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/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:54:01,344 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:54:01,346 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:54:01,361 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:54:01,362 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:54:01,363 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:54:01,364 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:54:01,367 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:54:01,368 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:54:01,369 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:54:01,374 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:54:01,374 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:54:01,375 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:54:01,378 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:54:01,387 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:54:01,388 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:54:01,389 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:54:01,392 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:54:01,395 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:54:01,397 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:54:01,400 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:54:01,403 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:54:01,408 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:54:01,408 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:54:01,409 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:54:01,410 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:54:01,411 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:54:01,413 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:54:01,414 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:54:01,415 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:54:01,415 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:54:01,415 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 14:54:01,420 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 14:54:01,434 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:54:01,434 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:54:01,435 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:54:01,436 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:54:01,439 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:54:01,439 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:54:01,440 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:54:01,440 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:54:01,440 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:54:01,440 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:54:01,440 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:54:01,441 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:54:01,441 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:54:01,441 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:54:01,441 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:54:01,441 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:54:01,442 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:54:01,442 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:54:01,442 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:54:01,442 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:54:01,442 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:54:01,444 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:54:01,444 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:54:01,444 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:54:01,444 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:54:01,445 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:54:01,445 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:54:01,445 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:54:01,507 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:54:01,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:54:01,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:54:01,531 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:54:01,531 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:54:01,532 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label14_true-unreach-call.c [2018-10-24 14:54:01,590 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/271226e2c/7ae8c29c72d94a71a9681ff0089827cb/FLAG9c1e06748 [2018-10-24 14:54:02,316 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:54:02,317 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label14_true-unreach-call.c [2018-10-24 14:54:02,339 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/271226e2c/7ae8c29c72d94a71a9681ff0089827cb/FLAG9c1e06748 [2018-10-24 14:54:02,360 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/271226e2c/7ae8c29c72d94a71a9681ff0089827cb [2018-10-24 14:54:02,371 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:54:02,374 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:54:02,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:54:02,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:54:02,379 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:54:02,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:54:02" (1/1) ... [2018-10-24 14:54:02,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a25570f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:02, skipping insertion in model container [2018-10-24 14:54:02,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:54:02" (1/1) ... [2018-10-24 14:54:02,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:54:02,490 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:54:03,168 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:54:03,175 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:54:03,443 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:54:03,466 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:54:03,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:03 WrapperNode [2018-10-24 14:54:03,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:54:03,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:54:03,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:54:03,468 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:54:03,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:03" (1/1) ... [2018-10-24 14:54:03,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:03" (1/1) ... [2018-10-24 14:54:03,783 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:54:03,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:54:03,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:54:03,784 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:54:03,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:03" (1/1) ... [2018-10-24 14:54:03,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:03" (1/1) ... [2018-10-24 14:54:03,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:03" (1/1) ... [2018-10-24 14:54:03,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:03" (1/1) ... [2018-10-24 14:54:03,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:03" (1/1) ... [2018-10-24 14:54:03,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:03" (1/1) ... [2018-10-24 14:54:03,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:03" (1/1) ... [2018-10-24 14:54:03,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:54:03,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:54:03,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:54:03,898 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:54:03,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:54:03,975 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:54:03,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:54:03,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:54:09,176 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:54:09,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:54:09 BoogieIcfgContainer [2018-10-24 14:54:09,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:54:09,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:54:09,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:54:09,182 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:54:09,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:54:02" (1/3) ... [2018-10-24 14:54:09,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387cdbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:54:09, skipping insertion in model container [2018-10-24 14:54:09,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:54:03" (2/3) ... [2018-10-24 14:54:09,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387cdbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:54:09, skipping insertion in model container [2018-10-24 14:54:09,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:54:09" (3/3) ... [2018-10-24 14:54:09,187 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label14_true-unreach-call.c [2018-10-24 14:54:09,196 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:54:09,206 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:54:09,225 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:54:09,276 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:54:09,277 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:54:09,277 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:54:09,278 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:54:09,278 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:54:09,278 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:54:09,278 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:54:09,278 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:54:09,278 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:54:09,303 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states. [2018-10-24 14:54:09,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-10-24 14:54:09,321 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:09,322 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:09,324 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:09,329 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:09,330 INFO L82 PathProgramCache]: Analyzing trace with hash -102357910, now seen corresponding path program 1 times [2018-10-24 14:54:09,331 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:09,332 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:09,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:09,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:09,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:10,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:54:10,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:10,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:54:10,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:54:10,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:54:10,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:10,425 INFO L87 Difference]: Start difference. First operand 303 states. Second operand 4 states. [2018-10-24 14:54:14,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:14,047 INFO L93 Difference]: Finished difference Result 1072 states and 1917 transitions. [2018-10-24 14:54:14,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:54:14,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 171 [2018-10-24 14:54:14,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:14,077 INFO L225 Difference]: With dead ends: 1072 [2018-10-24 14:54:14,077 INFO L226 Difference]: Without dead ends: 762 [2018-10-24 14:54:14,082 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:14,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2018-10-24 14:54:14,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 518. [2018-10-24 14:54:14,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2018-10-24 14:54:14,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 855 transitions. [2018-10-24 14:54:14,180 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 855 transitions. Word has length 171 [2018-10-24 14:54:14,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:14,181 INFO L481 AbstractCegarLoop]: Abstraction has 518 states and 855 transitions. [2018-10-24 14:54:14,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:54:14,181 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 855 transitions. [2018-10-24 14:54:14,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-10-24 14:54:14,190 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:14,191 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:14,191 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:14,192 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:14,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1343385639, now seen corresponding path program 1 times [2018-10-24 14:54:14,192 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:14,192 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:14,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:14,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:14,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:14,476 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:54:14,477 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:14,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:54:14,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:54:14,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:54:14,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:14,480 INFO L87 Difference]: Start difference. First operand 518 states and 855 transitions. Second operand 4 states. [2018-10-24 14:54:17,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:17,383 INFO L93 Difference]: Finished difference Result 1918 states and 3253 transitions. [2018-10-24 14:54:17,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:54:17,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2018-10-24 14:54:17,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:17,392 INFO L225 Difference]: With dead ends: 1918 [2018-10-24 14:54:17,392 INFO L226 Difference]: Without dead ends: 1402 [2018-10-24 14:54:17,395 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:17,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2018-10-24 14:54:17,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 933. [2018-10-24 14:54:17,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2018-10-24 14:54:17,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1472 transitions. [2018-10-24 14:54:17,430 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1472 transitions. Word has length 177 [2018-10-24 14:54:17,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:17,430 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1472 transitions. [2018-10-24 14:54:17,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:54:17,430 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1472 transitions. [2018-10-24 14:54:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-10-24 14:54:17,434 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:17,434 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:17,435 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:17,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:17,435 INFO L82 PathProgramCache]: Analyzing trace with hash -567522293, now seen corresponding path program 1 times [2018-10-24 14:54:17,435 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:17,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:17,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:17,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:17,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:17,539 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:54:17,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:17,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:54:17,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:54:17,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:54:17,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:17,541 INFO L87 Difference]: Start difference. First operand 933 states and 1472 transitions. Second operand 3 states. [2018-10-24 14:54:21,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:21,115 INFO L93 Difference]: Finished difference Result 2699 states and 4315 transitions. [2018-10-24 14:54:21,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:54:21,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2018-10-24 14:54:21,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:21,126 INFO L225 Difference]: With dead ends: 2699 [2018-10-24 14:54:21,126 INFO L226 Difference]: Without dead ends: 1768 [2018-10-24 14:54:21,129 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:21,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2018-10-24 14:54:21,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1751. [2018-10-24 14:54:21,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1751 states. [2018-10-24 14:54:21,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2699 transitions. [2018-10-24 14:54:21,167 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2699 transitions. Word has length 180 [2018-10-24 14:54:21,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:21,167 INFO L481 AbstractCegarLoop]: Abstraction has 1751 states and 2699 transitions. [2018-10-24 14:54:21,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:54:21,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2699 transitions. [2018-10-24 14:54:21,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-10-24 14:54:21,172 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:21,173 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:54:21,173 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:21,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:21,173 INFO L82 PathProgramCache]: Analyzing trace with hash -630849601, now seen corresponding path program 1 times [2018-10-24 14:54:21,174 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:21,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:21,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:21,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:21,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:21,349 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-24 14:54:21,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:21,350 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:54:21,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:54:21,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:54:21,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:21,351 INFO L87 Difference]: Start difference. First operand 1751 states and 2699 transitions. Second operand 3 states. [2018-10-24 14:54:22,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:22,655 INFO L93 Difference]: Finished difference Result 4329 states and 6639 transitions. [2018-10-24 14:54:22,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:54:22,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2018-10-24 14:54:22,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:22,670 INFO L225 Difference]: With dead ends: 4329 [2018-10-24 14:54:22,670 INFO L226 Difference]: Without dead ends: 2580 [2018-10-24 14:54:22,674 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:22,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2018-10-24 14:54:22,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2579. [2018-10-24 14:54:22,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2579 states. [2018-10-24 14:54:22,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2579 states to 2579 states and 3884 transitions. [2018-10-24 14:54:22,731 INFO L78 Accepts]: Start accepts. Automaton has 2579 states and 3884 transitions. Word has length 188 [2018-10-24 14:54:22,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:22,731 INFO L481 AbstractCegarLoop]: Abstraction has 2579 states and 3884 transitions. [2018-10-24 14:54:22,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:54:22,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2579 states and 3884 transitions. [2018-10-24 14:54:22,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-10-24 14:54:22,738 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:22,739 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2018-10-24 14:54:22,739 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:22,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:22,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1925347994, now seen corresponding path program 1 times [2018-10-24 14:54:22,740 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:22,740 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:22,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:22,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:22,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:22,949 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-24 14:54:22,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:22,950 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:54:22,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:54:22,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:54:22,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:22,951 INFO L87 Difference]: Start difference. First operand 2579 states and 3884 transitions. Second operand 3 states. [2018-10-24 14:54:23,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:23,815 INFO L93 Difference]: Finished difference Result 7713 states and 11623 transitions. [2018-10-24 14:54:23,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:54:23,816 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2018-10-24 14:54:23,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:23,845 INFO L225 Difference]: With dead ends: 7713 [2018-10-24 14:54:23,845 INFO L226 Difference]: Without dead ends: 5136 [2018-10-24 14:54:23,850 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:23,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5136 states. [2018-10-24 14:54:23,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5136 to 5133. [2018-10-24 14:54:23,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5133 states. [2018-10-24 14:54:23,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 7720 transitions. [2018-10-24 14:54:23,956 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 7720 transitions. Word has length 194 [2018-10-24 14:54:23,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:23,956 INFO L481 AbstractCegarLoop]: Abstraction has 5133 states and 7720 transitions. [2018-10-24 14:54:23,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:54:23,957 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 7720 transitions. [2018-10-24 14:54:23,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-10-24 14:54:23,968 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:23,968 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2018-10-24 14:54:23,969 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:23,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:23,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1582974829, now seen corresponding path program 1 times [2018-10-24 14:54:23,969 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:23,969 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:23,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:23,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:23,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-10-24 14:54:24,295 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:54:24,296 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2018-10-24 14:54:24,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:24,466 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:54:24,540 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-10-24 14:54:24,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:54:24,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2018-10-24 14:54:24,577 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:54:24,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:54:24,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:24,578 INFO L87 Difference]: Start difference. First operand 5133 states and 7720 transitions. Second operand 4 states. [2018-10-24 14:54:27,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:27,245 INFO L93 Difference]: Finished difference Result 20487 states and 30826 transitions. [2018-10-24 14:54:27,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:54:27,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 203 [2018-10-24 14:54:27,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:27,329 INFO L225 Difference]: With dead ends: 20487 [2018-10-24 14:54:27,329 INFO L226 Difference]: Without dead ends: 15356 [2018-10-24 14:54:27,340 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:27,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15356 states. [2018-10-24 14:54:27,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15356 to 10229. [2018-10-24 14:54:27,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10229 states. [2018-10-24 14:54:27,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10229 states to 10229 states and 15363 transitions. [2018-10-24 14:54:27,587 INFO L78 Accepts]: Start accepts. Automaton has 10229 states and 15363 transitions. Word has length 203 [2018-10-24 14:54:27,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:27,587 INFO L481 AbstractCegarLoop]: Abstraction has 10229 states and 15363 transitions. [2018-10-24 14:54:27,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:54:27,588 INFO L276 IsEmpty]: Start isEmpty. Operand 10229 states and 15363 transitions. [2018-10-24 14:54:27,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-10-24 14:54:27,605 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:27,605 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:27,606 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:27,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:27,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1172652270, now seen corresponding path program 1 times [2018-10-24 14:54:27,606 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:27,606 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:27,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:27,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:27,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:28,166 WARN L179 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 14:54:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:54:28,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:28,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:54:28,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:54:28,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:54:28,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:54:28,213 INFO L87 Difference]: Start difference. First operand 10229 states and 15363 transitions. Second operand 5 states. [2018-10-24 14:54:31,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:31,063 INFO L93 Difference]: Finished difference Result 23029 states and 35010 transitions. [2018-10-24 14:54:31,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:54:31,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 211 [2018-10-24 14:54:31,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:31,217 INFO L225 Difference]: With dead ends: 23029 [2018-10-24 14:54:31,217 INFO L226 Difference]: Without dead ends: 12802 [2018-10-24 14:54:31,230 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:54:31,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12802 states. [2018-10-24 14:54:31,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12802 to 11045. [2018-10-24 14:54:31,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11045 states. [2018-10-24 14:54:31,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11045 states to 11045 states and 16559 transitions. [2018-10-24 14:54:31,418 INFO L78 Accepts]: Start accepts. Automaton has 11045 states and 16559 transitions. Word has length 211 [2018-10-24 14:54:31,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:31,419 INFO L481 AbstractCegarLoop]: Abstraction has 11045 states and 16559 transitions. [2018-10-24 14:54:31,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:54:31,419 INFO L276 IsEmpty]: Start isEmpty. Operand 11045 states and 16559 transitions. [2018-10-24 14:54:31,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-10-24 14:54:31,435 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:31,436 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:31,436 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:31,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:31,436 INFO L82 PathProgramCache]: Analyzing trace with hash 2121835886, now seen corresponding path program 1 times [2018-10-24 14:54:31,437 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:31,437 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:31,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:31,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:31,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:31,679 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-24 14:54:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-24 14:54:31,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:31,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:54:31,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:54:31,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:54:31,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:31,702 INFO L87 Difference]: Start difference. First operand 11045 states and 16559 transitions. Second operand 4 states. [2018-10-24 14:54:34,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:34,006 INFO L93 Difference]: Finished difference Result 41022 states and 61357 transitions. [2018-10-24 14:54:34,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:54:34,006 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 211 [2018-10-24 14:54:34,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:34,066 INFO L225 Difference]: With dead ends: 41022 [2018-10-24 14:54:34,067 INFO L226 Difference]: Without dead ends: 29979 [2018-10-24 14:54:34,087 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:34,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29979 states. [2018-10-24 14:54:34,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29979 to 20440. [2018-10-24 14:54:34,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20440 states. [2018-10-24 14:54:34,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20440 states to 20440 states and 29051 transitions. [2018-10-24 14:54:34,440 INFO L78 Accepts]: Start accepts. Automaton has 20440 states and 29051 transitions. Word has length 211 [2018-10-24 14:54:34,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:34,440 INFO L481 AbstractCegarLoop]: Abstraction has 20440 states and 29051 transitions. [2018-10-24 14:54:34,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:54:34,441 INFO L276 IsEmpty]: Start isEmpty. Operand 20440 states and 29051 transitions. [2018-10-24 14:54:34,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-24 14:54:34,468 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:34,469 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2018-10-24 14:54:34,469 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:34,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:34,469 INFO L82 PathProgramCache]: Analyzing trace with hash -946118317, now seen corresponding path program 1 times [2018-10-24 14:54:34,470 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:34,470 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:34,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:34,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:34,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:34,612 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-24 14:54:34,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:34,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:54:34,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:54:34,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:54:34,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:34,614 INFO L87 Difference]: Start difference. First operand 20440 states and 29051 transitions. Second operand 3 states. [2018-10-24 14:54:36,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:36,054 INFO L93 Difference]: Finished difference Result 40906 states and 58154 transitions. [2018-10-24 14:54:36,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:54:36,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2018-10-24 14:54:36,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:36,098 INFO L225 Difference]: With dead ends: 40906 [2018-10-24 14:54:36,099 INFO L226 Difference]: Without dead ends: 20468 [2018-10-24 14:54:36,124 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:36,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20468 states. [2018-10-24 14:54:36,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20468 to 20440. [2018-10-24 14:54:36,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20440 states. [2018-10-24 14:54:36,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20440 states to 20440 states and 27343 transitions. [2018-10-24 14:54:36,554 INFO L78 Accepts]: Start accepts. Automaton has 20440 states and 27343 transitions. Word has length 212 [2018-10-24 14:54:36,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:36,554 INFO L481 AbstractCegarLoop]: Abstraction has 20440 states and 27343 transitions. [2018-10-24 14:54:36,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:54:36,555 INFO L276 IsEmpty]: Start isEmpty. Operand 20440 states and 27343 transitions. [2018-10-24 14:54:36,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-10-24 14:54:36,582 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:36,583 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 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] [2018-10-24 14:54:36,583 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:36,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:36,583 INFO L82 PathProgramCache]: Analyzing trace with hash 964240011, now seen corresponding path program 1 times [2018-10-24 14:54:36,584 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:36,584 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:36,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:36,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:36,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:36,712 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-10-24 14:54:36,713 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:36,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:54:36,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:54:36,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:54:36,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:36,715 INFO L87 Difference]: Start difference. First operand 20440 states and 27343 transitions. Second operand 3 states. [2018-10-24 14:54:38,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:38,416 INFO L93 Difference]: Finished difference Result 57404 states and 76442 transitions. [2018-10-24 14:54:38,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:54:38,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2018-10-24 14:54:38,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:38,473 INFO L225 Difference]: With dead ends: 57404 [2018-10-24 14:54:38,473 INFO L226 Difference]: Without dead ends: 36966 [2018-10-24 14:54:38,504 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:38,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36966 states. [2018-10-24 14:54:38,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36966 to 36958. [2018-10-24 14:54:38,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36958 states. [2018-10-24 14:54:39,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36958 states to 36958 states and 44611 transitions. [2018-10-24 14:54:39,003 INFO L78 Accepts]: Start accepts. Automaton has 36958 states and 44611 transitions. Word has length 219 [2018-10-24 14:54:39,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:39,004 INFO L481 AbstractCegarLoop]: Abstraction has 36958 states and 44611 transitions. [2018-10-24 14:54:39,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:54:39,004 INFO L276 IsEmpty]: Start isEmpty. Operand 36958 states and 44611 transitions. [2018-10-24 14:54:39,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-10-24 14:54:39,037 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:39,038 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:54:39,038 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:39,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:39,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1938525756, now seen corresponding path program 1 times [2018-10-24 14:54:39,039 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:39,039 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:39,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:39,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:39,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:39,345 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:54:39,345 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:39,345 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:54:39,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:54:39,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:54:39,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:39,347 INFO L87 Difference]: Start difference. First operand 36958 states and 44611 transitions. Second operand 4 states. [2018-10-24 14:54:41,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:41,993 INFO L93 Difference]: Finished difference Result 87182 states and 106671 transitions. [2018-10-24 14:54:41,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:54:41,993 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 227 [2018-10-24 14:54:41,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:42,047 INFO L225 Difference]: With dead ends: 87182 [2018-10-24 14:54:42,047 INFO L226 Difference]: Without dead ends: 50226 [2018-10-24 14:54:42,066 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:42,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50226 states. [2018-10-24 14:54:42,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50226 to 50218. [2018-10-24 14:54:42,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50218 states. [2018-10-24 14:54:42,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50218 states to 50218 states and 59044 transitions. [2018-10-24 14:54:42,599 INFO L78 Accepts]: Start accepts. Automaton has 50218 states and 59044 transitions. Word has length 227 [2018-10-24 14:54:42,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:42,599 INFO L481 AbstractCegarLoop]: Abstraction has 50218 states and 59044 transitions. [2018-10-24 14:54:42,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:54:42,599 INFO L276 IsEmpty]: Start isEmpty. Operand 50218 states and 59044 transitions. [2018-10-24 14:54:42,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-10-24 14:54:42,620 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:42,620 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:42,620 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:42,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:42,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1732676009, now seen corresponding path program 1 times [2018-10-24 14:54:42,621 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:42,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:42,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:42,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:42,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:42,797 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-10-24 14:54:42,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:42,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:54:42,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:54:42,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:54:42,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:42,799 INFO L87 Difference]: Start difference. First operand 50218 states and 59044 transitions. Second operand 3 states. [2018-10-24 14:54:43,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:43,788 INFO L93 Difference]: Finished difference Result 99538 states and 116952 transitions. [2018-10-24 14:54:43,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:54:43,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 261 [2018-10-24 14:54:43,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:43,850 INFO L225 Difference]: With dead ends: 99538 [2018-10-24 14:54:43,850 INFO L226 Difference]: Without dead ends: 49322 [2018-10-24 14:54:43,884 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:54:43,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49322 states. [2018-10-24 14:54:44,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49322 to 49322. [2018-10-24 14:54:44,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49322 states. [2018-10-24 14:54:44,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49322 states to 49322 states and 57402 transitions. [2018-10-24 14:54:44,439 INFO L78 Accepts]: Start accepts. Automaton has 49322 states and 57402 transitions. Word has length 261 [2018-10-24 14:54:44,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:44,440 INFO L481 AbstractCegarLoop]: Abstraction has 49322 states and 57402 transitions. [2018-10-24 14:54:44,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:54:44,440 INFO L276 IsEmpty]: Start isEmpty. Operand 49322 states and 57402 transitions. [2018-10-24 14:54:44,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2018-10-24 14:54:44,461 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:44,461 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:44,461 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:44,462 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:44,462 INFO L82 PathProgramCache]: Analyzing trace with hash 89359678, now seen corresponding path program 1 times [2018-10-24 14:54:44,462 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:44,462 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:44,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:44,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:44,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:45,227 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-10-24 14:54:45,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:45,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:54:45,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:54:45,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:54:45,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:45,229 INFO L87 Difference]: Start difference. First operand 49322 states and 57402 transitions. Second operand 4 states. [2018-10-24 14:54:47,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:47,566 INFO L93 Difference]: Finished difference Result 161219 states and 186079 transitions. [2018-10-24 14:54:47,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:54:47,566 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 303 [2018-10-24 14:54:47,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:47,715 INFO L225 Difference]: With dead ends: 161219 [2018-10-24 14:54:47,716 INFO L226 Difference]: Without dead ends: 111899 [2018-10-24 14:54:47,763 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:47,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111899 states. [2018-10-24 14:54:48,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111899 to 82368. [2018-10-24 14:54:48,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82368 states. [2018-10-24 14:54:48,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82368 states to 82368 states and 94333 transitions. [2018-10-24 14:54:48,773 INFO L78 Accepts]: Start accepts. Automaton has 82368 states and 94333 transitions. Word has length 303 [2018-10-24 14:54:48,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:48,774 INFO L481 AbstractCegarLoop]: Abstraction has 82368 states and 94333 transitions. [2018-10-24 14:54:48,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:54:48,774 INFO L276 IsEmpty]: Start isEmpty. Operand 82368 states and 94333 transitions. [2018-10-24 14:54:48,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-10-24 14:54:48,808 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:48,809 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 14:54:48,809 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:48,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:48,809 INFO L82 PathProgramCache]: Analyzing trace with hash -2062689804, now seen corresponding path program 1 times [2018-10-24 14:54:48,809 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:48,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:48,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:48,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:48,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:49,233 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-24 14:54:49,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:49,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:54:49,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:54:49,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:54:49,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:49,236 INFO L87 Difference]: Start difference. First operand 82368 states and 94333 transitions. Second operand 4 states. [2018-10-24 14:54:52,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:52,050 INFO L93 Difference]: Finished difference Result 173569 states and 198229 transitions. [2018-10-24 14:54:52,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:54:52,051 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2018-10-24 14:54:52,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:52,154 INFO L225 Difference]: With dead ends: 173569 [2018-10-24 14:54:52,154 INFO L226 Difference]: Without dead ends: 91203 [2018-10-24 14:54:52,200 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:52,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91203 states. [2018-10-24 14:54:53,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91203 to 82776. [2018-10-24 14:54:53,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82776 states. [2018-10-24 14:54:53,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82776 states to 82776 states and 94429 transitions. [2018-10-24 14:54:53,127 INFO L78 Accepts]: Start accepts. Automaton has 82776 states and 94429 transitions. Word has length 314 [2018-10-24 14:54:53,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:53,127 INFO L481 AbstractCegarLoop]: Abstraction has 82776 states and 94429 transitions. [2018-10-24 14:54:53,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:54:53,128 INFO L276 IsEmpty]: Start isEmpty. Operand 82776 states and 94429 transitions. [2018-10-24 14:54:53,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-10-24 14:54:53,159 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:53,160 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:53,160 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:53,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:53,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1725152879, now seen corresponding path program 1 times [2018-10-24 14:54:53,161 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:53,161 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:53,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:53,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:53,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:53,610 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:54:53,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:53,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:54:53,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:54:53,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:54:53,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:53,612 INFO L87 Difference]: Start difference. First operand 82776 states and 94429 transitions. Second operand 4 states. [2018-10-24 14:54:56,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:54:56,457 INFO L93 Difference]: Finished difference Result 317582 states and 361649 transitions. [2018-10-24 14:54:56,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:54:56,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2018-10-24 14:54:56,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:54:56,704 INFO L225 Difference]: With dead ends: 317582 [2018-10-24 14:54:56,704 INFO L226 Difference]: Without dead ends: 234808 [2018-10-24 14:54:56,764 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:56,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234808 states. [2018-10-24 14:54:58,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234808 to 158168. [2018-10-24 14:54:58,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158168 states. [2018-10-24 14:54:58,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158168 states to 158168 states and 180159 transitions. [2018-10-24 14:54:58,719 INFO L78 Accepts]: Start accepts. Automaton has 158168 states and 180159 transitions. Word has length 314 [2018-10-24 14:54:58,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:54:58,720 INFO L481 AbstractCegarLoop]: Abstraction has 158168 states and 180159 transitions. [2018-10-24 14:54:58,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:54:58,720 INFO L276 IsEmpty]: Start isEmpty. Operand 158168 states and 180159 transitions. [2018-10-24 14:54:58,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-10-24 14:54:58,757 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:54:58,758 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:54:58,758 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:54:58,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:54:58,758 INFO L82 PathProgramCache]: Analyzing trace with hash -839404260, now seen corresponding path program 1 times [2018-10-24 14:54:58,758 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:54:58,758 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:54:58,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:58,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:54:58,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:54:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:54:59,075 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-10-24 14:54:59,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:54:59,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:54:59,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:54:59,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:54:59,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:54:59,081 INFO L87 Difference]: Start difference. First operand 158168 states and 180159 transitions. Second operand 4 states. [2018-10-24 14:55:03,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:55:03,559 INFO L93 Difference]: Finished difference Result 459232 states and 520430 transitions. [2018-10-24 14:55:03,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:55:03,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 320 [2018-10-24 14:55:03,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:55:04,007 INFO L225 Difference]: With dead ends: 459232 [2018-10-24 14:55:04,008 INFO L226 Difference]: Without dead ends: 301066 [2018-10-24 14:55:04,142 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:55:04,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301066 states. [2018-10-24 14:55:08,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301066 to 301056. [2018-10-24 14:55:08,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301056 states. [2018-10-24 14:55:09,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301056 states to 301056 states and 340034 transitions. [2018-10-24 14:55:09,169 INFO L78 Accepts]: Start accepts. Automaton has 301056 states and 340034 transitions. Word has length 320 [2018-10-24 14:55:09,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:55:09,169 INFO L481 AbstractCegarLoop]: Abstraction has 301056 states and 340034 transitions. [2018-10-24 14:55:09,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:55:09,169 INFO L276 IsEmpty]: Start isEmpty. Operand 301056 states and 340034 transitions. [2018-10-24 14:55:09,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-10-24 14:55:09,216 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:55:09,216 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:55:09,217 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:55:09,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:55:09,217 INFO L82 PathProgramCache]: Analyzing trace with hash 961237387, now seen corresponding path program 1 times [2018-10-24 14:55:09,217 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:55:09,217 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:55:09,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:55:09,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:55:09,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:55:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:55:09,514 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-24 14:55:09,515 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:55:09,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:55:09,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:55:09,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:55:09,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:55:09,517 INFO L87 Difference]: Start difference. First operand 301056 states and 340034 transitions. Second operand 3 states. [2018-10-24 14:55:15,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:55:15,003 INFO L93 Difference]: Finished difference Result 570008 states and 644767 transitions. [2018-10-24 14:55:15,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:55:15,003 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 320 [2018-10-24 14:55:15,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:55:15,403 INFO L225 Difference]: With dead ends: 570008 [2018-10-24 14:55:15,404 INFO L226 Difference]: Without dead ends: 268954 [2018-10-24 14:55:15,561 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:55:15,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268954 states. [2018-10-24 14:55:25,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268954 to 268890. [2018-10-24 14:55:25,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268890 states. [2018-10-24 14:55:25,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268890 states to 268890 states and 299592 transitions. [2018-10-24 14:55:25,832 INFO L78 Accepts]: Start accepts. Automaton has 268890 states and 299592 transitions. Word has length 320 [2018-10-24 14:55:25,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:55:25,833 INFO L481 AbstractCegarLoop]: Abstraction has 268890 states and 299592 transitions. [2018-10-24 14:55:25,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:55:25,833 INFO L276 IsEmpty]: Start isEmpty. Operand 268890 states and 299592 transitions. [2018-10-24 14:55:25,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-10-24 14:55:25,871 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:55:25,871 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:55:25,872 INFO L424 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:55:25,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:55:25,872 INFO L82 PathProgramCache]: Analyzing trace with hash -866630993, now seen corresponding path program 1 times [2018-10-24 14:55:25,872 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:55:25,872 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:55:25,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:55:25,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:55:25,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:55:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:55:26,187 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:55:26,187 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:55:26,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:55:26,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:55:26,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:55:26,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:55:26,189 INFO L87 Difference]: Start difference. First operand 268890 states and 299592 transitions. Second operand 3 states. [2018-10-24 14:55:29,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:55:29,931 INFO L93 Difference]: Finished difference Result 547806 states and 611035 transitions. [2018-10-24 14:55:29,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:55:29,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 324 [2018-10-24 14:55:29,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:55:30,293 INFO L225 Difference]: With dead ends: 547806 [2018-10-24 14:55:30,293 INFO L226 Difference]: Without dead ends: 278918 [2018-10-24 14:55:30,443 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:55:30,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278918 states. [2018-10-24 14:55:34,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278918 to 278914. [2018-10-24 14:55:34,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278914 states. [2018-10-24 14:55:36,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278914 states to 278914 states and 308572 transitions. [2018-10-24 14:55:36,101 INFO L78 Accepts]: Start accepts. Automaton has 278914 states and 308572 transitions. Word has length 324 [2018-10-24 14:55:36,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:55:36,102 INFO L481 AbstractCegarLoop]: Abstraction has 278914 states and 308572 transitions. [2018-10-24 14:55:36,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:55:36,102 INFO L276 IsEmpty]: Start isEmpty. Operand 278914 states and 308572 transitions. [2018-10-24 14:55:36,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2018-10-24 14:55:36,153 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:55:36,153 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:55:36,153 INFO L424 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:55:36,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:55:36,154 INFO L82 PathProgramCache]: Analyzing trace with hash -944323539, now seen corresponding path program 1 times [2018-10-24 14:55:36,154 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:55:36,154 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:55:36,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:55:36,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:55:36,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:55:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:55:36,440 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-10-24 14:55:36,440 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:55:36,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:55:36,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:55:36,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:55:36,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:55:36,442 INFO L87 Difference]: Start difference. First operand 278914 states and 308572 transitions. Second operand 4 states. [2018-10-24 14:55:41,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:55:41,532 INFO L93 Difference]: Finished difference Result 574431 states and 636392 transitions. [2018-10-24 14:55:41,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:55:41,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 331 [2018-10-24 14:55:41,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:55:41,956 INFO L225 Difference]: With dead ends: 574431 [2018-10-24 14:55:41,957 INFO L226 Difference]: Without dead ends: 295519 [2018-10-24 14:55:42,050 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:55:42,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295519 states. [2018-10-24 14:55:45,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295519 to 295465. [2018-10-24 14:55:45,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295465 states. [2018-10-24 14:55:46,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295465 states to 295465 states and 326614 transitions. [2018-10-24 14:55:46,312 INFO L78 Accepts]: Start accepts. Automaton has 295465 states and 326614 transitions. Word has length 331 [2018-10-24 14:55:46,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:55:46,313 INFO L481 AbstractCegarLoop]: Abstraction has 295465 states and 326614 transitions. [2018-10-24 14:55:46,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:55:46,313 INFO L276 IsEmpty]: Start isEmpty. Operand 295465 states and 326614 transitions. [2018-10-24 14:55:46,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-10-24 14:55:46,353 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:55:46,353 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:55:46,353 INFO L424 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:55:46,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:55:46,354 INFO L82 PathProgramCache]: Analyzing trace with hash 491247765, now seen corresponding path program 1 times [2018-10-24 14:55:46,354 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:55:46,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:55:46,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:55:46,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:55:46,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:55:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:55:46,627 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 111 proven. 4 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2018-10-24 14:55:46,628 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:55:46,628 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2018-10-24 14:55:46,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:55:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:55:47,657 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:55:47,791 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-10-24 14:55:47,814 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:55:47,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-24 14:55:47,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:55:47,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:55:47,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:55:47,816 INFO L87 Difference]: Start difference. First operand 295465 states and 326614 transitions. Second operand 6 states. [2018-10-24 14:56:00,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:56:00,244 INFO L93 Difference]: Finished difference Result 795734 states and 882981 transitions. [2018-10-24 14:56:00,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 14:56:00,244 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 338 [2018-10-24 14:56:00,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:56:00,244 INFO L225 Difference]: With dead ends: 795734 [2018-10-24 14:56:00,244 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 14:56:00,444 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:56:00,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 14:56:00,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 14:56:00,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 14:56:00,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 14:56:00,445 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 338 [2018-10-24 14:56:00,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:56:00,446 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 14:56:00,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:56:00,446 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 14:56:00,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 14:56:00,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 14:56:03,837 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:03,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:04,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:04,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:04,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:04,999 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:08,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:08,928 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:09,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:09,895 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:09,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:09,912 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:09,917 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:09,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:09,940 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:09,948 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:10,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:10,117 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:10,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:10,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:10,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:10,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:10,573 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:10,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:10,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:10,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:10,655 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:10,720 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:10,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:11,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:11,111 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:11,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:11,323 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:11,485 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:11,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:11,599 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:11,617 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:11,987 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:12,071 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:12,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:12,292 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:12,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:12,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:13,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:13,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:13,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:13,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:13,578 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:13,807 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:13,889 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:14,392 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:14,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:15,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:15,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:15,898 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:16,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:16,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:16,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:16,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:16,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:17,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:17,271 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:17,409 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:18,010 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:18,107 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:18,245 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:18,262 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:18,406 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:18,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:18,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:18,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:19,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:19,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:19,833 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:19,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:20,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:20,778 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:21,771 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:21,941 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:22,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:22,997 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:23,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:23,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:23,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:24,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:24,970 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:25,293 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:25,521 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:25,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:25,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:25,908 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:26,033 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:26,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:26,395 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:27,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:27,128 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:28,003 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:28,061 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:28,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:28,842 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:29,869 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:29,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:30,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:30,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:30,957 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:30,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:31,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:32,293 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:32,804 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:32,941 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:33,079 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:33,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:35,026 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:35,259 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:38,337 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:39,310 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:39,857 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:40,469 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:40,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:40,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:41,198 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:41,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:42,191 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:44,777 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:45,516 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:48,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:48,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:49,204 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:49,353 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:51,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:52,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:56:56,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:01,499 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:04,130 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:04,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:06,758 WARN L179 SmtUtils]: Spent 1.10 m on a formula simplification. DAG size of input: 3632 DAG size of output: 2350 [2018-10-24 14:57:08,563 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:08,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:09,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:09,462 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:09,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:09,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:13,600 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:13,600 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:14,578 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:14,581 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:14,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:14,598 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:14,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:14,612 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:14,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:14,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:14,748 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:14,809 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:14,841 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:14,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:14,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:15,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:15,198 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:15,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:15,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:15,266 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:15,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:15,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:15,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:15,561 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:15,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:15,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:15,831 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:16,009 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:16,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:16,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:16,117 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:16,446 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:16,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:16,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:16,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:16,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:16,877 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:17,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:17,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:17,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:18,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:18,206 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:18,388 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:18,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:19,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:19,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:19,857 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:20,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:20,529 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:20,841 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:20,964 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:21,285 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:21,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:21,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:21,962 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:22,208 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:22,361 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:22,931 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:23,033 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:23,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:23,214 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:23,380 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:23,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:23,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:24,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:24,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:24,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:24,882 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:24,942 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:25,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:26,024 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:27,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:27,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:28,115 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:28,342 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:28,503 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:28,573 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:28,799 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:30,316 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:30,454 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:30,820 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:31,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:31,269 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:31,319 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:31,474 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:31,600 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:31,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:31,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:32,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:32,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:33,733 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:33,787 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:34,162 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:34,471 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:35,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:35,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:35,663 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:36,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:36,339 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:36,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:36,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:38,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:38,456 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:38,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:38,733 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:38,802 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:40,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:41,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:44,255 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:45,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:45,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:46,575 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:46,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:47,068 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:47,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:47,669 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:48,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:50,652 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 14:57:51,218 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-10-24 14:57:53,474 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-10-24 14:57:53,475 INFO L168 Benchmark]: Toolchain (without parser) took 231102.98 ms. Allocated memory was 1.5 GB in the beginning and 5.5 GB in the end (delta: 3.9 GB). Free memory was 1.4 GB in the beginning and 4.2 GB in the end (delta: -2.8 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-10-24 14:57:53,476 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-10-24 14:57:53,477 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1092.72 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-24 14:57:53,479 INFO L168 Benchmark]: Boogie Procedure Inliner took 315.72 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -860.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:57:53,480 INFO L168 Benchmark]: Boogie Preprocessor took 113.25 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:57:53,483 INFO L168 Benchmark]: RCFGBuilder took 5280.29 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 263.3 MB). Peak memory consumption was 263.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:57:53,484 INFO L168 Benchmark]: TraceAbstraction took 224295.73 ms. Allocated memory was 2.3 GB in the beginning and 5.5 GB in the end (delta: 3.2 GB). Free memory was 1.9 GB in the beginning and 4.2 GB in the end (delta: -2.3 GB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-10-24 14:57:53,492 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1092.72 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 315.72 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -860.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.25 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5280.29 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 263.3 MB). Peak memory consumption was 263.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224295.73 ms. Allocated memory was 2.3 GB in the beginning and 5.5 GB in the end (delta: 3.2 GB). Free memory was 1.9 GB in the beginning and 4.2 GB in the end (delta: -2.3 GB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1545]: 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 3617. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown