java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label26_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 21:51:41,494 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 21:51:41,498 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 21:51:41,511 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 21:51:41,511 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 21:51:41,512 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 21:51:41,513 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 21:51:41,515 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 21:51:41,517 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 21:51:41,518 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 21:51:41,519 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 21:51:41,519 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 21:51:41,520 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 21:51:41,521 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 21:51:41,522 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 21:51:41,523 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 21:51:41,524 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 21:51:41,526 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 21:51:41,528 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 21:51:41,530 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 21:51:41,531 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 21:51:41,532 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 21:51:41,535 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 21:51:41,535 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 21:51:41,536 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 21:51:41,537 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 21:51:41,538 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 21:51:41,538 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 21:51:41,539 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 21:51:41,541 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 21:51:41,541 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 21:51:41,542 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 21:51:41,542 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 21:51:41,542 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 21:51:41,543 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 21:51:41,544 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 21:51:41,544 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 21:51:41,561 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 21:51:41,561 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 21:51:41,567 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 21:51:41,567 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 21:51:41,568 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 21:51:41,568 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 21:51:41,568 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 21:51:41,570 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 21:51:41,570 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 21:51:41,570 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 21:51:41,571 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 21:51:41,571 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 21:51:41,571 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 21:51:41,571 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 21:51:41,571 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 21:51:41,572 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 21:51:41,572 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 21:51:41,572 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 21:51:41,572 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 21:51:41,572 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 21:51:41,573 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 21:51:41,573 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 21:51:41,573 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 21:51:41,573 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 21:51:41,573 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 21:51:41,573 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 21:51:41,575 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 21:51:41,575 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 21:51:41,625 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 21:51:41,638 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 21:51:41,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 21:51:41,643 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 21:51:41,643 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 21:51:41,644 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label26_true-unreach-call.c [2018-11-06 21:51:41,711 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e84c4b8a9/a10a7dd3e7434bc8945de6fdac0f3b43/FLAG0fc93efab [2018-11-06 21:51:42,420 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 21:51:42,421 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label26_true-unreach-call.c [2018-11-06 21:51:42,449 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e84c4b8a9/a10a7dd3e7434bc8945de6fdac0f3b43/FLAG0fc93efab [2018-11-06 21:51:42,472 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e84c4b8a9/a10a7dd3e7434bc8945de6fdac0f3b43 [2018-11-06 21:51:42,488 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 21:51:42,490 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 21:51:42,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 21:51:42,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 21:51:42,496 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 21:51:42,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:51:42" (1/1) ... [2018-11-06 21:51:42,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e2595a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:51:42, skipping insertion in model container [2018-11-06 21:51:42,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:51:42" (1/1) ... [2018-11-06 21:51:42,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 21:51:42,651 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 21:51:43,714 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 21:51:43,719 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 21:51:44,182 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 21:51:44,211 INFO L193 MainTranslator]: Completed translation [2018-11-06 21:51:44,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:51:44 WrapperNode [2018-11-06 21:51:44,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 21:51:44,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 21:51:44,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 21:51:44,214 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 21:51:44,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:51:44" (1/1) ... [2018-11-06 21:51:44,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:51:44" (1/1) ... [2018-11-06 21:51:44,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 21:51:44,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 21:51:44,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 21:51:44,706 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 21:51:44,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:51:44" (1/1) ... [2018-11-06 21:51:44,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:51:44" (1/1) ... [2018-11-06 21:51:44,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:51:44" (1/1) ... [2018-11-06 21:51:44,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:51:44" (1/1) ... [2018-11-06 21:51:44,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:51:44" (1/1) ... [2018-11-06 21:51:44,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:51:44" (1/1) ... [2018-11-06 21:51:44,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:51:44" (1/1) ... [2018-11-06 21:51:44,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 21:51:44,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 21:51:44,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 21:51:44,930 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 21:51:44,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:51:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 21:51:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 21:51:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 21:51:44,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 21:51:51,954 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 21:51:51,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:51:51 BoogieIcfgContainer [2018-11-06 21:51:51,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 21:51:51,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 21:51:51,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 21:51:51,960 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 21:51:51,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:51:42" (1/3) ... [2018-11-06 21:51:51,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ebd0464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:51:51, skipping insertion in model container [2018-11-06 21:51:51,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:51:44" (2/3) ... [2018-11-06 