java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/psyco/psyco_net_1_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 21:37:18,231 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 21:37:18,233 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 21:37:18,244 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 21:37:18,244 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 21:37:18,247 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 21:37:18,248 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 21:37:18,251 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 21:37:18,252 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 21:37:18,253 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 21:37:18,254 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 21:37:18,254 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 21:37:18,255 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 21:37:18,256 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 21:37:18,257 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 21:37:18,257 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 21:37:18,258 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 21:37:18,260 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 21:37:18,262 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 21:37:18,263 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 21:37:18,264 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 21:37:18,265 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 21:37:18,267 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 21:37:18,268 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 21:37:18,268 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 21:37:18,269 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 21:37:18,269 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 21:37:18,270 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 21:37:18,271 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 21:37:18,272 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 21:37:18,272 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 21:37:18,273 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 21:37:18,273 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 21:37:18,273 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 21:37:18,274 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 21:37:18,275 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 21:37:18,275 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 21:37:18,290 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 21:37:18,290 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 21:37:18,291 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 21:37:18,291 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 21:37:18,291 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 21:37:18,291 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 21:37:18,292 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 21:37:18,292 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 21:37:18,292 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 21:37:18,292 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 21:37:18,292 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 21:37:18,292 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 21:37:18,293 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 21:37:18,293 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 21:37:18,293 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 21:37:18,294 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 21:37:18,294 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 21:37:18,294 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 21:37:18,294 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 21:37:18,294 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 21:37:18,295 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 21:37:18,296 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 21:37:18,296 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 21:37:18,296 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 21:37:18,296 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 21:37:18,296 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 21:37:18,297 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 21:37:18,297 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 21:37:18,297 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 21:37:18,297 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 21:37:18,297 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 21:37:18,298 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 21:37:18,298 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 21:37:18,298 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 21:37:18,298 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 21:37:18,342 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 21:37:18,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 21:37:18,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 21:37:18,367 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 21:37:18,367 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 21:37:18,368 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_net_1_false-unreach-call_false-termination.c [2018-07-21 21:37:18,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/a0e982c80/2d5e32b6a72d48c789549bffd740c382/FLAG0ea72b776 [2018-07-21 21:37:19,686 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 21:37:19,688 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/psyco/psyco_net_1_false-unreach-call_false-termination.c [2018-07-21 21:37:19,870 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/a0e982c80/2d5e32b6a72d48c789549bffd740c382/FLAG0ea72b776 [2018-07-21 21:37:19,888 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/a0e982c80/2d5e32b6a72d48c789549bffd740c382 [2018-07-21 21:37:19,899 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 21:37:19,906 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 21:37:19,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 21:37:19,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 21:37:19,915 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 21:37:19,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:37:19" (1/1) ... [2018-07-21 21:37:19,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35cb76df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:37:19, skipping insertion in model container [2018-07-21 21:37:19,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:37:19" (1/1) ... [2018-07-21 21:37:20,845 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 21:37:22,720 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 21:37:22,747 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 21:37:23,858 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 21:37:24,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:37:24 WrapperNode [2018-07-21 21:37:24,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 21:37:24,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 21:37:24,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 21:37:24,378 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 21:37:24,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:37:24" (1/1) ... [2018-07-21 21:37:24,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:37:24" (1/1) ... [2018-07-21 21:37:24,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 21:37:24,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 21:37:24,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 21:37:24,570 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 21:37:24,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:37:24" (1/1) ... [2018-07-21 21:37:24,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:37:24" (1/1) ... [2018-07-21 21:37:24,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:37:24" (1/1) ... [2018-07-21 21:37:24,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:37:24" (1/1) ... [2018-07-21 21:37:25,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:37:24" (1/1) ... [2018-07-21 21:37:25,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:37:24" (1/1) ... [2018-07-21 21:37:25,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:37:24" (1/1) ... [2018-07-21 21:37:25,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 21:37:25,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 21:37:25,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 21:37:25,581 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 21:37:25,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:37:24" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-07-21 21:37:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 21:37:27,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 21:37:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 21:37:27,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 21:37:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 21:37:27,227 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 21:37:45,020 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 21:37:45,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:37:45 BoogieIcfgContainer [2018-07-21 21:37:45,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 21:37:45,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 21:37:45,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 21:37:45,027 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 21:37:45,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:37:19" (1/3) ... [2018-07-21 21:37:45,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695c2ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:37:45, skipping insertion in model container [2018-07-21 21:37:45,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:37:24" (2/3) ... [2018-07-21 21:37:45,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695c2ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:37:45, skipping insertion in model container [2018-07-21 21:37:45,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:37:45" (3/3) ... [2018-07-21 21:37:45,030 INFO L112 eAbstractionObserver]: Analyzing ICFG psyco_net_1_false-unreach-call_false-termination.c [2018-07-21 21:37:45,040 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 21:37:45,052 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 21:37:45,136 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 21:37:45,136 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 21:37:45,136 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 21:37:45,137 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 21:37:45,137 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 21:37:45,137 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 21:37:45,137 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 21:37:45,137 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 21:37:45,137 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 21:37:45,288 INFO L276 IsEmpty]: Start isEmpty. Operand 9216 states. [2018-07-21 21:37:45,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-21 21:37:45,298 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:37:45,299 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:37:45,300 INFO L414 AbstractCegarLoop]: === Iteration 1 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:37:45,305 INFO L82 PathProgramCache]: Analyzing trace with hash -178125889, now seen corresponding path program 1 times [2018-07-21 21:37:45,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:37:45,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:37:45,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:37:45,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:37:45,363 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:37:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:37:45,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:37:45,622 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:37:45,623 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-21 21:37:45,623 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:37:45,626 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-21 21:37:45,640 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-21 21:37:45,641 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-21 21:37:45,644 INFO L87 Difference]: Start difference. First operand 9216 states. Second operand 2 states. [2018-07-21 21:37:46,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:37:46,252 INFO L93 Difference]: Finished difference Result 17704 states and 35386 transitions. [2018-07-21 21:37:46,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-21 21:37:46,254 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-07-21 21:37:46,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:37:46,333 INFO L225 Difference]: With dead ends: 17704 [2018-07-21 21:37:46,333 INFO L226 Difference]: Without dead ends: 8284 [2018-07-21 21:37:46,369 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-21 21:37:46,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8284 states. [2018-07-21 21:37:46,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8284 to 8284. [2018-07-21 21:37:46,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8284 states. [2018-07-21 21:37:46,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8284 states to 8284 states and 13001 transitions. [2018-07-21 21:37:46,689 INFO L78 Accepts]: Start accepts. Automaton has 8284 states and 13001 transitions. Word has length 13 [2018-07-21 21:37:46,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:37:46,690 INFO L471 AbstractCegarLoop]: Abstraction has 8284 states and 13001 transitions. [2018-07-21 21:37:46,690 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-21 21:37:46,690 INFO L276 IsEmpty]: Start isEmpty. Operand 8284 states and 13001 transitions. [2018-07-21 21:37:46,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-21 21:37:46,691 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:37:46,691 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:37:46,692 INFO L414 AbstractCegarLoop]: === Iteration 2 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:37:46,693 INFO L82 PathProgramCache]: Analyzing trace with hash -695873763, now seen corresponding path program 1 times [2018-07-21 21:37:46,693 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:37:46,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:37:46,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:37:46,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:37:46,694 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:37:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:37:46,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:37:46,914 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:37:46,914 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:37:46,915 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:37:46,916 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:37:46,916 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:37:46,916 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:37:46,917 INFO L87 Difference]: Start difference. First operand 8284 states and 13001 transitions. Second operand 3 states. [2018-07-21 21:37:51,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:37:51,539 INFO L93 Difference]: Finished difference Result 16565 states and 26000 transitions. [2018-07-21 21:37:51,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:37:51,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-07-21 21:37:51,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:37:51,585 INFO L225 Difference]: With dead ends: 16565 [2018-07-21 21:37:51,586 INFO L226 Difference]: Without dead ends: 8287 [2018-07-21 21:37:51,610 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:37:51,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8287 states. [2018-07-21 21:37:51,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8287 to 8287. [2018-07-21 21:37:51,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8287 states. [2018-07-21 21:37:51,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8287 states to 8287 states and 13004 transitions. [2018-07-21 21:37:51,816 INFO L78 Accepts]: Start accepts. Automaton has 8287 states and 13004 transitions. Word has length 14 [2018-07-21 21:37:51,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:37:51,816 INFO L471 AbstractCegarLoop]: Abstraction has 8287 states and 13004 transitions. [2018-07-21 21:37:51,816 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:37:51,816 INFO L276 IsEmpty]: Start isEmpty. Operand 8287 states and 13004 transitions. [2018-07-21 21:37:51,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-21 21:37:51,818 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:37:51,818 INFO L358 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:37:51,818 INFO L414 AbstractCegarLoop]: === Iteration 3 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:37:51,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1850457314, now seen corresponding path program 1 times [2018-07-21 21:37:51,818 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:37:51,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:37:51,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:37:51,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:37:51,820 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:37:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:37:51,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:37:51,971 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:37:51,971 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:37:51,971 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:37:51,972 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:37:51,972 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:37:51,972 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:37:51,972 INFO L87 Difference]: Start difference. First operand 8287 states and 13004 transitions. Second operand 3 states. [2018-07-21 21:37:53,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:37:53,879 INFO L93 Difference]: Finished difference Result 16460 states and 25849 transitions. [2018-07-21 21:37:53,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:37:53,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-07-21 21:37:53,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:37:53,936 INFO L225 Difference]: With dead ends: 16460 [2018-07-21 21:37:53,937 INFO L226 Difference]: Without dead ends: 8180 [2018-07-21 21:37:53,960 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:37:53,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8180 states. [2018-07-21 21:37:54,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8180 to 8180. [2018-07-21 21:37:54,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8180 states. [2018-07-21 21:37:54,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8180 states to 8180 states and 12850 transitions. [2018-07-21 21:37:54,154 INFO L78 Accepts]: Start accepts. Automaton has 8180 states and 12850 transitions. Word has length 19 [2018-07-21 21:37:54,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:37:54,154 INFO L471 AbstractCegarLoop]: Abstraction has 8180 states and 12850 transitions. [2018-07-21 21:37:54,154 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:37:54,154 INFO L276 IsEmpty]: Start isEmpty. Operand 8180 states and 12850 transitions. [2018-07-21 21:37:54,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-07-21 21:37:54,158 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:37:54,158 INFO L358 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:37:54,158 INFO L414 AbstractCegarLoop]: === Iteration 4 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:37:54,158 INFO L82 PathProgramCache]: Analyzing trace with hash -913299057, now seen corresponding path program 1 times [2018-07-21 21:37:54,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:37:54,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:37:54,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:37:54,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:37:54,160 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:37:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:37:54,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:37:54,284 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:37:54,284 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:37:54,285 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:37:54,285 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:37:54,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:37:54,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:37:54,286 INFO L87 Difference]: Start difference. First operand 8180 states and 12850 transitions. Second operand 3 states. [2018-07-21 21:37:57,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:37:57,948 INFO L93 Difference]: Finished difference Result 16268 states and 25567 transitions. [2018-07-21 21:37:57,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:37:57,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-07-21 21:37:57,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:37:57,970 INFO L225 Difference]: With dead ends: 16268 [2018-07-21 21:37:57,970 INFO L226 Difference]: Without dead ends: 8060 [2018-07-21 21:37:57,982 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:37:57,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8060 states. [2018-07-21 21:37:58,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8060 to 8060. [2018-07-21 21:37:58,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8060 states. [2018-07-21 21:37:58,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8060 states to 8060 states and 12230 transitions. [2018-07-21 21:37:58,141 INFO L78 Accepts]: Start accepts. Automaton has 8060 states and 12230 transitions. Word has length 23 [2018-07-21 21:37:58,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:37:58,141 INFO L471 AbstractCegarLoop]: Abstraction has 8060 states and 12230 transitions. [2018-07-21 21:37:58,141 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:37:58,141 INFO L276 IsEmpty]: Start isEmpty. Operand 8060 states and 12230 transitions. [2018-07-21 21:37:58,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-07-21 21:37:58,144 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:37:58,144 INFO L358 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:37:58,144 INFO L414 AbstractCegarLoop]: === Iteration 5 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:37:58,144 INFO L82 PathProgramCache]: Analyzing trace with hash -2067380717, now seen corresponding path program 1 times [2018-07-21 21:37:58,144 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:37:58,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:37:58,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:37:58,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:37:58,146 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:37:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:37:58,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:37:58,239 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:37:58,239 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:37:58,239 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:37:58,239 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:37:58,239 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:37:58,240 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:37:58,240 INFO L87 Difference]: Start difference. First operand 8060 states and 12230 transitions. Second operand 3 states. [2018-07-21 21:37:59,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:37:59,489 INFO L93 Difference]: Finished difference Result 16114 states and 24453 transitions. [2018-07-21 21:37:59,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:37:59,489 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-07-21 21:37:59,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:37:59,510 INFO L225 Difference]: With dead ends: 16114 [2018-07-21 21:37:59,510 INFO L226 Difference]: Without dead ends: 8066 [2018-07-21 21:37:59,523 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:37:59,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8066 states. [2018-07-21 21:37:59,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8066 to 8064. [2018-07-21 21:37:59,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8064 states. [2018-07-21 21:37:59,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8064 states to 8064 states and 12234 transitions. [2018-07-21 21:37:59,662 INFO L78 Accepts]: Start accepts. Automaton has 8064 states and 12234 transitions. Word has length 26 [2018-07-21 21:37:59,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:37:59,662 INFO L471 AbstractCegarLoop]: Abstraction has 8064 states and 12234 transitions. [2018-07-21 21:37:59,662 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:37:59,662 INFO L276 IsEmpty]: Start isEmpty. Operand 8064 states and 12234 transitions. [2018-07-21 21:37:59,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-07-21 21:37:59,665 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:37:59,665 INFO L358 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:37:59,665 INFO L414 AbstractCegarLoop]: === Iteration 6 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:37:59,666 INFO L82 PathProgramCache]: Analyzing trace with hash -2018574225, now seen corresponding path program 1 times [2018-07-21 21:37:59,666 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:37:59,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:37:59,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:37:59,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:37:59,667 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:37:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:37:59,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:37:59,783 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:37:59,783 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:37:59,783 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:37:59,783 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:37:59,784 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:37:59,784 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:37:59,784 INFO L87 Difference]: Start difference. First operand 8064 states and 12234 transitions. Second operand 3 states. [2018-07-21 21:38:02,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:38:02,687 INFO L93 Difference]: Finished difference Result 24168 states and 36676 transitions. [2018-07-21 21:38:02,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:38:02,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-07-21 21:38:02,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:38:02,713 INFO L225 Difference]: With dead ends: 24168 [2018-07-21 21:38:02,714 INFO L226 Difference]: Without dead ends: 16068 [2018-07-21 21:38:02,725 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:02,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16068 states. [2018-07-21 21:38:02,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16068 to 14810. [2018-07-21 21:38:02,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14810 states. [2018-07-21 21:38:03,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14810 states to 14810 states and 23046 transitions. [2018-07-21 21:38:03,003 INFO L78 Accepts]: Start accepts. Automaton has 14810 states and 23046 transitions. Word has length 27 [2018-07-21 21:38:03,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:38:03,003 INFO L471 AbstractCegarLoop]: Abstraction has 14810 states and 23046 transitions. [2018-07-21 21:38:03,004 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:38:03,005 INFO L276 IsEmpty]: Start isEmpty. Operand 14810 states and 23046 transitions. [2018-07-21 21:38:03,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-07-21 21:38:03,005 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:38:03,006 INFO L358 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:38:03,006 INFO L414 AbstractCegarLoop]: === Iteration 7 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:38:03,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1797395328, now seen corresponding path program 1 times [2018-07-21 21:38:03,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:38:03,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:03,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:38:03,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:03,007 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:38:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:38:03,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:38:03,177 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:38:03,178 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:38:03,178 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:38:03,178 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:38:03,178 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:38:03,178 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:03,179 INFO L87 Difference]: Start difference. First operand 14810 states and 23046 transitions. Second operand 3 states. [2018-07-21 21:38:07,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:38:07,224 INFO L93 Difference]: Finished difference Result 37340 states and 57908 transitions. [2018-07-21 21:38:07,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:38:07,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-07-21 21:38:07,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:38:07,269 INFO L225 Difference]: With dead ends: 37340 [2018-07-21 21:38:07,270 INFO L226 Difference]: Without dead ends: 22270 [2018-07-21 21:38:07,299 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:07,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22270 states. [2018-07-21 21:38:07,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22270 to 21076. [2018-07-21 21:38:07,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21076 states. [2018-07-21 21:38:07,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21076 states to 21076 states and 32688 transitions. [2018-07-21 21:38:07,875 INFO L78 Accepts]: Start accepts. Automaton has 21076 states and 32688 transitions. Word has length 29 [2018-07-21 21:38:07,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:38:07,876 INFO L471 AbstractCegarLoop]: Abstraction has 21076 states and 32688 transitions. [2018-07-21 21:38:07,877 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:38:07,877 INFO L276 IsEmpty]: Start isEmpty. Operand 21076 states and 32688 transitions. [2018-07-21 21:38:07,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-07-21 21:38:07,878 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:38:07,878 INFO L358 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:38:07,879 INFO L414 AbstractCegarLoop]: === Iteration 8 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:38:07,879 INFO L82 PathProgramCache]: Analyzing trace with hash -922430293, now seen corresponding path program 1 times [2018-07-21 21:38:07,879 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:38:07,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:07,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:38:07,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:07,880 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:38:07,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:38:08,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:38:08,039 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:38:08,078 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:38:08,078 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:38:08,078 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:38:08,078 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:38:08,079 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:08,079 INFO L87 Difference]: Start difference. First operand 21076 states and 32688 transitions. Second operand 3 states. [2018-07-21 21:38:13,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:38:13,186 INFO L93 Difference]: Finished difference Result 63174 states and 97978 transitions. [2018-07-21 21:38:13,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:38:13,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2018-07-21 21:38:13,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:38:13,289 INFO L225 Difference]: With dead ends: 63174 [2018-07-21 21:38:13,289 INFO L226 Difference]: Without dead ends: 42110 [2018-07-21 21:38:13,326 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:13,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42110 states. [2018-07-21 21:38:14,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42110 to 40084. [2018-07-21 21:38:14,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40084 states. [2018-07-21 21:38:14,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40084 states to 40084 states and 63062 transitions. [2018-07-21 21:38:14,372 INFO L78 Accepts]: Start accepts. Automaton has 40084 states and 63062 transitions. Word has length 34 [2018-07-21 21:38:14,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:38:14,373 INFO L471 AbstractCegarLoop]: Abstraction has 40084 states and 63062 transitions. [2018-07-21 21:38:14,373 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:38:14,373 INFO L276 IsEmpty]: Start isEmpty. Operand 40084 states and 63062 transitions. [2018-07-21 21:38:14,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-07-21 21:38:14,374 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:38:14,375 INFO L358 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:38:14,375 INFO L414 AbstractCegarLoop]: === Iteration 9 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:38:14,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1813209489, now seen corresponding path program 1 times [2018-07-21 21:38:14,376 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:38:14,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:14,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:38:14,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:14,377 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:38:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:38:14,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:38:14,503 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:38:14,504 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:38:14,504 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:38:14,504 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:38:14,504 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:38:14,504 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:14,505 INFO L87 Difference]: Start difference. First operand 40084 states and 63062 transitions. Second operand 3 states. [2018-07-21 21:38:17,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:38:17,941 INFO L93 Difference]: Finished difference Result 107946 states and 170048 transitions. [2018-07-21 21:38:17,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:38:17,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2018-07-21 21:38:17,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:38:18,077 INFO L225 Difference]: With dead ends: 107946 [2018-07-21 21:38:18,077 INFO L226 Difference]: Without dead ends: 67826 [2018-07-21 21:38:18,135 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:18,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67826 states. [2018-07-21 21:38:18,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67826 to 66152. [2018-07-21 21:38:18,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66152 states. [2018-07-21 21:38:18,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66152 states to 66152 states and 104782 transitions. [2018-07-21 21:38:18,823 INFO L78 Accepts]: Start accepts. Automaton has 66152 states and 104782 transitions. Word has length 43 [2018-07-21 21:38:18,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:38:18,823 INFO L471 AbstractCegarLoop]: Abstraction has 66152 states and 104782 transitions. [2018-07-21 21:38:18,823 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:38:18,823 INFO L276 IsEmpty]: Start isEmpty. Operand 66152 states and 104782 transitions. [2018-07-21 21:38:18,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-07-21 21:38:18,824 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:38:18,825 INFO L358 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:38:18,825 INFO L414 AbstractCegarLoop]: === Iteration 10 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:38:18,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1800711001, now seen corresponding path program 1 times [2018-07-21 21:38:18,825 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:38:18,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:18,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:38:18,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:18,826 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:38:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:38:18,955 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-21 21:38:18,955 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:38:18,955 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:38:18,955 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:38:18,956 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:38:18,956 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:38:18,956 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:18,956 INFO L87 Difference]: Start difference. First operand 66152 states and 104782 transitions. Second operand 3 states. [2018-07-21 21:38:20,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:38:20,540 INFO L93 Difference]: Finished difference Result 132344 states and 209622 transitions. [2018-07-21 21:38:20,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:38:20,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-07-21 21:38:20,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:38:20,616 INFO L225 Difference]: With dead ends: 132344 [2018-07-21 21:38:20,616 INFO L226 Difference]: Without dead ends: 66204 [2018-07-21 21:38:20,674 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:20,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66204 states. [2018-07-21 21:38:21,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66204 to 66202. [2018-07-21 21:38:21,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66202 states. [2018-07-21 21:38:21,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66202 states to 66202 states and 104832 transitions. [2018-07-21 21:38:21,275 INFO L78 Accepts]: Start accepts. Automaton has 66202 states and 104832 transitions. Word has length 47 [2018-07-21 21:38:21,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:38:21,276 INFO L471 AbstractCegarLoop]: Abstraction has 66202 states and 104832 transitions. [2018-07-21 21:38:21,276 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:38:21,276 INFO L276 IsEmpty]: Start isEmpty. Operand 66202 states and 104832 transitions. [2018-07-21 21:38:21,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-07-21 21:38:21,277 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:38:21,277 INFO L358 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:38:21,277 INFO L414 AbstractCegarLoop]: === Iteration 11 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:38:21,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1274321111, now seen corresponding path program 1 times [2018-07-21 21:38:21,283 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:38:21,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:21,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:38:21,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:21,284 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:38:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:38:21,448 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:38:21,448 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:38:21,448 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 21:38:21,448 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:38:21,449 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 21:38:21,449 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 21:38:21,449 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 21:38:21,449 INFO L87 Difference]: Start difference. First operand 66202 states and 104832 transitions. Second operand 4 states. [2018-07-21 21:38:26,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:38:26,410 INFO L93 Difference]: Finished difference Result 126789 states and 200689 transitions. [2018-07-21 21:38:26,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 21:38:26,411 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2018-07-21 21:38:26,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:38:26,485 INFO L225 Difference]: With dead ends: 126789 [2018-07-21 21:38:26,486 INFO L226 Difference]: Without dead ends: 66496 [2018-07-21 21:38:26,529 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 21:38:26,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66496 states. [2018-07-21 21:38:26,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66496 to 63922. [2018-07-21 21:38:26,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63922 states. [2018-07-21 21:38:27,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63922 states to 63922 states and 99852 transitions. [2018-07-21 21:38:27,070 INFO L78 Accepts]: Start accepts. Automaton has 63922 states and 99852 transitions. Word has length 56 [2018-07-21 21:38:27,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:38:27,070 INFO L471 AbstractCegarLoop]: Abstraction has 63922 states and 99852 transitions. [2018-07-21 21:38:27,070 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 21:38:27,070 INFO L276 IsEmpty]: Start isEmpty. Operand 63922 states and 99852 transitions. [2018-07-21 21:38:27,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-07-21 21:38:27,071 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:38:27,071 INFO L358 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:38:27,072 INFO L414 AbstractCegarLoop]: === Iteration 12 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:38:27,072 INFO L82 PathProgramCache]: Analyzing trace with hash -873438985, now seen corresponding path program 1 times [2018-07-21 21:38:27,072 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:38:27,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:27,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:38:27,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:27,073 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:38:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:38:27,225 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-21 21:38:27,225 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:38:27,225 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:38:27,225 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:38:27,226 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:38:27,226 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:38:27,226 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:27,226 INFO L87 Difference]: Start difference. First operand 63922 states and 99852 transitions. Second operand 3 states. [2018-07-21 21:38:28,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:38:28,924 INFO L93 Difference]: Finished difference Result 127894 states and 199782 transitions. [2018-07-21 21:38:28,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:38:28,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2018-07-21 21:38:28,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:38:28,996 INFO L225 Difference]: With dead ends: 127894 [2018-07-21 21:38:28,996 INFO L226 Difference]: Without dead ends: 63984 [2018-07-21 21:38:29,052 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:29,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63984 states. [2018-07-21 21:38:29,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63984 to 63982. [2018-07-21 21:38:29,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63982 states. [2018-07-21 21:38:30,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63982 states to 63982 states and 99912 transitions. [2018-07-21 21:38:30,092 INFO L78 Accepts]: Start accepts. Automaton has 63982 states and 99912 transitions. Word has length 57 [2018-07-21 21:38:30,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:38:30,092 INFO L471 AbstractCegarLoop]: Abstraction has 63982 states and 99912 transitions. [2018-07-21 21:38:30,092 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:38:30,092 INFO L276 IsEmpty]: Start isEmpty. Operand 63982 states and 99912 transitions. [2018-07-21 21:38:30,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-07-21 21:38:30,093 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:38:30,093 INFO L358 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:38:30,094 INFO L414 AbstractCegarLoop]: === Iteration 13 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:38:30,094 INFO L82 PathProgramCache]: Analyzing trace with hash -781795417, now seen corresponding path program 1 times [2018-07-21 21:38:30,094 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:38:30,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:30,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:38:30,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:30,095 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:38:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:38:30,353 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-21 21:38:30,353 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:38:30,354 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 21:38:30,354 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:38:30,354 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 21:38:30,354 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 21:38:30,354 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 21:38:30,356 INFO L87 Difference]: Start difference. First operand 63982 states and 99912 transitions. Second operand 4 states. [2018-07-21 21:38:34,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:38:34,288 INFO L93 Difference]: Finished difference Result 116802 states and 181842 transitions. [2018-07-21 21:38:34,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:38:34,288 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2018-07-21 21:38:34,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:38:34,363 INFO L225 Difference]: With dead ends: 116802 [2018-07-21 21:38:34,363 INFO L226 Difference]: Without dead ends: 64992 [2018-07-21 21:38:34,412 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 21:38:34,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64992 states. [2018-07-21 21:38:38,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64992 to 63726. [2018-07-21 21:38:38,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63726 states. [2018-07-21 21:38:38,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63726 states to 63726 states and 98888 transitions. [2018-07-21 21:38:38,638 INFO L78 Accepts]: Start accepts. Automaton has 63726 states and 98888 transitions. Word has length 62 [2018-07-21 21:38:38,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:38:38,639 INFO L471 AbstractCegarLoop]: Abstraction has 63726 states and 98888 transitions. [2018-07-21 21:38:38,639 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 21:38:38,639 INFO L276 IsEmpty]: Start isEmpty. Operand 63726 states and 98888 transitions. [2018-07-21 21:38:38,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-07-21 21:38:38,640 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:38:38,640 INFO L358 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:38:38,640 INFO L414 AbstractCegarLoop]: === Iteration 14 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:38:38,640 INFO L82 PathProgramCache]: Analyzing trace with hash 344861948, now seen corresponding path program 1 times [2018-07-21 21:38:38,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:38:38,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:38,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:38:38,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:38,641 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:38:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:38:38,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:38:38,836 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:38:38,836 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:38:38,836 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:38:38,836 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:38:38,836 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:38:38,837 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:38,839 INFO L87 Difference]: Start difference. First operand 63726 states and 98888 transitions. Second operand 3 states. [2018-07-21 21:38:42,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:38:42,535 INFO L93 Difference]: Finished difference Result 129854 states and 200368 transitions. [2018-07-21 21:38:42,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:38:42,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2018-07-21 21:38:42,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:38:42,613 INFO L225 Difference]: With dead ends: 129854 [2018-07-21 21:38:42,613 INFO L226 Difference]: Without dead ends: 66100 [2018-07-21 21:38:42,670 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:42,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66100 states. [2018-07-21 21:38:43,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66100 to 63406. [2018-07-21 21:38:43,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63406 states. [2018-07-21 21:38:43,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63406 states to 63406 states and 98168 transitions. [2018-07-21 21:38:43,927 INFO L78 Accepts]: Start accepts. Automaton has 63406 states and 98168 transitions. Word has length 68 [2018-07-21 21:38:43,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:38:43,927 INFO L471 AbstractCegarLoop]: Abstraction has 63406 states and 98168 transitions. [2018-07-21 21:38:43,927 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:38:43,927 INFO L276 IsEmpty]: Start isEmpty. Operand 63406 states and 98168 transitions. [2018-07-21 21:38:43,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-07-21 21:38:43,928 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:38:43,929 INFO L358 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:38:43,929 INFO L414 AbstractCegarLoop]: === Iteration 15 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:38:43,929 INFO L82 PathProgramCache]: Analyzing trace with hash -2088965043, now seen corresponding path program 1 times [2018-07-21 21:38:43,929 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:38:43,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:43,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:38:43,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:43,933 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:38:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:38:44,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:38:44,134 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:38:44,134 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:38:44,134 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:38:44,134 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:38:44,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:38:44,134 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:44,134 INFO L87 Difference]: Start difference. First operand 63406 states and 98168 transitions. Second operand 3 states. [2018-07-21 21:38:48,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:38:48,494 INFO L93 Difference]: Finished difference Result 91362 states and 140322 transitions. [2018-07-21 21:38:48,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:38:48,495 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2018-07-21 21:38:48,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:38:48,558 INFO L225 Difference]: With dead ends: 91362 [2018-07-21 21:38:48,558 INFO L226 Difference]: Without dead ends: 64712 [2018-07-21 21:38:48,581 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:48,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64712 states. [2018-07-21 21:38:49,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64712 to 63414. [2018-07-21 21:38:49,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63414 states. [2018-07-21 21:38:49,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63414 states to 63414 states and 98096 transitions. [2018-07-21 21:38:49,123 INFO L78 Accepts]: Start accepts. Automaton has 63414 states and 98096 transitions. Word has length 78 [2018-07-21 21:38:49,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:38:49,124 INFO L471 AbstractCegarLoop]: Abstraction has 63414 states and 98096 transitions. [2018-07-21 21:38:49,124 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:38:49,124 INFO L276 IsEmpty]: Start isEmpty. Operand 63414 states and 98096 transitions. [2018-07-21 21:38:49,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-07-21 21:38:49,125 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:38:49,125 INFO L358 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:38:49,125 INFO L414 AbstractCegarLoop]: === Iteration 16 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:38:49,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1526478923, now seen corresponding path program 1 times [2018-07-21 21:38:49,125 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:38:49,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:49,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:38:49,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:49,126 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:38:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:38:49,262 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-21 21:38:49,263 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:38:49,264 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:38:49,264 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:38:49,264 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:38:49,264 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:38:49,264 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:49,265 INFO L87 Difference]: Start difference. First operand 63414 states and 98096 transitions. Second operand 3 states. [2018-07-21 21:38:50,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:38:50,700 INFO L93 Difference]: Finished difference Result 121049 states and 187242 transitions. [2018-07-21 21:38:50,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:38:50,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2018-07-21 21:38:50,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:38:50,767 INFO L225 Difference]: With dead ends: 121049 [2018-07-21 21:38:50,767 INFO L226 Difference]: Without dead ends: 57647 [2018-07-21 21:38:50,823 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:50,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57647 states. [2018-07-21 21:38:51,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57647 to 57645. [2018-07-21 21:38:51,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57645 states. [2018-07-21 21:38:51,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57645 states to 57645 states and 89118 transitions. [2018-07-21 21:38:51,834 INFO L78 Accepts]: Start accepts. Automaton has 57645 states and 89118 transitions. Word has length 85 [2018-07-21 21:38:51,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:38:51,834 INFO L471 AbstractCegarLoop]: Abstraction has 57645 states and 89118 transitions. [2018-07-21 21:38:51,834 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:38:51,834 INFO L276 IsEmpty]: Start isEmpty. Operand 57645 states and 89118 transitions. [2018-07-21 21:38:51,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-07-21 21:38:51,835 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:38:51,836 INFO L358 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:38:51,836 INFO L414 AbstractCegarLoop]: === Iteration 17 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:38:51,836 INFO L82 PathProgramCache]: Analyzing trace with hash -836452376, now seen corresponding path program 1 times [2018-07-21 21:38:51,836 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:38:51,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:51,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:38:51,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:51,837 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:38:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:38:51,977 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-21 21:38:51,977 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:38:51,977 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:38:51,977 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:38:51,978 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:38:51,978 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:38:51,978 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:51,978 INFO L87 Difference]: Start difference. First operand 57645 states and 89118 transitions. Second operand 3 states. [2018-07-21 21:38:53,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:38:53,548 INFO L93 Difference]: Finished difference Result 114970 states and 177752 transitions. [2018-07-21 21:38:53,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:38:53,549 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2018-07-21 21:38:53,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:38:53,613 INFO L225 Difference]: With dead ends: 114970 [2018-07-21 21:38:53,613 INFO L226 Difference]: Without dead ends: 57727 [2018-07-21 21:38:53,663 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:38:53,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57727 states. [2018-07-21 21:38:54,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57727 to 57725. [2018-07-21 21:38:54,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57725 states. [2018-07-21 21:38:54,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57725 states to 57725 states and 89198 transitions. [2018-07-21 21:38:54,178 INFO L78 Accepts]: Start accepts. Automaton has 57725 states and 89198 transitions. Word has length 88 [2018-07-21 21:38:54,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:38:54,179 INFO L471 AbstractCegarLoop]: Abstraction has 57725 states and 89198 transitions. [2018-07-21 21:38:54,179 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:38:54,179 INFO L276 IsEmpty]: Start isEmpty. Operand 57725 states and 89198 transitions. [2018-07-21 21:38:54,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-07-21 21:38:54,180 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:38:54,180 INFO L358 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:38:54,180 INFO L414 AbstractCegarLoop]: === Iteration 18 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:38:54,180 INFO L82 PathProgramCache]: Analyzing trace with hash -435648167, now seen corresponding path program 1 times [2018-07-21 21:38:54,180 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:38:54,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:54,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:38:54,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:38:54,181 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:38:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:38:54,588 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-21 21:38:54,615 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:38:54,615 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:38:54,615 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 21:38:54,615 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:38:54,616 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 21:38:54,616 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 21:38:54,616 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 21:38:54,616 INFO L87 Difference]: Start difference. First operand 57725 states and 89198 transitions. Second operand 4 states. [2018-07-21 21:38:59,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:38:59,601 INFO L93 Difference]: Finished difference Result 82683 states and 126801 transitions. [2018-07-21 21:38:59,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 21:38:59,601 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2018-07-21 21:38:59,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:38:59,641 INFO L225 Difference]: With dead ends: 82683 [2018-07-21 21:38:59,641 INFO L226 Difference]: Without dead ends: 36254 [2018-07-21 21:38:59,676 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 21:38:59,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36254 states. [2018-07-21 21:39:00,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36254 to 35103. [2018-07-21 21:39:00,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35103 states. [2018-07-21 21:39:00,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35103 states to 35103 states and 53387 transitions. [2018-07-21 21:39:00,225 INFO L78 Accepts]: Start accepts. Automaton has 35103 states and 53387 transitions. Word has length 92 [2018-07-21 21:39:00,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:39:00,225 INFO L471 AbstractCegarLoop]: Abstraction has 35103 states and 53387 transitions. [2018-07-21 21:39:00,225 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 21:39:00,225 INFO L276 IsEmpty]: Start isEmpty. Operand 35103 states and 53387 transitions. [2018-07-21 21:39:00,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-07-21 21:39:00,226 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:39:00,226 INFO L358 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:39:00,227 INFO L414 AbstractCegarLoop]: === Iteration 19 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:39:00,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1691319959, now seen corresponding path program 1 times [2018-07-21 21:39:00,227 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:39:00,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:00,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:39:00,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:00,228 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:39:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:39:00,446 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:39:00,447 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:39:00,447 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 21:39:00,447 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:39:00,447 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 21:39:00,448 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 21:39:00,450 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 21:39:00,450 INFO L87 Difference]: Start difference. First operand 35103 states and 53387 transitions. Second operand 4 states. [2018-07-21 21:39:04,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:39:04,851 INFO L93 Difference]: Finished difference Result 48621 states and 72992 transitions. [2018-07-21 21:39:04,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 21:39:04,886 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2018-07-21 21:39:04,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:39:04,908 INFO L225 Difference]: With dead ends: 48621 [2018-07-21 21:39:04,908 INFO L226 Difference]: Without dead ends: 24954 [2018-07-21 21:39:04,924 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 21:39:04,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24954 states. [2018-07-21 21:39:05,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24954 to 23803. [2018-07-21 21:39:05,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23803 states. [2018-07-21 21:39:05,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23803 states to 23803 states and 35865 transitions. [2018-07-21 21:39:05,114 INFO L78 Accepts]: Start accepts. Automaton has 23803 states and 35865 transitions. Word has length 94 [2018-07-21 21:39:05,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:39:05,114 INFO L471 AbstractCegarLoop]: Abstraction has 23803 states and 35865 transitions. [2018-07-21 21:39:05,114 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 21:39:05,114 INFO L276 IsEmpty]: Start isEmpty. Operand 23803 states and 35865 transitions. [2018-07-21 21:39:05,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-07-21 21:39:05,115 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:39:05,116 INFO L358 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:39:05,116 INFO L414 AbstractCegarLoop]: === Iteration 20 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:39:05,116 INFO L82 PathProgramCache]: Analyzing trace with hash -722433105, now seen corresponding path program 1 times [2018-07-21 21:39:05,116 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:39:05,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:05,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:39:05,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:05,117 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:39:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:39:05,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 21:39:05,213 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:39:05,214 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:39:05,214 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:39:05,214 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:39:05,214 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:39:05,214 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:05,214 INFO L87 Difference]: Start difference. First operand 23803 states and 35865 transitions. Second operand 3 states. [2018-07-21 21:39:06,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:39:06,089 INFO L93 Difference]: Finished difference Result 24578 states and 36978 transitions. [2018-07-21 21:39:06,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:39:06,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2018-07-21 21:39:06,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:39:06,111 INFO L225 Difference]: With dead ends: 24578 [2018-07-21 21:39:06,111 INFO L226 Difference]: Without dead ends: 24576 [2018-07-21 21:39:06,120 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:06,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24576 states. [2018-07-21 21:39:06,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24576 to 24574. [2018-07-21 21:39:06,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24574 states. [2018-07-21 21:39:06,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24574 states to 24574 states and 36968 transitions. [2018-07-21 21:39:06,308 INFO L78 Accepts]: Start accepts. Automaton has 24574 states and 36968 transitions. Word has length 102 [2018-07-21 21:39:06,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:39:06,309 INFO L471 AbstractCegarLoop]: Abstraction has 24574 states and 36968 transitions. [2018-07-21 21:39:06,309 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:39:06,309 INFO L276 IsEmpty]: Start isEmpty. Operand 24574 states and 36968 transitions. [2018-07-21 21:39:06,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-07-21 21:39:06,311 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:39:06,311 INFO L358 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:39:06,311 INFO L414 AbstractCegarLoop]: === Iteration 21 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:39:06,312 INFO L82 PathProgramCache]: Analyzing trace with hash 796189882, now seen corresponding path program 1 times [2018-07-21 21:39:06,312 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:39:06,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:06,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:39:06,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:06,313 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:39:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:39:06,443 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-21 21:39:06,444 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:39:06,444 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:39:06,444 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:39:06,444 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:39:06,445 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:39:06,446 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:06,446 INFO L87 Difference]: Start difference. First operand 24574 states and 36968 transitions. Second operand 3 states. [2018-07-21 21:39:07,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:39:07,781 INFO L93 Difference]: Finished difference Result 42970 states and 64452 transitions. [2018-07-21 21:39:07,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:39:07,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2018-07-21 21:39:07,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:39:07,799 INFO L225 Difference]: With dead ends: 42970 [2018-07-21 21:39:07,799 INFO L226 Difference]: Without dead ends: 19569 [2018-07-21 21:39:07,813 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:07,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19569 states. [2018-07-21 21:39:07,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19569 to 19567. [2018-07-21 21:39:07,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19567 states. [2018-07-21 21:39:07,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19567 states to 19567 states and 29153 transitions. [2018-07-21 21:39:07,962 INFO L78 Accepts]: Start accepts. Automaton has 19567 states and 29153 transitions. Word has length 118 [2018-07-21 21:39:07,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:39:07,962 INFO L471 AbstractCegarLoop]: Abstraction has 19567 states and 29153 transitions. [2018-07-21 21:39:07,962 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:39:07,962 INFO L276 IsEmpty]: Start isEmpty. Operand 19567 states and 29153 transitions. [2018-07-21 21:39:07,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-07-21 21:39:07,965 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:39:07,965 INFO L358 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:39:07,965 INFO L414 AbstractCegarLoop]: === Iteration 22 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:39:07,965 INFO L82 PathProgramCache]: Analyzing trace with hash -90640293, now seen corresponding path program 1 times [2018-07-21 21:39:07,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:39:07,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:07,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:39:07,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:07,966 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:39:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:39:08,116 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-07-21 21:39:08,116 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:39:08,116 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:39:08,116 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:39:08,117 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:39:08,117 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:39:08,117 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:08,117 INFO L87 Difference]: Start difference. First operand 19567 states and 29153 transitions. Second operand 3 states. [2018-07-21 21:39:08,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:39:08,836 INFO L93 Difference]: Finished difference Result 36152 states and 53948 transitions. [2018-07-21 21:39:08,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:39:08,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2018-07-21 21:39:08,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:39:08,860 INFO L225 Difference]: With dead ends: 36152 [2018-07-21 21:39:08,860 INFO L226 Difference]: Without dead ends: 17948 [2018-07-21 21:39:08,875 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:08,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17948 states. [2018-07-21 21:39:09,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17948 to 17946. [2018-07-21 21:39:09,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17946 states. [2018-07-21 21:39:09,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17946 states to 17946 states and 26737 transitions. [2018-07-21 21:39:09,022 INFO L78 Accepts]: Start accepts. Automaton has 17946 states and 26737 transitions. Word has length 140 [2018-07-21 21:39:09,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:39:09,023 INFO L471 AbstractCegarLoop]: Abstraction has 17946 states and 26737 transitions. [2018-07-21 21:39:09,023 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:39:09,023 INFO L276 IsEmpty]: Start isEmpty. Operand 17946 states and 26737 transitions. [2018-07-21 21:39:09,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-07-21 21:39:09,026 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:39:09,026 INFO L358 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:39:09,026 INFO L414 AbstractCegarLoop]: === Iteration 23 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:39:09,027 INFO L82 PathProgramCache]: Analyzing trace with hash -888095592, now seen corresponding path program 1 times [2018-07-21 21:39:09,027 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:39:09,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:09,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:39:09,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:09,028 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:39:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:39:09,116 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-07-21 21:39:09,117 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:39:09,117 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:39:09,117 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:39:09,117 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:39:09,117 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:39:09,118 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:09,118 INFO L87 Difference]: Start difference. First operand 17946 states and 26737 transitions. Second operand 3 states. [2018-07-21 21:39:09,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:39:09,865 INFO L93 Difference]: Finished difference Result 29254 states and 43532 transitions. [2018-07-21 21:39:09,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:39:09,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2018-07-21 21:39:09,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:39:09,914 INFO L225 Difference]: With dead ends: 29254 [2018-07-21 21:39:09,914 INFO L226 Difference]: Without dead ends: 13062 [2018-07-21 21:39:09,927 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:09,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13062 states. [2018-07-21 21:39:10,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13062 to 13060. [2018-07-21 21:39:10,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13060 states. [2018-07-21 21:39:10,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13060 states to 13060 states and 19302 transitions. [2018-07-21 21:39:10,032 INFO L78 Accepts]: Start accepts. Automaton has 13060 states and 19302 transitions. Word has length 142 [2018-07-21 21:39:10,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:39:10,032 INFO L471 AbstractCegarLoop]: Abstraction has 13060 states and 19302 transitions. [2018-07-21 21:39:10,032 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:39:10,032 INFO L276 IsEmpty]: Start isEmpty. Operand 13060 states and 19302 transitions. [2018-07-21 21:39:10,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-07-21 21:39:10,035 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:39:10,035 INFO L358 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:39:10,035 INFO L414 AbstractCegarLoop]: === Iteration 24 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:39:10,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1774201195, now seen corresponding path program 1 times [2018-07-21 21:39:10,035 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:39:10,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:10,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:39:10,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:10,036 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:39:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:39:10,179 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-07-21 21:39:10,179 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:39:10,179 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:39:10,179 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:39:10,179 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:39:10,180 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:39:10,180 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:10,180 INFO L87 Difference]: Start difference. First operand 13060 states and 19302 transitions. Second operand 3 states. [2018-07-21 21:39:10,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:39:10,957 INFO L93 Difference]: Finished difference Result 23530 states and 34857 transitions. [2018-07-21 21:39:10,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:39:10,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2018-07-21 21:39:10,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:39:10,967 INFO L225 Difference]: With dead ends: 23530 [2018-07-21 21:39:10,967 INFO L226 Difference]: Without dead ends: 12419 [2018-07-21 21:39:10,975 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:10,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12419 states. [2018-07-21 21:39:11,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12419 to 12417. [2018-07-21 21:39:11,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12417 states. [2018-07-21 21:39:11,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12417 states to 12417 states and 18336 transitions. [2018-07-21 21:39:11,066 INFO L78 Accepts]: Start accepts. Automaton has 12417 states and 18336 transitions. Word has length 148 [2018-07-21 21:39:11,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:39:11,066 INFO L471 AbstractCegarLoop]: Abstraction has 12417 states and 18336 transitions. [2018-07-21 21:39:11,066 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:39:11,066 INFO L276 IsEmpty]: Start isEmpty. Operand 12417 states and 18336 transitions. [2018-07-21 21:39:11,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-07-21 21:39:11,068 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:39:11,068 INFO L358 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:39:11,069 INFO L414 AbstractCegarLoop]: === Iteration 25 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:39:11,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1702931622, now seen corresponding path program 1 times [2018-07-21 21:39:11,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:39:11,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:11,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:39:11,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:11,070 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:39:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:39:11,205 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-07-21 21:39:11,206 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:39:11,206 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:39:11,206 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:39:11,206 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:39:11,207 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:39:11,207 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:11,207 INFO L87 Difference]: Start difference. First operand 12417 states and 18336 transitions. Second operand 3 states. [2018-07-21 21:39:11,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:39:11,896 INFO L93 Difference]: Finished difference Result 22917 states and 33915 transitions. [2018-07-21 21:39:11,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:39:11,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2018-07-21 21:39:11,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:39:11,907 INFO L225 Difference]: With dead ends: 22917 [2018-07-21 21:39:11,907 INFO L226 Difference]: Without dead ends: 12449 [2018-07-21 21:39:11,917 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:11,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12449 states. [2018-07-21 21:39:11,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12449 to 12447. [2018-07-21 21:39:11,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12447 states. [2018-07-21 21:39:12,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12447 states to 12447 states and 18366 transitions. [2018-07-21 21:39:12,012 INFO L78 Accepts]: Start accepts. Automaton has 12447 states and 18366 transitions. Word has length 152 [2018-07-21 21:39:12,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:39:12,013 INFO L471 AbstractCegarLoop]: Abstraction has 12447 states and 18366 transitions. [2018-07-21 21:39:12,013 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:39:12,013 INFO L276 IsEmpty]: Start isEmpty. Operand 12447 states and 18366 transitions. [2018-07-21 21:39:12,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-07-21 21:39:12,015 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:39:12,016 INFO L358 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:39:12,016 INFO L414 AbstractCegarLoop]: === Iteration 26 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:39:12,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1745923923, now seen corresponding path program 1 times [2018-07-21 21:39:12,016 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:39:12,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:12,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:39:12,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:12,017 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:39:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:39:12,179 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-07-21 21:39:12,179 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:39:12,180 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:39:12,180 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:39:12,180 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:39:12,180 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:39:12,181 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:12,181 INFO L87 Difference]: Start difference. First operand 12447 states and 18366 transitions. Second operand 3 states. [2018-07-21 21:39:13,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:39:13,426 INFO L93 Difference]: Finished difference Result 20619 states and 30503 transitions. [2018-07-21 21:39:13,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:39:13,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2018-07-21 21:39:13,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:39:13,437 INFO L225 Difference]: With dead ends: 20619 [2018-07-21 21:39:13,437 INFO L226 Difference]: Without dead ends: 10121 [2018-07-21 21:39:13,447 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:13,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10121 states. [2018-07-21 21:39:13,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10121 to 10119. [2018-07-21 21:39:13,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10119 states. [2018-07-21 21:39:13,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10119 states to 10119 states and 14916 transitions. [2018-07-21 21:39:13,537 INFO L78 Accepts]: Start accepts. Automaton has 10119 states and 14916 transitions. Word has length 182 [2018-07-21 21:39:13,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:39:13,537 INFO L471 AbstractCegarLoop]: Abstraction has 10119 states and 14916 transitions. [2018-07-21 21:39:13,537 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:39:13,537 INFO L276 IsEmpty]: Start isEmpty. Operand 10119 states and 14916 transitions. [2018-07-21 21:39:13,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-07-21 21:39:13,540 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:39:13,540 INFO L358 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:39:13,540 INFO L414 AbstractCegarLoop]: === Iteration 27 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:39:13,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1841248048, now seen corresponding path program 1 times [2018-07-21 21:39:13,540 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:39:13,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:13,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:39:13,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:13,541 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:39:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 21:39:13,700 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-07-21 21:39:13,701 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 21:39:13,701 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 21:39:13,701 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 21:39:13,701 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 21:39:13,702 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 21:39:13,702 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:13,702 INFO L87 Difference]: Start difference. First operand 10119 states and 14916 transitions. Second operand 3 states. [2018-07-21 21:39:14,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 21:39:14,071 INFO L93 Difference]: Finished difference Result 10525 states and 15485 transitions. [2018-07-21 21:39:14,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 21:39:14,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2018-07-21 21:39:14,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 21:39:14,074 INFO L225 Difference]: With dead ends: 10525 [2018-07-21 21:39:14,074 INFO L226 Difference]: Without dead ends: 2361 [2018-07-21 21:39:14,080 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 21:39:14,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2018-07-21 21:39:14,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 2359. [2018-07-21 21:39:14,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2359 states. [2018-07-21 21:39:14,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 3363 transitions. [2018-07-21 21:39:14,099 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 3363 transitions. Word has length 187 [2018-07-21 21:39:14,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 21:39:14,099 INFO L471 AbstractCegarLoop]: Abstraction has 2359 states and 3363 transitions. [2018-07-21 21:39:14,099 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 21:39:14,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 3363 transitions. [2018-07-21 21:39:14,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-07-21 21:39:14,101 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 21:39:14,101 INFO L358 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 21:39:14,101 INFO L414 AbstractCegarLoop]: === Iteration 28 === [mainErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 21:39:14,102 INFO L82 PathProgramCache]: Analyzing trace with hash 421951123, now seen corresponding path program 1 times [2018-07-21 21:39:14,102 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 21:39:14,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:14,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 21:39:14,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 21:39:14,103 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 21:39:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-21 21:39:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-21 21:39:14,456 INFO L424 BasicCegarLoop]: Counterexample might be feasible [2018-07-21 21:39:14,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 09:39:14 BoogieIcfgContainer [2018-07-21 21:39:14,669 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 21:39:14,669 INFO L168 Benchmark]: Toolchain (without parser) took 114769.95 ms. Allocated memory was 310.4 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 199.2 MB in the beginning and 738.9 MB in the end (delta: -539.6 MB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. [2018-07-21 21:39:14,670 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 310.4 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 21:39:14,671 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4469.90 ms. Allocated memory was 310.4 MB in the beginning and 926.4 MB in the end (delta: 616.0 MB). Free memory was 199.2 MB in the beginning and 720.6 MB in the end (delta: -521.4 MB). Peak memory consumption was 456.9 MB. Max. memory is 5.3 GB. [2018-07-21 21:39:14,671 INFO L168 Benchmark]: Boogie Procedure Inliner took 191.26 ms. Allocated memory is still 926.4 MB. Free memory was 720.6 MB in the beginning and 706.2 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 5.3 GB. [2018-07-21 21:39:14,673 INFO L168 Benchmark]: Boogie Preprocessor took 1011.44 ms. Allocated memory is still 926.4 MB. Free memory was 706.2 MB in the beginning and 558.4 MB in the end (delta: 147.8 MB). Peak memory consumption was 147.8 MB. Max. memory is 5.3 GB. [2018-07-21 21:39:14,673 INFO L168 Benchmark]: RCFGBuilder took 19439.90 ms. Allocated memory was 926.4 MB in the beginning and 1.8 GB in the end (delta: 841.0 MB). Free memory was 558.4 MB in the beginning and 349.6 MB in the end (delta: 208.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 5.3 GB. [2018-07-21 21:39:14,674 INFO L168 Benchmark]: TraceAbstraction took 89646.72 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 740.8 MB). Free memory was 349.6 MB in the beginning and 738.9 MB in the end (delta: -389.2 MB). Peak memory consumption was 351.6 MB. Max. memory is 5.3 GB. [2018-07-21 21:39:14,677 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 310.4 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 4469.90 ms. Allocated memory was 310.4 MB in the beginning and 926.4 MB in the end (delta: 616.0 MB). Free memory was 199.2 MB in the beginning and 720.6 MB in the end (delta: -521.4 MB). Peak memory consumption was 456.9 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 191.26 ms. Allocated memory is still 926.4 MB. Free memory was 720.6 MB in the beginning and 706.2 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1011.44 ms. Allocated memory is still 926.4 MB. Free memory was 706.2 MB in the beginning and 558.4 MB in the end (delta: 147.8 MB). Peak memory consumption was 147.8 MB. Max. memory is 5.3 GB. * RCFGBuilder took 19439.90 ms. Allocated memory was 926.4 MB in the beginning and 1.8 GB in the end (delta: 841.0 MB). Free memory was 558.4 MB in the beginning and 349.6 MB in the end (delta: 208.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 5.3 GB. * TraceAbstraction took 89646.72 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 740.8 MB). Free memory was 349.6 MB in the beginning and 738.9 MB in the end (delta: -389.2 MB). Peak memory consumption was 351.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 49138]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L5] int m_getInetAddress = 1; [L6] int m_getOOBInline = 2; [L7] int m_getLocalPort = 3; [L8] int m_isInputShutdown = 4; [L9] int m_setTcpNoDelay = 5; [L10] int m_isConnected = 6; [L11] int m_getKeepAlive = 7; [L12] int m_getLocalAddress = 8; [L13] int m_bind = 9; [L14] int m_getChannel = 10; [L15] int m_getSoLinger = 11; [L16] int m_getImpl = 12; [L17] int m_getTcpNoDelay = 13; [L18] int m_getSoTimeout = 14; [L19] int m_isOutputShutdown = 15; [L20] int m_postAccept = 16; [L21] int m_close = 17; [L22] int m_setOOBInline = 18; [L23] int m_getLocalSocketAddress = 19; [L24] int m_getReceiveBufferSize = 20; [L25] int m_setReuseAddress = 21; [L26] int m_getTrafficClass = 22; [L27] int m_getReuseAddress = 23; [L28] int m_createImpl = 24; [L29] int m_setCreated = 25; [L30] int m_setKeepAlive = 26; [L31] int m_getInputStream = 27; [L32] int m_shutdownOutput = 28; [L33] int m_shutdownInput = 29; [L34] int m_setPerformancePreferences = 30; [L35] int m_getPort = 31; [L36] int m_sendUrgentData = 32; [L37] int m_isClosed = 33; [L38] int m_isBound = 34; [L39] int m_setBound = 35; [L40] int m_getSendBufferSize = 36; [L41] int m_getOutputStream = 37; [L42] int m_setConnected = 38; [L43] int m_Socket = 39; [L44] int m_getRemoteSocketAddress = 40; [L45] int m_setReceiveBufferSize_1 = 41; [L46] int m_setReceiveBufferSize_2 = 42; [L47] int m_connect2_1 = 43; [L48] int m_connect2_2 = 44; [L49] int m_setSoLinger_1 = 45; [L50] int m_setSoLinger_2 = 46; [L51] int m_connect1_1 = 47; [L52] int m_connect1_2 = 48; [L53] int m_setTrafficClass_1 = 49; [L54] int m_setTrafficClass_2 = 50; [L55] int m_setSoTimeout_1 = 51; [L56] int m_setSoTimeout_2 = 52; [L57] int m_setSendBufferSize_1 = 53; [L58] int m_setSendBufferSize_2 = 54; [L59] int m_setSocketImplFactory_1 = 55; [L60] int m_setSocketImplFactory_2 = 56; VAL [\old(m_bind)=18, \old(m_close)=20, \old(m_connect1_1)=28, \old(m_connect1_2)=24, \old(m_connect2_1)=11, \old(m_connect2_2)=2, \old(m_createImpl)=10, \old(m_getChannel)=4, \old(m_getImpl)=35, \old(m_getInetAddress)=8, \old(m_getInputStream)=52, \old(m_getKeepAlive)=51, \old(m_getLocalAddress)=9, \old(m_getLocalPort)=34, \old(m_getLocalSocketAddress)=19, \old(m_getOOBInline)=23, \old(m_getOutputStream)=49, \old(m_getPort)=43, \old(m_getReceiveBufferSize)=36, \old(m_getRemoteSocketAddress)=50, \old(m_getReuseAddress)=13, \old(m_getSendBufferSize)=54, \old(m_getSoLinger)=37, \old(m_getSoTimeout)=33, \old(m_getTcpNoDelay)=38, \old(m_getTrafficClass)=21, \old(m_isBound)=25, \old(m_isClosed)=26, \old(m_isConnected)=14, \old(m_isInputShutdown)=3, \old(m_isOutputShutdown)=17, \old(m_postAccept)=46, \old(m_sendUrgentData)=29, \old(m_setBound)=31, \old(m_setConnected)=48, \old(m_setCreated)=7, \old(m_setKeepAlive)=44, \old(m_setOOBInline)=57, \old(m_setPerformancePreferences)=16, \old(m_setReceiveBufferSize_1)=15, \old(m_setReceiveBufferSize_2)=6, \old(m_setReuseAddress)=55, \old(m_setSendBufferSize_1)=30, \old(m_setSendBufferSize_2)=5, \old(m_setSocketImplFactory_1)=40, \old(m_setSocketImplFactory_2)=45, \old(m_setSoLinger_1)=47, \old(m_setSoLinger_2)=32, \old(m_setSoTimeout_1)=39, \old(m_setSoTimeout_2)=53, \old(m_setTcpNoDelay)=27, \old(m_setTrafficClass_1)=41, \old(m_setTrafficClass_2)=56, \old(m_shutdownInput)=22, \old(m_shutdownOutput)=42, \old(m_Socket)=12, m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39] [L65] int q = 0; [L66] int method_id; [L69] int this_oldImpl = 0; [L70] int this_factory = 0; [L71] int this_shutOut = 0; [L72] int this_created = 0; [L73] int this_shutIn = 0; [L74] int this_closed = 0; [L75] int this_bound = 0; [L76] int this_impl = 1; [L77] int this_connected = 0; VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, q=0, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=0, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L80] COND TRUE 1 [L83] _Bool P1=__VERIFIER_nondet_int(); [L84] int P2=__VERIFIER_nondet_int(); [L85] _Bool P3=__VERIFIER_nondet_int(); [L86] _Bool P4=__VERIFIER_nondet_int(); [L87] _Bool P5=__VERIFIER_nondet_int(); [L88] _Bool P6=__VERIFIER_nondet_int(); [L89] int P7=__VERIFIER_nondet_int(); [L90] int P8=__VERIFIER_nondet_int(); [L91] int P9=__VERIFIER_nondet_int(); [L92] int P10=__VERIFIER_nondet_int(); [L93] int P11=__VERIFIER_nondet_int(); [L94] int P12=__VERIFIER_nondet_int(); [L95] int P13=__VERIFIER_nondet_int(); [L96] int P14=__VERIFIER_nondet_int(); [L97] int P15=__VERIFIER_nondet_int(); [L98] int P16=__VERIFIER_nondet_int(); [L99] _Bool P17=__VERIFIER_nondet_int(); [L100] int P18=__VERIFIER_nondet_int(); [L101] _Bool P19=__VERIFIER_nondet_int(); [L102] int P20=__VERIFIER_nondet_int(); [L103] int P21=__VERIFIER_nondet_int(); [L104] int P22=__VERIFIER_nondet_int(); [L105] int P23=__VERIFIER_nondet_int(); [L106] int P24=__VERIFIER_nondet_int(); [L107] int P25=__VERIFIER_nondet_int(); [L108] int P26=__VERIFIER_nondet_int(); [L109] int P27=__VERIFIER_nondet_int(); [L110] int P28=__VERIFIER_nondet_int(); [L111] int P29=__VERIFIER_nondet_int(); [L112] int P30=__VERIFIER_nondet_int(); [L116] COND TRUE q == 0 [L117] COND TRUE __VERIFIER_nondet_int() [L119] COND TRUE 1 [L121] method_id = 39 VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=39, P1=0, P10=0, P11=0, P12=0, P13=0, P14=0, P15=0, P16=0, P17=1, P18=0, P19=1, P2=0, P20=0, P21=0, P22=0, P23=0, P24=0, P25=0, P26=0, P27=0, P28=0, P29=0, P3=1, P30=0, P4=0, P5=1, P6=1, P7=0, P8=0, P9=0, q=0, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=0, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L123] COND FALSE !(0) [L127] q = 2 [L129] this_factory=0 [L129] this_shutIn=0 [L129] this_connected=0 [L129] this_closed=0 [L129] this_shutOut=0 [L129] this_created=0 [L129] this_impl=1 [L129] this_bound=0 [L129] this_oldImpl=0 VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=39, P1=0, P10=0, P11=0, P12=0, P13=0, P14=0, P15=0, P16=0, P17=1, P18=0, P19=1, P2=0, P20=0, P21=0, P22=0, P23=0, P24=0, P25=0, P26=0, P27=0, P28=0, P29=0, P3=1, P30=0, P4=0, P5=1, P6=1, P7=0, P8=0, P9=0, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=0, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L80] COND TRUE 1 [L83] _Bool P1=__VERIFIER_nondet_int(); [L84] int P2=__VERIFIER_nondet_int(); [L85] _Bool P3=__VERIFIER_nondet_int(); [L86] _Bool P4=__VERIFIER_nondet_int(); [L87] _Bool P5=__VERIFIER_nondet_int(); [L88] _Bool P6=__VERIFIER_nondet_int(); [L89] int P7=__VERIFIER_nondet_int(); [L90] int P8=__VERIFIER_nondet_int(); [L91] int P9=__VERIFIER_nondet_int(); [L92] int P10=__VERIFIER_nondet_int(); [L93] int P11=__VERIFIER_nondet_int(); [L94] int P12=__VERIFIER_nondet_int(); [L95] int P13=__VERIFIER_nondet_int(); [L96] int P14=__VERIFIER_nondet_int(); [L97] int P15=__VERIFIER_nondet_int(); [L98] int P16=__VERIFIER_nondet_int(); [L99] _Bool P17=__VERIFIER_nondet_int(); [L100] int P18=__VERIFIER_nondet_int(); [L101] _Bool P19=__VERIFIER_nondet_int(); [L102] int P20=__VERIFIER_nondet_int(); [L103] int P21=__VERIFIER_nondet_int(); [L104] int P22=__VERIFIER_nondet_int(); [L105] int P23=__VERIFIER_nondet_int(); [L106] int P24=__VERIFIER_nondet_int(); [L107] int P25=__VERIFIER_nondet_int(); [L108] int P26=__VERIFIER_nondet_int(); [L109] int P27=__VERIFIER_nondet_int(); [L110] int P28=__VERIFIER_nondet_int(); [L111] int P29=__VERIFIER_nondet_int(); [L112] int P30=__VERIFIER_nondet_int(); [L116] COND FALSE !(q == 0) VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=39, P1=0, P10=0, P11=0, P12=0, P13=0, P14=0, P15=0, P16=0, P17=1, P18=0, P19=1, P2=0, P20=0, P21=0, P22=0, P23=0, P24=0, P25=0, P26=0, P27=0, P28=0, P29=0, P3=0, P30=1, P4=1, P5=1, P6=0, P7=0, P8=0, P9=0, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=0, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L136] COND FALSE !(q == 1) VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=39, P1=0, P10=0, P11=0, P12=0, P13=0, P14=0, P15=0, P16=0, P17=1, P18=0, P19=1, P2=0, P20=0, P21=0, P22=0, P23=0, P24=0, P25=0, P26=0, P27=0, P28=0, P29=0, P3=0, P30=1, P4=1, P5=1, P6=0, P7=0, P8=0, P9=0, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=0, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L748] COND TRUE q == 2 [L749] COND FALSE !(__VERIFIER_nondet_int()) [L765] COND FALSE !(__VERIFIER_nondet_int()) [L781] COND FALSE !(__VERIFIER_nondet_int()) [L797] COND FALSE !(__VERIFIER_nondet_int()) [L813] COND FALSE !(__VERIFIER_nondet_int()) [L829] COND FALSE !(__VERIFIER_nondet_int()) [L845] COND FALSE !(__VERIFIER_nondet_int()) [L861] COND FALSE !(__VERIFIER_nondet_int()) [L877] COND FALSE !(__VERIFIER_nondet_int()) [L893] COND FALSE !(__VERIFIER_nondet_int()) [L909] COND FALSE !(__VERIFIER_nondet_int()) [L925] COND FALSE !(__VERIFIER_nondet_int()) [L941] COND FALSE !(__VERIFIER_nondet_int()) [L957] COND FALSE !(__VERIFIER_nondet_int()) [L973] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L1005] COND FALSE !(__VERIFIER_nondet_int()) [L1021] COND FALSE !(__VERIFIER_nondet_int()) [L1037] COND FALSE !(__VERIFIER_nondet_int()) [L1053] COND FALSE !(__VERIFIER_nondet_int()) [L1069] COND FALSE !(__VERIFIER_nondet_int()) [L1085] COND FALSE !(__VERIFIER_nondet_int()) [L1101] COND FALSE !(__VERIFIER_nondet_int()) [L1117] COND FALSE !(__VERIFIER_nondet_int()) [L1133] COND FALSE !(__VERIFIER_nondet_int()) [L1149] COND FALSE !(__VERIFIER_nondet_int()) [L1165] COND FALSE !(__VERIFIER_nondet_int()) [L1181] COND FALSE !(__VERIFIER_nondet_int()) [L1197] COND FALSE !(__VERIFIER_nondet_int()) [L1213] COND FALSE !(__VERIFIER_nondet_int()) [L1229] COND FALSE !(__VERIFIER_nondet_int()) [L1245] COND FALSE !(__VERIFIER_nondet_int()) [L1261] COND FALSE !(__VERIFIER_nondet_int()) [L1277] COND FALSE !(__VERIFIER_nondet_int()) [L1293] COND FALSE !(__VERIFIER_nondet_int()) [L1309] COND FALSE !(__VERIFIER_nondet_int()) [L1325] COND FALSE !(__VERIFIER_nondet_int()) [L1341] COND FALSE !(__VERIFIER_nondet_int()) [L1357] COND FALSE !(__VERIFIER_nondet_int()) [L1373] COND FALSE !(__VERIFIER_nondet_int()) [L1389] COND FALSE !(__VERIFIER_nondet_int()) [L1405] COND FALSE !(__VERIFIER_nondet_int()) [L1421] COND FALSE !(__VERIFIER_nondet_int()) [L1437] COND FALSE !(__VERIFIER_nondet_int()) [L1453] COND FALSE !(__VERIFIER_nondet_int()) [L1469] COND FALSE !(__VERIFIER_nondet_int()) [L1485] COND FALSE !(__VERIFIER_nondet_int()) [L1501] COND FALSE !(__VERIFIER_nondet_int()) [L1517] COND FALSE !(__VERIFIER_nondet_int()) [L1533] COND FALSE !(__VERIFIER_nondet_int()) [L1549] COND FALSE !(__VERIFIER_nondet_int()) [L1565] COND FALSE !(__VERIFIER_nondet_int()) [L1581] COND FALSE !(__VERIFIER_nondet_int()) [L1597] COND FALSE !(__VERIFIER_nondet_int()) [L1613] COND FALSE !(__VERIFIER_nondet_int()) [L1629] COND FALSE !(__VERIFIER_nondet_int()) [L1645] COND FALSE !(__VERIFIER_nondet_int()) [L1661] COND FALSE !(__VERIFIER_nondet_int()) [L1677] COND FALSE !(__VERIFIER_nondet_int()) [L1693] COND FALSE !(__VERIFIER_nondet_int()) [L1709] COND FALSE !(__VERIFIER_nondet_int()) [L1725] COND FALSE !(__VERIFIER_nondet_int()) [L1741] COND FALSE !(__VERIFIER_nondet_int()) [L1757] COND FALSE !(__VERIFIER_nondet_int()) [L1773] COND FALSE !(__VERIFIER_nondet_int()) [L1789] COND FALSE !(__VERIFIER_nondet_int()) [L1805] COND FALSE !(__VERIFIER_nondet_int()) [L1821] COND FALSE !(__VERIFIER_nondet_int()) [L1837] COND FALSE !(__VERIFIER_nondet_int()) [L1853] COND FALSE !(__VERIFIER_nondet_int()) [L1869] COND FALSE !(__VERIFIER_nondet_int()) [L1885] COND FALSE !(__VERIFIER_nondet_int()) [L1901] COND FALSE !(__VERIFIER_nondet_int()) [L1917] COND FALSE !(__VERIFIER_nondet_int()) [L1933] COND FALSE !(__VERIFIER_nondet_int()) [L1949] COND FALSE !(__VERIFIER_nondet_int()) [L1965] COND FALSE !(__VERIFIER_nondet_int()) [L1981] COND FALSE !(__VERIFIER_nondet_int()) [L1997] COND FALSE !(__VERIFIER_nondet_int()) [L2013] COND FALSE !(__VERIFIER_nondet_int()) [L2029] COND FALSE !(__VERIFIER_nondet_int()) [L2045] COND FALSE !(__VERIFIER_nondet_int()) [L2061] COND FALSE !(__VERIFIER_nondet_int()) [L2077] COND TRUE __VERIFIER_nondet_int() [L2079] COND TRUE !(P1 != 0) [L2081] method_id = 56 VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=56, P1=0, P10=0, P11=0, P12=0, P13=0, P14=0, P15=0, P16=0, P17=1, P18=0, P19=1, P2=0, P20=0, P21=0, P22=0, P23=0, P24=0, P25=0, P26=0, P27=0, P28=0, P29=0, P3=0, P30=1, P4=1, P5=1, P6=0, P7=0, P8=0, P9=0, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=0, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L2083] COND FALSE !(((this_factory != 0) && !(P30 != 0))) [L2087] q = 2 [L2089] this_factory=P30 [L2089] this_shutIn=this_shutIn [L2089] this_connected=this_connected [L2089] this_closed=this_closed [L2089] this_shutOut=this_shutOut [L2089] this_created=this_created [L2089] this_impl=this_impl [L2089] this_bound=this_bound [L2089] this_oldImpl=this_oldImpl VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=56, P1=0, P10=0, P11=0, P12=0, P13=0, P14=0, P15=0, P16=0, P17=1, P18=0, P19=1, P2=0, P20=0, P21=0, P22=0, P23=0, P24=0, P25=0, P26=0, P27=0, P28=0, P29=0, P3=0, P30=1, P4=1, P5=1, P6=0, P7=0, P8=0, P9=0, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=1, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L80] COND TRUE 1 [L83] _Bool P1=__VERIFIER_nondet_int(); [L84] int P2=__VERIFIER_nondet_int(); [L85] _Bool P3=__VERIFIER_nondet_int(); [L86] _Bool P4=__VERIFIER_nondet_int(); [L87] _Bool P5=__VERIFIER_nondet_int(); [L88] _Bool P6=__VERIFIER_nondet_int(); [L89] int P7=__VERIFIER_nondet_int(); [L90] int P8=__VERIFIER_nondet_int(); [L91] int P9=__VERIFIER_nondet_int(); [L92] int P10=__VERIFIER_nondet_int(); [L93] int P11=__VERIFIER_nondet_int(); [L94] int P12=__VERIFIER_nondet_int(); [L95] int P13=__VERIFIER_nondet_int(); [L96] int P14=__VERIFIER_nondet_int(); [L97] int P15=__VERIFIER_nondet_int(); [L98] int P16=__VERIFIER_nondet_int(); [L99] _Bool P17=__VERIFIER_nondet_int(); [L100] int P18=__VERIFIER_nondet_int(); [L101] _Bool P19=__VERIFIER_nondet_int(); [L102] int P20=__VERIFIER_nondet_int(); [L103] int P21=__VERIFIER_nondet_int(); [L104] int P22=__VERIFIER_nondet_int(); [L105] int P23=__VERIFIER_nondet_int(); [L106] int P24=__VERIFIER_nondet_int(); [L107] int P25=__VERIFIER_nondet_int(); [L108] int P26=__VERIFIER_nondet_int(); [L109] int P27=__VERIFIER_nondet_int(); [L110] int P28=__VERIFIER_nondet_int(); [L111] int P29=__VERIFIER_nondet_int(); [L112] int P30=__VERIFIER_nondet_int(); [L116] COND FALSE !(q == 0) VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=56, P1=1, P10=0, P11=0, P12=0, P13=0, P14=0, P15=0, P16=0, P17=1, P18=0, P19=1, P2=0, P20=0, P21=0, P22=0, P23=0, P24=0, P25=0, P26=0, P27=0, P28=0, P29=1, P3=1, P30=0, P4=0, P5=1, P6=1, P7=0, P8=0, P9=0, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=1, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L136] COND FALSE !(q == 1) VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=56, P1=1, P10=0, P11=0, P12=0, P13=0, P14=0, P15=0, P16=0, P17=1, P18=0, P19=1, P2=0, P20=0, P21=0, P22=0, P23=0, P24=0, P25=0, P26=0, P27=0, P28=0, P29=1, P3=1, P30=0, P4=0, P5=1, P6=1, P7=0, P8=0, P9=0, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=1, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L748] COND TRUE q == 2 [L749] COND FALSE !(__VERIFIER_nondet_int()) [L765] COND FALSE !(__VERIFIER_nondet_int()) [L781] COND FALSE !(__VERIFIER_nondet_int()) [L797] COND FALSE !(__VERIFIER_nondet_int()) [L813] COND FALSE !(__VERIFIER_nondet_int()) [L829] COND FALSE !(__VERIFIER_nondet_int()) [L845] COND FALSE !(__VERIFIER_nondet_int()) [L861] COND FALSE !(__VERIFIER_nondet_int()) [L877] COND FALSE !(__VERIFIER_nondet_int()) [L893] COND FALSE !(__VERIFIER_nondet_int()) [L909] COND FALSE !(__VERIFIER_nondet_int()) [L925] COND FALSE !(__VERIFIER_nondet_int()) [L941] COND FALSE !(__VERIFIER_nondet_int()) [L957] COND FALSE !(__VERIFIER_nondet_int()) [L973] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L1005] COND FALSE !(__VERIFIER_nondet_int()) [L1021] COND FALSE !(__VERIFIER_nondet_int()) [L1037] COND FALSE !(__VERIFIER_nondet_int()) [L1053] COND FALSE !(__VERIFIER_nondet_int()) [L1069] COND FALSE !(__VERIFIER_nondet_int()) [L1085] COND FALSE !(__VERIFIER_nondet_int()) [L1101] COND FALSE !(__VERIFIER_nondet_int()) [L1117] COND FALSE !(__VERIFIER_nondet_int()) [L1133] COND FALSE !(__VERIFIER_nondet_int()) [L1149] COND FALSE !(__VERIFIER_nondet_int()) [L1165] COND FALSE !(__VERIFIER_nondet_int()) [L1181] COND FALSE !(__VERIFIER_nondet_int()) [L1197] COND FALSE !(__VERIFIER_nondet_int()) [L1213] COND FALSE !(__VERIFIER_nondet_int()) [L1229] COND FALSE !(__VERIFIER_nondet_int()) [L1245] COND FALSE !(__VERIFIER_nondet_int()) [L1261] COND FALSE !(__VERIFIER_nondet_int()) [L1277] COND FALSE !(__VERIFIER_nondet_int()) [L1293] COND FALSE !(__VERIFIER_nondet_int()) [L1309] COND FALSE !(__VERIFIER_nondet_int()) [L1325] COND FALSE !(__VERIFIER_nondet_int()) [L1341] COND FALSE !(__VERIFIER_nondet_int()) [L1357] COND FALSE !(__VERIFIER_nondet_int()) [L1373] COND FALSE !(__VERIFIER_nondet_int()) [L1389] COND FALSE !(__VERIFIER_nondet_int()) [L1405] COND FALSE !(__VERIFIER_nondet_int()) [L1421] COND FALSE !(__VERIFIER_nondet_int()) [L1437] COND FALSE !(__VERIFIER_nondet_int()) [L1453] COND FALSE !(__VERIFIER_nondet_int()) [L1469] COND FALSE !(__VERIFIER_nondet_int()) [L1485] COND FALSE !(__VERIFIER_nondet_int()) [L1501] COND FALSE !(__VERIFIER_nondet_int()) [L1517] COND FALSE !(__VERIFIER_nondet_int()) [L1533] COND FALSE !(__VERIFIER_nondet_int()) [L1549] COND FALSE !(__VERIFIER_nondet_int()) [L1565] COND FALSE !(__VERIFIER_nondet_int()) [L1581] COND FALSE !(__VERIFIER_nondet_int()) [L1597] COND FALSE !(__VERIFIER_nondet_int()) [L1613] COND FALSE !(__VERIFIER_nondet_int()) [L1629] COND FALSE !(__VERIFIER_nondet_int()) [L1645] COND FALSE !(__VERIFIER_nondet_int()) [L1661] COND FALSE !(__VERIFIER_nondet_int()) [L1677] COND FALSE !(__VERIFIER_nondet_int()) [L1693] COND FALSE !(__VERIFIER_nondet_int()) [L1709] COND FALSE !(__VERIFIER_nondet_int()) [L1725] COND FALSE !(__VERIFIER_nondet_int()) [L1741] COND FALSE !(__VERIFIER_nondet_int()) [L1757] COND FALSE !(__VERIFIER_nondet_int()) [L1773] COND FALSE !(__VERIFIER_nondet_int()) [L1789] COND FALSE !(__VERIFIER_nondet_int()) [L1805] COND FALSE !(__VERIFIER_nondet_int()) [L1821] COND FALSE !(__VERIFIER_nondet_int()) [L1837] COND FALSE !(__VERIFIER_nondet_int()) [L1853] COND FALSE !(__VERIFIER_nondet_int()) [L1869] COND FALSE !(__VERIFIER_nondet_int()) [L1885] COND FALSE !(__VERIFIER_nondet_int()) [L1901] COND FALSE !(__VERIFIER_nondet_int()) [L1917] COND FALSE !(__VERIFIER_nondet_int()) [L1933] COND FALSE !(__VERIFIER_nondet_int()) [L1949] COND FALSE !(__VERIFIER_nondet_int()) [L1965] COND FALSE !(__VERIFIER_nondet_int()) [L1981] COND FALSE !(__VERIFIER_nondet_int()) [L1997] COND FALSE !(__VERIFIER_nondet_int()) [L2013] COND FALSE !(__VERIFIER_nondet_int()) [L2029] COND FALSE !(__VERIFIER_nondet_int()) [L2045] COND FALSE !(__VERIFIER_nondet_int()) [L2061] COND TRUE __VERIFIER_nondet_int() [L2063] COND TRUE (P1 != 0) [L2065] method_id = 55 VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=55, P1=1, P10=0, P11=0, P12=0, P13=0, P14=0, P15=0, P16=0, P17=1, P18=0, P19=1, P2=0, P20=0, P21=0, P22=0, P23=0, P24=0, P25=0, P26=0, P27=0, P28=0, P29=1, P3=1, P30=0, P4=0, P5=1, P6=1, P7=0, P8=0, P9=0, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=1, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L2067] COND TRUE ((this_factory != 0) && (P29 != 0)) VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=55, P1=1, P10=0, P11=0, P12=0, P13=0, P14=0, P15=0, P16=0, P17=1, P18=0, P19=1, P2=0, P20=0, P21=0, P22=0, P23=0, P24=0, P25=0, P26=0, P27=0, P28=0, P29=1, P3=1, P30=0, P4=0, P5=1, P6=1, P7=0, P8=0, P9=0, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=1, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L49138] __VERIFIER_error() VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=55, P1=1, P10=0, P11=0, P12=0, P13=0, P14=0, P15=0, P16=0, P17=1, P18=0, P19=1, P2=0, P20=0, P21=0, P22=0, P23=0, P24=0, P25=0, P26=0, P27=0, P28=0, P29=1, P3=1, P30=0, P4=0, P5=1, P6=1, P7=0, P8=0, P9=0, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=1, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 9216 locations, 1 error locations. UNSAFE Result, 89.5s OverallTime, 28 OverallIterations, 4 TraceHistogramMax, 69.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 310329 SDtfs, 200627 SDslu, 192977 SDs, 0 SdLazy, 55854 SolverSat, 21037 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 48.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66202occurred in iteration=10, 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: 14.9s AutomataMinimizationTime, 27 MinimizatonAttempts, 16312 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 2318 NumberOfCodeBlocks, 2318 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2099 ConstructedInterpolants, 0 QuantifiedInterpolants, 533396 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 214/214 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/psyco_net_1_false-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_21-39-14-688.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/psyco_net_1_false-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_21-39-14-688.csv Received shutdown request...