java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 20:50:17,388 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 20:50:17,390 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 20:50:17,402 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 20:50:17,403 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 20:50:17,404 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 20:50:17,405 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 20:50:17,407 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 20:50:17,409 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 20:50:17,410 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 20:50:17,411 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 20:50:17,411 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 20:50:17,413 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 20:50:17,414 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 20:50:17,415 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 20:50:17,416 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 20:50:17,417 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 20:50:17,419 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 20:50:17,421 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 20:50:17,423 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 20:50:17,424 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 20:50:17,425 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 20:50:17,428 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 20:50:17,428 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 20:50:17,429 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 20:50:17,430 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 20:50:17,431 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 20:50:17,432 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 20:50:17,433 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 20:50:17,434 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 20:50:17,434 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 20:50:17,435 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-23 20:50:17,438 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-23 20:50:17,454 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 20:50:17,455 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 20:50:17,455 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 20:50:17,456 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 20:50:17,456 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 20:50:17,457 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 20:50:17,457 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 20:50:17,457 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 20:50:17,457 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 20:50:17,458 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 20:50:17,458 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 20:50:17,458 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 20:50:17,458 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 20:50:17,458 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 20:50:17,459 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 20:50:17,459 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 20:50:17,459 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 20:50:17,459 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 20:50:17,460 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 20:50:17,460 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 20:50:17,460 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 20:50:17,460 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 20:50:17,460 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 20:50:17,461 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 20:50:17,461 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 20:50:17,461 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 20:50:17,461 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 20:50:17,462 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 20:50:17,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 20:50:17,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 20:50:17,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 20:50:17,530 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 20:50:17,530 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 20:50:17,531 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label05_true-unreach-call.c [2018-10-23 20:50:17,599 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/527b5077b/8287cd48fe4441648600111dc74d8683/FLAGb87f75f48 [2018-10-23 20:50:18,285 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 20:50:18,286 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label05_true-unreach-call.c [2018-10-23 20:50:18,315 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/527b5077b/8287cd48fe4441648600111dc74d8683/FLAGb87f75f48 [2018-10-23 20:50:18,338 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/527b5077b/8287cd48fe4441648600111dc74d8683 [2018-10-23 20:50:18,352 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 20:50:18,354 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 20:50:18,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 20:50:18,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 20:50:18,363 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 20:50:18,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:50:18" (1/1) ... [2018-10-23 20:50:18,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c2806f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:50:18, skipping insertion in model container [2018-10-23 20:50:18,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:50:18" (1/1) ... [2018-10-23 20:50:18,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 20:50:18,524 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 20:50:19,621 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:50:19,626 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 20:50:20,090 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:50:20,120 INFO L193 MainTranslator]: Completed translation [2018-10-23 20:50:20,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:50:20 WrapperNode [2018-10-23 20:50:20,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 20:50:20,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 20:50:20,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 20:50:20,123 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 20:50:20,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:50:20" (1/1) ... [2018-10-23 20:50:20,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:50:20" (1/1) ... [2018-10-23 20:50:20,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 20:50:20,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 20:50:20,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 20:50:20,619 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 20:50:20,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:50:20" (1/1) ... [2018-10-23 20:50:20,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:50:20" (1/1) ... [2018-10-23 20:50:20,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:50:20" (1/1) ... [2018-10-23 20:50:20,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:50:20" (1/1) ... [2018-10-23 20:50:20,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:50:20" (1/1) ... [2018-10-23 20:50:20,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:50:20" (1/1) ... [2018-10-23 20:50:20,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:50:20" (1/1) ... [2018-10-23 20:50:20,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 20:50:20,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 20:50:20,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 20:50:20,834 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 20:50:20,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:50:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 20:50:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 20:50:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 20:50:20,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 20:50:28,381 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 20:50:28,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:50:28 BoogieIcfgContainer [2018-10-23 20:50:28,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 20:50:28,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 20:50:28,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 20:50:28,387 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 20:50:28,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:50:18" (1/3) ... [2018-10-23 20:50:28,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e3e7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:50:28, skipping insertion in model container [2018-10-23 20:50:28,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:50:20" (2/3) ... [2018-10-23 20:50:28,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e3e7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:50:28, skipping insertion in model container [2018-10-23 20:50:28,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:50:28" (3/3) ... [2018-10-23 20:50:28,391 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label05_true-unreach-call.c [2018-10-23 20:50:28,402 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 20:50:28,412 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 20:50:28,430 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 20:50:28,476 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 20:50:28,477 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 20:50:28,477 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 20:50:28,478 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 20:50:28,478 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 20:50:28,478 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 20:50:28,478 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 20:50:28,478 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 20:50:28,478 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 20:50:28,515 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states. [2018-10-23 20:50:28,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-23 20:50:28,525 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:50:28,527 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] [2018-10-23 20:50:28,529 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:50:28,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:50:28,535 INFO L82 PathProgramCache]: Analyzing trace with hash 861450858, now seen corresponding path program 1 times [2018-10-23 20:50:28,537 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:50:28,538 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:50:28,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:50:28,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:50:28,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:50:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:50:28,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:50:28,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:50:28,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:50:28,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:50:28,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:50:28,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:50:28,986 INFO L87 Difference]: Start difference. First operand 758 states. Second operand 4 states. [2018-10-23 20:50:39,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:50:39,139 INFO L93 Difference]: Finished difference Result 2918 states and 5666 transitions. [2018-10-23 20:50:39,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:50:39,142 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2018-10-23 20:50:39,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:50:39,182 INFO L225 Difference]: With dead ends: 2918 [2018-10-23 20:50:39,182 INFO L226 Difference]: Without dead ends: 2153 [2018-10-23 20:50:39,190 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:50:39,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2018-10-23 20:50:39,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 1446. [2018-10-23 20:50:39,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1446 states. [2018-10-23 20:50:39,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 2350 transitions. [2018-10-23 20:50:39,318 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 2350 transitions. Word has length 39 [2018-10-23 20:50:39,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:50:39,319 INFO L481 AbstractCegarLoop]: Abstraction has 1446 states and 2350 transitions. [2018-10-23 20:50:39,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:50:39,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 2350 transitions. [2018-10-23 20:50:39,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-23 20:50:39,323 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:50:39,324 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:50:39,324 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:50:39,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:50:39,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1479797159, now seen corresponding path program 1 times [2018-10-23 20:50:39,325 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:50:39,325 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:50:39,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:50:39,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:50:39,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:50:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:50:39,547 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:50:39,548 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:50:39,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:50:39,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:50:39,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:50:39,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:50:39,554 INFO L87 Difference]: Start difference. First operand 1446 states and 2350 transitions. Second operand 4 states. [2018-10-23 20:50:47,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:50:47,967 INFO L93 Difference]: Finished difference Result 4272 states and 6985 transitions. [2018-10-23 20:50:47,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 20:50:47,968 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2018-10-23 20:50:47,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:50:47,984 INFO L225 Difference]: With dead ends: 4272 [2018-10-23 20:50:47,985 INFO L226 Difference]: Without dead ends: 2828 [2018-10-23 20:50:47,993 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:50:47,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2018-10-23 20:50:48,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2828. [2018-10-23 