21:51:51,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ebd0464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:51:51, skipping insertion in model container [2018-11-06 21:51:51,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:51:51" (3/3) ... [2018-11-06 21:51:51,965 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label26_true-unreach-call.c [2018-11-06 21:51:51,976 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 21:51:51,986 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 21:51:52,005 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 21:51:52,050 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 21:51:52,051 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 21:51:52,051 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 21:51:52,051 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 21:51:52,051 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 21:51:52,052 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 21:51:52,052 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 21:51:52,052 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 21:51:52,052 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 21:51:52,089 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states. [2018-11-06 21:51:52,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-06 21:51:52,101 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:51:52,102 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] [2018-11-06 21:51:52,105 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:51:52,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:51:52,113 INFO L82 PathProgramCache]: Analyzing trace with hash 265969354, now seen corresponding path program 1 times [2018-11-06 21:51:52,115 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:51:52,115 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:51:52,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:51:52,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:51:52,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:51:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:51:52,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:51:52,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:51:52,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:51:52,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:51:52,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:51:52,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:51:52,798 INFO L87 Difference]: Start difference. First operand 758 states. Second operand 4 states. [2018-11-06 21:51:52,969 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-06 21:52:06,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:52:06,591 INFO L93 Difference]: Finished difference Result 3599 states and 7034 transitions. [2018-11-06 21:52:06,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 21:52:06,593 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2018-11-06 21:52:06,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:52:06,640 INFO L225 Difference]: With dead ends: 3599 [2018-11-06 21:52:06,641 INFO L226 Difference]: Without dead ends: 2831 [2018-11-06 21:52:06,647 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:52:06,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2018-11-06 21:52:06,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2831. [2018-11-06 21:52:06,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2831 states. [2018-11-06 21:52:06,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 4101 transitions. [2018-11-06 21:52:06,815 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 4101 transitions. Word has length 63 [2018-11-06 21:52:06,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:52:06,815 INFO L480 AbstractCegarLoop]: Abstraction has 2831 states and 4101 transitions. [2018-11-06 21:52:06,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:52:06,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 4101 transitions. [2018-11-06 21:52:06,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-06 21:52:06,829 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:52:06,830 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:52:06,830 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:52:06,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:52:06,830 INFO L82 PathProgramCache]: Analyzing trace with hash -577281741, now seen corresponding path program 1 times [2018-11-06 21:52:06,831 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:52:06,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:52:06,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:52:06,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:52:06,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:52:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:52:07,404 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 11 [2018-11-06 21:52:07,509 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-11-06 21:52:07,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:52:07,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:52:07,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 21:52:07,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 21:52:07,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:52:07,513 INFO L87 Difference]: Start difference. First operand 2831 states and 4101 transitions. Second operand 5 states. [2018-11-06 21:52:17,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:52:17,441 INFO L93 Difference]: Finished difference Result 8424 states and 12649 transitions. [2018-11-06 21:52:17,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 21:52:17,442 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 225 [2018-11-06 21:52:17,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:52:17,470 INFO L225 Difference]: With dead ends: 8424 [2018-11-06 21:52:17,470 INFO L226 Difference]: Without dead ends: 5595 [2018-11-06 21:52:17,476 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-06 21:52:17,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5595 states. [2018-11-06 21:52:17,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5595 to 5595. [2018-11-06 21:52:17,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5595 states. [2018-11-06 21:52:17,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 7136 transitions. [2018-11-06 21:52:17,592 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 7136 transitions. Word has length 225 [2018-11-06 21:52:17,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:52:17,593 INFO L480 AbstractCegarLoop]: Abstraction has 5595 states and 7136 transitions. [2018-11-06 21:52:17,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 21:52:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 7136 transitions. [2018-11-06 21:52:17,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-11-06 21:52:17,606 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:52:17,606 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, 3, 3, 3, 3, 3, 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] [2018-11-06 21:52:17,607 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:52:17,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:52:17,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1197458537, now seen corresponding path program 1 times [2018-11-06 21:52:17,607 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:52:17,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:52:17,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:52:17,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:52:17,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:52:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:52:18,090 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 121 proven. 4 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-06 21:52:18,091 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:52:18,091 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:52:18,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:52:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:52:18,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:52:18,310 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:52:18,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:52:18,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-11-06 21:52:18,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:52:18,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:52:18,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:52:18,343 INFO L87 Difference]: Start difference. First operand 5595 states and 7136 transitions. Second operand 4 states. [2018-11-06 21:52:25,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:52:25,287 INFO L93 Difference]: Finished difference Result 16041 states and 21992 transitions. [2018-11-06 21:52:25,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:52:25,288 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2018-11-06 21:52:25,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:52:25,338 INFO L225 Difference]: With dead ends: 16041 [2018-11-06 21:52:25,338 INFO L226 Difference]: Without dead ends: 11139 [2018-11-06 21:52:25,348 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:52:25,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11139 states. [2018-11-06 21:52:25,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11139 to 7668. [2018-11-06 21:52:25,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7668 states. [2018-11-06 21:52:25,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7668 states to 7668 states and 9572 transitions. [2018-11-06 21:52:25,529 INFO L78 Accepts]: Start accepts. Automaton has 7668 states and 9572 transitions. Word has length 314 [2018-11-06 21:52:25,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:52:25,530 INFO L480 AbstractCegarLoop]: Abstraction has 7668 states and 9572 transitions. [2018-11-06 21:52:25,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:52:25,530 INFO L276 IsEmpty]: Start isEmpty. Operand 7668 states and 9572 transitions. [2018-11-06 21:52:25,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-11-06 21:52:25,538 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:52:25,539 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:52:25,539 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:52:25,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:52:25,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1900254716, now seen corresponding path program 1 times [2018-11-06 21:52:25,540 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:52:25,540 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:52:25,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:52:25,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:52:25,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:52:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:52:26,223 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 198 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-06 21:52:26,223 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:52:26,223 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:52:26,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:52:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:52:26,433 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:52:26,570 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-11-06 21:52:26,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:52:26,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2018-11-06 21:52:26,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 21:52:26,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 21:52:26,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-06 21:52:26,593 INFO L87 Difference]: Start difference. First operand 7668 states and 9572 transitions. Second operand 6 states. [2018-11-06 21:52:36,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:52:36,709 INFO L93 Difference]: Finished difference Result 23637 states and 30091 transitions. [2018-11-06 21:52:36,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 21:52:36,710 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 337 [2018-11-06 21:52:36,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:52:36,764 INFO L225 Difference]: With dead ends: 23637 [2018-11-06 21:52:36,765 INFO L226 Difference]: Without dead ends: 15278 [2018-11-06 21:52:36,778 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 336 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-11-06 21:52:36,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15278 states. [2018-11-06 21:52:36,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15278 to 11813. [2018-11-06 21:52:36,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11813 states. [2018-11-06 21:52:36,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11813 states to 11813 states and 13144 transitions. [2018-11-06 21:52:36,985 INFO L78 Accepts]: Start accepts. Automaton has 11813 states and 13144 transitions. Word has length 337 [2018-11-06 21:52:36,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:52:36,986 INFO L480 AbstractCegarLoop]: Abstraction has 11813 states and 13144 transitions. [2018-11-06 21:52:36,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 21:52:36,986 INFO L276 IsEmpty]: Start isEmpty. Operand 11813 states and 13144 transitions. [2018-11-06 21:52:37,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1039 [2018-11-06 21:52:37,025 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:52:37,026 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:52:37,026 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:52:37,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:52:37,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1698754471, now seen corresponding path program 1 times [2018-11-06 21:52:37,027 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:52:37,027 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:52:37,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:52:37,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:52:37,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:52:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:52:38,654 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 487 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2018-11-06 21:52:38,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:52:38,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:52:38,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:52:38,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:52:38,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:52:38,656 INFO L87 Difference]: Start difference. First operand 11813 states and 13144 transitions. Second operand 4 states. [2018-11-06 21:52:43,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:52:43,878 INFO L93 Difference]: Finished difference Result 28476 states and 33059 transitions. [2018-11-06 21:52:43,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:52:43,878 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1038 [2018-11-06 21:52:43,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:52:43,910 INFO L225 Difference]: With dead ends: 28476 [2018-11-06 21:52:43,910 INFO L226 Difference]: Without dead ends: 17356 [2018-11-06 21:52:43,925 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:52:43,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17356 states. [2018-11-06 21:52:44,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17356 to 14577. [2018-11-06 21:52:44,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14577 states. [2018-11-06 21:52:44,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14577 states to 14577 states and 16291 transitions. [2018-11-06 21:52:44,134 INFO L78 Accepts]: Start accepts. Automaton has 14577 states and 16291 transitions. Word has length 1038 [2018-11-06 21:52:44,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:52:44,136 INFO L480 AbstractCegarLoop]: Abstraction has 14577 states and 16291 transitions. [2018-11-06 21:52:44,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:52:44,137 INFO L276 IsEmpty]: Start isEmpty. Operand 14577 states and 16291 transitions. [2018-11-06 21:52:44,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1053 [2018-11-06 21:52:44,181 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:52:44,182 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:52:44,182 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:52:44,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:52:44,183 INFO L82 PathProgramCache]: Analyzing trace with hash -77246678, now seen corresponding path program 1 times [2018-11-06 21:52:44,183 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:52:44,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:52:44,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:52:44,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:52:44,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:52:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:52:45,291 WARN L179 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2018-11-06 21:52:45,878 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-11-06 21:52:45,879 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:52:45,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:52:45,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:52:45,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:52:45,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:52:45,880 INFO L87 Difference]: Start difference. First operand 14577 states and 16291 transitions. Second operand 4 states. [2018-11-06 21:52:51,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:52:51,832 INFO L93 Difference]: Finished difference Result 49882 states and 56668 transitions. [2018-11-06 21:52:51,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:52:51,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1052 [2018-11-06 21:52:51,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:52:51,891 INFO L225 Difference]: With dead ends: 49882 [2018-11-06 21:52:51,891 INFO L226 Difference]: Without dead ends: 35998 [2018-11-06 21:52:51,915 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:52:51,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35998 states. [2018-11-06 21:52:52,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35998 to 35307. [2018-11-06 21:52:52,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35307 states. [2018-11-06 21:52:52,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35307 states to 35307 states and 38772 transitions. [2018-11-06 21:52:52,609 INFO L78 Accepts]: Start accepts. Automaton has 35307 states and 38772 transitions. Word has length 1052 [2018-11-06 21:52:52,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:52:52,611 INFO L480 AbstractCegarLoop]: Abstraction has 35307 states and 38772 transitions. [2018-11-06 21:52:52,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:52:52,611 INFO L276 IsEmpty]: Start isEmpty. Operand 35307 states and 38772 transitions. [2018-11-06 21:52:52,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1180 [2018-11-06 21:52:52,639 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:52:52,640 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:52:52,641 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:52:52,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:52:52,645 INFO L82 PathProgramCache]: Analyzing trace with hash -519054123, now seen corresponding path program 1 times [2018-11-06 21:52:52,645 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:52:52,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:52:52,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:52:52,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:52:52,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:52:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:52:53,526 WARN L179 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-11-06 21:52:54,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1213 backedges. 854 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2018-11-06 21:52:54,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:52:54,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:52:54,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:52:54,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:52:54,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:52:54,109 INFO L87 Difference]: Start difference. First operand 35307 states and 38772 transitions. Second operand 4 states. [2018-11-06 21:52:59,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:52:59,147 INFO L93 Difference]: Finished difference Result 78904 states and 87225 transitions. [2018-11-06 21:52:59,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:52:59,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1179 [2018-11-06 21:52:59,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:52:59,198 INFO L225 Difference]: With dead ends: 78904 [2018-11-06 21:52:59,199 INFO L226 Difference]: Without dead ends: 44290 [2018-11-06 21:52:59,237 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:52:59,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44290 states. [2018-11-06 21:52:59,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44290 to 43599. [2018-11-06 21:52:59,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43599 states. [2018-11-06 21:52:59,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43599 states to 43599 states and 47211 transitions. [2018-11-06 21:52:59,709 INFO L78 Accepts]: Start accepts. Automaton has 43599 states and 47211 transitions. Word has length 1179 [2018-11-06 21:52:59,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:52:59,711 INFO L480 AbstractCegarLoop]: Abstraction has 43599 states and 47211 transitions. [2018-11-06 21:52:59,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:52:59,711 INFO L276 IsEmpty]: Start isEmpty. Operand 43599 states and 47211 transitions. [2018-11-06 21:52:59,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1194 [2018-11-06 21:52:59,740 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:52:59,741 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:52:59,741 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:52:59,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:52:59,742 INFO L82 PathProgramCache]: Analyzing trace with hash -733398478, now seen corresponding path program 1 times [2018-11-06 21:52:59,742 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:52:59,742 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:52:59,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:52:59,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:52:59,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:52:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:53:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2018-11-06 21:53:01,454 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:53:01,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:53:01,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 21:53:01,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 21:53:01,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:53:01,456 INFO L87 Difference]: Start difference. First operand 43599 states and 47211 transitions. Second operand 3 states. [2018-11-06 21:53:04,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:53:04,708 INFO L93 Difference]: Finished difference Result 86505 states and 93728 transitions. [2018-11-06 21:53:04,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 21:53:04,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1193 [2018-11-06 21:53:04,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:53:04,763 INFO L225 Difference]: With dead ends: 86505 [2018-11-06 21:53:04,763 INFO L226 Difference]: Without dead ends: 43599 [2018-11-06 21:53:04,796 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:53:04,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43599 states. [2018-11-06 21:53:05,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43599 to 43599. [2018-11-06 21:53:05,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43599 states. [2018-11-06 21:53:05,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43599 states to 43599 states and 46514 transitions. [2018-11-06 21:53:05,253 INFO L78 Accepts]: Start accepts. Automaton has 43599 states and 46514 transitions. Word has length 1193 [2018-11-06 21:53:05,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:53:05,254 INFO L480 AbstractCegarLoop]: Abstraction has 43599 states and 46514 transitions. [2018-11-06 21:53:05,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 21:53:05,254 INFO L276 IsEmpty]: Start isEmpty. Operand 43599 states and 46514 transitions. [2018-11-06 21:53:05,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1282 [2018-11-06 21:53:05,290 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:53:05,291 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:53:05,292 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:53:05,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:53:05,292 INFO L82 PathProgramCache]: Analyzing trace with hash 844390392, now seen corresponding path program 1 times [2018-11-06 21:53:05,293 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:53:05,293 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:53:05,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:53:05,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:53:05,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:53:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:53:06,295 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-06 21:53:06,550 WARN L179 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-11-06 21:53:09,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 706 proven. 697 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2018-11-06 21:53:09,058 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:53:09,058 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:53:09,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:53:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:53:09,338 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:53:10,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 915 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2018-11-06 21:53:10,201 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:53:10,201 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2018-11-06 21:53:10,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-06 21:53:10,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-06 21:53:10,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-11-06 21:53:10,203 INFO L87 Difference]: Start difference. First operand 43599 states and 46514 transitions. Second operand 10 states. [2018-11-06 21:53:32,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:53:32,222 INFO L93 Difference]: Finished difference Result 219947 states and 236540 transitions. [2018-11-06 21:53:32,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-06 21:53:32,223 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1281 [2018-11-06 21:53:32,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:53:32,407 INFO L225 Difference]: With dead ends: 219947 [2018-11-06 21:53:32,408 INFO L226 Difference]: Without dead ends: 136342 [2018-11-06 21:53:32,458 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1315 GetRequests, 1293 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2018-11-06 21:53:32,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136342 states. [2018-11-06 21:53:33,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136342 to 55310. [2018-11-06 21:53:33,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55310 states. [2018-11-06 21:53:33,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55310 states to 55310 states and 57453 transitions. [2018-11-06 21:53:33,267 INFO L78 Accepts]: Start accepts. Automaton has 55310 states and 57453 transitions. Word has length 1281 [2018-11-06 21:53:33,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:53:33,268 INFO L480 AbstractCegarLoop]: Abstraction has 55310 states and 57453 transitions. [2018-11-06 21:53:33,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-06 21:53:33,269 INFO L276 IsEmpty]: Start isEmpty. Operand 55310 states and 57453 transitions. [2018-11-06 21:53:33,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1499 [2018-11-06 21:53:33,313 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:53:33,315 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:53:33,315 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:53:33,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:53:33,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1841339624, now seen corresponding path program 1 times [2018-11-06 21:53:33,316 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:53:33,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:53:33,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:53:33,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:53:33,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:53:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:53:35,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2501 backedges. 1697 proven. 0 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2018-11-06 21:53:35,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:53:35,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:53:35,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:53:35,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:53:35,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:53:35,606 INFO L87 Difference]: Start difference. First operand 55310 states and 57453 transitions. Second operand 4 states. [2018-11-06 21:53:39,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:53:39,946 INFO L93 Difference]: Finished difference Result 112691 states and 117187 transitions. [2018-11-06 21:53:39,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:53:39,947 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1498 [2018-11-06 21:53:39,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:53:40,003 INFO L225 Difference]: With dead ends: 112691 [2018-11-06 21:53:40,003 INFO L226 Difference]: Without dead ends: 58074 [2018-11-06 21:53:40,033 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:53:40,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58074 states. [2018-11-06 21:53:40,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58074 to 57383. [2018-11-06 21:53:40,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57383 states. [2018-11-06 21:53:40,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57383 states to 57383 states and 59242 transitions. [2018-11-06 21:53:40,738 INFO L78 Accepts]: Start accepts. Automaton has 57383 states and 59242 transitions. Word has length 1498 [2018-11-06 21:53:40,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:53:40,739 INFO L480 AbstractCegarLoop]: Abstraction has 57383 states and 59242 transitions. [2018-11-06 21:53:40,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:53:40,739 INFO L276 IsEmpty]: Start isEmpty. Operand 57383 states and 59242 transitions. [2018-11-06 21:53:40,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1552 [2018-11-06 21:53:40,772 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:53:40,773 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:53:40,773 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:53:40,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:53:40,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1708948075, now seen corresponding path program 1 times [2018-11-06 21:53:40,774 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:53:40,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:53:40,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:53:40,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:53:40,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:53:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:53:41,883 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-11-06 21:53:46,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2713 backedges. 1867 proven. 499 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2018-11-06 21:53:46,538 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:53:46,538 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:53:46,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:53:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:53:46,888 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:53:49,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2713 backedges. 1146 proven. 0 refuted. 0 times theorem prover too weak. 1567 trivial. 0 not checked. [2018-11-06 21:53:49,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:53:49,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 12 [2018-11-06 21:53:49,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-06 21:53:49,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-06 21:53:49,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-06 21:53:49,718 INFO L87 Difference]: Start difference. First operand 57383 states and 59242 transitions. Second operand 13 states. [2018-11-06 21:54:06,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:54:06,097 INFO L93 Difference]: Finished difference Result 118069 states and 121832 transitions. [2018-11-06 21:54:06,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-06 21:54:06,098 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1551 [2018-11-06 21:54:06,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:54:06,155 INFO L225 Difference]: With dead ends: 118069 [2018-11-06 21:54:06,155 INFO L226 Difference]: Without dead ends: 57225 [2018-11-06 21:54:06,184 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1575 GetRequests, 1551 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=198, Invalid=452, Unknown=0, NotChecked=0, Total=650 [2018-11-06 21:54:06,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57225 states. [2018-11-06 21:54:06,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57225 to 53229. [2018-11-06 21:54:06,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53229 states. [2018-11-06 21:54:06,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53229 states to 53229 states and 54838 transitions. [2018-11-06 21:54:06,651 INFO L78 Accepts]: Start accepts. Automaton has 53229 states and 54838 transitions. Word has length 1551 [2018-11-06 21:54:06,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:54:06,652 INFO L480 AbstractCegarLoop]: Abstraction has 53229 states and 54838 transitions. [2018-11-06 21:54:06,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-06 21:54:06,652 INFO L276 IsEmpty]: Start isEmpty. Operand 53229 states and 54838 transitions. [2018-11-06 21:54:06,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1596 [2018-11-06 21:54:06,682 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:54:06,683 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 21:54:06,683 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:54:06,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:54:06,684 INFO L82 PathProgramCache]: Analyzing trace with hash 11725508, now seen corresponding path program 1 times [2018-11-06 21:54:06,684 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:54:06,684 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:54:06,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:54:06,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:54:06,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:54:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:54:08,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2395 backedges. 1659 proven. 0 refuted. 0 times theorem prover too weak. 736 trivial. 0 not checked. [2018-11-06 21:54:08,512 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:54:08,512 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:54:08,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:54:08,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:54:08,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:54:08,514 INFO L87 Difference]: Start difference. First operand 53229 states and 54838 transitions. Second operand 4 states. [2018-11-06 21:54:12,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:54:12,898 INFO L93 Difference]: Finished difference Result 116130 states and 119873 transitions. [2018-11-06 21:54:12,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:54:12,898 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1595 [2018-11-06 21:54:12,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:54:12,955 INFO L225 Difference]: With dead ends: 116130 [2018-11-06 21:54:12,955 INFO L226 Difference]: Without dead ends: 62901 [2018-11-06 21:54:12,983 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:54:13,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62901 states. [2018-11-06 21:54:13,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62901 to 62901. [2018-11-06 21:54:13,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62901 states. [2018-11-06 21:54:13,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62901 states to 62901 states and 64753 transitions. [2018-11-06 21:54:13,458 INFO L78 Accepts]: Start accepts. Automaton has 62901 states and 64753 transitions. Word has length 1595 [2018-11-06 21:54:13,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:54:13,459 INFO L480 AbstractCegarLoop]: Abstraction has 62901 states and 64753 transitions. [2018-11-06 21:54:13,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:54:13,459 INFO L276 IsEmpty]: Start isEmpty. Operand 62901 states and 64753 transitions. [2018-11-06 21:54:13,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1631 [2018-11-06 21:54:13,498 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:54:13,499 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:54:13,500 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:54:13,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:54:13,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1836318839, now seen corresponding path program 1 times [2018-11-06 21:54:13,500 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:54:13,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:54:13,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:54:13,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:54:13,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:54:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:54:14,645 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-11-06 21:54:15,016 WARN L179 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 13 [2018-11-06 21:54:18,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3613 backedges. 2104 proven. 1047 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2018-11-06 21:54:18,520 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:54:18,520 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:54:18,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:54:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:54:18,886 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:54:19,991 INFO L134 CoverageAnalysis]: Checked inductivity of 3613 backedges. 2405 proven. 0 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2018-11-06 21:54:20,013 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:54:20,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2018-11-06 21:54:20,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-06 21:54:20,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-06 21:54:20,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-11-06 21:54:20,016 INFO L87 Difference]: Start difference. First operand 62901 states and 64753 transitions. Second operand 12 states. [2018-11-06 21:54:34,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:54:34,240 INFO L93 Difference]: Finished difference Result 176568 states and 182255 transitions. [2018-11-06 21:54:34,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-06 21:54:34,241 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 1630 [2018-11-06 21:54:34,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:54:34,354 INFO L225 Difference]: With dead ends: 176568 [2018-11-06 21:54:34,354 INFO L226 Difference]: Without dead ends: 114360 [2018-11-06 21:54:34,397 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1668 GetRequests, 1641 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=187, Invalid=515, Unknown=0, NotChecked=0, Total=702 [2018-11-06 21:54:34,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114360 states. [2018-11-06 21:54:35,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114360 to 80867. [2018-11-06 21:54:35,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80867 states. [2018-11-06 21:54:35,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80867 states to 80867 states and 83041 transitions. [2018-11-06 21:54:35,226 INFO L78 Accepts]: Start accepts. Automaton has 80867 states and 83041 transitions. Word has length 1630 [2018-11-06 21:54:35,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:54:35,227 INFO L480 AbstractCegarLoop]: Abstraction has 80867 states and 83041 transitions. [2018-11-06 21:54:35,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-06 21:54:35,227 INFO L276 IsEmpty]: Start isEmpty. Operand 80867 states and 83041 transitions. [2018-11-06 21:54:35,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1658 [2018-11-06 21:54:35,271 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:54:35,273 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:54:35,273 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:54:35,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:54:35,274 INFO L82 PathProgramCache]: Analyzing trace with hash 927804250, now seen corresponding path program 1 times [2018-11-06 21:54:35,274 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:54:35,274 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:54:35,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:54:35,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:54:35,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:54:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:54:37,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2806 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 2502 trivial. 0 not checked. [2018-11-06 21:54:37,432 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:54:37,433 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:54:37,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:54:37,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:54:37,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:54:37,434 INFO L87 Difference]: Start difference. First operand 80867 states and 83041 transitions. Second operand 4 states. [2018-11-06 21:54:42,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:54:42,133 INFO L93 Difference]: Finished difference Result 163114 states and 167487 transitions. [2018-11-06 21:54:42,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:54:42,133 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1657 [2018-11-06 21:54:42,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:54:42,228 INFO L225 Difference]: With dead ends: 163114 [2018-11-06 21:54:42,228 INFO L226 Difference]: Without dead ends: 80864 [2018-11-06 21:54:42,284 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:54:42,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80864 states. [2018-11-06 21:54:42,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80864 to 78791. [2018-11-06 21:54:42,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78791 states. [2018-11-06 21:54:42,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78791 states to 78791 states and 80665 transitions. [2018-11-06 21:54:42,966 INFO L78 Accepts]: Start accepts. Automaton has 78791 states and 80665 transitions. Word has length 1657 [2018-11-06 21:54:42,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:54:42,967 INFO L480 AbstractCegarLoop]: Abstraction has 78791 states and 80665 transitions. [2018-11-06 21:54:42,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:54:42,967 INFO L276 IsEmpty]: Start isEmpty. Operand 78791 states and 80665 transitions. [2018-11-06 21:54:43,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1755 [2018-11-06 21:54:43,007 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:54:43,008 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 21:54:43,008 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:54:43,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:54:43,009 INFO L82 PathProgramCache]: Analyzing trace with hash 521167279, now seen corresponding path program 1 times [2018-11-06 21:54:43,009 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:54:43,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:54:43,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:54:43,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:54:43,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:54:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:54:45,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2916 backedges. 2229 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2018-11-06 21:54:45,651 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:54:45,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:54:45,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:54:45,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:54:45,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:54:45,652 INFO L87 Difference]: Start difference. First operand 78791 states and 80665 transitions. Second operand 4 states. [2018-11-06 21:54:49,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:54:49,921 INFO L93 Difference]: Finished difference Result 165872 states and 169795 transitions. [2018-11-06 21:54:49,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:54:49,921 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1754 [2018-11-06 21:54:49,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:54:50,002 INFO L225 Difference]: With dead ends: 165872 [2018-11-06 21:54:50,003 INFO L226 Difference]: Without dead ends: 87082 [2018-11-06 21:54:50,025 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:54:50,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87082 states. [2018-11-06 21:54:50,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87082 to 82936. [2018-11-06 21:54:50,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82936 states. [2018-11-06 21:54:50,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82936 states to 82936 states and 84787 transitions. [2018-11-06 21:54:50,771 INFO L78 Accepts]: Start accepts. Automaton has 82936 states and 84787 transitions. Word has length 1754 [2018-11-06 21:54:50,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:54:50,772 INFO L480 AbstractCegarLoop]: Abstraction has 82936 states and 84787 transitions. [2018-11-06 21:54:50,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:54:50,772 INFO L276 IsEmpty]: Start isEmpty. Operand 82936 states and 84787 transitions. [2018-11-06 21:54:50,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1881 [2018-11-06 21:54:50,829 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:54:50,830 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 21:54:50,830 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:54:50,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:54:50,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1673547804, now seen corresponding path program 1 times [2018-11-06 21:54:50,831 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:54:50,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:54:50,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:54:50,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:54:50,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:54:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:54:53,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3273 backedges. 2569 proven. 0 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2018-11-06 21:54:53,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:54:53,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:54:53,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:54:53,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:54:53,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:54:53,399 INFO L87 Difference]: Start difference. First operand 82936 states and 84787 transitions. Second operand 4 states. [2018-11-06 21:54:58,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:54:58,330 INFO L93 Difference]: Finished difference Result 192129 states and 196778 transitions. [2018-11-06 21:54:58,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:54:58,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1880 [2018-11-06 21:54:58,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:54:58,449 INFO L225 Difference]: With dead ends: 192129 [2018-11-06 21:54:58,449 INFO L226 Difference]: Without dead ends: 109886 [2018-11-06 21:54:58,507 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:54:58,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109886 states. [2018-11-06 21:54:59,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109886 to 88464. [2018-11-06 21:54:59,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88464 states. [2018-11-06 21:54:59,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88464 states to 88464 states and 90393 transitions. [2018-11-06 21:54:59,396 INFO L78 Accepts]: Start accepts. Automaton has 88464 states and 90393 transitions. Word has length 1880 [2018-11-06 21:54:59,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:54:59,397 INFO L480 AbstractCegarLoop]: Abstraction has 88464 states and 90393 transitions. [2018-11-06 21:54:59,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:54:59,397 INFO L276 IsEmpty]: Start isEmpty. Operand 88464 states and 90393 transitions. [2018-11-06 21:54:59,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1916 [2018-11-06 21:54:59,453 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:54:59,454 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 21:54:59,454 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:54:59,454 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:54:59,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1039127322, now seen corresponding path program 1 times [2018-11-06 21:54:59,455 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:54:59,455 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:54:59,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:54:59,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:54:59,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:54:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:55:00,712 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-11-06 21:55:02,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3827 backedges. 2926 proven. 108 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2018-11-06 21:55:02,471 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:55:02,472 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:55:02,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:55:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:55:02,881 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:55:03,944 WARN L179 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 442 DAG size of output: 30 [2018-11-06 21:55:06,247 INFO L134 CoverageAnalysis]: Checked inductivity of 3827 backedges. 428 proven. 0 refuted. 0 times theorem prover too weak. 3399 trivial. 0 not checked. [2018-11-06 21:55:06,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:55:06,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-11-06 21:55:06,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 21:55:06,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 21:55:06,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-06 21:55:06,269 INFO L87 Difference]: Start difference. First operand 88464 states and 90393 transitions. Second operand 6 states. [2018-11-06 21:55:20,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:55:20,198 INFO L93 Difference]: Finished difference Result 199725 states and 204151 transitions. [2018-11-06 21:55:20,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 21:55:20,200 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1915 [2018-11-06 21:55:20,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:55:20,202 INFO L225 Difference]: With dead ends: 199725 [2018-11-06 21:55:20,202 INFO L226 Difference]: Without dead ends: 0 [2018-11-06 21:55:20,249 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1921 GetRequests, 1916 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-06 21:55:20,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-06 21:55:20,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-06 21:55:20,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-06 21:55:20,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-06 21:55:20,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1915 [2018-11-06 21:55:20,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:55:20,250 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-06 21:55:20,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 21:55:20,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-06 21:55:20,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-06 21:55:20,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-06 21:55:20,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,450 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,451 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,460 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,555 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,582 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,596 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,605 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,636 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,658 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,784 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,859 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:20,869 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,143 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,172 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,195 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,196 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,197 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,198 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,240 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,299 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,339 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,340 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,341 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,393 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,394 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,818 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,862 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,863 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:21,882 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,015 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,133 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,411 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,434 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,722 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,739 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,741 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,799 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,814 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,815 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,821 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,833 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,961 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,961 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:22,962 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,022 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,153 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,239 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,336 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,337 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,398 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,578 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,587 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,601 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,992 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:23,993 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,074 WARN L179 SmtUtils]: Spent 3.81 s on a formula simplification. DAG size of input: 1240 DAG size of output: 828 [2018-11-06 21:55:24,251 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,254 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,255 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,260 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,373 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,378 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,479 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,489 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,522 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,543 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,610 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,627 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,749 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,882 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,922 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,931 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,953 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:24,981 WARN L179 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 413 [2018-11-06 21:55:25,037 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,041 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,091 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,103 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,109 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,124 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,124 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,127 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,127 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,225 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,354 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,355 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,355 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,402 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,402 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,403 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,439 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,439 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,465 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,502 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,508 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,528 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,768 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,787 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,787 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,796 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,922 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:25,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,002 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,013 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,059 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,071 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,073 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,197 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,197 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,198 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,257 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,260 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,312 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,312 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,316 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,402 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,468 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,668 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,802 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,938 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,939 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,940 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:26,940 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,039 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,183 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,191 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,207 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,566 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,648 WARN L179 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 1237 DAG size of output: 827 [2018-11-06 21:55:27,666 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,692 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,776 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,831 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,837 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,846 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,873 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,890 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,894 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:27,911 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,006 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,013 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,018 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,133 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,285 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,286 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,340 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,348 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,374 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,455 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,482 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,482 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,499 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,499 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,499 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,509 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,538 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,538 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,539 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,578 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,821 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,864 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,942 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:55:28,957 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-11-06 21:55:29,019 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-11-06 21:55:29,021 INFO L168 Benchmark]: Toolchain (without parser) took 226532.25 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-11-06 21:55:29,022 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 21:55:29,023 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1721.53 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-06 21:55:29,023 INFO L168 Benchmark]: Boogie Procedure Inliner took 491.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 762.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -922.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-11-06 21:55:29,024 INFO L168 Benchmark]: Boogie Preprocessor took 223.85 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: 29.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2018-11-06 21:55:29,025 INFO L168 Benchmark]: RCFGBuilder took 7026.35 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 525.1 MB). Peak memory consumption was 525.1 MB. Max. memory is 7.1 GB. [2018-11-06 21:55:29,026 INFO L168 Benchmark]: TraceAbstraction took 217063.41 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.6 GB in the beginning and 2.8 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-11-06 21:55:29,031 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1721.53 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 491.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 762.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -922.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 223.85 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: 29.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7026.35 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 525.1 MB). Peak memory consumption was 525.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 217063.41 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.6 GB in the beginning and 2.8 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 195]: 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 872. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown