java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label35_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 08:14:16,262 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 08:14:16,264 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 08:14:16,277 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 08:14:16,277 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 08:14:16,278 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 08:14:16,280 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 08:14:16,281 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 08:14:16,283 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 08:14:16,284 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 08:14:16,285 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 08:14:16,285 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 08:14:16,286 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 08:14:16,287 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 08:14:16,288 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 08:14:16,289 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 08:14:16,290 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 08:14:16,292 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 08:14:16,293 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 08:14:16,295 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 08:14:16,296 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 08:14:16,297 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 08:14:16,300 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 08:14:16,300 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 08:14:16,300 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 08:14:16,301 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 08:14:16,302 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 08:14:16,303 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 08:14:16,304 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 08:14:16,305 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 08:14:16,305 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 08:14:16,306 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 08:14:16,306 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 08:14:16,306 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 08:14:16,307 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 08:14:16,308 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 08:14:16,308 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 08:14:16,324 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 08:14:16,324 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 08:14:16,325 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 08:14:16,325 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 08:14:16,325 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 08:14:16,326 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 08:14:16,326 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 08:14:16,326 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 08:14:16,326 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 08:14:16,326 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 08:14:16,326 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 08:14:16,327 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 08:14:16,327 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 08:14:16,327 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 08:14:16,328 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 08:14:16,328 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 08:14:16,328 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 08:14:16,328 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 08:14:16,328 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 08:14:16,329 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 08:14:16,329 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 08:14:16,329 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 08:14:16,329 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 08:14:16,329 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 08:14:16,330 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 08:14:16,330 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 08:14:16,330 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 08:14:16,330 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 08:14:16,330 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 08:14:16,331 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 08:14:16,331 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 08:14:16,331 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 08:14:16,331 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 08:14:16,331 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 08:14:16,331 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 08:14:16,332 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 08:14:16,374 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 08:14:16,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 08:14:16,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 08:14:16,393 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 08:14:16,393 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 08:14:16,394 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label35_true-unreach-call.c [2018-10-27 08:14:16,455 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/33a01a7d6/c1e5ce228815490a90c25a89ac3e1132/FLAGe70294ba0 [2018-10-27 08:14:17,161 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 08:14:17,162 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label35_true-unreach-call.c [2018-10-27 08:14:17,189 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/33a01a7d6/c1e5ce228815490a90c25a89ac3e1132/FLAGe70294ba0 [2018-10-27 08:14:17,207 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/33a01a7d6/c1e5ce228815490a90c25a89ac3e1132 [2018-10-27 08:14:17,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 08:14:17,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 08:14:17,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 08:14:17,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 08:14:17,227 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 08:14:17,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:14:17" (1/1) ... [2018-10-27 08:14:17,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f32220e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:14:17, skipping insertion in model container [2018-10-27 08:14:17,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:14:17" (1/1) ... [2018-10-27 08:14:17,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 08:14:17,337 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 08:14:18,092 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:14:18,097 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 08:14:18,420 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:14:18,444 INFO L193 MainTranslator]: Completed translation [2018-10-27 08:14:18,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:14:18 WrapperNode [2018-10-27 08:14:18,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 08:14:18,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 08:14:18,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 08:14:18,447 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 08:14:18,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:14:18" (1/1) ... [2018-10-27 08:14:18,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:14:18" (1/1) ... [2018-10-27 08:14:18,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 08:14:18,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 08:14:18,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 08:14:18,850 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 08:14:18,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:14:18" (1/1) ... [2018-10-27 08:14:18,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:14:18" (1/1) ... [2018-10-27 08:14:18,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:14:18" (1/1) ... [2018-10-27 08:14:18,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:14:18" (1/1) ... [2018-10-27 08:14:18,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:14:18" (1/1) ... [2018-10-27 08:14:18,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:14:18" (1/1) ... [2018-10-27 08:14:19,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:14:18" (1/1) ... [2018-10-27 08:14:19,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 08:14:19,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 08:14:19,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 08:14:19,063 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 08:14:19,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:14:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 08:14:19,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 08:14:19,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 08:14:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 08:14:19,137 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 08:14:19,137 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 08:14:19,137 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 08:14:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 08:14:19,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 08:14:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 08:14:19,138 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 08:14:26,342 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 08:14:26,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:14:26 BoogieIcfgContainer [2018-10-27 08:14:26,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 08:14:26,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 08:14:26,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 08:14:26,349 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 08:14:26,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:14:17" (1/3) ... [2018-10-27 08:14:26,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72afb927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:14:26, skipping insertion in model container [2018-10-27 08:14:26,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:14:18" (2/3) ... [2018-10-27 08:14:26,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72afb927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:14:26, skipping insertion in model container [2018-10-27 08:14:26,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:14:26" (3/3) ... [2018-10-27 08:14:26,353 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label35_true-unreach-call.c [2018-10-27 08:14:26,362 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 08:14:26,371 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 08:14:26,390 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 08:14:26,441 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 08:14:26,442 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 08:14:26,442 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 08:14:26,442 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 08:14:26,442 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 08:14:26,442 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 08:14:26,442 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 08:14:26,442 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 08:14:26,481 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-27 08:14:26,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-27 08:14:26,489 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:14:26,490 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:14:26,493 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:14:26,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:14:26,498 INFO L82 PathProgramCache]: Analyzing trace with hash -524388215, now seen corresponding path program 1 times [2018-10-27 08:14:26,501 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:14:26,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:14:26,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:14:26,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:14:26,559 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:14:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:14:27,019 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-27 08:14:27,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:14:27,036 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:14:27,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 08:14:27,037 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:14:27,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 08:14:27,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 08:14:27,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:14:27,066 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-27 08:14:35,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:14:35,548 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-10-27 08:14:35,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 08:14:35,552 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-10-27 08:14:35,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:14:35,583 INFO L225 Difference]: With dead ends: 1558 [2018-10-27 08:14:35,583 INFO L226 Difference]: Without dead ends: 1114 [2018-10-27 08:14:35,595 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:14:35,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-10-27 08:14:35,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 759. [2018-10-27 08:14:35,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2018-10-27 08:14:35,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1355 transitions. [2018-10-27 08:14:35,739 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1355 transitions. Word has length 43 [2018-10-27 08:14:35,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:14:35,740 INFO L481 AbstractCegarLoop]: Abstraction has 759 states and 1355 transitions. [2018-10-27 08:14:35,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 08:14:35,740 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1355 transitions. [2018-10-27 08:14:35,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-10-27 08:14:35,755 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:14:35,755 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:14:35,756 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:14:35,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:14:35,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1605428579, now seen corresponding path program 1 times [2018-10-27 08:14:35,756 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:14:35,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:14:35,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:14:35,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:14:35,760 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:14:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:14:36,075 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:14:36,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:14:36,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 08:14:36,076 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:14:36,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 08:14:36,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 08:14:36,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:14:36,079 INFO L87 Difference]: Start difference. First operand 759 states and 1355 transitions. Second operand 4 states. [2018-10-27 08:14:45,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:14:45,285 INFO L93 Difference]: Finished difference Result 2759 states and 5140 transitions. [2018-10-27 08:14:45,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 08:14:45,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 113 [2018-10-27 08:14:45,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:14:45,302 INFO L225 Difference]: With dead ends: 2759 [2018-10-27 08:14:45,303 INFO L226 Difference]: Without dead ends: 2006 [2018-10-27 08:14:45,312 INFO L605 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 [2018-10-27 08:14:45,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2018-10-27 08:14:45,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 2003. [2018-10-27 08:14:45,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2003 states. [2018-10-27 08:14:45,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 3223 transitions. [2018-10-27 08:14:45,416 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 3223 transitions. Word has length 113 [2018-10-27 08:14:45,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:14:45,417 INFO L481 AbstractCegarLoop]: Abstraction has 2003 states and 3223 transitions. [2018-10-27 08:14:45,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 08:14:45,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 3223 transitions. [2018-10-27 08:14:45,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-27 08:14:45,431 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:14:45,431 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:14:45,431 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:14:45,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:14:45,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1328217001, now seen corresponding path program 1 times [2018-10-27 08:14:45,435 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:14:45,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:14:45,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:14:45,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:14:45,437 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:14:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:14:45,682 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:14:45,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:14:45,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 08:14:45,683 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:14:45,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 08:14:45,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 08:14:45,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 08:14:45,684 INFO L87 Difference]: Start difference. First operand 2003 states and 3223 transitions. Second operand 5 states. [2018-10-27 08:14:55,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:14:55,569 INFO L93 Difference]: Finished difference Result 6005 states and 9840 transitions. [2018-10-27 08:14:55,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 08:14:55,573 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2018-10-27 08:14:55,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:14:55,609 INFO L225 Difference]: With dead ends: 6005 [2018-10-27 08:14:55,609 INFO L226 Difference]: Without dead ends: 4008 [2018-10-27 08:14:55,623 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 08:14:55,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4008 states. [2018-10-27 08:14:55,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4008 to 3963. [2018-10-27 08:14:55,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3963 states. [2018-10-27 08:14:55,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3963 states to 3963 states and 5711 transitions. [2018-10-27 08:14:55,757 INFO L78 Accepts]: Start accepts. Automaton has 3963 states and 5711 transitions. Word has length 130 [2018-10-27 08:14:55,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:14:55,758 INFO L481 AbstractCegarLoop]: Abstraction has 3963 states and 5711 transitions. [2018-10-27 08:14:55,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 08:14:55,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3963 states and 5711 transitions. [2018-10-27 08:14:55,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2018-10-27 08:14:55,772 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:14:55,772 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-27 08:14:55,773 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:14:55,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:14:55,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1256486234, now seen corresponding path program 1 times [2018-10-27 08:14:55,773 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:14:55,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:14:55,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:14:55,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:14:55,775 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:14:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:14:56,435 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 277 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-27 08:14:56,435 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:14:56,436 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:14:56,437 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 413 with the following transitions: [2018-10-27 08:14:56,439 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [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], [648], [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], [1209], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-27 08:14:56,500 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:14:56,501 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:14:57,533 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 08:14:57,535 INFO L272 AbstractInterpreter]: Visited 207 different actions 207 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 08:14:57,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:14:57,578 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 08:14:58,687 INFO L227 lantSequenceWeakener]: Weakened 400 states. On average, predicates are now at 77.6% of their original sizes. [2018-10-27 08:14:58,689 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 08:14:58,954 INFO L415 sIntCurrentIteration]: We unified 411 AI predicates to 411 [2018-10-27 08:14:58,956 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 08:14:58,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:14:58,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-27 08:14:58,958 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:14:58,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:14:58,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:14:58,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:14:58,961 INFO L87 Difference]: Start difference. First operand 3963 states and 5711 transitions. Second operand 6 states. [2018-10-27 08:15:26,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:15:26,453 INFO L93 Difference]: Finished difference Result 8230 states and 11754 transitions. [2018-10-27 08:15:26,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 08:15:26,453 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 412 [2018-10-27 08:15:26,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:15:26,476 INFO L225 Difference]: With dead ends: 8230 [2018-10-27 08:15:26,476 INFO L226 Difference]: Without dead ends: 4273 [2018-10-27 08:15:26,493 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 412 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-27 08:15:26,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4273 states. [2018-10-27 08:15:26,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4273 to 4271. [2018-10-27 08:15:26,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4271 states. [2018-10-27 08:15:26,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4271 states to 4271 states and 6028 transitions. [2018-10-27 08:15:26,613 INFO L78 Accepts]: Start accepts. Automaton has 4271 states and 6028 transitions. Word has length 412 [2018-10-27 08:15:26,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:15:26,614 INFO L481 AbstractCegarLoop]: Abstraction has 4271 states and 6028 transitions. [2018-10-27 08:15:26,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:15:26,614 INFO L276 IsEmpty]: Start isEmpty. Operand 4271 states and 6028 transitions. [2018-10-27 08:15:26,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2018-10-27 08:15:26,631 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:15:26,632 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-27 08:15:26,632 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:15:26,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:15:26,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1332166065, now seen corresponding path program 1 times [2018-10-27 08:15:26,633 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:15:26,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:15:26,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:15:26,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:15:26,634 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:15:26,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:15:27,438 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 189 proven. 86 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-10-27 08:15:27,438 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:15:27,438 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:15:27,439 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 487 with the following transitions: [2018-10-27 08:15:27,440 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [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], [648], [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] [2018-10-27 08:15:27,450 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:15:27,450 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:15:28,088 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 08:15:28,089 INFO L272 AbstractInterpreter]: Visited 285 different actions 854 times. Merged at 8 different actions 23 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-10-27 08:15:28,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:15:28,098 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 08:15:28,098 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:15:28,098 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 08:15:28,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:15:28,108 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 08:15:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:15:28,282 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 08:15:28,672 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 277 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-27 08:15:28,673 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 08:15:29,259 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 277 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-27 08:15:29,281 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 08:15:29,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-10-27 08:15:29,282 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 08:15:29,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-27 08:15:29,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-27 08:15:29,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-10-27 08:15:29,284 INFO L87 Difference]: Start difference. First operand 4271 states and 6028 transitions. Second operand 11 states. [2018-10-27 08:15:45,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:15:45,117 INFO L93 Difference]: Finished difference Result 10838 states and 15541 transitions. [2018-10-27 08:15:45,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-27 08:15:45,117 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 486 [2018-10-27 08:15:45,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:15:45,159 INFO L225 Difference]: With dead ends: 10838 [2018-10-27 08:15:45,159 INFO L226 Difference]: Without dead ends: 6881 [2018-10-27 08:15:45,213 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1012 GetRequests, 981 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=204, Invalid=552, Unknown=0, NotChecked=0, Total=756 [2018-10-27 08:15:45,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6881 states. [2018-10-27 08:15:45,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6881 to 6846. [2018-10-27 08:15:45,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6846 states. [2018-10-27 08:15:45,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6846 states to 6846 states and 8152 transitions. [2018-10-27 08:15:45,404 INFO L78 Accepts]: Start accepts. Automaton has 6846 states and 8152 transitions. Word has length 486 [2018-10-27 08:15:45,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:15:45,405 INFO L481 AbstractCegarLoop]: Abstraction has 6846 states and 8152 transitions. [2018-10-27 08:15:45,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-27 08:15:45,406 INFO L276 IsEmpty]: Start isEmpty. Operand 6846 states and 8152 transitions. [2018-10-27 08:15:45,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2018-10-27 08:15:45,427 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:15:45,427 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 08:15:45,428 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:15:45,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:15:45,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1918811840, now seen corresponding path program 1 times [2018-10-27 08:15:45,429 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:15:45,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:15:45,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:15:45,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:15:45,434 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:15:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:15:46,485 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 236 proven. 86 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-27 08:15:46,485 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:15:46,486 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:15:46,486 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 533 with the following transitions: [2018-10-27 08:15:46,487 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [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], [648], [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], [842], [847], [849], [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] [2018-10-27 08:15:46,494 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:15:46,494 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:15:47,959 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 08:15:47,959 INFO L272 AbstractInterpreter]: Visited 287 different actions 1425 times. Merged at 8 different actions 38 times. Widened at 1 different actions 1 times. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-27 08:15:47,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:15:47,989 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 08:15:47,989 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:15:47,989 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 08:15:47,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:15:47,997 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 08:15:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:15:48,159 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 08:15:48,558 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 368 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-10-27 08:15:48,559 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 08:15:49,204 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 236 proven. 86 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-27 08:15:49,240 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 08:15:49,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-10-27 08:15:49,241 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 08:15:49,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 08:15:49,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 08:15:49,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-27 08:15:49,245 INFO L87 Difference]: Start difference. First operand 6846 states and 8152 transitions. Second operand 9 states. [2018-10-27 08:15:58,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:15:58,111 INFO L93 Difference]: Finished difference Result 18365 states and 22516 transitions. [2018-10-27 08:15:58,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-27 08:15:58,112 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 532 [2018-10-27 08:15:58,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:15:58,167 INFO L225 Difference]: With dead ends: 18365 [2018-10-27 08:15:58,167 INFO L226 Difference]: Without dead ends: 11833 [2018-10-27 08:15:58,191 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1095 GetRequests, 1072 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2018-10-27 08:15:58,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11833 states. [2018-10-27 08:15:58,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11833 to 10835. [2018-10-27 08:15:58,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10835 states. [2018-10-27 08:15:58,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10835 states to 10835 states and 12860 transitions. [2018-10-27 08:15:58,487 INFO L78 Accepts]: Start accepts. Automaton has 10835 states and 12860 transitions. Word has length 532 [2018-10-27 08:15:58,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:15:58,488 INFO L481 AbstractCegarLoop]: Abstraction has 10835 states and 12860 transitions. [2018-10-27 08:15:58,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 08:15:58,489 INFO L276 IsEmpty]: Start isEmpty. Operand 10835 states and 12860 transitions. [2018-10-27 08:15:58,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2018-10-27 08:15:58,519 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:15:58,520 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:15:58,520 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:15:58,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:15:58,521 INFO L82 PathProgramCache]: Analyzing trace with hash -449753279, now seen corresponding path program 1 times [2018-10-27 08:15:58,521 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:15:58,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:15:58,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:15:58,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:15:58,522 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:15:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:15:59,325 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2018-10-27 08:15:59,327 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:15:59,327 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 08:15:59,327 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:15:59,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 08:15:59,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 08:15:59,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 08:15:59,329 INFO L87 Difference]: Start difference. First operand 10835 states and 12860 transitions. Second operand 3 states. [2018-10-27 08:16:03,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:16:03,146 INFO L93 Difference]: Finished difference Result 31402 states and 38233 transitions. [2018-10-27 08:16:03,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 08:16:03,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 554 [2018-10-27 08:16:03,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:16:03,213 INFO L225 Difference]: With dead ends: 31402 [2018-10-27 08:16:03,213 INFO L226 Difference]: Without dead ends: 15926 [2018-10-27 08:16:03,260 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 08:16:03,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15926 states. [2018-10-27 08:16:03,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15926 to 15632. [2018-10-27 08:16:03,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15632 states. [2018-10-27 08:16:03,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15632 states to 15632 states and 17572 transitions. [2018-10-27 08:16:03,564 INFO L78 Accepts]: Start accepts. Automaton has 15632 states and 17572 transitions. Word has length 554 [2018-10-27 08:16:03,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:16:03,566 INFO L481 AbstractCegarLoop]: Abstraction has 15632 states and 17572 transitions. [2018-10-27 08:16:03,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 08:16:03,566 INFO L276 IsEmpty]: Start isEmpty. Operand 15632 states and 17572 transitions. [2018-10-27 08:16:03,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2018-10-27 08:16:03,615 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:16:03,616 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-10-27 08:16:03,616 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:16:03,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:16:03,617 INFO L82 PathProgramCache]: Analyzing trace with hash 246757196, now seen corresponding path program 1 times [2018-10-27 08:16:03,617 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:16:03,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:16:03,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:16:03,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:16:03,619 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:16:03,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:16:04,598 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 380 proven. 105 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2018-10-27 08:16:04,599 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:16:04,599 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:16:04,599 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 650 with the following transitions: [2018-10-27 08:16:04,600 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [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], [738], [739], [743], [747], [751], [755], [759], [762], [763], [766], [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] [2018-10-27 08:16:04,606 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:16:04,607 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:16:09,115 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 08:16:09,115 INFO L272 AbstractInterpreter]: Visited 286 different actions 859 times. Merged at 9 different actions 25 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-10-27 08:16:09,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:16:09,147 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 08:16:09,147 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:16:09,148 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 08:16:09,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:16:09,155 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 08:16:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:16:09,345 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 08:16:09,582 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 651 proven. 2 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2018-10-27 08:16:09,582 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 08:16:10,165 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 380 proven. 105 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2018-10-27 08:16:10,186 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 08:16:10,187 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-10-27 08:16:10,187 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 08:16:10,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 08:16:10,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 08:16:10,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-27 08:16:10,189 INFO L87 Difference]: Start difference. First operand 15632 states and 17572 transitions. Second operand 9 states. [2018-10-27 08:16:18,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:16:18,587 INFO L93 Difference]: Finished difference Result 34601 states and 39185 transitions. [2018-10-27 08:16:18,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-27 08:16:18,588 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 649 [2018-10-27 08:16:18,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:16:18,661 INFO L225 Difference]: With dead ends: 34601 [2018-10-27 08:16:18,661 INFO L226 Difference]: Without dead ends: 19283 [2018-10-27 08:16:18,696 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1327 GetRequests, 1305 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2018-10-27 08:16:18,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19283 states. [2018-10-27 08:16:18,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19283 to 18983. [2018-10-27 08:16:18,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18983 states. [2018-10-27 08:16:19,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18983 states to 18983 states and 21029 transitions. [2018-10-27 08:16:19,039 INFO L78 Accepts]: Start accepts. Automaton has 18983 states and 21029 transitions. Word has length 649 [2018-10-27 08:16:19,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:16:19,040 INFO L481 AbstractCegarLoop]: Abstraction has 18983 states and 21029 transitions. [2018-10-27 08:16:19,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 08:16:19,040 INFO L276 IsEmpty]: Start isEmpty. Operand 18983 states and 21029 transitions. [2018-10-27 08:16:19,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2018-10-27 08:16:19,074 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:16:19,075 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:16:19,075 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:16:19,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:16:19,076 INFO L82 PathProgramCache]: Analyzing trace with hash -570184843, now seen corresponding path program 1 times [2018-10-27 08:16:19,076 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:16:19,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:16:19,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:16:19,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:16:19,077 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:16:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:16:19,866 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 491 proven. 2 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-10-27 08:16:19,866 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:16:19,866 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:16:19,867 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 664 with the following transitions: [2018-10-27 08:16:19,867 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [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], [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], [1021], [1024], [1028], [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] [2018-10-27 08:16:19,874 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:16:19,874 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:16:25,043 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 08:16:25,044 INFO L272 AbstractInterpreter]: Visited 288 different actions 1138 times. Merged at 9 different actions 27 times. Never widened. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-27 08:16:25,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:16:25,050 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 08:16:25,050 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:16:25,050 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 08:16:25,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:16:25,057 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 08:16:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:16:25,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 08:16:25,611 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2018-10-27 08:16:25,612 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 08:16:26,165 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2018-10-27 08:16:26,197 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:16:26,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 6 [2018-10-27 08:16:26,198 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:16:26,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 08:16:26,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 08:16:26,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:16:26,199 INFO L87 Difference]: Start difference. First operand 18983 states and 21029 transitions. Second operand 3 states. [2018-10-27 08:16:28,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:16:28,704 INFO L93 Difference]: Finished difference Result 47308 states and 53235 transitions. [2018-10-27 08:16:28,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 08:16:28,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 663 [2018-10-27 08:16:28,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:16:29,008 INFO L225 Difference]: With dead ends: 47308 [2018-10-27 08:16:29,008 INFO L226 Difference]: Without dead ends: 28639 [2018-10-27 08:16:29,049 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1330 GetRequests, 1326 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:16:29,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28639 states. [2018-10-27 08:16:29,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28639 to 28619. [2018-10-27 08:16:29,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28619 states. [2018-10-27 08:16:29,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28619 states to 28619 states and 31663 transitions. [2018-10-27 08:16:29,522 INFO L78 Accepts]: Start accepts. Automaton has 28619 states and 31663 transitions. Word has length 663 [2018-10-27 08:16:29,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:16:29,524 INFO L481 AbstractCegarLoop]: Abstraction has 28619 states and 31663 transitions. [2018-10-27 08:16:29,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 08:16:29,524 INFO L276 IsEmpty]: Start isEmpty. Operand 28619 states and 31663 transitions. [2018-10-27 08:16:29,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2018-10-27 08:16:29,578 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:16:29,579 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-10-27 08:16:29,579 INFO L424 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:16:29,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:16:29,580 INFO L82 PathProgramCache]: Analyzing trace with hash -369582495, now seen corresponding path program 1 times [2018-10-27 08:16:29,580 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:16:29,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:16:29,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:16:29,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:16:29,581 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:16:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:16:30,103 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 160 proven. 2 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2018-10-27 08:16:30,103 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:16:30,104 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:16:30,104 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 666 with the following transitions: [2018-10-27 08:16:30,105 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [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], [738], [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], [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] [2018-10-27 08:16:30,112 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:16:30,112 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:16:34,219 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 08:16:34,219 INFO L272 AbstractInterpreter]: Visited 288 different actions 861 times. Merged at 9 different actions 25 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-10-27 08:16:34,244 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:16:34,244 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 08:16:34,244 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:16:34,244 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 08:16:34,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:16:34,256 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 08:16:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:16:34,438 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 08:16:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 429 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2018-10-27 08:16:34,654 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 08:16:35,147 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 160 proven. 2 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2018-10-27 08:16:35,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-27 08:16:35,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 4 [2018-10-27 08:16:35,169 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:16:35,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 08:16:35,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 08:16:35,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:16:35,171 INFO L87 Difference]: Start difference. First operand 28619 states and 31663 transitions. Second operand 3 states. [2018-10-27 08:16:37,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:16:37,461 INFO L93 Difference]: Finished difference Result 57168 states and 63257 transitions. [2018-10-27 08:16:37,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 08:16:37,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 665 [2018-10-27 08:16:37,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:16:37,531 INFO L225 Difference]: With dead ends: 57168 [2018-10-27 08:16:37,531 INFO L226 Difference]: Without dead ends: 28921 [2018-10-27 08:16:37,581 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1332 GetRequests, 1330 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:16:37,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28921 states. [2018-10-27 08:16:37,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28921 to 28613. [2018-10-27 08:16:37,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28613 states. [2018-10-27 08:16:38,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28613 states to 28613 states and 31643 transitions. [2018-10-27 08:16:38,040 INFO L78 Accepts]: Start accepts. Automaton has 28613 states and 31643 transitions. Word has length 665 [2018-10-27 08:16:38,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:16:38,041 INFO L481 AbstractCegarLoop]: Abstraction has 28613 states and 31643 transitions. [2018-10-27 08:16:38,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 08:16:38,041 INFO L276 IsEmpty]: Start isEmpty. Operand 28613 states and 31643 transitions. [2018-10-27 08:16:38,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2018-10-27 08:16:38,076 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:16:38,077 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 08:16:38,077 INFO L424 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:16:38,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:16:38,078 INFO L82 PathProgramCache]: Analyzing trace with hash 529605645, now seen corresponding path program 1 times [2018-10-27 08:16:38,078 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:16:38,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:16:38,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:16:38,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:16:38,079 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:16:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:16:38,768 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 466 proven. 2 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2018-10-27 08:16:38,768 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:16:38,768 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:16:38,768 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 706 with the following transitions: [2018-10-27 08:16:38,769 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [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], [738], [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], [1060], [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] [2018-10-27 08:16:38,775 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:16:38,775 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:16:43,203 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 08:16:43,203 INFO L272 AbstractInterpreter]: Visited 286 different actions 862 times. Merged at 9 different actions 28 times. Never widened. Found 6 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-27 08:16:43,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:16:43,211 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 08:16:43,211 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:16:43,211 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 08:16:43,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:16:43,220 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 08:16:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:16:43,417 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 08:16:43,801 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 466 proven. 2 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2018-10-27 08:16:43,801 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 08:16:44,285 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 466 proven. 2 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2018-10-27 08:16:44,306 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 08:16:44,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-10-27 08:16:44,307 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 08:16:44,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 08:16:44,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 08:16:44,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-10-27 08:16:44,310 INFO L87 Difference]: Start difference. First operand 28613 states and 31643 transitions. Second operand 8 states. [2018-10-27 08:16:49,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:16:49,618 INFO L93 Difference]: Finished difference Result 66187 states and 74581 transitions. [2018-10-27 08:16:49,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 08:16:49,618 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 705 [2018-10-27 08:16:49,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:16:49,681 INFO L225 Difference]: With dead ends: 66187 [2018-10-27 08:16:49,681 INFO L226 Difference]: Without dead ends: 28817 [2018-10-27 08:16:49,743 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1419 GetRequests, 1408 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-27 08:16:49,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28817 states. [2018-10-27 08:16:50,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28817 to 26466. [2018-10-27 08:16:50,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26466 states. [2018-10-27 08:16:50,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26466 states to 26466 states and 28749 transitions. [2018-10-27 08:16:50,156 INFO L78 Accepts]: Start accepts. Automaton has 26466 states and 28749 transitions. Word has length 705 [2018-10-27 08:16:50,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:16:50,156 INFO L481 AbstractCegarLoop]: Abstraction has 26466 states and 28749 transitions. [2018-10-27 08:16:50,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 08:16:50,157 INFO L276 IsEmpty]: Start isEmpty. Operand 26466 states and 28749 transitions. [2018-10-27 08:16:50,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 742 [2018-10-27 08:16:50,179 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:16:50,180 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:16:50,180 INFO L424 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:16:50,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:16:50,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1772960059, now seen corresponding path program 1 times [2018-10-27 08:16:50,181 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:16:50,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:16:50,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:16:50,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:16:50,182 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:16:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:16:51,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 725 proven. 68 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2018-10-27 08:16:51,007 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:16:51,007 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:16:51,007 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 742 with the following transitions: [2018-10-27 08:16:51,008 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [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], [660], [663], [667], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [738], [739], [743], [747], [751], [755], [759], [762], [763], [766], [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] [2018-10-27 08:16:51,012 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:16:51,012 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:16:55,378 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 08:16:55,379 INFO L272 AbstractInterpreter]: Visited 289 different actions 864 times. Merged at 9 different actions 25 times. Never widened. Found 6 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-27 08:16:55,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:16:55,389 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 08:16:55,389 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:16:55,389 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 08:16:55,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:16:55,403 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 08:16:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:16:55,621 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 08:16:55,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 1003 trivial. 0 not checked. [2018-10-27 08:16:55,869 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 08:16:56,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 1003 trivial. 0 not checked. [2018-10-27 08:16:56,248 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:16:56,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 4 [2018-10-27 08:16:56,249 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:16:56,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 08:16:56,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 08:16:56,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:16:56,250 INFO L87 Difference]: Start difference. First operand 26466 states and 28749 transitions. Second operand 3 states. [2018-10-27 08:17:00,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:17:00,560 INFO L93 Difference]: Finished difference Result 55023 states and 60067 transitions. [2018-10-27 08:17:00,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 08:17:00,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 741 [2018-10-27 08:17:00,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:17:00,603 INFO L225 Difference]: With dead ends: 55023 [2018-10-27 08:17:00,604 INFO L226 Difference]: Without dead ends: 28929 [2018-10-27 08:17:00,637 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1490 GetRequests, 1484 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:17:00,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28929 states. [2018-10-27 08:17:00,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28929 to 28313. [2018-10-27 08:17:00,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28313 states. [2018-10-27 08:17:00,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28313 states to 28313 states and 30647 transitions. [2018-10-27 08:17:00,984 INFO L78 Accepts]: Start accepts. Automaton has 28313 states and 30647 transitions. Word has length 741 [2018-10-27 08:17:00,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:17:00,985 INFO L481 AbstractCegarLoop]: Abstraction has 28313 states and 30647 transitions. [2018-10-27 08:17:00,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 08:17:00,986 INFO L276 IsEmpty]: Start isEmpty. Operand 28313 states and 30647 transitions. [2018-10-27 08:17:01,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 935 [2018-10-27 08:17:01,021 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:17:01,021 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:17:01,022 INFO L424 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:17:01,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:17:01,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1401930720, now seen corresponding path program 1 times [2018-10-27 08:17:01,022 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:17:01,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:17:01,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:17:01,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:17:01,024 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:17:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:17:02,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1845 backedges. 565 proven. 215 refuted. 0 times theorem prover too weak. 1065 trivial. 0 not checked. [2018-10-27 08:17:02,054 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:17:02,054 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:17:02,054 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 935 with the following transitions: [2018-10-27 08:17:02,055 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [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], [660], [663], [667], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [738], [739], [743], [747], [751], [755], [759], [762], [763], [766], [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], [1163], [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] [2018-10-27 08:17:02,059 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:17:02,059 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:17:06,276 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 08:17:06,277 INFO L272 AbstractInterpreter]: Visited 290 different actions 867 times. Merged at 10 different actions 25 times. Never widened. Found 7 fixpoints after 4 different actions. Largest state had 24 variables. [2018-10-27 08:17:06,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:17:06,289 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 08:17:06,289 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:17:06,290 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 08:17:06,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:17:06,297 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 08:17:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:17:06,551 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 08:17:07,236 WARN L179 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 28 [2018-10-27 08:17:08,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1845 backedges. 808 proven. 34 refuted. 0 times theorem prover too weak. 1003 trivial. 0 not checked. [2018-10-27 08:17:08,259 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 08:17:09,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1845 backedges. 834 proven. 8 refuted. 0 times theorem prover too weak. 1003 trivial. 0 not checked. [2018-10-27 08:17:09,318 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 08:17:09,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 14 [2018-10-27 08:17:09,319 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 08:17:09,320 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 08:17:09,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 08:17:09,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-10-27 08:17:09,321 INFO L87 Difference]: Start difference. First operand 28313 states and 30647 transitions. Second operand 10 states. [2018-10-27 08:17:35,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:17:35,216 INFO L93 Difference]: Finished difference Result 81388 states and 87820 transitions. [2018-10-27 08:17:35,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-10-27 08:17:35,217 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 934 [2018-10-27 08:17:35,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:17:35,218 INFO L225 Difference]: With dead ends: 81388 [2018-10-27 08:17:35,218 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 08:17:35,314 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1937 GetRequests, 1891 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=499, Invalid=1757, Unknown=0, NotChecked=0, Total=2256 [2018-10-27 08:17:35,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 08:17:35,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 08:17:35,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 08:17:35,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 08:17:35,316 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 934 [2018-10-27 08:17:35,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:17:35,316 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 08:17:35,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 08:17:35,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 08:17:35,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 08:17:35,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 08:17:36,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,159 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,175 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,200 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,225 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,230 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,234 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,271 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,276 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,388 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,407 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,416 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,460 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,477 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,502 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,541 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,625 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,693 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,743 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,780 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,794 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,829 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,831 WARN L179 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 443 DAG size of output: 263 [2018-10-27 08:17:36,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,850 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,855 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,859 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,868 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,875 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,889 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,889 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,905 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,909 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,913 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,943 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,986 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:36,987 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,023 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,029 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,058 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,114 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,128 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,152 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,214 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,223 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,244 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,267 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,283 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,286 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,339 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,392 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,393 WARN L179 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 440 DAG size of output: 265 [2018-10-27 08:17:37,504 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,552 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,618 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,721 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,936 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:37,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:38,014 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:38,059 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:38,116 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:38,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:38,143 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:38,149 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:38,162 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 08:17:38,383 WARN L179 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 17 [2018-10-27 08:17:46,611 WARN L179 SmtUtils]: Spent 8.09 s on a formula simplification. DAG size of input: 504 DAG size of output: 148 [2018-10-27 08:17:56,117 WARN L179 SmtUtils]: Spent 9.46 s on a formula simplification. DAG size of input: 656 DAG size of output: 159 [2018-10-27 08:17:57,855 WARN L179 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 260 DAG size of output: 108 [2018-10-27 08:17:59,516 WARN L179 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 263 DAG size of output: 108 Received shutdown request... [2018-10-27 08:17:59,640 WARN L187 SmtUtils]: Removed 2 from assertion stack [2018-10-27 08:17:59,641 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-10-27 08:17:59,642 INFO L168 Benchmark]: Toolchain (without parser) took 222423.33 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 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-10-27 08:17:59,643 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 08:17:59,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1225.03 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. [2018-10-27 08:17:59,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 402.58 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.3 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -834.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2018-10-27 08:17:59,645 INFO L168 Benchmark]: Boogie Preprocessor took 213.03 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2018-10-27 08:17:59,646 INFO L168 Benchmark]: RCFGBuilder took 7280.21 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 309.5 MB). Peak memory consumption was 309.5 MB. Max. memory is 7.1 GB. [2018-10-27 08:17:59,646 INFO L168 Benchmark]: TraceAbstraction took 213297.13 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 3.5 GB in the end (delta: -1.8 GB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-27 08:17:59,651 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1225.03 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 402.58 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.3 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -834.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 213.03 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7280.21 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 309.5 MB). Peak memory consumption was 309.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213297.13 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 3.5 GB in the end (delta: -1.8 GB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 115]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 576. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown