10-26 22:07:17,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:17,949 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2018-10-26 22:07:17,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 22:07:17,949 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2018-10-26 22:07:17,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-26 22:07:17,949 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:17,949 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:17,950 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:17,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:17,951 INFO L82 PathProgramCache]: Analyzing trace with hash 285426585, now seen corresponding path program 1 times [2018-10-26 22:07:17,951 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:17,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:17,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:17,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:17,952 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:18,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:18,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:18,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 22:07:18,045 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:18,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 22:07:18,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 22:07:18,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 22:07:18,047 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand 5 states. [2018-10-26 22:07:18,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:18,365 INFO L93 Difference]: Finished difference Result 111 states and 117 transitions. [2018-10-26 22:07:18,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 22:07:18,366 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-10-26 22:07:18,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:18,367 INFO L225 Difference]: With dead ends: 111 [2018-10-26 22:07:18,367 INFO L226 Difference]: Without dead ends: 109 [2018-10-26 22:07:18,368 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:07:18,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-10-26 22:07:18,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 71. [2018-10-26 22:07:18,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-10-26 22:07:18,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2018-10-26 22:07:18,375 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 12 [2018-10-26 22:07:18,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:18,376 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2018-10-26 22:07:18,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 22:07:18,376 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2018-10-26 22:07:18,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 22:07:18,376 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:18,376 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:18,377 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:18,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:18,377 INFO L82 PathProgramCache]: Analyzing trace with hash -918238132, now seen corresponding path program 1 times [2018-10-26 22:07:18,377 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:18,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:18,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:18,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:18,380 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:18,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:18,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:18,690 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:07:18,690 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:18,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:07:18,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:07:18,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:07:18,691 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 6 states. [2018-10-26 22:07:18,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:18,844 INFO L93 Difference]: Finished difference Result 109 states and 115 transitions. [2018-10-26 22:07:18,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:07:18,846 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-10-26 22:07:18,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:18,848 INFO L225 Difference]: With dead ends: 109 [2018-10-26 22:07:18,848 INFO L226 Difference]: Without dead ends: 107 [2018-10-26 22:07:18,848 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-10-26 22:07:18,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-10-26 22:07:18,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 69. [2018-10-26 22:07:18,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-10-26 22:07:18,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2018-10-26 22:07:18,856 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 15 [2018-10-26 22:07:18,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:18,856 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2018-10-26 22:07:18,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:07:18,856 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2018-10-26 22:07:18,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 22:07:18,857 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:18,857 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:18,857 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:18,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:18,858 INFO L82 PathProgramCache]: Analyzing trace with hash -888931738, now seen corresponding path program 1 times [2018-10-26 22:07:18,858 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:18,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:18,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:18,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:18,859 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:18,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:18,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:18,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:07:18,924 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:18,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:07:18,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:07:18,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:07:18,925 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand 6 states. [2018-10-26 22:07:19,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:19,185 INFO L93 Difference]: Finished difference Result 105 states and 112 transitions. [2018-10-26 22:07:19,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 22:07:19,185 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-10-26 22:07:19,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:19,186 INFO L225 Difference]: With dead ends: 105 [2018-10-26 22:07:19,186 INFO L226 Difference]: Without dead ends: 103 [2018-10-26 22:07:19,187 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:07:19,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-10-26 22:07:19,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 67. [2018-10-26 22:07:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-10-26 22:07:19,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2018-10-26 22:07:19,193 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 15 [2018-10-26 22:07:19,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:19,193 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2018-10-26 22:07:19,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:07:19,193 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2018-10-26 22:07:19,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 22:07:19,194 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:19,194 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:19,195 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:19,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:19,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1599834060, now seen corresponding path program 1 times [2018-10-26 22:07:19,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:19,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:19,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:19,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:19,196 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:19,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:19,248 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:19,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:07:19,248 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:19,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:07:19,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:07:19,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:07:19,249 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand 6 states. [2018-10-26 22:07:19,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:19,444 INFO L93 Difference]: Finished difference Result 150 states and 159 transitions. [2018-10-26 22:07:19,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:07:19,444 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-10-26 22:07:19,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:19,445 INFO L225 Difference]: With dead ends: 150 [2018-10-26 22:07:19,445 INFO L226 Difference]: Without dead ends: 148 [2018-10-26 22:07:19,446 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-10-26 22:07:19,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-10-26 22:07:19,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 65. [2018-10-26 22:07:19,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-10-26 22:07:19,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2018-10-26 22:07:19,453 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 16 [2018-10-26 22:07:19,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:19,454 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2018-10-26 22:07:19,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:07:19,455 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2018-10-26 22:07:19,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 22:07:19,455 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:19,456 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:19,456 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:19,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:19,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1599820158, now seen corresponding path program 1 times [2018-10-26 22:07:19,457 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:19,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:19,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:19,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:19,458 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:19,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:19,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:19,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:07:19,519 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:19,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:07:19,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:07:19,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:07:19,520 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 6 states. [2018-10-26 22:07:19,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:19,623 INFO L93 Difference]: Finished difference Result 101 states and 107 transitions. [2018-10-26 22:07:19,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:07:19,624 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-10-26 22:07:19,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:19,625 INFO L225 Difference]: With dead ends: 101 [2018-10-26 22:07:19,625 INFO L226 Difference]: Without dead ends: 99 [2018-10-26 22:07:19,625 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-10-26 22:07:19,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-10-26 22:07:19,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 63. [2018-10-26 22:07:19,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-10-26 22:07:19,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2018-10-26 22:07:19,632 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 16 [2018-10-26 22:07:19,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:19,632 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2018-10-26 22:07:19,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:07:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2018-10-26 22:07:19,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 22:07:19,633 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:19,633 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:19,634 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:19,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:19,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1599392161, now seen corresponding path program 1 times [2018-10-26 22:07:19,636 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:19,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:19,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:19,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:19,637 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:19,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:19,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:07:19,685 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:19,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:07:19,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:07:19,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:07:19,686 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand 6 states. [2018-10-26 22:07:19,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:19,822 INFO L93 Difference]: Finished difference Result 99 states and 105 transitions. [2018-10-26 22:07:19,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:07:19,822 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-10-26 22:07:19,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:19,823 INFO L225 Difference]: With dead ends: 99 [2018-10-26 22:07:19,823 INFO L226 Difference]: Without dead ends: 95 [2018-10-26 22:07:19,824 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-10-26 22:07:19,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-10-26 22:07:19,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 59. [2018-10-26 22:07:19,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-10-26 22:07:19,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2018-10-26 22:07:19,830 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 16 [2018-10-26 22:07:19,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:19,830 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2018-10-26 22:07:19,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:07:19,830 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2018-10-26 22:07:19,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 22:07:19,831 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:19,831 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:19,832 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:19,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:19,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1787077023, now seen corresponding path program 1 times [2018-10-26 22:07:19,832 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:19,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:19,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:19,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:19,833 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:19,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:19,880 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:19,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:07:19,880 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:19,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:07:19,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:07:19,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:07:19,881 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 6 states. [2018-10-26 22:07:19,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:19,984 INFO L93 Difference]: Finished difference Result 93 states and 100 transitions. [2018-10-26 22:07:19,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 22:07:19,985 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-10-26 22:07:19,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:19,985 INFO L225 Difference]: With dead ends: 93 [2018-10-26 22:07:19,985 INFO L226 Difference]: Without dead ends: 87 [2018-10-26 22:07:19,986 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-10-26 22:07:19,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-10-26 22:07:19,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 55. [2018-10-26 22:07:19,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-10-26 22:07:19,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2018-10-26 22:07:19,991 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 16 [2018-10-26 22:07:19,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:19,992 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2018-10-26 22:07:19,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:07:19,992 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2018-10-26 22:07:19,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 22:07:19,992 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:19,993 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:19,993 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:19,993 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:19,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1944748480, now seen corresponding path program 1 times [2018-10-26 22:07:19,994 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:19,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:19,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:19,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:19,998 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:20,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:20,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:20,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-26 22:07:20,234 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:20,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 22:07:20,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 22:07:20,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:07:20,234 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 9 states. [2018-10-26 22:07:20,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:20,343 INFO L93 Difference]: Finished difference Result 94 states and 101 transitions. [2018-10-26 22:07:20,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:07:20,344 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2018-10-26 22:07:20,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:20,344 INFO L225 Difference]: With dead ends: 94 [2018-10-26 22:07:20,344 INFO L226 Difference]: Without dead ends: 92 [2018-10-26 22:07:20,345 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-10-26 22:07:20,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-10-26 22:07:20,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 53. [2018-10-26 22:07:20,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-10-26 22:07:20,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2018-10-26 22:07:20,349 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 17 [2018-10-26 22:07:20,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:20,349 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2018-10-26 22:07:20,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 22:07:20,349 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2018-10-26 22:07:20,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 22:07:20,350 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:20,350 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:20,351 INFO L424 AbstractCegarLoop]: === Iteration 10 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:20,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:20,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1945179456, now seen corresponding path program 1 times [2018-10-26 22:07:20,351 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:20,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:20,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:20,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:20,352 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:20,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:20,481 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:20,481 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-26 22:07:20,481 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:20,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 22:07:20,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 22:07:20,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:07:20,482 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 9 states. [2018-10-26 22:07:20,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:20,701 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2018-10-26 22:07:20,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:07:20,702 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2018-10-26 22:07:20,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:20,702 INFO L225 Difference]: With dead ends: 85 [2018-10-26 22:07:20,702 INFO L226 Difference]: Without dead ends: 83 [2018-10-26 22:07:20,703 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-10-26 22:07:20,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-10-26 22:07:20,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 51. [2018-10-26 22:07:20,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-10-26 22:07:20,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2018-10-26 22:07:20,710 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 17 [2018-10-26 22:07:20,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:20,710 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2018-10-26 22:07:20,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 22:07:20,710 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2018-10-26 22:07:20,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 22:07:20,710 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:20,711 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:20,711 INFO L424 AbstractCegarLoop]: === Iteration 11 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:20,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:20,711 INFO L82 PathProgramCache]: Analyzing trace with hash 449409464, now seen corresponding path program 1 times [2018-10-26 22:07:20,711 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:20,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:20,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:20,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:20,712 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:20,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:20,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:20,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:07:20,783 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:20,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:07:20,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:07:20,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:07:20,784 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 6 states. [2018-10-26 22:07:21,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:21,060 INFO L93 Difference]: Finished difference Result 115 states and 126 transitions. [2018-10-26 22:07:21,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 22:07:21,061 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-10-26 22:07:21,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:21,062 INFO L225 Difference]: With dead ends: 115 [2018-10-26 22:07:21,062 INFO L226 Difference]: Without dead ends: 113 [2018-10-26 22:07:21,062 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:07:21,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-10-26 22:07:21,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 49. [2018-10-26 22:07:21,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-10-26 22:07:21,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2018-10-26 22:07:21,066 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 17 [2018-10-26 22:07:21,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:21,069 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2018-10-26 22:07:21,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:07:21,069 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2018-10-26 22:07:21,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 22:07:21,070 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:21,070 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:21,070 INFO L424 AbstractCegarLoop]: === Iteration 12 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:21,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:21,071 INFO L82 PathProgramCache]: Analyzing trace with hash 450948664, now seen corresponding path program 1 times [2018-10-26 22:07:21,071 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:21,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:21,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:21,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:21,072 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:21,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:21,215 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:21,215 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:07:21,215 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:21,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:07:21,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:07:21,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:07:21,216 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 6 states. [2018-10-26 22:07:21,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:21,307 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2018-10-26 22:07:21,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 22:07:21,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-10-26 22:07:21,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:21,308 INFO L225 Difference]: With dead ends: 77 [2018-10-26 22:07:21,308 INFO L226 Difference]: Without dead ends: 75 [2018-10-26 22:07:21,309 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:07:21,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-10-26 22:07:21,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 47. [2018-10-26 22:07:21,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-10-26 22:07:21,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2018-10-26 22:07:21,312 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 17 [2018-10-26 22:07:21,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:21,313 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2018-10-26 22:07:21,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:07:21,313 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2018-10-26 22:07:21,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 22:07:21,313 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:21,313 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:21,316 INFO L424 AbstractCegarLoop]: === Iteration 13 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:21,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:21,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1048160016, now seen corresponding path program 1 times [2018-10-26 22:07:21,317 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:21,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:21,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:21,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:21,318 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:21,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:21,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:21,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:07:21,362 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:21,362 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:07:21,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:07:21,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:07:21,362 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 6 states. [2018-10-26 22:07:21,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:21,594 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2018-10-26 22:07:21,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 22:07:21,594 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-10-26 22:07:21,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:21,595 INFO L225 Difference]: With dead ends: 113 [2018-10-26 22:07:21,595 INFO L226 Difference]: Without dead ends: 111 [2018-10-26 22:07:21,595 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:07:21,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-10-26 22:07:21,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 45. [2018-10-26 22:07:21,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-10-26 22:07:21,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2018-10-26 22:07:21,599 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 18 [2018-10-26 22:07:21,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:21,600 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2018-10-26 22:07:21,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:07:21,600 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2018-10-26 22:07:21,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 22:07:21,600 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:21,600 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:21,601 INFO L424 AbstractCegarLoop]: === Iteration 14 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:21,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:21,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1046794596, now seen corresponding path program 1 times [2018-10-26 22:07:21,601 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:21,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:21,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:21,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:21,602 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:21,935 WARN L179 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-10-26 22:07:22,151 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 8 [2018-10-26 22:07:22,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:22,176 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:22,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-26 22:07:22,176 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:22,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 22:07:22,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 22:07:22,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:07:22,177 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 9 states. [2018-10-26 22:07:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:22,458 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2018-10-26 22:07:22,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:07:22,459 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-10-26 22:07:22,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:22,459 INFO L225 Difference]: With dead ends: 60 [2018-10-26 22:07:22,459 INFO L226 Difference]: Without dead ends: 58 [2018-10-26 22:07:22,460 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-10-26 22:07:22,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-10-26 22:07:22,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 43. [2018-10-26 22:07:22,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-10-26 22:07:22,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2018-10-26 22:07:22,465 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 18 [2018-10-26 22:07:22,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:22,465 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2018-10-26 22:07:22,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 22:07:22,465 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2018-10-26 22:07:22,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 22:07:22,466 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:22,466 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:22,466 INFO L424 AbstractCegarLoop]: === Iteration 15 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:22,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:22,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1094509846, now seen corresponding path program 1 times [2018-10-26 22:07:22,467 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:22,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:22,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:22,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:22,468 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:22,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:22,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:22,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-26 22:07:22,535 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:22,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 22:07:22,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 22:07:22,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:07:22,536 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 9 states. [2018-10-26 22:07:22,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:22,678 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2018-10-26 22:07:22,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 22:07:22,678 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-10-26 22:07:22,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:22,679 INFO L225 Difference]: With dead ends: 44 [2018-10-26 22:07:22,679 INFO L226 Difference]: Without dead ends: 40 [2018-10-26 22:07:22,679 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-10-26 22:07:22,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-10-26 22:07:22,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-10-26 22:07:22,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-26 22:07:22,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-10-26 22:07:22,685 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 18 [2018-10-26 22:07:22,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:22,685 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2018-10-26 22:07:22,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 22:07:22,685 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-10-26 22:07:22,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 22:07:22,685 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:22,685 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:22,686 INFO L424 AbstractCegarLoop]: === Iteration 16 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:22,690 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:22,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1866774741, now seen corresponding path program 1 times [2018-10-26 22:07:22,690 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:22,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:22,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:22,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:22,691 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:22,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:22,939 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:22,939 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-26 22:07:22,939 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:22,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 22:07:22,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 22:07:22,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:07:22,940 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 9 states. [2018-10-26 22:07:23,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:23,082 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2018-10-26 22:07:23,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:07:23,083 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-10-26 22:07:23,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:23,083 INFO L225 Difference]: With dead ends: 55 [2018-10-26 22:07:23,083 INFO L226 Difference]: Without dead ends: 53 [2018-10-26 22:07:23,084 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-10-26 22:07:23,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-10-26 22:07:23,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 37. [2018-10-26 22:07:23,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-26 22:07:23,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-10-26 22:07:23,088 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 19 [2018-10-26 22:07:23,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:23,088 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-10-26 22:07:23,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 22:07:23,088 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-10-26 22:07:23,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 22:07:23,089 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:23,089 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] [2018-10-26 22:07:23,091 INFO L424 AbstractCegarLoop]: === Iteration 17 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:23,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:23,092 INFO L82 PathProgramCache]: Analyzing trace with hash 947355911, now seen corresponding path program 1 times [2018-10-26 22:07:23,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:23,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:23,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:23,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:23,093 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:23,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:23,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:23,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 22:07:23,204 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:23,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:07:23,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:07:23,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:07:23,204 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 7 states. [2018-10-26 22:07:23,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:23,355 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2018-10-26 22:07:23,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 22:07:23,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-10-26 22:07:23,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:23,356 INFO L225 Difference]: With dead ends: 53 [2018-10-26 22:07:23,356 INFO L226 Difference]: Without dead ends: 51 [2018-10-26 22:07:23,357 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-10-26 22:07:23,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-26 22:07:23,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 35. [2018-10-26 22:07:23,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-10-26 22:07:23,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2018-10-26 22:07:23,361 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 20 [2018-10-26 22:07:23,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:23,361 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2018-10-26 22:07:23,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:07:23,362 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2018-10-26 22:07:23,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 22:07:23,362 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:23,362 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] [2018-10-26 22:07:23,363 INFO L424 AbstractCegarLoop]: === Iteration 18 === [mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:23,363 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:23,363 INFO L82 PathProgramCache]: Analyzing trace with hash -696734716, now seen corresponding path program 1 times [2018-10-26 22:07:23,363 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:07:23,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:23,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:23,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:23,364 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:07:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:23,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:23,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:23,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:07:23,771 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:07:23,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:07:23,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:07:23,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:07:23,772 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 6 states. [2018-10-26 22:07:24,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:24,008 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2018-10-26 22:07:24,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 22:07:24,008 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-10-26 22:07:24,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:24,008 INFO L225 Difference]: With dead ends: 49 [2018-10-26 22:07:24,009 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 22:07:24,009 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-10-26 22:07:24,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 22:07:24,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 22:07:24,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 22:07:24,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 22:07:24,010 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-10-26 22:07:24,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:24,010 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 22:07:24,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:07:24,013 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 22:07:24,013 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 22:07:24,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 22:07:24,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 22:07:24,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 22:07:24,294 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-26 22:07:24,502 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-10-26 22:07:24,671 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-10-26 22:07:25,443 WARN L179 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 13 [2018-10-26 22:07:25,445 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:07:25,445 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 22:07:25,445 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:07:25,445 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:07:25,446 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 22:07:25,446 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 22:07:25,446 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:07:25,446 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 390) no Hoare annotation was computed. [2018-10-26 22:07:25,446 INFO L425 ceAbstractionStarter]: For program point L283(lines 283 385) no Hoare annotation was computed. [2018-10-26 22:07:25,446 INFO L425 ceAbstractionStarter]: For program point L217(lines 217 239) no Hoare annotation was computed. [2018-10-26 22:07:25,446 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 397) no Hoare annotation was computed. [2018-10-26 22:07:25,446 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 391) no Hoare annotation was computed. [2018-10-26 22:07:25,446 INFO L425 ceAbstractionStarter]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 340) no Hoare annotation was computed. [2018-10-26 22:07:25,446 INFO L425 ceAbstractionStarter]: For program point L77(lines 77 87) no Hoare annotation was computed. [2018-10-26 22:07:25,446 INFO L425 ceAbstractionStarter]: For program point L135(lines 135 157) no Hoare annotation was computed. [2018-10-26 22:07:25,447 INFO L425 ceAbstractionStarter]: For program point L292(line 292) no Hoare annotation was computed. [2018-10-26 22:07:25,447 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 196) no Hoare annotation was computed. [2018-10-26 22:07:25,447 INFO L425 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2018-10-26 22:07:25,447 INFO L428 ceAbstractionStarter]: At program point L309(lines 27 390) the Hoare annotation is: true [2018-10-26 22:07:25,447 INFO L425 ceAbstractionStarter]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 231) no Hoare annotation was computed. [2018-10-26 22:07:25,447 INFO L425 ceAbstractionStarter]: For program point L210(lines 210 245) no Hoare annotation was computed. [2018-10-26 22:07:25,447 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 248) no Hoare annotation was computed. [2018-10-26 22:07:25,447 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2018-10-26 22:07:25,447 INFO L425 ceAbstractionStarter]: For program point L169(lines 169 193) no Hoare annotation was computed. [2018-10-26 22:07:25,447 INFO L425 ceAbstractionStarter]: For program point L359(lines 359 382) no Hoare annotation was computed. [2018-10-26 22:07:25,447 INFO L425 ceAbstractionStarter]: For program point L326(lines 326 349) no Hoare annotation was computed. [2018-10-26 22:07:25,448 INFO L425 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 171) no Hoare annotation was computed. [2018-10-26 22:07:25,448 INFO L425 ceAbstractionStarter]: For program point L260(lines 260 388) no Hoare annotation was computed. [2018-10-26 22:07:25,448 INFO L425 ceAbstractionStarter]: For program point L128(lines 128 195) no Hoare annotation was computed. [2018-10-26 22:07:25,448 INFO L425 ceAbstractionStarter]: For program point L219(line 219) no Hoare annotation was computed. [2018-10-26 22:07:25,448 INFO L425 ceAbstractionStarter]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 304) no Hoare annotation was computed. [2018-10-26 22:07:25,448 INFO L425 ceAbstractionStarter]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 361) no Hoare annotation was computed. [2018-10-26 22:07:25,448 INFO L421 ceAbstractionStarter]: At program point L244(lines 96 246) the Hoare annotation is: (and (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (<= 1 main_~main__t~0)) [2018-10-26 22:07:25,448 INFO L425 ceAbstractionStarter]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 292) no Hoare annotation was computed. [2018-10-26 22:07:25,448 INFO L425 ceAbstractionStarter]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 373) no Hoare annotation was computed. [2018-10-26 22:07:25,449 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-10-26 22:07:25,449 INFO L425 ceAbstractionStarter]: For program point L302(lines 302 310) no Hoare annotation was computed. [2018-10-26 22:07:25,449 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 397) no Hoare annotation was computed. [2018-10-26 22:07:25,449 INFO L425 ceAbstractionStarter]: For program point L137(line 137) no Hoare annotation was computed. [2018-10-26 22:07:25,449 INFO L425 ceAbstractionStarter]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 328) no Hoare annotation was computed. [2018-10-26 22:07:25,449 INFO L425 ceAbstractionStarter]: For program point L96(lines 96 246) no Hoare annotation was computed. [2018-10-26 22:07:25,449 INFO L425 ceAbstractionStarter]: For program point L319(lines 319 384) no Hoare annotation was computed. [2018-10-26 22:07:25,449 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 397) the Hoare annotation is: true [2018-10-26 22:07:25,449 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-10-26 22:07:25,449 INFO L425 ceAbstractionStarter]: For program point L47(line 47) no Hoare annotation was computed. [2018-10-26 22:07:25,449 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 67) no Hoare annotation was computed. [2018-10-26 22:07:25,449 INFO L425 ceAbstractionStarter]: For program point L171(line 171) no Hoare annotation was computed. [2018-10-26 22:07:25,450 INFO L425 ceAbstractionStarter]: For program point L361(line 361) no Hoare annotation was computed. [2018-10-26 22:07:25,450 INFO L425 ceAbstractionStarter]: For program point L328(line 328) no Hoare annotation was computed. [2018-10-26 22:07:25,450 INFO L425 ceAbstractionStarter]: For program point L229(lines 229 237) no Hoare annotation was computed. [2018-10-26 22:07:25,450 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 79) no Hoare annotation was computed. [2018-10-26 22:07:25,450 INFO L425 ceAbstractionStarter]: For program point L147(lines 147 155) no Hoare annotation was computed. [2018-10-26 22:07:25,458 INFO L425 ceAbstractionStarter]: For program point L304(line 304) no Hoare annotation was computed. [2018-10-26 22:07:25,458 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 396) no Hoare annotation was computed. [2018-10-26 22:07:25,458 INFO L425 ceAbstractionStarter]: For program point L271(lines 271 386) no Hoare annotation was computed. [2018-10-26 22:07:25,458 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 89) no Hoare annotation was computed. [2018-10-26 22:07:25,458 INFO L421 ceAbstractionStarter]: At program point L379(lines 277 386) the Hoare annotation is: (and (not (= 0 main_~__VERIFIER_assert__cond~13)) (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (= main_~__VERIFIER_assert__cond~12 1) (<= 0 main_~main__t~0)) [2018-10-26 22:07:25,459 INFO L421 ceAbstractionStarter]: At program point L346(lines 27 390) the Hoare annotation is: (and (or (<= 1 main_~main__t~0) (= main_~__VERIFIER_assert__cond~0 1)) (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (<= 0 main_~main__t~0)) [2018-10-26 22:07:25,459 INFO L425 ceAbstractionStarter]: For program point L181(lines 181 191) no Hoare annotation was computed. [2018-10-26 22:07:25,459 INFO L425 ceAbstractionStarter]: For program point L371(lines 371 380) no Hoare annotation was computed. [2018-10-26 22:07:25,459 INFO L425 ceAbstractionStarter]: For program point L338(lines 338 347) no Hoare annotation was computed. [2018-10-26 22:07:25,459 INFO L425 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 149) no Hoare annotation was computed. [2018-10-26 22:07:25,459 INFO L425 ceAbstractionStarter]: For program point L107(lines 107 198) no Hoare annotation was computed. [2018-10-26 22:07:25,459 INFO L425 ceAbstractionStarter]: For program point L231(line 231) no Hoare annotation was computed. [2018-10-26 22:07:25,459 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 109) no Hoare annotation was computed. [2018-10-26 22:07:25,459 INFO L421 ceAbstractionStarter]: At program point L190(lines 51 248) the Hoare annotation is: (and (<= main_~main__t~0 main_~main__tagbuf_len~0) (<= 1 main_~main__t~0)) [2018-10-26 22:07:25,459 INFO L425 ceAbstractionStarter]: For program point L149(line 149) no Hoare annotation was computed. [2018-10-26 22:07:25,459 INFO L425 ceAbstractionStarter]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 273) no Hoare annotation was computed. [2018-10-26 22:07:25,459 INFO L425 ceAbstractionStarter]: For program point L273(line 273) no Hoare annotation was computed. [2018-10-26 22:07:25,460 INFO L425 ceAbstractionStarter]: For program point L100(lines 100 204) no Hoare annotation was computed. [2018-10-26 22:07:25,460 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-10-26 22:07:25,460 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 250) no Hoare annotation was computed. [2018-10-26 22:07:25,460 INFO L425 ceAbstractionStarter]: For program point L290(lines 290 312) no Hoare annotation was computed. [2018-10-26 22:07:25,460 INFO L425 ceAbstractionStarter]: For program point L183(line 183) no Hoare annotation was computed. [2018-10-26 22:07:25,460 INFO L425 ceAbstractionStarter]: For program point L373(line 373) no Hoare annotation was computed. [2018-10-26 22:07:25,460 INFO L425 ceAbstractionStarter]: For program point L340(line 340) no Hoare annotation was computed. [2018-10-26 22:07:25,460 INFO L425 ceAbstractionStarter]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2018-10-26 22:07:25,460 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-10-26 22:07:25,460 INFO L425 ceAbstractionStarter]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 183) no Hoare annotation was computed. [2018-10-26 22:07:25,460 INFO L425 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2018-10-26 22:07:25,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:07:25 BoogieIcfgContainer [2018-10-26 22:07:25,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:07:25,476 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:07:25,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:07:25,476 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:07:25,477 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:07:17" (3/4) ... [2018-10-26 22:07:25,480 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 22:07:25,485 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 22:07:25,485 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 22:07:25,490 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-10-26 22:07:25,490 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 22:07:25,561 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1d1cf5ef-bcae-4f78-aa3e-a35647b6cbdd/bin-2019/utaipan/witness.graphml [2018-10-26 22:07:25,561 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:07:25,563 INFO L168 Benchmark]: Toolchain (without parser) took 9478.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 953.1 MB in the beginning and 1.0 GB in the end (delta: -66.3 MB). Peak memory consumption was 105.2 MB. Max. memory is 11.5 GB. [2018-10-26 22:07:25,564 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:07:25,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.76 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 939.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-10-26 22:07:25,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.93 ms. Allocated memory is still 1.0 GB. Free memory was 939.7 MB in the beginning and 937.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:07:25,564 INFO L168 Benchmark]: Boogie Preprocessor took 21.39 ms. Allocated memory is still 1.0 GB. Free memory is still 937.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:07:25,564 INFO L168 Benchmark]: RCFGBuilder took 698.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 937.0 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-10-26 22:07:25,565 INFO L168 Benchmark]: TraceAbstraction took 8399.17 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 35.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.6 MB). Peak memory consumption was 116.2 MB. Max. memory is 11.5 GB. [2018-10-26 22:07:25,565 INFO L168 Benchmark]: Witness Printer took 85.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2018-10-26 22:07:25,570 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 250.76 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 939.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.93 ms. Allocated memory is still 1.0 GB. Free memory was 939.7 MB in the beginning and 937.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.39 ms. Allocated memory is still 1.0 GB. Free memory is still 937.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 698.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 937.0 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8399.17 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 35.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.6 MB). Peak memory consumption was 116.2 MB. Max. memory is 11.5 GB. * Witness Printer took 85.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 304]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 292]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 328]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 137]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 171]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 340]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 183]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 109]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 219]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 79]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 361]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 373]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 273]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 47]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 231]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 121]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 149]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 67]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 277]: Loop Invariant Derived loop invariant: ((!(0 == __VERIFIER_assert__cond) && main__t + 1 <= main__tagbuf_len) && __VERIFIER_assert__cond == 1) && 0 <= main__t - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: main__t <= main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: main__t + 1 <= main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((1 <= main__t || __VERIFIER_assert__cond == 1) && main__t + 1 <= main__tagbuf_len) && 0 <= main__t - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 80 locations, 18 error locations. SAFE Result, 8.3s OverallTime, 18 OverallIterations, 1 TraceHistogramMax, 3.6s AutomataDifference, 0.0s DeadEndRemovalTime, 1.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 872 SDtfs, 2467 SDslu, 1673 SDs, 0 SdLazy, 1819 SolverSat, 263 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 614 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 14 NumberOfFragments, 54 HoareAnnotationTreeSize, 9 FomulaSimplifications, 9989709 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 16618 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 11454 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...