java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label14_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 06:28:58,411 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 06:28:58,413 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 06:28:58,430 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 06:28:58,431 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 06:28:58,432 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 06:28:58,434 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 06:28:58,436 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 06:28:58,439 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 06:28:58,439 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 06:28:58,441 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 06:28:58,442 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 06:28:58,443 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 06:28:58,444 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 06:28:58,445 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 06:28:58,448 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 06:28:58,449 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 06:28:58,451 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 06:28:58,459 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 06:28:58,466 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 06:28:58,467 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 06:28:58,468 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 06:28:58,470 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 06:28:58,470 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 06:28:58,470 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 06:28:58,473 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 06:28:58,474 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 06:28:58,475 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 06:28:58,475 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 06:28:58,476 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 06:28:58,477 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 06:28:58,477 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 06:28:58,477 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 06:28:58,478 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 06:28:58,478 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 06:28:58,479 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 06:28:58,479 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 06:28:58,494 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 06:28:58,494 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 06:28:58,495 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 06:28:58,495 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 06:28:58,495 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 06:28:58,496 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 06:28:58,496 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 06:28:58,496 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 06:28:58,496 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 06:28:58,496 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 06:28:58,497 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 06:28:58,497 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 06:28:58,497 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 06:28:58,497 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 06:28:58,498 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 06:28:58,498 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 06:28:58,498 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 06:28:58,498 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 06:28:58,499 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 06:28:58,499 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 06:28:58,499 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 06:28:58,499 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 06:28:58,499 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 06:28:58,500 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 06:28:58,500 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 06:28:58,500 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 06:28:58,500 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 06:28:58,500 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 06:28:58,501 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 06:28:58,501 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 06:28:58,501 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 06:28:58,501 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 06:28:58,501 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 06:28:58,501 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 06:28:58,502 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 06:28:58,502 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 06:28:58,551 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 06:28:58,564 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 06:28:58,567 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 06:28:58,569 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 06:28:58,569 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 06:28:58,570 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label14_false-unreach-call.c [2018-11-07 06:28:58,642 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa7caf85/d54a08a8c3634a0dba57eca924e52ddd/FLAGe9a606544 [2018-11-07 06:28:59,307 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 06:28:59,308 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label14_false-unreach-call.c [2018-11-07 06:28:59,331 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa7caf85/d54a08a8c3634a0dba57eca924e52ddd/FLAGe9a606544 [2018-11-07 06:28:59,353 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa7caf85/d54a08a8c3634a0dba57eca924e52ddd [2018-11-07 06:28:59,363 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 06:28:59,364 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 06:28:59,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 06:28:59,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 06:28:59,370 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 06:28:59,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:28:59" (1/1) ... [2018-11-07 06:28:59,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5236ebd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:28:59, skipping insertion in model container [2018-11-07 06:28:59,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:28:59" (1/1) ... [2018-11-07 06:28:59,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 06:28:59,477 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 06:29:00,274 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 06:29:00,278 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 06:29:00,603 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 06:29:00,626 INFO L193 MainTranslator]: Completed translation [2018-11-07 06:29:00,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:29:00 WrapperNode [2018-11-07 06:29:00,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 06:29:00,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 06:29:00,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 06:29:00,628 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 06:29:00,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:29:00" (1/1) ... [2018-11-07 06:29:00,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:29:00" (1/1) ... [2018-11-07 06:29:00,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 06:29:00,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 06:29:00,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 06:29:00,833 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 06:29:00,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:29:00" (1/1) ... [2018-11-07 06:29:00,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:29:00" (1/1) ... [2018-11-07 06:29:00,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:29:00" (1/1) ... [2018-11-07 06:29:00,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:29:00" (1/1) ... [2018-11-07 06:29:00,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:29:00" (1/1) ... [2018-11-07 06:29:00,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:29:00" (1/1) ... [2018-11-07 06:29:01,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:29:00" (1/1) ... [2018-11-07 06:29:01,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 06:29:01,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 06:29:01,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 06:29:01,025 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 06:29:01,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:29:00" (1/1) ... No working directory specified, using /storage/repos/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 [2018-11-07 06:29:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 06:29:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 06:29:01,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 06:29:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 06:29:01,097 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 06:29:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 06:29:01,098 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 06:29:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 06:29:01,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 06:29:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 06:29:01,098 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 06:29:07,153 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 06:29:07,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:29:07 BoogieIcfgContainer [2018-11-07 06:29:07,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 06:29:07,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 06:29:07,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 06:29:07,160 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 06:29:07,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:28:59" (1/3) ... [2018-11-07 06:29:07,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b16dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:29:07, skipping insertion in model container [2018-11-07 06:29:07,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:29:00" (2/3) ... [2018-11-07 06:29:07,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b16dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:29:07, skipping insertion in model container [2018-11-07 06:29:07,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:29:07" (3/3) ... [2018-11-07 06:29:07,164 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label14_false-unreach-call.c [2018-11-07 06:29:07,172 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 06:29:07,181 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 06:29:07,199 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 06:29:07,244 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 06:29:07,245 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 06:29:07,245 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 06:29:07,245 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 06:29:07,245 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 06:29:07,245 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 06:29:07,246 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 06:29:07,246 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 06:29:07,286 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 06:29:07,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-07 06:29:07,294 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:29:07,295 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] [2018-11-07 06:29:07,298 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:29:07,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:29:07,303 INFO L82 PathProgramCache]: Analyzing trace with hash 250004580, now seen corresponding path program 1 times [2018-11-07 06:29:07,305 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:29:07,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:29:07,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:29:07,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:29:07,351 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:29:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:29:07,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:29:07,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:29:07,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 06:29:07,752 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:29:07,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 06:29:07,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 06:29:07,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 06:29:07,774 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-07 06:29:14,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:29:14,597 INFO L93 Difference]: Finished difference Result 1514 states and 2777 transitions. [2018-11-07 06:29:14,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 06:29:14,608 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-11-07 06:29:14,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:29:14,638 INFO L225 Difference]: With dead ends: 1514 [2018-11-07 06:29:14,638 INFO L226 Difference]: Without dead ends: 1070 [2018-11-07 06:29:14,648 INFO L604 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 [2018-11-07 06:29:14,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2018-11-07 06:29:14,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1068. [2018-11-07 06:29:14,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-11-07 06:29:14,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1675 transitions. [2018-11-07 06:29:14,773 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1675 transitions. Word has length 22 [2018-11-07 06:29:14,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:29:14,774 INFO L480 AbstractCegarLoop]: Abstraction has 1068 states and 1675 transitions. [2018-11-07 06:29:14,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 06:29:14,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1675 transitions. [2018-11-07 06:29:14,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-07 06:29:14,779 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:29:14,779 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 06:29:14,779 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:29:14,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:29:14,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1633554799, now seen corresponding path program 1 times [2018-11-07 06:29:14,780 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:29:14,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:29:14,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:29:14,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:29:14,784 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:29:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:29:15,035 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:29:15,036 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:29:15,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 06:29:15,036 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:29:15,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 06:29:15,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 06:29:15,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 06:29:15,039 INFO L87 Difference]: Start difference. First operand 1068 states and 1675 transitions. Second operand 4 states. [2018-11-07 06:29:20,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:29:20,248 INFO L93 Difference]: Finished difference Result 3986 states and 6446 transitions. [2018-11-07 06:29:20,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 06:29:20,248 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2018-11-07 06:29:20,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:29:20,272 INFO L225 Difference]: With dead ends: 3986 [2018-11-07 06:29:20,272 INFO L226 Difference]: Without dead ends: 2924 [2018-11-07 06:29:20,283 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 06:29:20,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2018-11-07 06:29:20,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2922. [2018-11-07 06:29:20,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2922 states. [2018-11-07 06:29:20,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 4197 transitions. [2018-11-07 06:29:20,390 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 4197 transitions. Word has length 92 [2018-11-07 06:29:20,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:29:20,391 INFO L480 AbstractCegarLoop]: Abstraction has 2922 states and 4197 transitions. [2018-11-07 06:29:20,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 06:29:20,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 4197 transitions. [2018-11-07 06:29:20,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-11-07 06:29:20,417 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:29:20,417 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 06:29:20,418 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:29:20,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:29:20,418 INFO L82 PathProgramCache]: Analyzing trace with hash 264602961, now seen corresponding path program 1 times [2018-11-07 06:29:20,418 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:29:20,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:29:20,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:29:20,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:29:20,420 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:29:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:29:21,121 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 53 proven. 222 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-07 06:29:21,122 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:29:21,122 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:29:21,123 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 280 with the following transitions: [2018-11-07 06:29:21,125 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 06:29:21,173 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:29:21,174 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:29:22,483 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 06:29:22,486 INFO L272 AbstractInterpreter]: Visited 105 different actions 302 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 06:29:22,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:29:22,516 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 06:29:23,226 INFO L227 lantSequenceWeakener]: Weakened 276 states. On average, predicates are now at 83.37% of their original sizes. [2018-11-07 06:29:23,226 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 06:29:23,818 INFO L415 sIntCurrentIteration]: We unified 278 AI predicates to 278 [2018-11-07 06:29:23,818 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 06:29:23,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 06:29:23,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-11-07 06:29:23,820 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:29:23,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 06:29:23,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 06:29:23,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-07 06:29:23,822 INFO L87 Difference]: Start difference. First operand 2922 states and 4197 transitions. Second operand 9 states. [2018-11-07 06:30:10,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:30:10,179 INFO L93 Difference]: Finished difference Result 6780 states and 9480 transitions. [2018-11-07 06:30:10,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 06:30:10,179 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 279 [2018-11-07 06:30:10,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:30:10,204 INFO L225 Difference]: With dead ends: 6780 [2018-11-07 06:30:10,204 INFO L226 Difference]: Without dead ends: 3864 [2018-11-07 06:30:10,217 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 284 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2018-11-07 06:30:10,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3864 states. [2018-11-07 06:30:10,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3864 to 3861. [2018-11-07 06:30:10,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3861 states. [2018-11-07 06:30:10,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3861 states to 3861 states and 5194 transitions. [2018-11-07 06:30:10,316 INFO L78 Accepts]: Start accepts. Automaton has 3861 states and 5194 transitions. Word has length 279 [2018-11-07 06:30:10,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:30:10,318 INFO L480 AbstractCegarLoop]: Abstraction has 3861 states and 5194 transitions. [2018-11-07 06:30:10,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 06:30:10,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3861 states and 5194 transitions. [2018-11-07 06:30:10,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2018-11-07 06:30:10,331 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:30:10,331 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 06:30:10,332 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:30:10,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:30:10,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1933733052, now seen corresponding path program 1 times [2018-11-07 06:30:10,334 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:30:10,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:30:10,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:30:10,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:30:10,335 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:30:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:30:11,456 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-07 06:30:11,456 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:30:11,456 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:30:11,457 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 379 with the following transitions: [2018-11-07 06:30:11,458 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 06:30:11,488 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:30:11,489 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:30:12,097 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:30:12,097 INFO L272 AbstractInterpreter]: Visited 284 different actions 846 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-07 06:30:12,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:30:12,135 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:30:12,135 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:30:12,135 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 06:30:12,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:30:12,161 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:30:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:30:12,341 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:30:12,674 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:30:12,675 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:30:13,154 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:30:13,185 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 06:30:13,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-11-07 06:30:13,186 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 06:30:13,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 06:30:13,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 06:30:13,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-11-07 06:30:13,191 INFO L87 Difference]: Start difference. First operand 3861 states and 5194 transitions. Second operand 10 states. [2018-11-07 06:30:38,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:30:38,388 INFO L93 Difference]: Finished difference Result 20696 states and 33295 transitions. [2018-11-07 06:30:38,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-11-07 06:30:38,388 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 378 [2018-11-07 06:30:38,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:30:38,496 INFO L225 Difference]: With dead ends: 20696 [2018-11-07 06:30:38,496 INFO L226 Difference]: Without dead ends: 17780 [2018-11-07 06:30:38,567 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 775 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=614, Invalid=2142, Unknown=0, NotChecked=0, Total=2756 [2018-11-07 06:30:38,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17780 states. [2018-11-07 06:30:39,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17780 to 17636. [2018-11-07 06:30:39,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17636 states. [2018-11-07 06:30:39,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17636 states to 17636 states and 25397 transitions. [2018-11-07 06:30:39,095 INFO L78 Accepts]: Start accepts. Automaton has 17636 states and 25397 transitions. Word has length 378 [2018-11-07 06:30:39,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:30:39,096 INFO L480 AbstractCegarLoop]: Abstraction has 17636 states and 25397 transitions. [2018-11-07 06:30:39,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 06:30:39,096 INFO L276 IsEmpty]: Start isEmpty. Operand 17636 states and 25397 transitions. [2018-11-07 06:30:39,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2018-11-07 06:30:39,128 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:30:39,129 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 06:30:39,129 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:30:39,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:30:39,130 INFO L82 PathProgramCache]: Analyzing trace with hash 371464711, now seen corresponding path program 1 times [2018-11-07 06:30:39,130 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:30:39,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:30:39,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:30:39,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:30:39,131 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:30:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:30:40,267 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-07 06:30:40,691 WARN L179 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-11-07 06:30:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 164 proven. 339 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-11-07 06:30:41,789 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:30:41,789 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:30:41,789 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 500 with the following transitions: [2018-11-07 06:30:41,790 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [710], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1209], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 06:30:41,801 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:30:41,801 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:30:43,035 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:30:43,035 INFO L272 AbstractInterpreter]: Visited 212 different actions 1047 times. Merged at 9 different actions 34 times. Never widened. Found 8 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 06:30:43,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:30:43,073 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:30:43,073 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:30:43,073 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 06:30:43,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:30:43,323 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:30:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:30:43,489 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:30:44,731 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 440 proven. 41 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-11-07 06:30:44,731 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:30:45,748 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 75 proven. 428 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-11-07 06:30:45,768 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 06:30:45,769 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 18 [2018-11-07 06:30:45,769 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 06:30:45,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-07 06:30:45,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-07 06:30:45,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2018-11-07 06:30:45,771 INFO L87 Difference]: Start difference. First operand 17636 states and 25397 transitions. Second operand 13 states. [2018-11-07 06:31:01,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:31:01,132 INFO L93 Difference]: Finished difference Result 60435 states and 90600 transitions. [2018-11-07 06:31:01,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-07 06:31:01,133 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 499 [2018-11-07 06:31:01,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:31:01,355 INFO L225 Difference]: With dead ends: 60435 [2018-11-07 06:31:01,355 INFO L226 Difference]: Without dead ends: 43411 [2018-11-07 06:31:01,439 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1056 GetRequests, 1015 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=428, Invalid=1294, Unknown=0, NotChecked=0, Total=1722 [2018-11-07 06:31:01,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43411 states. [2018-11-07 06:31:02,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43411 to 40968. [2018-11-07 06:31:02,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40968 states. [2018-11-07 06:31:02,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40968 states to 40968 states and 58216 transitions. [2018-11-07 06:31:02,383 INFO L78 Accepts]: Start accepts. Automaton has 40968 states and 58216 transitions. Word has length 499 [2018-11-07 06:31:02,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:31:02,383 INFO L480 AbstractCegarLoop]: Abstraction has 40968 states and 58216 transitions. [2018-11-07 06:31:02,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-07 06:31:02,384 INFO L276 IsEmpty]: Start isEmpty. Operand 40968 states and 58216 transitions. [2018-11-07 06:31:02,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2018-11-07 06:31:02,477 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:31:02,478 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 06:31:02,478 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:31:02,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:31:02,479 INFO L82 PathProgramCache]: Analyzing trace with hash -97233052, now seen corresponding path program 1 times [2018-11-07 06:31:02,479 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:31:02,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:31:02,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:31:02,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:31:02,480 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:31:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:31:03,224 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 72 proven. 298 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2018-11-07 06:31:03,225 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:31:03,225 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:31:03,225 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 607 with the following transitions: [2018-11-07 06:31:03,226 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [990], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 06:31:03,233 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:31:03,233 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:31:04,101 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:31:04,101 INFO L272 AbstractInterpreter]: Visited 286 different actions 852 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-07 06:31:04,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:31:04,109 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:31:04,109 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:31:04,109 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 06:31:04,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:31:04,119 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:31:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:31:04,286 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:31:04,790 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 355 proven. 4 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2018-11-07 06:31:04,790 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:31:05,765 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 76 proven. 294 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2018-11-07 06:31:05,785 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 06:31:05,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2018-11-07 06:31:05,786 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 06:31:05,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 06:31:05,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 06:31:05,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 06:31:05,787 INFO L87 Difference]: Start difference. First operand 40968 states and 58216 transitions. Second operand 6 states. [2018-11-07 06:31:09,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:31:09,544 INFO L93 Difference]: Finished difference Result 99978 states and 144377 transitions. [2018-11-07 06:31:09,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 06:31:09,551 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 606 [2018-11-07 06:31:09,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:31:09,806 INFO L225 Difference]: With dead ends: 99978 [2018-11-07 06:31:09,806 INFO L226 Difference]: Without dead ends: 62566 [2018-11-07 06:31:09,910 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1230 GetRequests, 1216 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-11-07 06:31:09,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62566 states. [2018-11-07 06:31:10,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62566 to 62259. [2018-11-07 06:31:10,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62259 states. [2018-11-07 06:31:10,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62259 states to 62259 states and 82474 transitions. [2018-11-07 06:31:10,987 INFO L78 Accepts]: Start accepts. Automaton has 62259 states and 82474 transitions. Word has length 606 [2018-11-07 06:31:10,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:31:10,988 INFO L480 AbstractCegarLoop]: Abstraction has 62259 states and 82474 transitions. [2018-11-07 06:31:10,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 06:31:10,988 INFO L276 IsEmpty]: Start isEmpty. Operand 62259 states and 82474 transitions. [2018-11-07 06:31:11,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2018-11-07 06:31:11,103 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:31:11,103 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 06:31:11,103 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:31:11,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:31:11,104 INFO L82 PathProgramCache]: Analyzing trace with hash 2035320048, now seen corresponding path program 1 times [2018-11-07 06:31:11,104 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:31:11,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:31:11,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:31:11,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:31:11,105 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:31:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:31:11,844 WARN L179 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2018-11-07 06:31:12,349 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 455 proven. 2 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2018-11-07 06:31:12,349 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:31:12,349 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:31:12,350 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 641 with the following transitions: [2018-11-07 06:31:12,350 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [990], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1115], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1209], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 06:31:12,356 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:31:12,356 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:31:13,088 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:31:13,088 INFO L272 AbstractInterpreter]: Visited 212 different actions 1047 times. Merged at 9 different actions 34 times. Never widened. Found 8 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 06:31:13,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:31:13,101 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:31:13,101 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:31:13,101 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 06:31:13,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:31:13,111 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:31:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:31:13,288 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:31:13,645 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 455 proven. 2 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2018-11-07 06:31:13,646 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:31:13,965 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 455 proven. 2 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2018-11-07 06:31:14,236 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 06:31:14,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-07 06:31:14,237 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 06:31:14,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 06:31:14,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 06:31:14,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-07 06:31:14,239 INFO L87 Difference]: Start difference. First operand 62259 states and 82474 transitions. Second operand 9 states. [2018-11-07 06:31:23,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:31:23,496 INFO L93 Difference]: Finished difference Result 126190 states and 178923 transitions. [2018-11-07 06:31:23,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 06:31:23,497 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 640 [2018-11-07 06:31:23,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:31:23,815 INFO L225 Difference]: With dead ends: 126190 [2018-11-07 06:31:23,816 INFO L226 Difference]: Without dead ends: 66396 [2018-11-07 06:31:24,075 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1311 GetRequests, 1288 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2018-11-07 06:31:24,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66396 states. [2018-11-07 06:31:25,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66396 to 63749. [2018-11-07 06:31:25,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63749 states. [2018-11-07 06:31:25,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63749 states to 63749 states and 77769 transitions. [2018-11-07 06:31:25,270 INFO L78 Accepts]: Start accepts. Automaton has 63749 states and 77769 transitions. Word has length 640 [2018-11-07 06:31:25,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:31:25,271 INFO L480 AbstractCegarLoop]: Abstraction has 63749 states and 77769 transitions. [2018-11-07 06:31:25,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 06:31:25,272 INFO L276 IsEmpty]: Start isEmpty. Operand 63749 states and 77769 transitions. [2018-11-07 06:31:25,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2018-11-07 06:31:25,369 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:31:25,369 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 06:31:25,370 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:31:25,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:31:25,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1801807305, now seen corresponding path program 1 times [2018-11-07 06:31:25,370 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:31:25,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:31:25,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:31:25,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:31:25,372 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:31:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:31:26,545 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-07 06:31:27,739 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 249 proven. 521 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-11-07 06:31:27,740 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:31:27,740 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:31:27,740 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 682 with the following transitions: [2018-11-07 06:31:27,740 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1115], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1175], [1176], [1180], [1191], [1202], [1206], [1209], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 06:31:27,744 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:31:27,745 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:31:28,443 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:31:28,443 INFO L272 AbstractInterpreter]: Visited 212 different actions 1045 times. Merged at 9 different actions 32 times. Never widened. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-07 06:31:28,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:31:28,451 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:31:28,451 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:31:28,451 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 06:31:28,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:31:28,459 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:31:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:31:28,653 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:31:29,739 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 622 proven. 126 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-11-07 06:31:29,739 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:31:30,879 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 75 proven. 695 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-11-07 06:31:30,900 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 06:31:30,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 18 [2018-11-07 06:31:30,900 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 06:31:30,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-07 06:31:30,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-07 06:31:30,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2018-11-07 06:31:30,902 INFO L87 Difference]: Start difference. First operand 63749 states and 77769 transitions. Second operand 13 states. [2018-11-07 06:31:44,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:31:44,969 INFO L93 Difference]: Finished difference Result 144369 states and 174909 transitions. [2018-11-07 06:31:44,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-07 06:31:44,969 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 681 [2018-11-07 06:31:44,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:31:45,228 INFO L225 Difference]: With dead ends: 144369 [2018-11-07 06:31:45,228 INFO L226 Difference]: Without dead ends: 78569 [2018-11-07 06:31:45,351 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1420 GetRequests, 1377 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=427, Invalid=1295, Unknown=0, NotChecked=0, Total=1722 [2018-11-07 06:31:45,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78569 states. [2018-11-07 06:31:46,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78569 to 70181. [2018-11-07 06:31:46,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70181 states. [2018-11-07 06:31:46,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70181 states to 70181 states and 84669 transitions. [2018-11-07 06:31:46,456 INFO L78 Accepts]: Start accepts. Automaton has 70181 states and 84669 transitions. Word has length 681 [2018-11-07 06:31:46,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:31:46,457 INFO L480 AbstractCegarLoop]: Abstraction has 70181 states and 84669 transitions. [2018-11-07 06:31:46,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-07 06:31:46,457 INFO L276 IsEmpty]: Start isEmpty. Operand 70181 states and 84669 transitions. [2018-11-07 06:31:46,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2018-11-07 06:31:46,546 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:31:46,546 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 06:31:46,546 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:31:46,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:31:46,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1116726489, now seen corresponding path program 1 times [2018-11-07 06:31:46,547 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:31:46,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:31:46,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:31:46,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:31:46,548 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:31:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:31:47,176 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 303 proven. 119 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2018-11-07 06:31:47,176 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:31:47,176 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:31:47,177 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 687 with the following transitions: [2018-11-07 06:31:47,177 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [801], [804], [808], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [990], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 06:31:47,181 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:31:47,181 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:31:51,498 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:31:51,498 INFO L272 AbstractInterpreter]: Visited 288 different actions 858 times. Merged at 9 different actions 22 times. Never widened. Found 5 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-07 06:31:51,505 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:31:51,505 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:31:51,505 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:31:51,505 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 06:31:51,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:31:51,515 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:31:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:31:51,702 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:31:52,112 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 435 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2018-11-07 06:31:52,113 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:31:52,645 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked. [2018-11-07 06:31:52,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 06:31:52,666 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 3] total 7 [2018-11-07 06:31:52,666 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:31:52,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 06:31:52,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 06:31:52,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-07 06:31:52,668 INFO L87 Difference]: Start difference. First operand 70181 states and 84669 transitions. Second operand 3 states. [2018-11-07 06:31:55,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:31:55,629 INFO L93 Difference]: Finished difference Result 144685 states and 176545 transitions. [2018-11-07 06:31:55,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 06:31:55,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 686 [2018-11-07 06:31:55,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:31:55,813 INFO L225 Difference]: With dead ends: 144685 [2018-11-07 06:31:55,813 INFO L226 Difference]: Without dead ends: 53838 [2018-11-07 06:31:55,975 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1377 GetRequests, 1372 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-07 06:31:56,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53838 states. [2018-11-07 06:31:56,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53838 to 51352. [2018-11-07 06:31:56,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51352 states. [2018-11-07 06:31:56,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51352 states to 51352 states and 60755 transitions. [2018-11-07 06:31:56,874 INFO L78 Accepts]: Start accepts. Automaton has 51352 states and 60755 transitions. Word has length 686 [2018-11-07 06:31:56,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:31:56,875 INFO L480 AbstractCegarLoop]: Abstraction has 51352 states and 60755 transitions. [2018-11-07 06:31:56,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 06:31:56,875 INFO L276 IsEmpty]: Start isEmpty. Operand 51352 states and 60755 transitions. [2018-11-07 06:31:56,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2018-11-07 06:31:56,904 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:31:56,905 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 06:31:56,905 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:31:56,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:31:56,905 INFO L82 PathProgramCache]: Analyzing trace with hash -608640812, now seen corresponding path program 1 times [2018-11-07 06:31:56,906 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:31:56,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:31:56,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:31:56,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:31:56,907 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:31:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:31:57,556 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 237 proven. 82 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2018-11-07 06:31:57,557 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:31:57,557 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:31:57,557 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 689 with the following transitions: [2018-11-07 06:31:57,558 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [625], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1175], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 06:31:57,561 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:31:57,561 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:32:02,256 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:32:02,256 INFO L272 AbstractInterpreter]: Visited 286 different actions 856 times. Merged at 9 different actions 22 times. Never widened. Found 5 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-07 06:32:02,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:32:02,265 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:32:02,265 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:32:02,265 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 06:32:02,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:32:02,274 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:32:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:32:02,461 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:32:02,695 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 602 proven. 2 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-11-07 06:32:02,695 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:32:03,023 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 237 proven. 82 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2018-11-07 06:32:03,045 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 06:32:03,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-07 06:32:03,045 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 06:32:03,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 06:32:03,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 06:32:03,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-07 06:32:03,048 INFO L87 Difference]: Start difference. First operand 51352 states and 60755 transitions. Second operand 9 states. [2018-11-07 06:32:10,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:32:10,581 INFO L93 Difference]: Finished difference Result 99801 states and 120117 transitions. [2018-11-07 06:32:10,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 06:32:10,581 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 688 [2018-11-07 06:32:10,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:32:10,712 INFO L225 Difference]: With dead ends: 99801 [2018-11-07 06:32:10,712 INFO L226 Difference]: Without dead ends: 49074 [2018-11-07 06:32:10,818 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1405 GetRequests, 1383 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2018-11-07 06:32:10,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49074 states. [2018-11-07 06:32:11,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49074 to 48436. [2018-11-07 06:32:11,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48436 states. [2018-11-07 06:32:11,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48436 states to 48436 states and 54505 transitions. [2018-11-07 06:32:11,678 INFO L78 Accepts]: Start accepts. Automaton has 48436 states and 54505 transitions. Word has length 688 [2018-11-07 06:32:11,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:32:11,679 INFO L480 AbstractCegarLoop]: Abstraction has 48436 states and 54505 transitions. [2018-11-07 06:32:11,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 06:32:11,679 INFO L276 IsEmpty]: Start isEmpty. Operand 48436 states and 54505 transitions. [2018-11-07 06:32:11,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2018-11-07 06:32:11,702 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:32:11,703 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 06:32:11,703 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:32:11,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:32:11,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1879100775, now seen corresponding path program 1 times [2018-11-07 06:32:11,704 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:32:11,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:32:11,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:32:11,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:32:11,705 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:32:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:32:12,645 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 7 proven. 80 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2018-11-07 06:32:12,645 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:32:12,646 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:32:12,646 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 734 with the following transitions: [2018-11-07 06:32:12,646 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [633], [638], [640], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [990], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1167], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 06:32:12,651 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:32:12,652 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:32:13,722 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:32:13,722 INFO L272 AbstractInterpreter]: Visited 288 different actions 1432 times. Merged at 9 different actions 40 times. Widened at 1 different actions 1 times. Found 12 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-07 06:32:13,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:32:13,728 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:32:13,728 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:32:13,728 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 06:32:13,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:32:13,737 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:32:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:32:13,940 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:32:14,382 WARN L179 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 20 [2018-11-07 06:32:14,694 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2018-11-07 06:32:14,694 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:32:15,259 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2018-11-07 06:32:15,280 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 06:32:15,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 11 [2018-11-07 06:32:15,281 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:32:15,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 06:32:15,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 06:32:15,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-11-07 06:32:15,283 INFO L87 Difference]: Start difference. First operand 48436 states and 54505 transitions. Second operand 3 states. [2018-11-07 06:32:19,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:32:19,537 INFO L93 Difference]: Finished difference Result 99482 states and 113399 transitions. [2018-11-07 06:32:19,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 06:32:19,537 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 733 [2018-11-07 06:32:19,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:32:19,677 INFO L225 Difference]: With dead ends: 99482 [2018-11-07 06:32:19,677 INFO L226 Difference]: Without dead ends: 60571 [2018-11-07 06:32:19,735 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1481 GetRequests, 1469 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-11-07 06:32:19,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60571 states. [2018-11-07 06:32:20,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60571 to 58211. [2018-11-07 06:32:20,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58211 states. [2018-11-07 06:32:20,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58211 states to 58211 states and 65692 transitions. [2018-11-07 06:32:20,547 INFO L78 Accepts]: Start accepts. Automaton has 58211 states and 65692 transitions. Word has length 733 [2018-11-07 06:32:20,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:32:20,548 INFO L480 AbstractCegarLoop]: Abstraction has 58211 states and 65692 transitions. [2018-11-07 06:32:20,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 06:32:20,548 INFO L276 IsEmpty]: Start isEmpty. Operand 58211 states and 65692 transitions. [2018-11-07 06:32:20,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2018-11-07 06:32:20,573 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:32:20,573 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 06:32:20,574 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:32:20,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:32:20,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1394112708, now seen corresponding path program 1 times [2018-11-07 06:32:20,574 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:32:20,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:32:20,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:32:20,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:32:20,575 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:32:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:32:21,104 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2018-11-07 06:32:21,104 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:32:21,104 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:32:21,105 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 735 with the following transitions: [2018-11-07 06:32:21,105 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [857], [860], [864], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1175], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 06:32:21,109 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:32:21,110 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:32:25,510 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:32:25,511 INFO L272 AbstractInterpreter]: Visited 288 different actions 855 times. Merged at 9 different actions 19 times. Never widened. Found 5 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-07 06:32:25,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:32:25,515 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:32:25,515 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:32:25,516 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 06:32:25,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:32:25,525 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:32:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:32:25,728 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:32:26,024 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 483 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2018-11-07 06:32:26,025 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:32:26,504 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2018-11-07 06:32:26,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 06:32:26,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 4 [2018-11-07 06:32:26,525 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:32:26,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 06:32:26,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 06:32:26,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 06:32:26,526 INFO L87 Difference]: Start difference. First operand 58211 states and 65692 transitions. Second operand 3 states. [2018-11-07 06:32:28,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:32:28,700 INFO L93 Difference]: Finished difference Result 106887 states and 121182 transitions. [2018-11-07 06:32:28,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 06:32:28,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 734 [2018-11-07 06:32:28,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:32:28,825 INFO L225 Difference]: With dead ends: 106887 [2018-11-07 06:32:28,825 INFO L226 Difference]: Without dead ends: 58510 [2018-11-07 06:32:28,893 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1470 GetRequests, 1468 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 06:32:28,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58510 states. [2018-11-07 06:32:29,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58510 to 58202. [2018-11-07 06:32:29,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58202 states. [2018-11-07 06:32:29,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58202 states to 58202 states and 65615 transitions. [2018-11-07 06:32:29,861 INFO L78 Accepts]: Start accepts. Automaton has 58202 states and 65615 transitions. Word has length 734 [2018-11-07 06:32:29,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:32:29,862 INFO L480 AbstractCegarLoop]: Abstraction has 58202 states and 65615 transitions. [2018-11-07 06:32:29,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 06:32:29,862 INFO L276 IsEmpty]: Start isEmpty. Operand 58202 states and 65615 transitions. [2018-11-07 06:32:29,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2018-11-07 06:32:29,886 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:32:29,886 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 06:32:29,886 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:32:29,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:32:29,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1589070840, now seen corresponding path program 1 times [2018-11-07 06:32:29,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:32:29,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:32:29,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:32:29,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:32:29,888 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:32:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:32:31,026 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 589 proven. 107 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2018-11-07 06:32:31,026 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:32:31,026 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:32:31,027 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 769 with the following transitions: [2018-11-07 06:32:31,027 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1167], [1168], [1172], [1175], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 06:32:31,031 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:32:31,031 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:32:31,635 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:32:31,635 INFO L272 AbstractInterpreter]: Visited 286 different actions 861 times. Merged at 9 different actions 27 times. Never widened. Found 6 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 06:32:31,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:32:31,676 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:32:31,676 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:32:31,676 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 06:32:31,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:32:31,690 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:32:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:32:31,897 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:32:32,956 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 611 proven. 85 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2018-11-07 06:32:32,956 INFO L316 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2018-11-07 06:32:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 535 proven. 2 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2018-11-07 06:32:34,476 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 06:32:34,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 5] total 20 [2018-11-07 06:32:34,477 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 06:32:34,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-07 06:32:34,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-07 06:32:34,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2018-11-07 06:32:34,479 INFO L87 Difference]: Start difference. First operand 58202 states and 65615 transitions. Second operand 18 states. [2018-11-07 06:32:34,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-07 06:32:34,480 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 06:32:34,486 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 06:32:34,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:32:34 BoogieIcfgContainer [2018-11-07 06:32:34,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 06:32:34,488 INFO L168 Benchmark]: Toolchain (without parser) took 215124.43 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 845.8 MB in the end (delta: 569.2 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-11-07 06:32:34,489 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. [2018-11-07 06:32:34,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1262.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 108.3 MB). Peak memory consumption was 108.3 MB. Max. memory is 7.1 GB. [2018-11-07 06:32:34,490 INFO L168 Benchmark]: Boogie Procedure Inliner took 203.95 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -880.4 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2018-11-07 06:32:34,491 INFO L168 Benchmark]: Boogie Preprocessor took 192.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-11-07 06:32:34,492 INFO L168 Benchmark]: RCFGBuilder took 6128.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 284.2 MB). Peak memory consumption was 284.2 MB. Max. memory is 7.1 GB. [2018-11-07 06:32:34,492 INFO L168 Benchmark]: TraceAbstraction took 207332.29 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.9 GB in the beginning and 845.8 MB in the end (delta: 1.0 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-11-07 06:32:34,497 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 1262.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 108.3 MB). Peak memory consumption was 108.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 203.95 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -880.4 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 192.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6128.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 284.2 MB). Peak memory consumption was 284.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207332.29 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.9 GB in the beginning and 845.8 MB in the end (delta: 1.0 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 52). Cancelled while BasicCegarLoop was constructing difference of abstraction (58202states) and FLOYD_HOARE automaton (currently 2 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 207.2s OverallTime, 13 OverallIterations, 5 TraceHistogramMax, 145.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3369 SDtfs, 26335 SDslu, 4076 SDs, 0 SdLazy, 51160 SolverSat, 9369 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 106.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 13421 GetRequests, 13169 SyntacticMatches, 19 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1972 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70181occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 20.8s AbstIntTime, 11 AbstIntIterations, 1 AbstIntStrong, 0.9959189537919741 AbsIntWeakeningRatio, 0.11510791366906475 AbsIntAvgWeakeningVarsNumRemoved, 14.5 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 8.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 19728 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 21.6s InterpolantComputationTime, 13219 NumberOfCodeBlocks, 13219 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 19599 ConstructedInterpolants, 25 QuantifiedInterpolants, 46102338 SizeOfPredicates, 24 NumberOfNonLiveVariables, 8905 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 33 InterpolantComputations, 6 PerfectInterpolantSequences, 17809/21376 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown