./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f1a290b8-d595-48dc-9434-1f5f870b0174/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f1a290b8-d595-48dc-9434-1f5f870b0174/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f1a290b8-d595-48dc-9434-1f5f870b0174/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f1a290b8-d595-48dc-9434-1f5f870b0174/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.p+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f1a290b8-d595-48dc-9434-1f5f870b0174/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f1a290b8-d595-48dc-9434-1f5f870b0174/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 d63a23585cedb87d2d2ae4c59168b108a64280e1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 16:37:59,129 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 16:37:59,130 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 16:37:59,136 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 16:37:59,136 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 16:37:59,137 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 16:37:59,137 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 16:37:59,138 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 16:37:59,139 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 16:37:59,139 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 16:37:59,140 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 16:37:59,140 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 16:37:59,140 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 16:37:59,141 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 16:37:59,141 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 16:37:59,142 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 16:37:59,142 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 16:37:59,143 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 16:37:59,144 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 16:37:59,145 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 16:37:59,145 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 16:37:59,146 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 16:37:59,147 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 16:37:59,147 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 16:37:59,147 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 16:37:59,148 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 16:37:59,148 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 16:37:59,148 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 16:37:59,149 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 16:37:59,149 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 16:37:59,149 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 16:37:59,150 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 16:37:59,150 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 16:37:59,150 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 16:37:59,150 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 16:37:59,151 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 16:37:59,151 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f1a290b8-d595-48dc-9434-1f5f870b0174/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 16:37:59,158 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 16:37:59,158 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 16:37:59,159 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 16:37:59,159 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 16:37:59,159 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 16:37:59,159 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 16:37:59,159 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 16:37:59,159 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 16:37:59,159 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 16:37:59,159 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 16:37:59,160 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 16:37:59,160 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 16:37:59,160 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 16:37:59,160 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 16:37:59,160 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 16:37:59,160 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 16:37:59,160 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 16:37:59,160 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 16:37:59,160 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 16:37:59,161 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 16:37:59,161 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 16:37:59,161 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 16:37:59,161 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 16:37:59,161 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 16:37:59,161 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 16:37:59,161 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 16:37:59,161 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 16:37:59,161 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 16:37:59,161 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 16:37:59,161 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 16:37:59,162 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 16:37:59,162 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 16:37:59,162 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 16:37:59,162 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 16:37:59,162 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 16:37:59,162 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 16:37:59,162 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_f1a290b8-d595-48dc-9434-1f5f870b0174/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 -> d63a23585cedb87d2d2ae4c59168b108a64280e1 [2018-12-09 16:37:59,180 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 16:37:59,189 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 16:37:59,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 16:37:59,193 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 16:37:59,193 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 16:37:59,194 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f1a290b8-d595-48dc-9434-1f5f870b0174/bin-2019/utaipan/../../sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.p+lhb-reducer.c [2018-12-09 16:37:59,234 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f1a290b8-d595-48dc-9434-1f5f870b0174/bin-2019/utaipan/data/967a44ab6/4694f6adef844d0c804998f9a21f969b/FLAG6cfea22cf [2018-12-09 16:37:59,574 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 16:37:59,575 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f1a290b8-d595-48dc-9434-1f5f870b0174/sv-benchmarks/c/loop-invgen/apache-get-tag_true-unreach-call.i.p+lhb-reducer.c [2018-12-09 16:37:59,580 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f1a290b8-d595-48dc-9434-1f5f870b0174/bin-2019/utaipan/data/967a44ab6/4694f6adef844d0c804998f9a21f969b/FLAG6cfea22cf [2018-12-09 16:37:59,588 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f1a290b8-d595-48dc-9434-1f5f870b0174/bin-2019/utaipan/data/967a44ab6/4694f6adef844d0c804998f9a21f969b [2018-12-09 16:37:59,590 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 16:37:59,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 16:37:59,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 16:37:59,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 16:37:59,593 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 16:37:59,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:37:59" (1/1) ... [2018-12-09 16:37:59,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2817da2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:37:59, skipping insertion in model container [2018-12-09 16:37:59,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:37:59" (1/1) ... [2018-12-09 16:37:59,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 16:37:59,628 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 16:37:59,760 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:37:59,763 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 16:37:59,806 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:37:59,814 INFO L195 MainTranslator]: Completed translation [2018-12-09 16:37:59,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:37:59 WrapperNode [2018-12-09 16:37:59,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 16:37:59,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 16:37:59,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 16:37:59,815 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 16:37:59,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:37:59" (1/1) ... [2018-12-09 16:37:59,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:37:59" (1/1) ... [2018-12-09 16:37:59,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 16:37:59,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 16:37:59,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 16:37:59,862 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 16:37:59,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:37:59" (1/1) ... [2018-12-09 16:37:59,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:37:59" (1/1) ... [2018-12-09 16:37:59,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:37:59" (1/1) ... [2018-12-09 16:37:59,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:37:59" (1/1) ... [2018-12-09 16:37:59,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:37:59" (1/1) ... [2018-12-09 16:37:59,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:37:59" (1/1) ... [2018-12-09 16:37:59,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:37:59" (1/1) ... [2018-12-09 16:37:59,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 16:37:59,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 16:37:59,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 16:37:59,890 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 16:37:59,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:37:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f1a290b8-d595-48dc-9434-1f5f870b0174/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 [2018-12-09 16:37:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 16:37:59,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 16:37:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 16:37:59,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 16:37:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 16:37:59,924 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 16:38:00,243 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 16:38:00,243 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 16:38:00,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:38:00 BoogieIcfgContainer [2018-12-09 16:38:00,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 16:38:00,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 16:38:00,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 16:38:00,246 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 16:38:00,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:37:59" (1/3) ... [2018-12-09 16:38:00,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db222d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:38:00, skipping insertion in model container [2018-12-09 16:38:00,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:37:59" (2/3) ... [2018-12-09 16:38:00,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db222d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:38:00, skipping insertion in model container [2018-12-09 16:38:00,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:38:00" (3/3) ... [2018-12-09 16:38:00,248 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag_true-unreach-call.i.p+lhb-reducer.c [2018-12-09 16:38:00,254 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 16:38:00,258 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2018-12-09 16:38:00,269 INFO L257 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2018-12-09 16:38:00,290 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 16:38:00,291 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 16:38:00,291 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 16:38:00,291 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 16:38:00,291 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 16:38:00,291 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 16:38:00,291 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 16:38:00,291 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 16:38:00,306 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2018-12-09 16:38:00,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 16:38:00,309 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:00,309 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:00,311 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:00,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:00,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1915845654, now seen corresponding path program 1 times [2018-12-09 16:38:00,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:00,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:00,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:00,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:00,344 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:00,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:00,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:00,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 16:38:00,428 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:00,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 16:38:00,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 16:38:00,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 16:38:00,440 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 4 states. [2018-12-09 16:38:00,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:00,594 INFO L93 Difference]: Finished difference Result 135 states and 211 transitions. [2018-12-09 16:38:00,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 16:38:00,595 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-12-09 16:38:00,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:00,602 INFO L225 Difference]: With dead ends: 135 [2018-12-09 16:38:00,602 INFO L226 Difference]: Without dead ends: 118 [2018-12-09 16:38:00,604 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 16:38:00,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-12-09 16:38:00,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-12-09 16:38:00,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-12-09 16:38:00,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 139 transitions. [2018-12-09 16:38:00,631 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 139 transitions. Word has length 11 [2018-12-09 16:38:00,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:00,631 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 139 transitions. [2018-12-09 16:38:00,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 16:38:00,631 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 139 transitions. [2018-12-09 16:38:00,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 16:38:00,632 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:00,632 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:00,632 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:00,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:00,632 INFO L82 PathProgramCache]: Analyzing trace with hash 738329931, now seen corresponding path program 1 times [2018-12-09 16:38:00,632 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:00,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:00,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:00,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:00,633 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:00,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:00,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:00,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 16:38:00,661 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:00,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:38:00,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:38:00,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-09 16:38:00,663 INFO L87 Difference]: Start difference. First operand 118 states and 139 transitions. Second operand 6 states. [2018-12-09 16:38:00,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:00,853 INFO L93 Difference]: Finished difference Result 118 states and 139 transitions. [2018-12-09 16:38:00,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 16:38:00,854 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-12-09 16:38:00,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:00,855 INFO L225 Difference]: With dead ends: 118 [2018-12-09 16:38:00,855 INFO L226 Difference]: Without dead ends: 113 [2018-12-09 16:38:00,855 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-09 16:38:00,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-12-09 16:38:00,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2018-12-09 16:38:00,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-12-09 16:38:00,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 125 transitions. [2018-12-09 16:38:00,860 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 125 transitions. Word has length 12 [2018-12-09 16:38:00,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:00,860 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 125 transitions. [2018-12-09 16:38:00,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:38:00,861 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 125 transitions. [2018-12-09 16:38:00,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 16:38:00,861 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:00,861 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:00,861 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:00,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:00,862 INFO L82 PathProgramCache]: Analyzing trace with hash -108000398, now seen corresponding path program 1 times [2018-12-09 16:38:00,862 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:00,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:00,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:00,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:00,863 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:00,894 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:00,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 16:38:00,895 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:00,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:38:00,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:38:00,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 16:38:00,895 INFO L87 Difference]: Start difference. First operand 113 states and 125 transitions. Second operand 6 states. [2018-12-09 16:38:01,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:01,065 INFO L93 Difference]: Finished difference Result 148 states and 163 transitions. [2018-12-09 16:38:01,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 16:38:01,066 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-12-09 16:38:01,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:01,066 INFO L225 Difference]: With dead ends: 148 [2018-12-09 16:38:01,066 INFO L226 Difference]: Without dead ends: 146 [2018-12-09 16:38:01,067 INFO L631 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 [2018-12-09 16:38:01,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-12-09 16:38:01,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 111. [2018-12-09 16:38:01,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-12-09 16:38:01,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 123 transitions. [2018-12-09 16:38:01,071 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 123 transitions. Word has length 15 [2018-12-09 16:38:01,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:01,072 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 123 transitions. [2018-12-09 16:38:01,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:38:01,072 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 123 transitions. [2018-12-09 16:38:01,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 16:38:01,072 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:01,072 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:01,073 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:01,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:01,073 INFO L82 PathProgramCache]: Analyzing trace with hash 946958050, now seen corresponding path program 1 times [2018-12-09 16:38:01,073 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:01,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:01,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:01,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:01,074 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:01,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:01,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:01,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 16:38:01,104 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:01,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:38:01,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:38:01,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 16:38:01,105 INFO L87 Difference]: Start difference. First operand 111 states and 123 transitions. Second operand 6 states. [2018-12-09 16:38:01,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:01,273 INFO L93 Difference]: Finished difference Result 144 states and 159 transitions. [2018-12-09 16:38:01,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 16:38:01,273 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-12-09 16:38:01,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:01,274 INFO L225 Difference]: With dead ends: 144 [2018-12-09 16:38:01,274 INFO L226 Difference]: Without dead ends: 138 [2018-12-09 16:38:01,274 INFO L631 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 [2018-12-09 16:38:01,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-12-09 16:38:01,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 107. [2018-12-09 16:38:01,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-12-09 16:38:01,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 119 transitions. [2018-12-09 16:38:01,279 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 119 transitions. Word has length 16 [2018-12-09 16:38:01,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:01,279 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 119 transitions. [2018-12-09 16:38:01,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:38:01,279 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2018-12-09 16:38:01,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 16:38:01,279 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:01,279 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:01,280 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:01,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:01,280 INFO L82 PathProgramCache]: Analyzing trace with hash -695803485, now seen corresponding path program 1 times [2018-12-09 16:38:01,280 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:01,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:01,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:01,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:01,281 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:01,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:01,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:01,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 16:38:01,311 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:01,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:38:01,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:38:01,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 16:38:01,312 INFO L87 Difference]: Start difference. First operand 107 states and 119 transitions. Second operand 6 states. [2018-12-09 16:38:01,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:01,464 INFO L93 Difference]: Finished difference Result 172 states and 191 transitions. [2018-12-09 16:38:01,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 16:38:01,464 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-12-09 16:38:01,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:01,465 INFO L225 Difference]: With dead ends: 172 [2018-12-09 16:38:01,465 INFO L226 Difference]: Without dead ends: 170 [2018-12-09 16:38:01,465 INFO L631 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 [2018-12-09 16:38:01,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-12-09 16:38:01,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 105. [2018-12-09 16:38:01,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-12-09 16:38:01,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 117 transitions. [2018-12-09 16:38:01,470 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 117 transitions. Word has length 17 [2018-12-09 16:38:01,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:01,470 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 117 transitions. [2018-12-09 16:38:01,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:38:01,470 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 117 transitions. [2018-12-09 16:38:01,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 16:38:01,470 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:01,470 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:01,471 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:01,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:01,471 INFO L82 PathProgramCache]: Analyzing trace with hash -694264285, now seen corresponding path program 1 times [2018-12-09 16:38:01,471 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:01,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:01,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:01,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:01,472 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:01,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:01,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:01,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 16:38:01,503 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:01,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:38:01,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:38:01,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 16:38:01,503 INFO L87 Difference]: Start difference. First operand 105 states and 117 transitions. Second operand 6 states. [2018-12-09 16:38:01,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:01,652 INFO L93 Difference]: Finished difference Result 132 states and 147 transitions. [2018-12-09 16:38:01,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 16:38:01,652 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-12-09 16:38:01,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:01,653 INFO L225 Difference]: With dead ends: 132 [2018-12-09 16:38:01,653 INFO L226 Difference]: Without dead ends: 130 [2018-12-09 16:38:01,653 INFO L631 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 [2018-12-09 16:38:01,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-12-09 16:38:01,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 103. [2018-12-09 16:38:01,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-12-09 16:38:01,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 115 transitions. [2018-12-09 16:38:01,657 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 115 transitions. Word has length 17 [2018-12-09 16:38:01,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:01,657 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 115 transitions. [2018-12-09 16:38:01,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:38:01,657 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2018-12-09 16:38:01,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 16:38:01,658 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:01,658 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:01,658 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:01,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:01,658 INFO L82 PathProgramCache]: Analyzing trace with hash -95068443, now seen corresponding path program 1 times [2018-12-09 16:38:01,658 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:01,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:01,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:01,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:01,659 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:01,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:01,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:01,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 16:38:01,719 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:01,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 16:38:01,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 16:38:01,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-09 16:38:01,720 INFO L87 Difference]: Start difference. First operand 103 states and 115 transitions. Second operand 8 states. [2018-12-09 16:38:01,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:01,897 INFO L93 Difference]: Finished difference Result 120 states and 134 transitions. [2018-12-09 16:38:01,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 16:38:01,897 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-12-09 16:38:01,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:01,898 INFO L225 Difference]: With dead ends: 120 [2018-12-09 16:38:01,898 INFO L226 Difference]: Without dead ends: 118 [2018-12-09 16:38:01,898 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-12-09 16:38:01,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-12-09 16:38:01,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 101. [2018-12-09 16:38:01,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-12-09 16:38:01,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 113 transitions. [2018-12-09 16:38:01,902 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 113 transitions. Word has length 18 [2018-12-09 16:38:01,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:01,902 INFO L480 AbstractCegarLoop]: Abstraction has 101 states and 113 transitions. [2018-12-09 16:38:01,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 16:38:01,903 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2018-12-09 16:38:01,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 16:38:01,903 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:01,903 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:01,903 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:01,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:01,903 INFO L82 PathProgramCache]: Analyzing trace with hash -93703023, now seen corresponding path program 1 times [2018-12-09 16:38:01,903 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:01,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:01,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:01,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:01,904 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:01,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:01,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:01,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 16:38:01,930 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:01,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:38:01,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:38:01,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 16:38:01,931 INFO L87 Difference]: Start difference. First operand 101 states and 113 transitions. Second operand 6 states. [2018-12-09 16:38:02,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:02,091 INFO L93 Difference]: Finished difference Result 162 states and 181 transitions. [2018-12-09 16:38:02,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 16:38:02,091 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-12-09 16:38:02,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:02,092 INFO L225 Difference]: With dead ends: 162 [2018-12-09 16:38:02,092 INFO L226 Difference]: Without dead ends: 160 [2018-12-09 16:38:02,092 INFO L631 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 [2018-12-09 16:38:02,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-12-09 16:38:02,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 99. [2018-12-09 16:38:02,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-12-09 16:38:02,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2018-12-09 16:38:02,097 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 18 [2018-12-09 16:38:02,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:02,098 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2018-12-09 16:38:02,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:38:02,098 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2018-12-09 16:38:02,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 16:38:02,098 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:02,098 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:02,099 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:02,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:02,099 INFO L82 PathProgramCache]: Analyzing trace with hash -47353193, now seen corresponding path program 1 times [2018-12-09 16:38:02,099 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:02,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:02,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:02,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:02,100 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:02,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:02,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:02,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 16:38:02,157 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:02,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 16:38:02,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 16:38:02,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-09 16:38:02,158 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 8 states. [2018-12-09 16:38:02,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:02,344 INFO L93 Difference]: Finished difference Result 99 states and 111 transitions. [2018-12-09 16:38:02,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 16:38:02,345 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-12-09 16:38:02,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:02,346 INFO L225 Difference]: With dead ends: 99 [2018-12-09 16:38:02,346 INFO L226 Difference]: Without dead ends: 95 [2018-12-09 16:38:02,346 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-12-09 16:38:02,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-12-09 16:38:02,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2018-12-09 16:38:02,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-12-09 16:38:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 107 transitions. [2018-12-09 16:38:02,350 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 107 transitions. Word has length 18 [2018-12-09 16:38:02,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:02,350 INFO L480 AbstractCegarLoop]: Abstraction has 95 states and 107 transitions. [2018-12-09 16:38:02,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 16:38:02,351 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 107 transitions. [2018-12-09 16:38:02,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 16:38:02,351 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:02,351 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:02,352 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:02,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:02,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1390176726, now seen corresponding path program 1 times [2018-12-09 16:38:02,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:02,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:02,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:02,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:02,353 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:02,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:02,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:02,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 16:38:02,406 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:02,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 16:38:02,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 16:38:02,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-09 16:38:02,406 INFO L87 Difference]: Start difference. First operand 95 states and 107 transitions. Second operand 8 states. [2018-12-09 16:38:02,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:02,598 INFO L93 Difference]: Finished difference Result 111 states and 125 transitions. [2018-12-09 16:38:02,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 16:38:02,599 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-12-09 16:38:02,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:02,599 INFO L225 Difference]: With dead ends: 111 [2018-12-09 16:38:02,599 INFO L226 Difference]: Without dead ends: 109 [2018-12-09 16:38:02,600 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-12-09 16:38:02,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-12-09 16:38:02,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 93. [2018-12-09 16:38:02,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-12-09 16:38:02,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2018-12-09 16:38:02,603 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 19 [2018-12-09 16:38:02,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:02,603 INFO L480 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2018-12-09 16:38:02,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 16:38:02,603 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2018-12-09 16:38:02,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 16:38:02,604 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:02,604 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:02,604 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:02,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:02,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1166363704, now seen corresponding path program 1 times [2018-12-09 16:38:02,605 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:02,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:02,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:02,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:02,606 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:02,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:02,630 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:02,630 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 16:38:02,630 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:02,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 16:38:02,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 16:38:02,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-09 16:38:02,631 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand 7 states. [2018-12-09 16:38:02,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:02,752 INFO L93 Difference]: Finished difference Result 108 states and 123 transitions. [2018-12-09 16:38:02,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 16:38:02,752 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-09 16:38:02,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:02,753 INFO L225 Difference]: With dead ends: 108 [2018-12-09 16:38:02,753 INFO L226 Difference]: Without dead ends: 106 [2018-12-09 16:38:02,753 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-12-09 16:38:02,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-12-09 16:38:02,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 91. [2018-12-09 16:38:02,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-12-09 16:38:02,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2018-12-09 16:38:02,757 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 20 [2018-12-09 16:38:02,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:02,757 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2018-12-09 16:38:02,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 16:38:02,757 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2018-12-09 16:38:02,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 16:38:02,758 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:02,758 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:02,758 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:02,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:02,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1797533329, now seen corresponding path program 1 times [2018-12-09 16:38:02,759 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:02,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:02,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:02,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:02,760 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:02,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:02,786 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:02,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 16:38:02,786 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:02,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:38:02,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:38:02,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 16:38:02,787 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand 6 states. [2018-12-09 16:38:02,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:02,941 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2018-12-09 16:38:02,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 16:38:02,942 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-12-09 16:38:02,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:02,942 INFO L225 Difference]: With dead ends: 104 [2018-12-09 16:38:02,942 INFO L226 Difference]: Without dead ends: 58 [2018-12-09 16:38:02,943 INFO L631 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 [2018-12-09 16:38:02,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-12-09 16:38:02,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-12-09 16:38:02,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-12-09 16:38:02,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-12-09 16:38:02,944 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 21 [2018-12-09 16:38:02,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:02,944 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-12-09 16:38:02,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:38:02,945 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-12-09 16:38:02,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-12-09 16:38:02,946 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:02,946 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:02,946 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:02,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:02,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1203360725, now seen corresponding path program 1 times [2018-12-09 16:38:02,947 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:02,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:02,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:02,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:02,948 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:03,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:03,003 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:03,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 16:38:03,004 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:03,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 16:38:03,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 16:38:03,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-09 16:38:03,004 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 7 states. [2018-12-09 16:38:03,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:03,087 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2018-12-09 16:38:03,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 16:38:03,088 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-12-09 16:38:03,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:03,088 INFO L225 Difference]: With dead ends: 67 [2018-12-09 16:38:03,088 INFO L226 Difference]: Without dead ends: 65 [2018-12-09 16:38:03,089 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-12-09 16:38:03,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-12-09 16:38:03,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 56. [2018-12-09 16:38:03,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-12-09 16:38:03,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2018-12-09 16:38:03,091 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 48 [2018-12-09 16:38:03,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:03,091 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2018-12-09 16:38:03,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 16:38:03,092 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2018-12-09 16:38:03,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-12-09 16:38:03,092 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:03,092 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:03,092 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:03,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:03,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1203346823, now seen corresponding path program 1 times [2018-12-09 16:38:03,093 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:03,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:03,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:03,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:03,093 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:03,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:03,149 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:03,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 16:38:03,150 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:03,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 16:38:03,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 16:38:03,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-09 16:38:03,150 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 7 states. [2018-12-09 16:38:03,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:03,215 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2018-12-09 16:38:03,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 16:38:03,215 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-12-09 16:38:03,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:03,215 INFO L225 Difference]: With dead ends: 56 [2018-12-09 16:38:03,215 INFO L226 Difference]: Without dead ends: 54 [2018-12-09 16:38:03,216 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-12-09 16:38:03,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-09 16:38:03,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-12-09 16:38:03,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-09 16:38:03,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2018-12-09 16:38:03,217 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 48 [2018-12-09 16:38:03,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:03,217 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2018-12-09 16:38:03,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 16:38:03,217 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2018-12-09 16:38:03,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-12-09 16:38:03,218 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:03,218 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:03,218 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:03,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:03,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1350519771, now seen corresponding path program 1 times [2018-12-09 16:38:03,219 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:03,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:03,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:03,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:03,219 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:03,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:03,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:03,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 16:38:03,294 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:03,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 16:38:03,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 16:38:03,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 16:38:03,295 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 8 states. [2018-12-09 16:38:03,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:03,386 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2018-12-09 16:38:03,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 16:38:03,387 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-12-09 16:38:03,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:03,387 INFO L225 Difference]: With dead ends: 62 [2018-12-09 16:38:03,387 INFO L226 Difference]: Without dead ends: 60 [2018-12-09 16:38:03,388 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2018-12-09 16:38:03,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-12-09 16:38:03,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 52. [2018-12-09 16:38:03,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-09 16:38:03,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-12-09 16:38:03,389 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 49 [2018-12-09 16:38:03,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:03,390 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-12-09 16:38:03,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 16:38:03,390 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-12-09 16:38:03,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-12-09 16:38:03,390 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:38:03,390 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:38:03,391 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:38:03,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:38:03,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1350950747, now seen corresponding path program 1 times [2018-12-09 16:38:03,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:38:03,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:03,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:38:03,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:38:03,392 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:38:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:38:03,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:38:03,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:38:03,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 16:38:03,439 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:38:03,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 16:38:03,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 16:38:03,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 16:38:03,439 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 8 states. [2018-12-09 16:38:03,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:38:03,536 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-12-09 16:38:03,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 16:38:03,536 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-12-09 16:38:03,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:38:03,537 INFO L225 Difference]: With dead ends: 52 [2018-12-09 16:38:03,537 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 16:38:03,537 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2018-12-09 16:38:03,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 16:38:03,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 16:38:03,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 16:38:03,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 16:38:03,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-12-09 16:38:03,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:38:03,538 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 16:38:03,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 16:38:03,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 16:38:03,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 16:38:03,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 16:38:03,635 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 16:38:03,635 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 16:38:03,635 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 16:38:03,635 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 16:38:03,635 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 16:38:03,635 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 16:38:03,635 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 16:38:03,635 INFO L448 ceAbstractionStarter]: For program point L448(lines 448 977) no Hoare annotation was computed. [2018-12-09 16:38:03,635 INFO L448 ceAbstractionStarter]: For program point L861(lines 861 941) no Hoare annotation was computed. [2018-12-09 16:38:03,635 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 272) no Hoare annotation was computed. [2018-12-09 16:38:03,635 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 12 1001) no Hoare annotation was computed. [2018-12-09 16:38:03,636 INFO L448 ceAbstractionStarter]: For program point L531(lines 531 555) no Hoare annotation was computed. [2018-12-09 16:38:03,636 INFO L448 ceAbstractionStarter]: For program point L878(line 878) no Hoare annotation was computed. [2018-12-09 16:38:03,636 INFO L448 ceAbstractionStarter]: For program point L746(lines 746 757) no Hoare annotation was computed. [2018-12-09 16:38:03,636 INFO L448 ceAbstractionStarter]: For program point L168(line 168) no Hoare annotation was computed. [2018-12-09 16:38:03,636 INFO L448 ceAbstractionStarter]: For program point L796(lines 796 946) no Hoare annotation was computed. [2018-12-09 16:38:03,636 INFO L448 ceAbstractionStarter]: For program point L152(line 152) no Hoare annotation was computed. [2018-12-09 16:38:03,636 INFO L448 ceAbstractionStarter]: For program point L565(lines 565 968) no Hoare annotation was computed. [2018-12-09 16:38:03,636 INFO L448 ceAbstractionStarter]: For program point L912(lines 912 938) no Hoare annotation was computed. [2018-12-09 16:38:03,636 INFO L448 ceAbstractionStarter]: For program point L780(lines 780 948) no Hoare annotation was computed. [2018-12-09 16:38:03,636 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-12-09 16:38:03,636 INFO L448 ceAbstractionStarter]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 926) no Hoare annotation was computed. [2018-12-09 16:38:03,636 INFO L448 ceAbstractionStarter]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 264) no Hoare annotation was computed. [2018-12-09 16:38:03,636 INFO L448 ceAbstractionStarter]: For program point L516(lines 516 971) no Hoare annotation was computed. [2018-12-09 16:38:03,636 INFO L444 ceAbstractionStarter]: At program point L863(lines 21 995) the Hoare annotation is: (and (<= main_~main__t~0 main_~main__tagbuf_len~0) (<= 0 main_~main__t~0)) [2018-12-09 16:38:03,636 INFO L448 ceAbstractionStarter]: For program point L252(line 252) no Hoare annotation was computed. [2018-12-09 16:38:03,637 INFO L448 ceAbstractionStarter]: For program point L599(lines 599 623) no Hoare annotation was computed. [2018-12-09 16:38:03,637 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 995) no Hoare annotation was computed. [2018-12-09 16:38:03,637 INFO L448 ceAbstractionStarter]: For program point L814(lines 814 825) no Hoare annotation was computed. [2018-12-09 16:38:03,637 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 12 1001) no Hoare annotation was computed. [2018-12-09 16:38:03,637 INFO L448 ceAbstractionStarter]: For program point L633(lines 633 962) no Hoare annotation was computed. [2018-12-09 16:38:03,637 INFO L448 ceAbstractionStarter]: For program point L914(line 914) no Hoare annotation was computed. [2018-12-09 16:38:03,637 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 942) no Hoare annotation was computed. [2018-12-09 16:38:03,637 INFO L448 ceAbstractionStarter]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 252) no Hoare annotation was computed. [2018-12-09 16:38:03,637 INFO L448 ceAbstractionStarter]: For program point L138(lines 138 231) no Hoare annotation was computed. [2018-12-09 16:38:03,637 INFO L448 ceAbstractionStarter]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 214) no Hoare annotation was computed. [2018-12-09 16:38:03,637 INFO L448 ceAbstractionStarter]: For program point L584(lines 584 965) no Hoare annotation was computed. [2018-12-09 16:38:03,637 INFO L448 ceAbstractionStarter]: For program point L320(lines 320 988) no Hoare annotation was computed. [2018-12-09 16:38:03,637 INFO L448 ceAbstractionStarter]: For program point L667(lines 667 691) no Hoare annotation was computed. [2018-12-09 16:38:03,637 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2018-12-09 16:38:03,637 INFO L448 ceAbstractionStarter]: For program point L304(lines 304 990) no Hoare annotation was computed. [2018-12-09 16:38:03,638 INFO L448 ceAbstractionStarter]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 890) no Hoare annotation was computed. [2018-12-09 16:38:03,638 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 168) no Hoare annotation was computed. [2018-12-09 16:38:03,638 INFO L444 ceAbstractionStarter]: At program point L899(lines 60 994) the Hoare annotation is: (and (<= main_~main__t~0 main_~main__tagbuf_len~0) (<= 1 main_~main__t~0)) [2018-12-09 16:38:03,638 INFO L448 ceAbstractionStarter]: For program point L701(lines 701 956) no Hoare annotation was computed. [2018-12-09 16:38:03,638 INFO L448 ceAbstractionStarter]: For program point L338(lines 338 349) no Hoare annotation was computed. [2018-12-09 16:38:03,638 INFO L448 ceAbstractionStarter]: For program point L140(line 140) no Hoare annotation was computed. [2018-12-09 16:38:03,638 INFO L448 ceAbstractionStarter]: For program point L652(lines 652 959) no Hoare annotation was computed. [2018-12-09 16:38:03,638 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 51) no Hoare annotation was computed. [2018-12-09 16:38:03,638 INFO L451 ceAbstractionStarter]: At program point L999(lines 17 1000) the Hoare annotation is: true [2018-12-09 16:38:03,638 INFO L448 ceAbstractionStarter]: For program point L388(lines 388 982) no Hoare annotation was computed. [2018-12-09 16:38:03,638 INFO L448 ceAbstractionStarter]: For program point L735(lines 735 759) no Hoare annotation was computed. [2018-12-09 16:38:03,638 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 280) no Hoare annotation was computed. [2018-12-09 16:38:03,638 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 152) no Hoare annotation was computed. [2018-12-09 16:38:03,638 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 984) no Hoare annotation was computed. [2018-12-09 16:38:03,638 INFO L448 ceAbstractionStarter]: For program point L769(lines 769 950) no Hoare annotation was computed. [2018-12-09 16:38:03,638 INFO L448 ceAbstractionStarter]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 878) no Hoare annotation was computed. [2018-12-09 16:38:03,638 INFO L448 ceAbstractionStarter]: For program point L406(lines 406 417) no Hoare annotation was computed. [2018-12-09 16:38:03,639 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2018-12-09 16:38:03,639 INFO L448 ceAbstractionStarter]: For program point L720(lines 720 953) no Hoare annotation was computed. [2018-12-09 16:38:03,639 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-09 16:38:03,639 INFO L448 ceAbstractionStarter]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 202) no Hoare annotation was computed. [2018-12-09 16:38:03,639 INFO L448 ceAbstractionStarter]: For program point L456(lines 456 976) no Hoare annotation was computed. [2018-12-09 16:38:03,639 INFO L444 ceAbstractionStarter]: At program point L935(lines 853 942) the Hoare annotation is: (and (<= main_~main__t~0 main_~main__tagbuf_len~0) (= main_~__VERIFIER_assert__cond~14 1) (<= 1 main_~main__t~0)) [2018-12-09 16:38:03,639 INFO L448 ceAbstractionStarter]: For program point L869(lines 869 940) no Hoare annotation was computed. [2018-12-09 16:38:03,639 INFO L448 ceAbstractionStarter]: For program point L803(lines 803 827) no Hoare annotation was computed. [2018-12-09 16:38:03,639 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 228) no Hoare annotation was computed. [2018-12-09 16:38:03,639 INFO L448 ceAbstractionStarter]: For program point L60(lines 60 994) no Hoare annotation was computed. [2018-12-09 16:38:03,639 INFO L448 ceAbstractionStarter]: For program point L440(lines 440 978) no Hoare annotation was computed. [2018-12-09 16:38:03,639 INFO L448 ceAbstractionStarter]: For program point L110(lines 110 118) no Hoare annotation was computed. [2018-12-09 16:38:03,639 INFO L448 ceAbstractionStarter]: For program point L837(lines 837 944) no Hoare annotation was computed. [2018-12-09 16:38:03,640 INFO L448 ceAbstractionStarter]: For program point L127(lines 127 279) no Hoare annotation was computed. [2018-12-09 16:38:03,640 INFO L448 ceAbstractionStarter]: For program point L474(lines 474 485) no Hoare annotation was computed. [2018-12-09 16:38:03,640 INFO L448 ceAbstractionStarter]: For program point L788(lines 788 947) no Hoare annotation was computed. [2018-12-09 16:38:03,640 INFO L448 ceAbstractionStarter]: For program point L243(lines 243 278) no Hoare annotation was computed. [2018-12-09 16:38:03,640 INFO L448 ceAbstractionStarter]: For program point L78(lines 78 281) no Hoare annotation was computed. [2018-12-09 16:38:03,640 INFO L448 ceAbstractionStarter]: For program point L524(lines 524 970) no Hoare annotation was computed. [2018-12-09 16:38:03,640 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 992) no Hoare annotation was computed. [2018-12-09 16:38:03,640 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 53) no Hoare annotation was computed. [2018-12-09 16:38:03,640 INFO L448 ceAbstractionStarter]: For program point L508(lines 508 972) no Hoare annotation was computed. [2018-12-09 16:38:03,640 INFO L448 ceAbstractionStarter]: For program point L888(lines 888 900) no Hoare annotation was computed. [2018-12-09 16:38:03,640 INFO L444 ceAbstractionStarter]: At program point L277(lines 127 279) the Hoare annotation is: (and (<= main_~main__t~0 main_~main__tagbuf_len~0) (not (= main_~main__tagbuf_len~0 main_~main__t~0)) (<= 1 main_~main__t~0)) [2018-12-09 16:38:03,640 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 186) no Hoare annotation was computed. [2018-12-09 16:38:03,640 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-12-09 16:38:03,640 INFO L448 ceAbstractionStarter]: For program point L327(lines 327 351) no Hoare annotation was computed. [2018-12-09 16:38:03,640 INFO L448 ceAbstractionStarter]: For program point L542(lines 542 553) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 12 1001) the Hoare annotation is: true [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L212(lines 212 224) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L592(lines 592 964) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 986) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L262(lines 262 270) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L576(lines 576 966) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L890(line 890) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 989) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L180(line 180) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L395(lines 395 419) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L131(lines 131 237) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L98(lines 98 120) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L610(lines 610 621) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 180) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L924(lines 924 936) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L214(line 214) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L660(lines 660 958) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L429(lines 429 980) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L264(line 264) no Hoare annotation was computed. [2018-12-09 16:38:03,641 INFO L448 ceAbstractionStarter]: For program point L644(lines 644 960) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point L380(lines 380 983) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 1000) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point L463(lines 463 487) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point L876(lines 876 902) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point L166(lines 166 188) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point L678(lines 678 689) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point L67(lines 67 283) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point L926(line 926) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 914) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point L728(lines 728 952) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point L150(lines 150 229) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point L497(lines 497 974) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point L200(lines 200 226) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 954) no Hoare annotation was computed. [2018-12-09 16:38:03,642 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2018-12-09 16:38:03,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:38:03 BoogieIcfgContainer [2018-12-09 16:38:03,653 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 16:38:03,653 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 16:38:03,653 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 16:38:03,653 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 16:38:03,654 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:38:00" (3/4) ... [2018-12-09 16:38:03,657 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 16:38:03,662 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 16:38:03,662 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 16:38:03,670 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-09 16:38:03,671 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 16:38:03,743 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f1a290b8-d595-48dc-9434-1f5f870b0174/bin-2019/utaipan/witness.graphml [2018-12-09 16:38:03,743 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 16:38:03,744 INFO L168 Benchmark]: Toolchain (without parser) took 4153.83 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 300.4 MB). Free memory was 953.5 MB in the beginning and 1.2 GB in the end (delta: -212.6 MB). Peak memory consumption was 87.8 MB. Max. memory is 11.5 GB. [2018-12-09 16:38:03,744 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:38:03,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.52 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 930.9 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-12-09 16:38:03,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 930.9 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-12-09 16:38:03,745 INFO L168 Benchmark]: Boogie Preprocessor took 27.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:38:03,745 INFO L168 Benchmark]: RCFGBuilder took 354.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 11.5 GB. [2018-12-09 16:38:03,745 INFO L168 Benchmark]: TraceAbstraction took 3408.40 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 174.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -107.0 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. [2018-12-09 16:38:03,746 INFO L168 Benchmark]: Witness Printer took 90.16 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2018-12-09 16:38:03,747 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 223.52 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 930.9 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 930.9 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 354.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3408.40 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 174.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -107.0 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. * Witness Printer took 90.16 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 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: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 100]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 890]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 252]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 31]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 168]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 214]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 112]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 926]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 140]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 914]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 152]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 180]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 878]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 202]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 264]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: main__t <= main__tagbuf_len && 0 <= main__t - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: main__t <= main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 853]: Loop Invariant Derived loop invariant: (main__t <= main__tagbuf_len && __VERIFIER_assert__cond == 1) && 1 <= main__t - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (main__t <= main__tagbuf_len && !(main__tagbuf_len == main__t)) && 1 <= main__t - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 125 locations, 16 error locations. SAFE Result, 3.3s OverallTime, 16 OverallIterations, 1 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 530 SDtfs, 3153 SDslu, 1131 SDs, 0 SdLazy, 3796 SolverSat, 713 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred 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: 0.0s AutomataMinimizationTime, 16 MinimizatonAttempts, 284 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 40 HoareAnnotationTreeSize, 9 FomulaSimplifications, 60910 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 396 NumberOfCodeBlocks, 396 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 380 ConstructedInterpolants, 0 QuantifiedInterpolants, 21650 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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...