20:50:48,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2828 states. [2018-10-23 20:50:48,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2828 states to 2828 states and 3947 transitions. [2018-10-23 20:50:48,070 INFO L78 Accepts]: Start accepts. Automaton has 2828 states and 3947 transitions. Word has length 105 [2018-10-23 20:50:48,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:50:48,070 INFO L481 AbstractCegarLoop]: Abstraction has 2828 states and 3947 transitions. [2018-10-23 20:50:48,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:50:48,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2828 states and 3947 transitions. [2018-10-23 20:50:48,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-10-23 20:50:48,088 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:50:48,089 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, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:50:48,089 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:50:48,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:50:48,089 INFO L82 PathProgramCache]: Analyzing trace with hash 186676882, now seen corresponding path program 1 times [2018-10-23 20:50:48,090 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:50:48,090 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:50:48,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:50:48,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:50:48,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:50:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:50:48,893 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-10-23 20:50:48,893 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:50:48,893 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:50:48,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 20:50:48,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 20:50:48,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:50:48,895 INFO L87 Difference]: Start difference. First operand 2828 states and 3947 transitions. Second operand 5 states. [2018-10-23 20:50:56,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:50:56,389 INFO L93 Difference]: Finished difference Result 9800 states and 13250 transitions. [2018-10-23 20:50:56,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 20:50:56,391 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 224 [2018-10-23 20:50:56,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:50:56,425 INFO L225 Difference]: With dead ends: 9800 [2018-10-23 20:50:56,426 INFO L226 Difference]: Without dead ends: 6974 [2018-10-23 20:50:56,432 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-23 20:50:56,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6974 states. [2018-10-23 20:50:56,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6974 to 6283. [2018-10-23 20:50:56,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6283 states. [2018-10-23 20:50:56,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6283 states to 6283 states and 7637 transitions. [2018-10-23 20:50:56,547 INFO L78 Accepts]: Start accepts. Automaton has 6283 states and 7637 transitions. Word has length 224 [2018-10-23 20:50:56,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:50:56,548 INFO L481 AbstractCegarLoop]: Abstraction has 6283 states and 7637 transitions. [2018-10-23 20:50:56,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 20:50:56,548 INFO L276 IsEmpty]: Start isEmpty. Operand 6283 states and 7637 transitions. [2018-10-23 20:50:56,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2018-10-23 20:50:56,557 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:50:56,558 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:50:56,558 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:50:56,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:50:56,559 INFO L82 PathProgramCache]: Analyzing trace with hash -887813735, now seen corresponding path program 1 times [2018-10-23 20:50:56,559 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:50:56,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:50:56,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:50:56,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:50:56,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:50:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:50:57,207 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-23 20:50:57,378 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2018-10-23 20:50:57,585 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 304 proven. 4 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-10-23 20:50:57,586 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:50:57,586 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 20:50:57,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:50:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:50:57,716 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:50:57,925 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-10-23 20:50:57,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:50:57,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-23 20:50:57,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 20:50:57,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 20:50:57,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-23 20:50:57,950 INFO L87 Difference]: Start difference. First operand 6283 states and 7637 transitions. Second operand 6 states. [2018-10-23 20:51:09,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:51:09,647 INFO L93 Difference]: Finished difference Result 19490 states and 23480 transitions. [2018-10-23 20:51:09,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 20:51:09,648 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 407 [2018-10-23 20:51:09,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:51:09,702 INFO L225 Difference]: With dead ends: 19490 [2018-10-23 20:51:09,702 INFO L226 Difference]: Without dead ends: 11825 [2018-10-23 20:51:09,713 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 407 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-23 20:51:09,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11825 states. [2018-10-23 20:51:09,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11825 to 9737. [2018-10-23 20:51:09,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9737 states. [2018-10-23 20:51:09,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9737 states to 9737 states and 10931 transitions. [2018-10-23 20:51:09,913 INFO L78 Accepts]: Start accepts. Automaton has 9737 states and 10931 transitions. Word has length 407 [2018-10-23 20:51:09,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:51:09,914 INFO L481 AbstractCegarLoop]: Abstraction has 9737 states and 10931 transitions. [2018-10-23 20:51:09,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 20:51:09,914 INFO L276 IsEmpty]: Start isEmpty. Operand 9737 states and 10931 transitions. [2018-10-23 20:51:09,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2018-10-23 20:51:09,922 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:51:09,923 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2018-10-23 20:51:09,923 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:51:09,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:51:09,924 INFO L82 PathProgramCache]: Analyzing trace with hash 475440215, now seen corresponding path program 1 times [2018-10-23 20:51:09,924 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:51:09,924 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:51:09,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:51:09,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:51:09,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:51:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:51:10,319 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-23 20:51:10,376 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-23 20:51:10,376 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:51:10,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:51:10,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:51:10,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:51:10,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:51:10,378 INFO L87 Difference]: Start difference. First operand 9737 states and 10931 transitions. Second operand 4 states. [2018-10-23 20:51:16,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:51:16,144 INFO L93 Difference]: Finished difference Result 25706 states and 29842 transitions. [2018-10-23 20:51:16,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:51:16,144 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 412 [2018-10-23 20:51:16,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:51:16,196 INFO L225 Difference]: With dead ends: 25706 [2018-10-23 20:51:16,196 INFO L226 Difference]: Without dead ends: 15971 [2018-10-23 20:51:16,212 INFO L605 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 [2018-10-23 20:51:16,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15971 states. [2018-10-23 20:51:16,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15971 to 15971. [2018-10-23 20:51:16,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15971 states. [2018-10-23 20:51:16,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15971 states to 15971 states and 18014 transitions. [2018-10-23 20:51:16,477 INFO L78 Accepts]: Start accepts. Automaton has 15971 states and 18014 transitions. Word has length 412 [2018-10-23 20:51:16,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:51:16,479 INFO L481 AbstractCegarLoop]: Abstraction has 15971 states and 18014 transitions. [2018-10-23 20:51:16,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:51:16,479 INFO L276 IsEmpty]: Start isEmpty. Operand 15971 states and 18014 transitions. [2018-10-23 20:51:16,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2018-10-23 20:51:16,487 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:51:16,487 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:51:16,487 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:51:16,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:51:16,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1353199782, now seen corresponding path program 1 times [2018-10-23 20:51:16,488 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:51:16,488 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:51:16,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:51:16,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:51:16,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:51:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:51:17,048 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-10-23 20:51:17,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:51:17,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:51:17,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:51:17,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:51:17,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:51:17,050 INFO L87 Difference]: Start difference. First operand 15971 states and 18014 transitions. Second operand 4 states. [2018-10-23 20:51:25,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:51:25,045 INFO L93 Difference]: Finished difference Result 54743 states and 62662 transitions. [2018-10-23 20:51:25,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:51:25,046 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 426 [2018-10-23 20:51:25,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:51:25,125 INFO L225 Difference]: With dead ends: 54743 [2018-10-23 20:51:25,126 INFO L226 Difference]: Without dead ends: 38774 [2018-10-23 20:51:25,153 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:51:25,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38774 states. [2018-10-23 20:51:25,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38774 to 38083. [2018-10-23 20:51:25,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38083 states. [2018-10-23 20:51:25,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38083 states to 38083 states and 42636 transitions. [2018-10-23 20:51:25,677 INFO L78 Accepts]: Start accepts. Automaton has 38083 states and 42636 transitions. Word has length 426 [2018-10-23 20:51:25,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:51:25,678 INFO L481 AbstractCegarLoop]: Abstraction has 38083 states and 42636 transitions. [2018-10-23 20:51:25,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:51:25,680 INFO L276 IsEmpty]: Start isEmpty. Operand 38083 states and 42636 transitions. [2018-10-23 20:51:25,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2018-10-23 20:51:25,709 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:51:25,710 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:51:25,710 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:51:25,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:51:25,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1933825861, now seen corresponding path program 1 times [2018-10-23 20:51:25,711 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:51:25,711 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:51:25,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:51:25,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:51:25,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:51:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:51:26,399 WARN L179 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-10-23 20:51:26,685 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 466 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-10-23 20:51:26,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:51:26,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:51:26,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:51:26,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:51:26,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:51:26,687 INFO L87 Difference]: Start difference. First operand 38083 states and 42636 transitions. Second operand 4 states. [2018-10-23 20:51:33,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:51:33,422 INFO L93 Difference]: Finished difference Result 95512 states and 108082 transitions. [2018-10-23 20:51:33,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:51:33,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 661 [2018-10-23 20:51:33,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:51:33,517 INFO L225 Difference]: With dead ends: 95512 [2018-10-23 20:51:33,517 INFO L226 Difference]: Without dead ends: 58122 [2018-10-23 20:51:33,564 INFO L605 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 [2018-10-23 20:51:33,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58122 states. [2018-10-23 20:51:34,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58122 to 56740. [2018-10-23 20:51:34,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56740 states. [2018-10-23 20:51:34,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56740 states to 56740 states and 62809 transitions. [2018-10-23 20:51:34,211 INFO L78 Accepts]: Start accepts. Automaton has 56740 states and 62809 transitions. Word has length 661 [2018-10-23 20:51:34,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:51:34,212 INFO L481 AbstractCegarLoop]: Abstraction has 56740 states and 62809 transitions. [2018-10-23 20:51:34,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:51:34,212 INFO L276 IsEmpty]: Start isEmpty. Operand 56740 states and 62809 transitions. [2018-10-23 20:51:34,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2018-10-23 20:51:34,255 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:51:34,255 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:51:34,256 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:51:34,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:51:34,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1970641219, now seen corresponding path program 1 times [2018-10-23 20:51:34,256 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:51:34,256 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:51:34,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:51:34,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:51:34,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:51:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:51:34,951 WARN L179 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2018-10-23 20:51:35,622 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 536 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-10-23 20:51:35,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:51:35,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:51:35,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:51:35,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:51:35,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:51:35,624 INFO L87 Difference]: Start difference. First operand 56740 states and 62809 transitions. Second operand 4 states. [2018-10-23 20:51:40,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:51:40,759 INFO L93 Difference]: Finished difference Result 113478 states and 125615 transitions. [2018-10-23 20:51:40,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:51:40,760 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 703 [2018-10-23 20:51:40,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:51:40,833 INFO L225 Difference]: With dead ends: 113478 [2018-10-23 20:51:40,833 INFO L226 Difference]: Without dead ends: 57431 [2018-10-23 20:51:40,875 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:51:40,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57431 states. [2018-10-23 20:51:41,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57431 to 56740. [2018-10-23 20:51:41,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56740 states. [2018-10-23 20:51:41,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56740 states to 56740 states and 62073 transitions. [2018-10-23 20:51:41,417 INFO L78 Accepts]: Start accepts. Automaton has 56740 states and 62073 transitions. Word has length 703 [2018-10-23 20:51:41,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:51:41,417 INFO L481 AbstractCegarLoop]: Abstraction has 56740 states and 62073 transitions. [2018-10-23 20:51:41,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:51:41,417 INFO L276 IsEmpty]: Start isEmpty. Operand 56740 states and 62073 transitions. [2018-10-23 20:51:41,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1265 [2018-10-23 20:51:41,455 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:51:41,456 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-10-23 20:51:41,456 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:51:41,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:51:41,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1766176289, now seen corresponding path program 1 times [2018-10-23 20:51:41,457 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:51:41,457 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:51:41,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:51:41,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:51:41,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:51:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:51:43,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1531 backedges. 1022 proven. 0 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2018-10-23 20:51:43,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:51:43,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:51:43,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:51:43,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:51:43,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:51:43,018 INFO L87 Difference]: Start difference. First operand 56740 states and 62073 transitions. Second operand 4 states. [2018-10-23 20:51:48,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:51:48,933 INFO L93 Difference]: Finished difference Result 140427 states and 154517 transitions. [2018-10-23 20:51:48,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:51:48,934 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1264 [2018-10-23 20:51:48,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:51:49,037 INFO L225 Difference]: With dead ends: 140427 [2018-10-23 20:51:49,038 INFO L226 Difference]: Without dead ends: 84380 [2018-10-23 20:51:49,074 INFO L605 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 [2018-10-23 20:51:49,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84380 states. [2018-10-23 20:51:49,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84380 to 84380. [2018-10-23 20:51:49,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84380 states. [2018-10-23 20:51:49,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84380 states to 84380 states and 91299 transitions. [2018-10-23 20:51:49,870 INFO L78 Accepts]: Start accepts. Automaton has 84380 states and 91299 transitions. Word has length 1264 [2018-10-23 20:51:49,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:51:49,871 INFO L481 AbstractCegarLoop]: Abstraction has 84380 states and 91299 transitions. [2018-10-23 20:51:49,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:51:49,871 INFO L276 IsEmpty]: Start isEmpty. Operand 84380 states and 91299 transitions. [2018-10-23 20:51:49,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1274 [2018-10-23 20:51:49,895 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:51:49,896 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:51:49,896 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:51:49,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:51:49,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1444721328, now seen corresponding path program 1 times [2018-10-23 20:51:49,897 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:51:49,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:51:49,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:51:49,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:51:49,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:51:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:51:51,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1859 backedges. 725 proven. 37 refuted. 0 times theorem prover too weak. 1097 trivial. 0 not checked. [2018-10-23 20:51:51,373 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:51:51,373 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 20:51:51,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:51:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:51:51,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:51:52,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1859 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 1638 trivial. 0 not checked. [2018-10-23 20:51:52,767 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:51:52,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-23 20:51:52,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 20:51:52,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 20:51:52,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:51:52,769 INFO L87 Difference]: Start difference. First operand 84380 states and 91299 transitions. Second operand 5 states. [2018-10-23 20:52:02,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:52:02,646 INFO L93 Difference]: Finished difference Result 196393 states and 213189 transitions. [2018-10-23 20:52:02,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 20:52:02,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1273 [2018-10-23 20:52:02,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:52:02,796 INFO L225 Difference]: With dead ends: 196393 [2018-10-23 20:52:02,796 INFO L226 Difference]: Without dead ends: 112706 [2018-10-23 20:52:02,861 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1280 GetRequests, 1275 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 20:52:02,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112706 states. [2018-10-23 20:52:04,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112706 to 110633. [2018-10-23 20:52:04,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110633 states. [2018-10-23 20:52:04,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110633 states to 110633 states and 114460 transitions. [2018-10-23 20:52:04,227 INFO L78 Accepts]: Start accepts. Automaton has 110633 states and 114460 transitions. Word has length 1273 [2018-10-23 20:52:04,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:52:04,228 INFO L481 AbstractCegarLoop]: Abstraction has 110633 states and 114460 transitions. [2018-10-23 20:52:04,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 20:52:04,229 INFO L276 IsEmpty]: Start isEmpty. Operand 110633 states and 114460 transitions. [2018-10-23 20:52:04,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1691 [2018-10-23 20:52:04,305 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:52:04,307 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:52:04,307 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:52:04,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:52:04,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1542632251, now seen corresponding path program 1 times [2018-10-23 20:52:04,308 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:52:04,308 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:52:04,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:52:04,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:52:04,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:52:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:52:05,450 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-23 20:52:05,757 WARN L179 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-10-23 20:52:06,030 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 18 [2018-10-23 20:52:09,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2425 backedges. 1579 proven. 585 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2018-10-23 20:52:09,831 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:52:09,831 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 20:52:09,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:52:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:52:10,214 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:52:12,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2425 backedges. 1713 proven. 0 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2018-10-23 20:52:12,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:52:12,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2018-10-23 20:52:12,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-23 20:52:12,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-23 20:52:12,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-10-23 20:52:12,309 INFO L87 Difference]: Start difference. First operand 110633 states and 114460 transitions. Second operand 10 states. [2018-10-23 20:52:35,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:52:35,668 INFO L93 Difference]: Finished difference Result 401012 states and 417080 transitions. [2018-10-23 20:52:35,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-23 20:52:35,668 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1690 [2018-10-23 20:52:35,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:52:35,942 INFO L225 Difference]: With dead ends: 401012 [2018-10-23 20:52:35,942 INFO L226 Difference]: Without dead ends: 241475 [2018-10-23 20:52:36,019 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1724 GetRequests, 1702 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2018-10-23 20:52:36,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241475 states. [2018-10-23 20:52:37,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241475 to 100214. [2018-10-23 20:52:37,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100214 states. [2018-10-23 20:52:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100214 states to 100214 states and 102223 transitions. [2018-10-23 20:52:37,401 INFO L78 Accepts]: Start accepts. Automaton has 100214 states and 102223 transitions. Word has length 1690 [2018-10-23 20:52:37,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:52:37,402 INFO L481 AbstractCegarLoop]: Abstraction has 100214 states and 102223 transitions. [2018-10-23 20:52:37,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-23 20:52:37,403 INFO L276 IsEmpty]: Start isEmpty. Operand 100214 states and 102223 transitions. [2018-10-23 20:52:37,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2029 [2018-10-23 20:52:37,476 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:52:37,477 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:52:37,477 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:52:37,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:52:37,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1883907896, now seen corresponding path program 1 times [2018-10-23 20:52:37,478 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:52:37,478 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:52:37,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:52:37,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:52:37,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:52:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:52:41,712 INFO L134 CoverageAnalysis]: Checked inductivity of 3580 backedges. 2797 proven. 70 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked. [2018-10-23 20:52:41,712 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:52:41,713 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 20:52:41,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:52:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:52:42,193 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:52:42,549 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 15 [2018-10-23 20:52:48,455 INFO L134 CoverageAnalysis]: Checked inductivity of 3580 backedges. 1703 proven. 0 refuted. 0 times theorem prover too weak. 1877 trivial. 0 not checked. [2018-10-23 20:52:48,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:52:48,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2018-10-23 20:52:48,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 20:52:48,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 20:52:48,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 20:52:48,479 INFO L87 Difference]: Start difference. First operand 100214 states and 102223 transitions. Second operand 6 states. [2018-10-23 20:54:08,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:54:08,864 INFO L93 Difference]: Finished difference Result 234979 states and 239802 transitions. [2018-10-23 20:54:08,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 20:54:08,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 2028 [2018-10-23 20:54:08,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:54:09,017 INFO L225 Difference]: With dead ends: 234979 [2018-10-23 20:54:09,018 INFO L226 Difference]: Without dead ends: 134767 [2018-10-23 20:54:09,083 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2034 GetRequests, 2028 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-23 20:54:09,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134767 states. [2018-10-23 20:54:10,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134767 to 125784. [2018-10-23 20:54:10,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125784 states. [2018-10-23 20:54:10,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125784 states to 125784 states and 127792 transitions. [2018-10-23 20:54:10,326 INFO L78 Accepts]: Start accepts. Automaton has 125784 states and 127792 transitions. Word has length 2028 [2018-10-23 20:54:10,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:54:10,327 INFO L481 AbstractCegarLoop]: Abstraction has 125784 states and 127792 transitions. [2018-10-23 20:54:10,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 20:54:10,327 INFO L276 IsEmpty]: Start isEmpty. Operand 125784 states and 127792 transitions. [2018-10-23 20:54:10,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2264 [2018-10-23 20:54:10,424 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:54:10,425 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:54:10,425 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:54:10,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:54:10,426 INFO L82 PathProgramCache]: Analyzing trace with hash -357289246, now seen corresponding path program 1 times [2018-10-23 20:54:10,426 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:54:10,426 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:54:10,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:54:10,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:54:10,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:54:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:54:11,834 WARN L179 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 Received shutdown request... [2018-10-23 20:54:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 5521 backedges. 3493 proven. 0 refuted. 0 times theorem prover too weak. 2028 trivial. 0 not checked. [2018-10-23 20:54:14,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:54:14,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:54:14,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:54:14,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:54:14,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:54:14,469 INFO L87 Difference]: Start difference. First operand 125784 states and 127792 transitions. Second operand 4 states. [2018-10-23 20:54:14,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-23 20:54:14,470 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 20:54:14,475 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 20:54:14,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:54:14 BoogieIcfgContainer [2018-10-23 20:54:14,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 20:54:14,477 INFO L168 Benchmark]: Toolchain (without parser) took 236123.78 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 1.4 GB in the end (delta: -11.1 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-23 20:54:14,478 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. [2018-10-23 20:54:14,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1765.81 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-23 20:54:14,479 INFO L168 Benchmark]: Boogie Procedure Inliner took 495.80 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 800.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -964.7 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-10-23 20:54:14,480 INFO L168 Benchmark]: Boogie Preprocessor took 214.70 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: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2018-10-23 20:54:14,481 INFO L168 Benchmark]: RCFGBuilder took 7548.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 535.8 MB). Peak memory consumption was 535.8 MB. Max. memory is 7.1 GB. [2018-10-23 20:54:14,482 INFO L168 Benchmark]: TraceAbstraction took 226092.59 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 1.4 GB in the end (delta: 242.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-23 20:54:14,487 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 1765.81 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 495.80 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 800.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -964.7 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 214.70 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: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7548.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 535.8 MB). Peak memory consumption was 535.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226092.59 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 1.4 GB in the end (delta: 242.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 123]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 123). Cancelled while BasicCegarLoop was constructing difference of abstraction (125784states) and FLOYD_HOARE automaton (currently 2 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 758 locations, 1 error locations. TIMEOUT Result, 226.0s OverallTime, 13 OverallIterations, 11 TraceHistogramMax, 184.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5997 SDtfs, 32566 SDslu, 1590 SDs, 0 SdLazy, 68540 SolverSat, 13396 SolverUnsat, 26 SolverUnknown, 0 SolverNotchecked, 159.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5491 GetRequests, 5427 SyntacticMatches, 8 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125784occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 7.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 158567 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 18.9s InterpolantComputationTime, 16893 NumberOfCodeBlocks, 16893 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 16876 ConstructedInterpolants, 583 QuantifiedInterpolants, 59376756 SizeOfPredicates, 2 NumberOfNonLiveVariables, 6187 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 24356/25052 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown