java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 03:54:59,559 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:54:59,562 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:54:59,580 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:54:59,581 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:54:59,582 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:54:59,583 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:54:59,585 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:54:59,586 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:54:59,587 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:54:59,588 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:54:59,588 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:54:59,589 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:54:59,590 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:54:59,591 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:54:59,592 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:54:59,593 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:54:59,596 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:54:59,598 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:54:59,599 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:54:59,601 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:54:59,602 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:54:59,604 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 03:54:59,605 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 03:54:59,605 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 03:54:59,606 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 03:54:59,607 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 03:54:59,608 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 03:54:59,608 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 03:54:59,609 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 03:54:59,610 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 03:54:59,610 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 03:54:59,610 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 03:54:59,611 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 03:54:59,612 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 03:54:59,612 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 03:54:59,613 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 03:54:59,628 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:54:59,628 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:54:59,629 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:54:59,629 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:54:59,629 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:54:59,629 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:54:59,630 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:54:59,630 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:54:59,630 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:54:59,630 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:54:59,630 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:54:59,631 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:54:59,631 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:54:59,632 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:54:59,632 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:54:59,632 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:54:59,632 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:54:59,632 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:54:59,633 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:54:59,633 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:54:59,633 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:54:59,633 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:54:59,633 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:54:59,633 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:54:59,634 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:54:59,634 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:54:59,634 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:54:59,634 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:54:59,634 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:54:59,635 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:54:59,635 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:54:59,635 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:54:59,635 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:54:59,635 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:54:59,682 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:54:59,695 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:54:59,699 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:54:59,700 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:54:59,701 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:54:59,702 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c [2018-10-27 03:54:59,753 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/135ba5b39/0e3ceb3b237749469ec1aa2f32d88d2f/FLAG621a41e3c [2018-10-27 03:55:00,644 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:55:00,645 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label45_true-unreach-call.c [2018-10-27 03:55:00,689 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/135ba5b39/0e3ceb3b237749469ec1aa2f32d88d2f/FLAG621a41e3c [2018-10-27 03:55:00,706 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/135ba5b39/0e3ceb3b237749469ec1aa2f32d88d2f [2018-10-27 03:55:00,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:55:00,720 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:55:00,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:55:00,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:55:00,726 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:55:00,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:55:00" (1/1) ... [2018-10-27 03:55:00,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b326c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:55:00, skipping insertion in model container [2018-10-27 03:55:00,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:55:00" (1/1) ... [2018-10-27 03:55:00,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:55:00,995 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:55:02,885 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:55:02,891 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:55:03,940 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:55:03,997 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:55:03,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:55:03 WrapperNode [2018-10-27 03:55:03,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:55:03,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:55:03,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:55:04,000 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:55:04,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:55:03" (1/1) ... [2018-10-27 03:55:04,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:55:03" (1/1) ... [2018-10-27 03:55:04,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:55:04,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:55:04,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:55:04,736 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:55:04,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:55:03" (1/1) ... [2018-10-27 03:55:04,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:55:03" (1/1) ... [2018-10-27 03:55:04,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:55:03" (1/1) ... [2018-10-27 03:55:04,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:55:03" (1/1) ... [2018-10-27 03:55:04,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:55:03" (1/1) ... [2018-10-27 03:55:05,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:55:03" (1/1) ... [2018-10-27 03:55:05,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:55:03" (1/1) ... [2018-10-27 03:55:05,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:55:05,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:55:05,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:55:05,158 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:55:05,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:55:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 03:55:05,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:55:05,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:55:05,226 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-27 03:55:05,226 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-27 03:55:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-27 03:55:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-27 03:55:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 03:55:05,227 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 03:55:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 03:55:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 03:55:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:55:05,228 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:55:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:55:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:55:05,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:55:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:55:05,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:55:05,229 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:55:22,323 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:55:22,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:55:22 BoogieIcfgContainer [2018-10-27 03:55:22,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:55:22,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:55:22,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:55:22,329 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:55:22,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:55:00" (1/3) ... [2018-10-27 03:55:22,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d96a119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:55:22, skipping insertion in model container [2018-10-27 03:55:22,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:55:03" (2/3) ... [2018-10-27 03:55:22,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d96a119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:55:22, skipping insertion in model container [2018-10-27 03:55:22,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:55:22" (3/3) ... [2018-10-27 03:55:22,333 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label45_true-unreach-call.c [2018-10-27 03:55:22,343 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:55:22,353 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:55:22,367 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:55:22,432 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:55:22,433 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:55:22,433 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:55:22,433 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:55:22,433 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:55:22,433 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:55:22,434 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:55:22,434 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:55:22,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-27 03:55:22,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-27 03:55:22,498 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:55:22,499 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:55:22,501 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:55:22,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:55:22,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1607603996, now seen corresponding path program 1 times [2018-10-27 03:55:22,511 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:55:22,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:55:22,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:55:22,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:55:22,570 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:55:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:55:23,038 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-27 03:55:23,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:55:23,103 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:55:23,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:55:23,103 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:55:23,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:55:23,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:55:23,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:55:23,157 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-10-27 03:55:49,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:55:49,126 INFO L93 Difference]: Finished difference Result 6465 states and 12332 transitions. [2018-10-27 03:55:49,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:55:49,128 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-10-27 03:55:49,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:55:49,194 INFO L225 Difference]: With dead ends: 6465 [2018-10-27 03:55:49,194 INFO L226 Difference]: Without dead ends: 4681 [2018-10-27 03:55:49,213 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:55:49,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4681 states. [2018-10-27 03:55:49,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4681 to 3200. [2018-10-27 03:55:49,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3200 states. [2018-10-27 03:55:49,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 5132 transitions. [2018-10-27 03:55:49,472 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 5132 transitions. Word has length 54 [2018-10-27 03:55:49,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:55:49,473 INFO L481 AbstractCegarLoop]: Abstraction has 3200 states and 5132 transitions. [2018-10-27 03:55:49,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:55:49,473 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 5132 transitions. [2018-10-27 03:55:49,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-27 03:55:49,487 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:55:49,487 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:55:49,488 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:55:49,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:55:49,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1301823847, now seen corresponding path program 1 times [2018-10-27 03:55:49,488 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:55:49,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:55:49,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:55:49,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:55:49,491 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:55:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:55:49,882 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:55:50,460 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:55:50,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:55:50,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:55:50,461 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:55:50,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:55:50,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:55:50,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:55:50,464 INFO L87 Difference]: Start difference. First operand 3200 states and 5132 transitions. Second operand 6 states. [2018-10-27 03:56:19,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:56:19,434 INFO L93 Difference]: Finished difference Result 12097 states and 19723 transitions. [2018-10-27 03:56:19,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:56:19,435 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-10-27 03:56:19,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:56:19,494 INFO L225 Difference]: With dead ends: 12097 [2018-10-27 03:56:19,494 INFO L226 Difference]: Without dead ends: 8903 [2018-10-27 03:56:19,509 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:56:19,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8903 states. [2018-10-27 03:56:19,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8903 to 8846. [2018-10-27 03:56:19,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8846 states. [2018-10-27 03:56:19,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8846 states to 8846 states and 12708 transitions. [2018-10-27 03:56:19,734 INFO L78 Accepts]: Start accepts. Automaton has 8846 states and 12708 transitions. Word has length 126 [2018-10-27 03:56:19,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:56:19,734 INFO L481 AbstractCegarLoop]: Abstraction has 8846 states and 12708 transitions. [2018-10-27 03:56:19,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:56:19,735 INFO L276 IsEmpty]: Start isEmpty. Operand 8846 states and 12708 transitions. [2018-10-27 03:56:19,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-27 03:56:19,739 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:56:19,739 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:56:19,740 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:56:19,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:56:19,740 INFO L82 PathProgramCache]: Analyzing trace with hash -13978768, now seen corresponding path program 1 times [2018-10-27 03:56:19,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:56:19,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:56:19,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:56:19,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:56:19,742 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:56:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:56:20,120 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:56:20,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:56:20,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:56:20,121 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:56:20,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:56:20,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:56:20,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:56:20,124 INFO L87 Difference]: Start difference. First operand 8846 states and 12708 transitions. Second operand 6 states. [2018-10-27 03:56:47,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:56:47,728 INFO L93 Difference]: Finished difference Result 29443 states and 43438 transitions. [2018-10-27 03:56:47,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 03:56:47,730 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-10-27 03:56:47,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:56:47,826 INFO L225 Difference]: With dead ends: 29443 [2018-10-27 03:56:47,826 INFO L226 Difference]: Without dead ends: 20603 [2018-10-27 03:56:47,863 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:56:47,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20603 states. [2018-10-27 03:56:48,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20603 to 20447. [2018-10-27 03:56:48,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20447 states. [2018-10-27 03:56:48,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20447 states to 20447 states and 28690 transitions. [2018-10-27 03:56:48,352 INFO L78 Accepts]: Start accepts. Automaton has 20447 states and 28690 transitions. Word has length 128 [2018-10-27 03:56:48,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:56:48,353 INFO L481 AbstractCegarLoop]: Abstraction has 20447 states and 28690 transitions. [2018-10-27 03:56:48,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:56:48,353 INFO L276 IsEmpty]: Start isEmpty. Operand 20447 states and 28690 transitions. [2018-10-27 03:56:48,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-27 03:56:48,358 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:56:48,359 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:56:48,361 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:56:48,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:56:48,362 INFO L82 PathProgramCache]: Analyzing trace with hash 721795799, now seen corresponding path program 1 times [2018-10-27 03:56:48,362 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:56:48,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:56:48,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:56:48,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:56:48,363 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:56:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:56:48,844 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:56:48,844 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:56:48,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:56:48,845 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:56:48,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:56:48,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:56:48,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:56:48,846 INFO L87 Difference]: Start difference. First operand 20447 states and 28690 transitions. Second operand 6 states. [2018-10-27 03:57:14,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:57:14,630 INFO L93 Difference]: Finished difference Result 62296 states and 89747 transitions. [2018-10-27 03:57:14,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 03:57:14,631 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-10-27 03:57:14,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:57:14,804 INFO L225 Difference]: With dead ends: 62296 [2018-10-27 03:57:14,805 INFO L226 Difference]: Without dead ends: 41855 [2018-10-27 03:57:14,868 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:57:14,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41855 states. [2018-10-27 03:57:15,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41855 to 41518. [2018-10-27 03:57:15,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41518 states. [2018-10-27 03:57:16,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41518 states to 41518 states and 57765 transitions. [2018-10-27 03:57:16,101 INFO L78 Accepts]: Start accepts. Automaton has 41518 states and 57765 transitions. Word has length 136 [2018-10-27 03:57:16,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:57:16,101 INFO L481 AbstractCegarLoop]: Abstraction has 41518 states and 57765 transitions. [2018-10-27 03:57:16,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:57:16,102 INFO L276 IsEmpty]: Start isEmpty. Operand 41518 states and 57765 transitions. [2018-10-27 03:57:16,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-10-27 03:57:16,106 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:57:16,110 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:57:16,111 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:57:16,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:57:16,111 INFO L82 PathProgramCache]: Analyzing trace with hash -179031743, now seen corresponding path program 1 times [2018-10-27 03:57:16,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:57:16,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:57:16,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:57:16,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:57:16,113 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:57:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:57:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:57:16,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:57:16,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 03:57:16,467 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:57:16,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 03:57:16,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 03:57:16,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 03:57:16,468 INFO L87 Difference]: Start difference. First operand 41518 states and 57765 transitions. Second operand 5 states. [2018-10-27 03:57:47,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:57:47,355 INFO L93 Difference]: Finished difference Result 125877 states and 180446 transitions. [2018-10-27 03:57:47,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 03:57:47,363 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2018-10-27 03:57:47,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:57:47,644 INFO L225 Difference]: With dead ends: 125877 [2018-10-27 03:57:47,644 INFO L226 Difference]: Without dead ends: 84365 [2018-10-27 03:57:47,719 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:57:47,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84365 states. [2018-10-27 03:57:48,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84365 to 83171. [2018-10-27 03:57:48,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83171 states. [2018-10-27 03:57:49,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83171 states to 83171 states and 107199 transitions. [2018-10-27 03:57:49,181 INFO L78 Accepts]: Start accepts. Automaton has 83171 states and 107199 transitions. Word has length 156 [2018-10-27 03:57:49,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:57:49,181 INFO L481 AbstractCegarLoop]: Abstraction has 83171 states and 107199 transitions. [2018-10-27 03:57:49,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 03:57:49,182 INFO L276 IsEmpty]: Start isEmpty. Operand 83171 states and 107199 transitions. [2018-10-27 03:57:49,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-10-27 03:57:49,190 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:57:49,190 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:57:49,191 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:57:49,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:57:49,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1693657294, now seen corresponding path program 1 times [2018-10-27 03:57:49,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:57:49,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:57:49,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:57:49,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:57:49,192 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:57:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:57:49,511 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:57:49,910 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:57:49,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:57:49,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:57:49,911 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:57:49,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:57:49,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:57:49,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:57:49,912 INFO L87 Difference]: Start difference. First operand 83171 states and 107199 transitions. Second operand 6 states. [2018-10-27 03:58:10,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:58:10,830 INFO L93 Difference]: Finished difference Result 190955 states and 256469 transitions. [2018-10-27 03:58:10,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:58:10,830 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2018-10-27 03:58:10,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:58:11,951 INFO L225 Difference]: With dead ends: 190955 [2018-10-27 03:58:11,951 INFO L226 Difference]: Without dead ends: 107790 [2018-10-27 03:58:12,048 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:58:12,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107790 states. [2018-10-27 03:58:13,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107790 to 107021. [2018-10-27 03:58:13,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107021 states. [2018-10-27 03:58:13,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107021 states to 107021 states and 138028 transitions. [2018-10-27 03:58:13,811 INFO L78 Accepts]: Start accepts. Automaton has 107021 states and 138028 transitions. Word has length 219 [2018-10-27 03:58:13,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:58:13,812 INFO L481 AbstractCegarLoop]: Abstraction has 107021 states and 138028 transitions. [2018-10-27 03:58:13,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:58:13,812 INFO L276 IsEmpty]: Start isEmpty. Operand 107021 states and 138028 transitions. [2018-10-27 03:58:13,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2018-10-27 03:58:13,830 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:58:13,831 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:58:13,831 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:58:13,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:58:13,831 INFO L82 PathProgramCache]: Analyzing trace with hash -2000312291, now seen corresponding path program 1 times [2018-10-27 03:58:13,832 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:58:13,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:58:13,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:58:13,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:58:13,833 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:58:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:58:14,397 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:58:14,398 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:58:14,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:58:14,398 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:58:14,399 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:58:14,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:58:14,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:58:14,400 INFO L87 Difference]: Start difference. First operand 107021 states and 138028 transitions. Second operand 4 states. [2018-10-27 03:58:40,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:58:40,505 INFO L93 Difference]: Finished difference Result 304894 states and 411666 transitions. [2018-10-27 03:58:40,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:58:40,505 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 541 [2018-10-27 03:58:40,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:58:42,307 INFO L225 Difference]: With dead ends: 304894 [2018-10-27 03:58:42,308 INFO L226 Difference]: Without dead ends: 197879 [2018-10-27 03:58:42,473 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:58:42,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197879 states. [2018-10-27 03:58:44,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197879 to 197580. [2018-10-27 03:58:44,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197580 states. [2018-10-27 03:58:46,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197580 states to 197580 states and 256739 transitions. [2018-10-27 03:58:46,509 INFO L78 Accepts]: Start accepts. Automaton has 197580 states and 256739 transitions. Word has length 541 [2018-10-27 03:58:46,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:58:46,510 INFO L481 AbstractCegarLoop]: Abstraction has 197580 states and 256739 transitions. [2018-10-27 03:58:46,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:58:46,511 INFO L276 IsEmpty]: Start isEmpty. Operand 197580 states and 256739 transitions. [2018-10-27 03:58:46,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2018-10-27 03:58:46,536 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:58:46,536 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:58:46,537 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:58:46,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:58:46,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1092730453, now seen corresponding path program 1 times [2018-10-27 03:58:46,537 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:58:46,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:58:46,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:58:46,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:58:46,539 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:58:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:58:47,266 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:58:47,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:58:47,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:58:47,267 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:58:47,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:58:47,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:58:47,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:58:47,270 INFO L87 Difference]: Start difference. First operand 197580 states and 256739 transitions. Second operand 4 states. Received shutdown request... [2018-10-27 03:58:55,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:58:55,878 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:58:55,885 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:58:55,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:58:55 BoogieIcfgContainer [2018-10-27 03:58:55,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:58:55,886 INFO L168 Benchmark]: Toolchain (without parser) took 235167.14 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -446.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-27 03:58:55,888 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 03:58:55,888 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3277.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. [2018-10-27 03:58:55,889 INFO L168 Benchmark]: Boogie Procedure Inliner took 736.35 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 872.9 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-27 03:58:55,892 INFO L168 Benchmark]: Boogie Preprocessor took 421.83 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 53.6 MB). Peak memory consumption was 53.6 MB. Max. memory is 7.1 GB. [2018-10-27 03:58:55,893 INFO L168 Benchmark]: RCFGBuilder took 17166.53 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 162.5 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 507.9 MB). Peak memory consumption was 670.4 MB. Max. memory is 7.1 GB. [2018-10-27 03:58:55,895 INFO L168 Benchmark]: TraceAbstraction took 213559.60 ms. Allocated memory was 2.6 GB in the beginning and 3.4 GB in the end (delta: 791.7 MB). Free memory was 1.7 GB in the beginning and 1.9 GB in the end (delta: -122.9 MB). Peak memory consumption was 668.8 MB. Max. memory is 7.1 GB. [2018-10-27 03:58:55,904 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3277.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 736.35 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 872.9 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 421.83 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 53.6 MB). Peak memory consumption was 53.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17166.53 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 162.5 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 507.9 MB). Peak memory consumption was 670.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213559.60 ms. Allocated memory was 2.6 GB in the beginning and 3.4 GB in the end (delta: 791.7 MB). Free memory was 1.7 GB in the beginning and 1.9 GB in the end (delta: -122.9 MB). Peak memory consumption was 668.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 157]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 157). Cancelled while BasicCegarLoop was constructing difference of abstraction (197580states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (72261 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 213.4s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 198.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6940 SDtfs, 47737 SDslu, 5301 SDs, 0 SdLazy, 74434 SolverSat, 19307 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 168.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197580occurred in iteration=7, 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: 9.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 4293 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 2008 NumberOfCodeBlocks, 2008 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2000 ConstructedInterpolants, 0 QuantifiedInterpolants, 1429224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 329/329 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown