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_label46_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 15:00:27,025 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 15:00:27,027 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 15:00:27,041 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 15:00:27,042 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 15:00:27,043 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 15:00:27,044 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 15:00:27,046 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 15:00:27,047 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 15:00:27,048 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 15:00:27,050 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 15:00:27,050 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 15:00:27,051 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 15:00:27,052 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 15:00:27,053 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 15:00:27,054 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 15:00:27,055 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 15:00:27,057 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 15:00:27,059 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 15:00:27,060 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 15:00:27,061 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 15:00:27,062 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 15:00:27,065 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 15:00:27,065 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 15:00:27,065 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 15:00:27,066 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 15:00:27,067 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 15:00:27,068 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 15:00:27,069 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 15:00:27,070 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 15:00:27,070 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 15:00:27,071 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 15:00:27,071 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 15:00:27,071 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 15:00:27,072 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 15:00:27,073 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 15:00:27,073 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 15:00:27,107 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 15:00:27,107 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 15:00:27,109 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 15:00:27,109 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 15:00:27,112 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 15:00:27,112 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 15:00:27,113 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 15:00:27,114 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 15:00:27,114 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 15:00:27,114 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 15:00:27,114 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 15:00:27,114 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 15:00:27,115 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 15:00:27,115 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 15:00:27,115 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 15:00:27,115 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 15:00:27,115 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 15:00:27,116 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 15:00:27,116 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 15:00:27,116 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 15:00:27,116 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 15:00:27,116 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 15:00:27,117 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 15:00:27,118 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 15:00:27,118 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 15:00:27,118 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 15:00:27,118 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 15:00:27,119 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 15:00:27,187 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 15:00:27,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 15:00:27,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 15:00:27,211 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 15:00:27,211 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 15:00:27,212 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label46_true-unreach-call.c [2018-10-24 15:00:27,284 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b3407f98c/fdc02123ddfc4915ba9194ccc1fe8c0b/FLAGb8632ac1a [2018-10-24 15:00:27,969 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 15:00:27,970 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label46_true-unreach-call.c [2018-10-24 15:00:27,988 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b3407f98c/fdc02123ddfc4915ba9194ccc1fe8c0b/FLAGb8632ac1a [2018-10-24 15:00:28,009 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b3407f98c/fdc02123ddfc4915ba9194ccc1fe8c0b [2018-10-24 15:00:28,022 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 15:00:28,025 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 15:00:28,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 15:00:28,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 15:00:28,033 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 15:00:28,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:00:28" (1/1) ... [2018-10-24 15:00:28,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16219d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:28, skipping insertion in model container [2018-10-24 15:00:28,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:00:28" (1/1) ... [2018-10-24 15:00:28,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 15:00:28,148 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 15:00:28,908 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 15:00:28,920 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 15:00:29,206 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 15:00:29,232 INFO L193 MainTranslator]: Completed translation [2018-10-24 15:00:29,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:29 WrapperNode [2018-10-24 15:00:29,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 15:00:29,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 15:00:29,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 15:00:29,234 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 15:00:29,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:29" (1/1) ... [2018-10-24 15:00:29,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:29" (1/1) ... [2018-10-24 15:00:29,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 15:00:29,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 15:00:29,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 15:00:29,550 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 15:00:29,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:29" (1/1) ... [2018-10-24 15:00:29,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:29" (1/1) ... [2018-10-24 15:00:29,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:29" (1/1) ... [2018-10-24 15:00:29,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:29" (1/1) ... [2018-10-24 15:00:29,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:29" (1/1) ... [2018-10-24 15:00:29,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:29" (1/1) ... [2018-10-24 15:00:29,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:29" (1/1) ... [2018-10-24 15:00:29,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 15:00:29,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 15:00:29,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 15:00:29,674 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 15:00:29,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:29" (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 15:00:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 15:00:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 15:00:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 15:00:35,431 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 15:00:35,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:00:35 BoogieIcfgContainer [2018-10-24 15:00:35,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 15:00:35,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 15:00:35,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 15:00:35,438 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 15:00:35,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:00:28" (1/3) ... [2018-10-24 15:00:35,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c86ecf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:00:35, skipping insertion in model container [2018-10-24 15:00:35,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:29" (2/3) ... [2018-10-24 15:00:35,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c86ecf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:00:35, skipping insertion in model container [2018-10-24 15:00:35,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:00:35" (3/3) ... [2018-10-24 15:00:35,443 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label46_true-unreach-call.c [2018-10-24 15:00:35,454 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 15:00:35,470 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 15:00:35,490 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 15:00:35,529 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 15:00:35,530 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 15:00:35,530 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 15:00:35,530 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 15:00:35,530 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 15:00:35,531 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 15:00:35,531 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 15:00:35,531 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 15:00:35,531 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 15:00:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states. [2018-10-24 15:00:35,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-10-24 15:00:35,577 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:00:35,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:00:35,581 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:00:35,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:00:35,587 INFO L82 PathProgramCache]: Analyzing trace with hash -953673444, now seen corresponding path program 1 times [2018-10-24 15:00:35,589 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:00:35,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:00:35,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:35,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:00:35,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:00:36,480 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-24 15:00:36,600 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 15:00:36,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:00:36,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 15:00:36,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 15:00:36,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 15:00:36,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:00:36,631 INFO L87 Difference]: Start difference. First operand 303 states. Second operand 4 states. [2018-10-24 15:00:40,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:00:40,280 INFO L93 Difference]: Finished difference Result 1072 states and 1917 transitions. [2018-10-24 15:00:40,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:00:40,283 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2018-10-24 15:00:40,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:00:40,308 INFO L225 Difference]: With dead ends: 1072 [2018-10-24 15:00:40,309 INFO L226 Difference]: Without dead ends: 762 [2018-10-24 15:00:40,314 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 15:00:40,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2018-10-24 15:00:40,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 518. [2018-10-24 15:00:40,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2018-10-24 15:00:40,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 855 transitions. [2018-10-24 15:00:40,423 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 855 transitions. Word has length 186 [2018-10-24 15:00:40,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:00:40,424 INFO L481 AbstractCegarLoop]: Abstraction has 518 states and 855 transitions. [2018-10-24 15:00:40,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 15:00:40,427 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 855 transitions. [2018-10-24 15:00:40,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-24 15:00:40,442 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:00:40,442 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:00:40,442 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:00:40,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:00:40,443 INFO L82 PathProgramCache]: Analyzing trace with hash 675054029, now seen corresponding path program 1 times [2018-10-24 15:00:40,443 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:00:40,443 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:00:40,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:40,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:00:40,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:00:40,784 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 15:00:40,785 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:00:40,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 15:00:40,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 15:00:40,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 15:00:40,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:00:40,788 INFO L87 Difference]: Start difference. First operand 518 states and 855 transitions. Second operand 4 states. [2018-10-24 15:00:44,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:00:44,102 INFO L93 Difference]: Finished difference Result 1918 states and 3253 transitions. [2018-10-24 15:00:44,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:00:44,103 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 192 [2018-10-24 15:00:44,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:00:44,112 INFO L225 Difference]: With dead ends: 1918 [2018-10-24 15:00:44,113 INFO L226 Difference]: Without dead ends: 1402 [2018-10-24 15:00:44,116 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 15:00:44,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2018-10-24 15:00:44,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 933. [2018-10-24 15:00:44,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2018-10-24 15:00:44,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1472 transitions. [2018-10-24 15:00:44,151 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1472 transitions. Word has length 192 [2018-10-24 15:00:44,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:00:44,151 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1472 transitions. [2018-10-24 15:00:44,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 15:00:44,151 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1472 transitions. [2018-10-24 15:00:44,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-10-24 15:00:44,155 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:00:44,156 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:00:44,156 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:00:44,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:00:44,156 INFO L82 PathProgramCache]: Analyzing trace with hash 598448987, now seen corresponding path program 1 times [2018-10-24 15:00:44,157 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:00:44,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:00:44,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:44,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:00:44,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:00:44,280 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 15:00:44,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:00:44,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 15:00:44,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 15:00:44,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 15:00:44,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:00:44,283 INFO L87 Difference]: Start difference. First operand 933 states and 1472 transitions. Second operand 3 states. [2018-10-24 15:00:46,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:00:46,835 INFO L93 Difference]: Finished difference Result 2699 states and 4315 transitions. [2018-10-24 15:00:46,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 15:00:46,835 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2018-10-24 15:00:46,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:00:46,845 INFO L225 Difference]: With dead ends: 2699 [2018-10-24 15:00:46,846 INFO L226 Difference]: Without dead ends: 1768 [2018-10-24 15:00:46,848 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 15:00:46,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2018-10-24 15:00:46,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1751. [2018-10-24 15:00:46,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1751 states. [2018-10-24 15:00:46,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2699 transitions. [2018-10-24 15:00:46,886 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2699 transitions. Word has length 195 [2018-10-24 15:00:46,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:00:46,886 INFO L481 AbstractCegarLoop]: Abstraction has 1751 states and 2699 transitions. [2018-10-24 15:00:46,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 15:00:46,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2699 transitions. [2018-10-24 15:00:46,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-10-24 15:00:46,892 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:00:46,892 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:00:46,892 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:00:46,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:00:46,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1492809433, now seen corresponding path program 1 times [2018-10-24 15:00:46,893 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:00:46,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:00:46,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:46,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:00:46,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:00:47,024 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 15:00:47,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:00:47,025 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 15:00:47,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 15:00:47,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 15:00:47,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:00:47,026 INFO L87 Difference]: Start difference. First operand 1751 states and 2699 transitions. Second operand 3 states. [2018-10-24 15:00:48,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:00:48,464 INFO L93 Difference]: Finished difference Result 4329 states and 6639 transitions. [2018-10-24 15:00:48,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 15:00:48,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2018-10-24 15:00:48,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:00:48,476 INFO L225 Difference]: With dead ends: 4329 [2018-10-24 15:00:48,477 INFO L226 Difference]: Without dead ends: 2580 [2018-10-24 15:00:48,479 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 15:00:48,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2018-10-24 15:00:48,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2579. [2018-10-24 15:00:48,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2579 states. [2018-10-24 15:00:48,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2579 states to 2579 states and 3884 transitions. [2018-10-24 15:00:48,526 INFO L78 Accepts]: Start accepts. Automaton has 2579 states and 3884 transitions. Word has length 203 [2018-10-24 15:00:48,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:00:48,526 INFO L481 AbstractCegarLoop]: Abstraction has 2579 states and 3884 transitions. [2018-10-24 15:00:48,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 15:00:48,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2579 states and 3884 transitions. [2018-10-24 15:00:48,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-10-24 15:00:48,533 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:00:48,533 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:00:48,534 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:00:48,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:00:48,534 INFO L82 PathProgramCache]: Analyzing trace with hash -105176928, now seen corresponding path program 1 times [2018-10-24 15:00:48,534 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:00:48,535 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:00:48,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:48,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:00:48,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:00:48,683 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 15:00:48,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:00:48,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 15:00:48,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 15:00:48,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 15:00:48,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:00:48,685 INFO L87 Difference]: Start difference. First operand 2579 states and 3884 transitions. Second operand 3 states. [2018-10-24 15:00:49,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:00:49,544 INFO L93 Difference]: Finished difference Result 7713 states and 11623 transitions. [2018-10-24 15:00:49,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 15:00:49,550 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 209 [2018-10-24 15:00:49,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:00:49,575 INFO L225 Difference]: With dead ends: 7713 [2018-10-24 15:00:49,575 INFO L226 Difference]: Without dead ends: 5136 [2018-10-24 15:00:49,580 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 15:00:49,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5136 states. [2018-10-24 15:00:49,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5136 to 5133. [2018-10-24 15:00:49,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5133 states. [2018-10-24 15:00:49,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 7720 transitions. [2018-10-24 15:00:49,684 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 7720 transitions. Word has length 209 [2018-10-24 15:00:49,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:00:49,685 INFO L481 AbstractCegarLoop]: Abstraction has 5133 states and 7720 transitions. [2018-10-24 15:00:49,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 15:00:49,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 7720 transitions. [2018-10-24 15:00:49,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-10-24 15:00:49,696 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:00:49,696 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:00:49,697 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:00:49,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:00:49,697 INFO L82 PathProgramCache]: Analyzing trace with hash 37695417, now seen corresponding path program 1 times [2018-10-24 15:00:49,697 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:00:49,697 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:00:49,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:49,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:00:49,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:00:50,038 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 15:00:50,039 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 15:00:50,039 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 15:00:50,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:00:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:00:50,203 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 15:00:50,287 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 15:00:50,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 15:00:50,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2018-10-24 15:00:50,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 15:00:50,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 15:00:50,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:00:50,322 INFO L87 Difference]: Start difference. First operand 5133 states and 7720 transitions. Second operand 4 states. [2018-10-24 15:00:52,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:00:52,062 INFO L93 Difference]: Finished difference Result 20487 states and 30826 transitions. [2018-10-24 15:00:52,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:00:52,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 218 [2018-10-24 15:00:52,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:00:52,133 INFO L225 Difference]: With dead ends: 20487 [2018-10-24 15:00:52,133 INFO L226 Difference]: Without dead ends: 15356 [2018-10-24 15:00:52,144 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 218 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 15:00:52,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15356 states. [2018-10-24 15:00:52,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15356 to 10229. [2018-10-24 15:00:52,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10229 states. [2018-10-24 15:00:52,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10229 states to 10229 states and 15363 transitions. [2018-10-24 15:00:52,396 INFO L78 Accepts]: Start accepts. Automaton has 10229 states and 15363 transitions. Word has length 218 [2018-10-24 15:00:52,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:00:52,397 INFO L481 AbstractCegarLoop]: Abstraction has 10229 states and 15363 transitions. [2018-10-24 15:00:52,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 15:00:52,398 INFO L276 IsEmpty]: Start isEmpty. Operand 10229 states and 15363 transitions. [2018-10-24 15:00:52,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-10-24 15:00:52,416 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:00:52,416 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:00:52,416 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:00:52,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:00:52,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1623450648, now seen corresponding path program 1 times [2018-10-24 15:00:52,417 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:00:52,417 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:00:52,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:52,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:00:52,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:00:52,707 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 15:00:52,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:00:52,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 15:00:52,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 15:00:52,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 15:00:52,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 15:00:52,709 INFO L87 Difference]: Start difference. First operand 10229 states and 15363 transitions. Second operand 5 states. [2018-10-24 15:00:55,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:00:55,396 INFO L93 Difference]: Finished difference Result 23029 states and 35010 transitions. [2018-10-24 15:00:55,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 15:00:55,404 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 226 [2018-10-24 15:00:55,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:00:55,437 INFO L225 Difference]: With dead ends: 23029 [2018-10-24 15:00:55,438 INFO L226 Difference]: Without dead ends: 12802 [2018-10-24 15:00:55,450 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 15:00:55,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12802 states. [2018-10-24 15:00:55,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12802 to 11045. [2018-10-24 15:00:55,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11045 states. [2018-10-24 15:00:55,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11045 states to 11045 states and 16559 transitions. [2018-10-24 15:00:55,661 INFO L78 Accepts]: Start accepts. Automaton has 11045 states and 16559 transitions. Word has length 226 [2018-10-24 15:00:55,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:00:55,662 INFO L481 AbstractCegarLoop]: Abstraction has 11045 states and 16559 transitions. [2018-10-24 15:00:55,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 15:00:55,662 INFO L276 IsEmpty]: Start isEmpty. Operand 11045 states and 16559 transitions. [2018-10-24 15:00:55,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-10-24 15:00:55,682 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:00:55,682 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:00:55,682 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:00:55,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:00:55,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1399517080, now seen corresponding path program 1 times [2018-10-24 15:00:55,683 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:00:55,683 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:00:55,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:55,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:00:55,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:55,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:00:55,956 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 15:00:55,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:00:55,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 15:00:55,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 15:00:55,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 15:00:55,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:00:55,958 INFO L87 Difference]: Start difference. First operand 11045 states and 16559 transitions. Second operand 4 states. [2018-10-24 15:00:58,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:00:58,739 INFO L93 Difference]: Finished difference Result 41022 states and 61357 transitions. [2018-10-24 15:00:58,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:00:58,739 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 226 [2018-10-24 15:00:58,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:00:58,797 INFO L225 Difference]: With dead ends: 41022 [2018-10-24 15:00:58,797 INFO L226 Difference]: Without dead ends: 29979 [2018-10-24 15:00:58,816 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 15:00:58,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29979 states. [2018-10-24 15:00:59,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29979 to 20440. [2018-10-24 15:00:59,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20440 states. [2018-10-24 15:00:59,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20440 states to 20440 states and 29051 transitions. [2018-10-24 15:00:59,222 INFO L78 Accepts]: Start accepts. Automaton has 20440 states and 29051 transitions. Word has length 226 [2018-10-24 15:00:59,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:00:59,223 INFO L481 AbstractCegarLoop]: Abstraction has 20440 states and 29051 transitions. [2018-10-24 15:00:59,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 15:00:59,223 INFO L276 IsEmpty]: Start isEmpty. Operand 20440 states and 29051 transitions. [2018-10-24 15:00:59,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-10-24 15:00:59,255 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:00:59,256 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:00:59,256 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:00:59,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:00:59,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1231663853, now seen corresponding path program 1 times [2018-10-24 15:00:59,257 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:00:59,257 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:00:59,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:59,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:00:59,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:00:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:00:59,410 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 15:00:59,410 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:00:59,410 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 15:00:59,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 15:00:59,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 15:00:59,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:00:59,411 INFO L87 Difference]: Start difference. First operand 20440 states and 29051 transitions. Second operand 3 states. [2018-10-24 15:01:01,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:01:01,329 INFO L93 Difference]: Finished difference Result 40906 states and 58154 transitions. [2018-10-24 15:01:01,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 15:01:01,329 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 227 [2018-10-24 15:01:01,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:01:01,359 INFO L225 Difference]: With dead ends: 40906 [2018-10-24 15:01:01,359 INFO L226 Difference]: Without dead ends: 20468 [2018-10-24 15:01:01,382 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 15:01:01,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20468 states. [2018-10-24 15:01:01,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20468 to 20440. [2018-10-24 15:01:01,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20440 states. [2018-10-24 15:01:01,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20440 states to 20440 states and 27343 transitions. [2018-10-24 15:01:01,659 INFO L78 Accepts]: Start accepts. Automaton has 20440 states and 27343 transitions. Word has length 227 [2018-10-24 15:01:01,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:01:01,660 INFO L481 AbstractCegarLoop]: Abstraction has 20440 states and 27343 transitions. [2018-10-24 15:01:01,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 15:01:01,660 INFO L276 IsEmpty]: Start isEmpty. Operand 20440 states and 27343 transitions. [2018-10-24 15:01:01,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-10-24 15:01:01,693 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:01:01,693 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:01:01,693 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:01:01,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:01:01,694 INFO L82 PathProgramCache]: Analyzing trace with hash -12127013, now seen corresponding path program 1 times [2018-10-24 15:01:01,694 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:01:01,694 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:01:01,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:01,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:01:01,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:01:01,844 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 15:01:01,844 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:01:01,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 15:01:01,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 15:01:01,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 15:01:01,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:01:01,845 INFO L87 Difference]: Start difference. First operand 20440 states and 27343 transitions. Second operand 3 states. [2018-10-24 15:01:04,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:01:04,520 INFO L93 Difference]: Finished difference Result 57404 states and 76442 transitions. [2018-10-24 15:01:04,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 15:01:04,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2018-10-24 15:01:04,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:01:04,564 INFO L225 Difference]: With dead ends: 57404 [2018-10-24 15:01:04,564 INFO L226 Difference]: Without dead ends: 36966 [2018-10-24 15:01:04,586 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 15:01:04,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36966 states. [2018-10-24 15:01:05,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36966 to 36958. [2018-10-24 15:01:05,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36958 states. [2018-10-24 15:01:05,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36958 states to 36958 states and 44611 transitions. [2018-10-24 15:01:05,067 INFO L78 Accepts]: Start accepts. Automaton has 36958 states and 44611 transitions. Word has length 234 [2018-10-24 15:01:05,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:01:05,068 INFO L481 AbstractCegarLoop]: Abstraction has 36958 states and 44611 transitions. [2018-10-24 15:01:05,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 15:01:05,068 INFO L276 IsEmpty]: Start isEmpty. Operand 36958 states and 44611 transitions. [2018-10-24 15:01:05,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-10-24 15:01:05,104 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:01:05,105 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:01:05,105 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:01:05,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:01:05,105 INFO L82 PathProgramCache]: Analyzing trace with hash 870198402, now seen corresponding path program 1 times [2018-10-24 15:01:05,106 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:01:05,108 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:01:05,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:05,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:01:05,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:01:05,442 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 15:01:05,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:01:05,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 15:01:05,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 15:01:05,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 15:01:05,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:01:05,444 INFO L87 Difference]: Start difference. First operand 36958 states and 44611 transitions. Second operand 4 states. [2018-10-24 15:01:07,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:01:07,839 INFO L93 Difference]: Finished difference Result 87182 states and 106671 transitions. [2018-10-24 15:01:07,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:01:07,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 242 [2018-10-24 15:01:07,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:01:07,890 INFO L225 Difference]: With dead ends: 87182 [2018-10-24 15:01:07,890 INFO L226 Difference]: Without dead ends: 50226 [2018-10-24 15:01:07,912 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 15:01:07,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50226 states. [2018-10-24 15:01:08,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50226 to 50218. [2018-10-24 15:01:08,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50218 states. [2018-10-24 15:01:08,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50218 states to 50218 states and 59044 transitions. [2018-10-24 15:01:08,497 INFO L78 Accepts]: Start accepts. Automaton has 50218 states and 59044 transitions. Word has length 242 [2018-10-24 15:01:08,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:01:08,497 INFO L481 AbstractCegarLoop]: Abstraction has 50218 states and 59044 transitions. [2018-10-24 15:01:08,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 15:01:08,498 INFO L276 IsEmpty]: Start isEmpty. Operand 50218 states and 59044 transitions. [2018-10-24 15:01:08,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-10-24 15:01:08,518 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:01:08,519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:01:08,519 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:01:08,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:01:08,520 INFO L82 PathProgramCache]: Analyzing trace with hash -46748163, now seen corresponding path program 1 times [2018-10-24 15:01:08,520 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:01:08,520 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:01:08,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:08,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:01:08,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:01:08,728 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 15:01:08,728 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:01:08,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 15:01:08,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 15:01:08,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 15:01:08,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:01:08,729 INFO L87 Difference]: Start difference. First operand 50218 states and 59044 transitions. Second operand 3 states. [2018-10-24 15:01:09,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:01:09,622 INFO L93 Difference]: Finished difference Result 99538 states and 116952 transitions. [2018-10-24 15:01:09,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 15:01:09,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2018-10-24 15:01:09,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:01:09,677 INFO L225 Difference]: With dead ends: 99538 [2018-10-24 15:01:09,677 INFO L226 Difference]: Without dead ends: 49322 [2018-10-24 15:01:09,706 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 15:01:09,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49322 states. [2018-10-24 15:01:10,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49322 to 49322. [2018-10-24 15:01:10,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49322 states. [2018-10-24 15:01:10,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49322 states to 49322 states and 57402 transitions. [2018-10-24 15:01:10,671 INFO L78 Accepts]: Start accepts. Automaton has 49322 states and 57402 transitions. Word has length 276 [2018-10-24 15:01:10,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:01:10,671 INFO L481 AbstractCegarLoop]: Abstraction has 49322 states and 57402 transitions. [2018-10-24 15:01:10,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 15:01:10,671 INFO L276 IsEmpty]: Start isEmpty. Operand 49322 states and 57402 transitions. [2018-10-24 15:01:10,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-10-24 15:01:10,688 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:01:10,689 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 15:01:10,689 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:01:10,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:01:10,690 INFO L82 PathProgramCache]: Analyzing trace with hash -2654650, now seen corresponding path program 1 times [2018-10-24 15:01:10,690 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:01:10,690 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:01:10,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:10,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:01:10,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:01:11,067 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-24 15:01:11,068 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:01:11,068 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 15:01:11,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 15:01:11,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 15:01:11,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:01:11,069 INFO L87 Difference]: Start difference. First operand 49322 states and 57402 transitions. Second operand 4 states. [2018-10-24 15:01:13,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:01:13,617 INFO L93 Difference]: Finished difference Result 160811 states and 185593 transitions. [2018-10-24 15:01:13,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:01:13,618 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 286 [2018-10-24 15:01:13,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:01:13,751 INFO L225 Difference]: With dead ends: 160811 [2018-10-24 15:01:13,751 INFO L226 Difference]: Without dead ends: 111491 [2018-10-24 15:01:13,797 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 15:01:13,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111491 states. [2018-10-24 15:01:14,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111491 to 82368. [2018-10-24 15:01:14,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82368 states. [2018-10-24 15:01:14,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82368 states to 82368 states and 94327 transitions. [2018-10-24 15:01:14,738 INFO L78 Accepts]: Start accepts. Automaton has 82368 states and 94327 transitions. Word has length 286 [2018-10-24 15:01:14,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:01:14,738 INFO L481 AbstractCegarLoop]: Abstraction has 82368 states and 94327 transitions. [2018-10-24 15:01:14,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 15:01:14,739 INFO L276 IsEmpty]: Start isEmpty. Operand 82368 states and 94327 transitions. [2018-10-24 15:01:14,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-10-24 15:01:14,778 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:01:14,779 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 15:01:14,779 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:01:14,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:01:14,780 INFO L82 PathProgramCache]: Analyzing trace with hash 441793273, now seen corresponding path program 1 times [2018-10-24 15:01:14,780 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:01:14,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:01:14,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:14,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:01:14,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:01:15,692 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-10-24 15:01:15,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:01:15,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 15:01:15,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 15:01:15,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 15:01:15,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:01:15,694 INFO L87 Difference]: Start difference. First operand 82368 states and 94327 transitions. Second operand 3 states. [2018-10-24 15:01:17,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:01:17,175 INFO L93 Difference]: Finished difference Result 164726 states and 188644 transitions. [2018-10-24 15:01:17,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 15:01:17,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 314 [2018-10-24 15:01:17,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:01:17,274 INFO L225 Difference]: With dead ends: 164726 [2018-10-24 15:01:17,275 INFO L226 Difference]: Without dead ends: 82360 [2018-10-24 15:01:17,323 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 15:01:17,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82360 states. [2018-10-24 15:01:18,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82360 to 82360. [2018-10-24 15:01:18,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82360 states. [2018-10-24 15:01:18,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82360 states to 82360 states and 94311 transitions. [2018-10-24 15:01:18,138 INFO L78 Accepts]: Start accepts. Automaton has 82360 states and 94311 transitions. Word has length 314 [2018-10-24 15:01:18,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:01:18,138 INFO L481 AbstractCegarLoop]: Abstraction has 82360 states and 94311 transitions. [2018-10-24 15:01:18,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 15:01:18,138 INFO L276 IsEmpty]: Start isEmpty. Operand 82360 states and 94311 transitions. [2018-10-24 15:01:18,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2018-10-24 15:01:18,163 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:01:18,163 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:18,163 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:01:18,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:01:18,163 INFO L82 PathProgramCache]: Analyzing trace with hash 547264015, now seen corresponding path program 1 times [2018-10-24 15:01:18,164 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:01:18,164 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:01:18,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:18,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:01:18,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:01:18,528 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 106 proven. 4 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-10-24 15:01:18,528 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 15:01:18,528 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 15:01:18,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:01:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:01:18,675 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 15:01:18,793 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-10-24 15:01:18,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 15:01:18,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-24 15:01:18,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 15:01:18,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 15:01:18,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 15:01:18,817 INFO L87 Difference]: Start difference. First operand 82360 states and 94311 transitions. Second operand 6 states. [2018-10-24 15:01:24,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:01:24,246 INFO L93 Difference]: Finished difference Result 242791 states and 278238 transitions. [2018-10-24 15:01:24,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 15:01:24,247 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 321 [2018-10-24 15:01:24,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:01:24,424 INFO L225 Difference]: With dead ends: 242791 [2018-10-24 15:01:24,424 INFO L226 Difference]: Without dead ends: 160433 [2018-10-24 15:01:24,489 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-10-24 15:01:24,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160433 states. [2018-10-24 15:01:25,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160433 to 159142. [2018-10-24 15:01:25,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159142 states. [2018-10-24 15:01:26,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159142 states to 159142 states and 177838 transitions. [2018-10-24 15:01:26,086 INFO L78 Accepts]: Start accepts. Automaton has 159142 states and 177838 transitions. Word has length 321 [2018-10-24 15:01:26,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:01:26,087 INFO L481 AbstractCegarLoop]: Abstraction has 159142 states and 177838 transitions. [2018-10-24 15:01:26,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 15:01:26,087 INFO L276 IsEmpty]: Start isEmpty. Operand 159142 states and 177838 transitions. [2018-10-24 15:01:26,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2018-10-24 15:01:26,877 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:01:26,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:01:26,877 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:01:26,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:01:26,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1724319799, now seen corresponding path program 1 times [2018-10-24 15:01:26,878 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:01:26,878 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:01:26,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:26,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:01:26,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:01:27,255 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 15:01:27,255 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:01:27,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 15:01:27,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 15:01:27,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 15:01:27,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:01:27,257 INFO L87 Difference]: Start difference. First operand 159142 states and 177838 transitions. Second operand 3 states. [2018-10-24 15:01:29,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:01:29,846 INFO L93 Difference]: Finished difference Result 326900 states and 365941 transitions. [2018-10-24 15:01:29,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 15:01:29,846 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 339 [2018-10-24 15:01:29,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:01:30,045 INFO L225 Difference]: With dead ends: 326900 [2018-10-24 15:01:30,045 INFO L226 Difference]: Without dead ends: 167760 [2018-10-24 15:01:30,119 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 15:01:30,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167760 states. [2018-10-24 15:01:31,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167760 to 167757. [2018-10-24 15:01:31,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167757 states. [2018-10-24 15:01:33,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167757 states to 167757 states and 186187 transitions. [2018-10-24 15:01:33,054 INFO L78 Accepts]: Start accepts. Automaton has 167757 states and 186187 transitions. Word has length 339 [2018-10-24 15:01:33,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:01:33,054 INFO L481 AbstractCegarLoop]: Abstraction has 167757 states and 186187 transitions. [2018-10-24 15:01:33,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 15:01:33,055 INFO L276 IsEmpty]: Start isEmpty. Operand 167757 states and 186187 transitions. [2018-10-24 15:01:33,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2018-10-24 15:01:33,081 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:01:33,081 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:01:33,081 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:01:33,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:01:33,082 INFO L82 PathProgramCache]: Analyzing trace with hash 172071673, now seen corresponding path program 1 times [2018-10-24 15:01:33,082 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:01:33,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:01:33,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:33,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:01:33,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:01:33,460 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 15:01:33,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:01:33,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 15:01:33,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 15:01:33,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 15:01:33,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:01:33,462 INFO L87 Difference]: Start difference. First operand 167757 states and 186187 transitions. Second operand 4 states. [2018-10-24 15:01:36,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:01:36,666 INFO L93 Difference]: Finished difference Result 346806 states and 385535 transitions. [2018-10-24 15:01:36,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:01:36,666 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 346 [2018-10-24 15:01:36,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:01:36,843 INFO L225 Difference]: With dead ends: 346806 [2018-10-24 15:01:36,843 INFO L226 Difference]: Without dead ends: 179051 [2018-10-24 15:01:36,914 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 15:01:37,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179051 states. [2018-10-24 15:01:39,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179051 to 179010. [2018-10-24 15:01:39,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179010 states. [2018-10-24 15:01:39,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179010 states to 179010 states and 198488 transitions. [2018-10-24 15:01:39,697 INFO L78 Accepts]: Start accepts. Automaton has 179010 states and 198488 transitions. Word has length 346 [2018-10-24 15:01:39,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:01:39,698 INFO L481 AbstractCegarLoop]: Abstraction has 179010 states and 198488 transitions. [2018-10-24 15:01:39,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 15:01:39,698 INFO L276 IsEmpty]: Start isEmpty. Operand 179010 states and 198488 transitions. [2018-10-24 15:01:39,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2018-10-24 15:01:39,732 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:01:39,733 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 15:01:39,733 INFO L424 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:01:39,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:01:39,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1694356248, now seen corresponding path program 1 times [2018-10-24 15:01:39,733 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:01:39,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:01:39,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:39,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:01:39,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:01:40,282 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-10-24 15:01:40,282 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:01:40,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 15:01:40,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 15:01:40,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 15:01:40,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:01:40,284 INFO L87 Difference]: Start difference. First operand 179010 states and 198488 transitions. Second operand 4 states. [2018-10-24 15:01:46,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:01:46,815 INFO L93 Difference]: Finished difference Result 656676 states and 727540 transitions. [2018-10-24 15:01:46,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:01:46,816 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 374 [2018-10-24 15:01:46,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:01:47,573 INFO L225 Difference]: With dead ends: 656676 [2018-10-24 15:01:47,573 INFO L226 Difference]: Without dead ends: 477668 [2018-10-24 15:01:47,687 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 15:01:48,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477668 states. [2018-10-24 15:01:57,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477668 to 306447. [2018-10-24 15:01:57,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306447 states. [2018-10-24 15:01:58,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306447 states to 306447 states and 339139 transitions. [2018-10-24 15:01:58,286 INFO L78 Accepts]: Start accepts. Automaton has 306447 states and 339139 transitions. Word has length 374 [2018-10-24 15:01:58,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:01:58,287 INFO L481 AbstractCegarLoop]: Abstraction has 306447 states and 339139 transitions. [2018-10-24 15:01:58,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 15:01:58,287 INFO L276 IsEmpty]: Start isEmpty. Operand 306447 states and 339139 transitions. [2018-10-24 15:01:59,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2018-10-24 15:01:59,341 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:01:59,342 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 15:01:59,342 INFO L424 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:01:59,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:01:59,343 INFO L82 PathProgramCache]: Analyzing trace with hash 927021162, now seen corresponding path program 1 times [2018-10-24 15:01:59,343 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:01:59,343 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:01:59,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:59,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:01:59,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:01:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:01:59,823 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-24 15:02:00,103 WARN L179 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-24 15:02:00,378 WARN L179 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-10-24 15:02:01,006 WARN L179 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2018-10-24 15:02:01,796 WARN L179 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-10-24 15:02:02,106 WARN L179 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2018-10-24 15:02:02,519 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 192 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 15:02:02,520 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 15:02:02,520 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 15:02:02,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:02:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:02:02,682 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 15:02:02,837 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-10-24 15:02:02,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 15:02:02,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2018-10-24 15:02:02,860 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 15:02:02,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 15:02:02,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-10-24 15:02:02,861 INFO L87 Difference]: Start difference. First operand 306447 states and 339139 transitions. Second operand 10 states. [2018-10-24 15:02:03,335 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-24 15:02:16,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:02:16,787 INFO L93 Difference]: Finished difference Result 864588 states and 959150 transitions. [2018-10-24 15:02:16,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-24 15:02:16,788 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 374 [2018-10-24 15:02:16,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:02:16,788 INFO L225 Difference]: With dead ends: 864588 [2018-10-24 15:02:16,789 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 15:02:17,021 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2018-10-24 15:02:17,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 15:02:17,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 15:02:17,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 15:02:17,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 15:02:17,022 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 374 [2018-10-24 15:02:17,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:02:17,023 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 15:02:17,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 15:02:17,023 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 15:02:17,023 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 15:02:17,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 15:03:00,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:00,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:00,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:00,833 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:00,840 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:00,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:00,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:00,910 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:00,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:00,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:00,992 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:01,017 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:01,033 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:01,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:01,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:01,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:01,349 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:01,552 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:01,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:01,774 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:01,821 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:01,846 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:02,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:02,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:02,997 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:03,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:03,415 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:03,552 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:03,721 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:04,013 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:04,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:04,131 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:04,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:04,447 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:04,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:04,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:04,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:05,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:05,053 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:05,087 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:05,265 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:05,457 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:05,815 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:06,041 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:06,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:06,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:06,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:06,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:07,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:07,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:07,498 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:07,653 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:08,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:08,753 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:09,042 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:09,103 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:09,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:10,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:10,246 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:10,507 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:10,681 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:10,890 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:11,204 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:11,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:11,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:12,342 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:12,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:12,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:13,130 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:13,434 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:14,319 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:14,544 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:14,572 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:14,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:14,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:15,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:15,218 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:15,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:16,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:16,826 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:17,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:17,099 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:17,781 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:18,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:18,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:18,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:19,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:19,654 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:20,081 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:20,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:20,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:20,510 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:21,666 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:23,177 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:23,612 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:23,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:24,208 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:25,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:26,818 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:27,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:27,310 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:27,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:27,660 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:28,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:28,394 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:29,306 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:29,800 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:30,016 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:30,091 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:30,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:31,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:31,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:32,595 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:32,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:32,784 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:33,636 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:33,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:34,116 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:35,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:35,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:35,811 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:36,396 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:38,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:39,591 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:39,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:40,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:41,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:42,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:42,458 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:42,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:43,574 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:43,661 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:43,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:44,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:44,904 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:46,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:46,172 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:46,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:46,498 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:46,740 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:47,396 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:48,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:48,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:48,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:48,888 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:48,935 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:49,029 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:51,770 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:52,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:52,281 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:52,340 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:52,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:55,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:56,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:56,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:57,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:03:59,792 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:00,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:01,156 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:02,601 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:03,158 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:03,704 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:03,863 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:06,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:06,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:06,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:07,058 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:08,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:08,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:09,203 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:09,781 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:10,405 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:11,079 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:11,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:11,545 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:11,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:14,348 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:14,521 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:14,806 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:16,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:16,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:16,980 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:04:17,577 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-10-24 15:04:17,642 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 15:04:17,644 INFO L168 Benchmark]: Toolchain (without parser) took 229620.63 ms. Allocated memory was 1.5 GB in the beginning and 5.2 GB in the end (delta: 3.7 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 4.0 GB. Max. memory is 7.1 GB. [2018-10-24 15:04:17,645 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 15:04:17,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1207.24 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 15:04:17,646 INFO L168 Benchmark]: Boogie Procedure Inliner took 315.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -877.2 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-24 15:04:17,647 INFO L168 Benchmark]: Boogie Preprocessor took 123.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-10-24 15:04:17,648 INFO L168 Benchmark]: RCFGBuilder took 5759.08 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: 257.2 MB). Peak memory consumption was 257.2 MB. Max. memory is 7.1 GB. [2018-10-24 15:04:17,649 INFO L168 Benchmark]: TraceAbstraction took 222209.48 ms. Allocated memory was 2.3 GB in the beginning and 5.2 GB in the end (delta: 2.9 GB). Free memory was 1.9 GB in the beginning and 2.7 GB in the end (delta: -779.5 MB). Peak memory consumption was 3.8 GB. Max. memory is 7.1 GB. [2018-10-24 15:04:17,654 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1207.24 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 315.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -877.2 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5759.08 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: 257.2 MB). Peak memory consumption was 257.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 222209.48 ms. Allocated memory was 2.3 GB in the beginning and 5.2 GB in the end (delta: 2.9 GB). Free memory was 1.9 GB in the beginning and 2.7 GB in the end (delta: -779.5 MB). Peak memory consumption was 3.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1590]: 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 6481. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown