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/Problem12_label01_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 16:09:32,342 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 16:09:32,344 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 16:09:32,362 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 16:09:32,363 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 16:09:32,364 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 16:09:32,365 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 16:09:32,367 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 16:09:32,369 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 16:09:32,370 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 16:09:32,371 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 16:09:32,371 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 16:09:32,372 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 16:09:32,373 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 16:09:32,374 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 16:09:32,375 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 16:09:32,376 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 16:09:32,378 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 16:09:32,380 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 16:09:32,381 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 16:09:32,383 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 16:09:32,384 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 16:09:32,386 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 16:09:32,387 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 16:09:32,387 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 16:09:32,388 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 16:09:32,389 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 16:09:32,390 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 16:09:32,391 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 16:09:32,392 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 16:09:32,392 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 16:09:32,393 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 16:09:32,393 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 16:09:32,393 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 16:09:32,394 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 16:09:32,395 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 16:09:32,395 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 16:09:32,422 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 16:09:32,422 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 16:09:32,423 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 16:09:32,423 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 16:09:32,425 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 16:09:32,425 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 16:09:32,425 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 16:09:32,426 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 16:09:32,426 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 16:09:32,426 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 16:09:32,426 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 16:09:32,426 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 16:09:32,426 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 16:09:32,428 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 16:09:32,428 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 16:09:32,428 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 16:09:32,428 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 16:09:32,428 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 16:09:32,429 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 16:09:32,429 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:09:32,429 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 16:09:32,429 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 16:09:32,429 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 16:09:32,430 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 16:09:32,431 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 16:09:32,431 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 16:09:32,431 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 16:09:32,432 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 16:09:32,486 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 16:09:32,504 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 16:09:32,510 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 16:09:32,511 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 16:09:32,512 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 16:09:32,513 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label01_true-unreach-call.c [2018-10-24 16:09:32,590 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1abce2717/78347c7a01644c588aee531c0a3419ec/FLAG77057f9b7 [2018-10-24 16:09:33,412 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 16:09:33,413 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label01_true-unreach-call.c [2018-10-24 16:09:33,449 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1abce2717/78347c7a01644c588aee531c0a3419ec/FLAG77057f9b7 [2018-10-24 16:09:33,465 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1abce2717/78347c7a01644c588aee531c0a3419ec [2018-10-24 16:09:33,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 16:09:33,479 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 16:09:33,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 16:09:33,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 16:09:33,485 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 16:09:33,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:09:33" (1/1) ... [2018-10-24 16:09:33,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc12248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:33, skipping insertion in model container [2018-10-24 16:09:33,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:09:33" (1/1) ... [2018-10-24 16:09:33,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 16:09:33,642 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 16:09:34,840 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:09:34,845 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 16:09:35,455 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:09:35,493 INFO L193 MainTranslator]: Completed translation [2018-10-24 16:09:35,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:35 WrapperNode [2018-10-24 16:09:35,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 16:09:35,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 16:09:35,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 16:09:35,495 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 16:09:35,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:35" (1/1) ... [2018-10-24 16:09:35,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:35" (1/1) ... [2018-10-24 16:09:36,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 16:09:36,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 16:09:36,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 16:09:36,229 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 16:09:36,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:35" (1/1) ... [2018-10-24 16:09:36,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:35" (1/1) ... [2018-10-24 16:09:36,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:35" (1/1) ... [2018-10-24 16:09:36,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:35" (1/1) ... [2018-10-24 16:09:36,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:35" (1/1) ... [2018-10-24 16:09:36,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:35" (1/1) ... [2018-10-24 16:09:36,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:35" (1/1) ... [2018-10-24 16:09:36,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 16:09:36,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 16:09:36,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 16:09:36,663 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 16:09:36,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:09:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 16:09:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 16:09:36,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 16:09:45,457 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 16:09:45,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:09:45 BoogieIcfgContainer [2018-10-24 16:09:45,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 16:09:45,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 16:09:45,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 16:09:45,464 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 16:09:45,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:09:33" (1/3) ... [2018-10-24 16:09:45,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4c0fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:09:45, skipping insertion in model container [2018-10-24 16:09:45,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:09:35" (2/3) ... [2018-10-24 16:09:45,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4c0fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:09:45, skipping insertion in model container [2018-10-24 16:09:45,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:09:45" (3/3) ... [2018-10-24 16:09:45,471 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label01_true-unreach-call.c [2018-10-24 16:09:45,488 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 16:09:45,498 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 16:09:45,514 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 16:09:45,565 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 16:09:45,566 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 16:09:45,566 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 16:09:45,566 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 16:09:45,566 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 16:09:45,566 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 16:09:45,567 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 16:09:45,567 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 16:09:45,567 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 16:09:45,609 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-10-24 16:09:45,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-24 16:09:45,628 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:09:45,629 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:09:45,632 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:09:45,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:09:45,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1660793902, now seen corresponding path program 1 times [2018-10-24 16:09:45,641 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:09:45,642 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:09:45,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:09:45,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:09:45,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:09:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:09:46,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:09:46,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:09:46,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:09:46,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:09:46,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:09:46,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:09:46,123 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-10-24 16:10:00,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:10:00,318 INFO L93 Difference]: Finished difference Result 3146 states and 6134 transitions. [2018-10-24 16:10:00,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:10:00,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2018-10-24 16:10:00,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:10:00,366 INFO L225 Difference]: With dead ends: 3146 [2018-10-24 16:10:00,367 INFO L226 Difference]: Without dead ends: 2320 [2018-10-24 16:10:00,376 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:10:00,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2018-10-24 16:10:00,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2320. [2018-10-24 16:10:00,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2018-10-24 16:10:00,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3858 transitions. [2018-10-24 16:10:00,539 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3858 transitions. Word has length 48 [2018-10-24 16:10:00,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:10:00,540 INFO L481 AbstractCegarLoop]: Abstraction has 2320 states and 3858 transitions. [2018-10-24 16:10:00,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:10:00,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3858 transitions. [2018-10-24 16:10:00,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-10-24 16:10:00,549 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:10:00,550 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:10:00,550 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:10:00,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:10:00,551 INFO L82 PathProgramCache]: Analyzing trace with hash 156164161, now seen corresponding path program 1 times [2018-10-24 16:10:00,552 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:10:00,552 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:10:00,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:10:00,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:10:00,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:10:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:10:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:10:00,851 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:10:00,851 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:10:00,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:10:00,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:10:00,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:10:00,854 INFO L87 Difference]: Start difference. First operand 2320 states and 3858 transitions. Second operand 4 states. [2018-10-24 16:10:17,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:10:17,511 INFO L93 Difference]: Finished difference Result 9150 states and 15304 transitions. [2018-10-24 16:10:17,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:10:17,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2018-10-24 16:10:17,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:10:17,549 INFO L225 Difference]: With dead ends: 9150 [2018-10-24 16:10:17,549 INFO L226 Difference]: Without dead ends: 6832 [2018-10-24 16:10:17,554 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:10:17,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2018-10-24 16:10:17,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6832. [2018-10-24 16:10:17,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6832 states. [2018-10-24 16:10:17,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 10776 transitions. [2018-10-24 16:10:17,683 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 10776 transitions. Word has length 120 [2018-10-24 16:10:17,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:10:17,684 INFO L481 AbstractCegarLoop]: Abstraction has 6832 states and 10776 transitions. [2018-10-24 16:10:17,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:10:17,684 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 10776 transitions. [2018-10-24 16:10:17,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-24 16:10:17,689 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:10:17,689 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:10:17,689 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:10:17,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:10:17,690 INFO L82 PathProgramCache]: Analyzing trace with hash -806140398, now seen corresponding path program 1 times [2018-10-24 16:10:17,690 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:10:17,690 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:10:17,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:10:17,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:10:17,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:10:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:10:17,994 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 16:10:18,266 WARN L179 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 16 [2018-10-24 16:10:18,506 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:10:18,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:10:18,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 16:10:18,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 16:10:18,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 16:10:18,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:10:18,508 INFO L87 Difference]: Start difference. First operand 6832 states and 10776 transitions. Second operand 6 states. [2018-10-24 16:10:36,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:10:36,465 INFO L93 Difference]: Finished difference Result 16670 states and 25698 transitions. [2018-10-24 16:10:36,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:10:36,466 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-10-24 16:10:36,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:10:36,514 INFO L225 Difference]: With dead ends: 16670 [2018-10-24 16:10:36,514 INFO L226 Difference]: Without dead ends: 9840 [2018-10-24 16:10:36,525 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:10:36,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9840 states. [2018-10-24 16:10:36,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9840 to 9840. [2018-10-24 16:10:36,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9840 states. [2018-10-24 16:10:36,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9840 states to 9840 states and 14314 transitions. [2018-10-24 16:10:36,723 INFO L78 Accepts]: Start accepts. Automaton has 9840 states and 14314 transitions. Word has length 126 [2018-10-24 16:10:36,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:10:36,724 INFO L481 AbstractCegarLoop]: Abstraction has 9840 states and 14314 transitions. [2018-10-24 16:10:36,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 16:10:36,724 INFO L276 IsEmpty]: Start isEmpty. Operand 9840 states and 14314 transitions. [2018-10-24 16:10:36,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-10-24 16:10:36,728 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:10:36,728 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:10:36,728 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:10:36,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:10:36,729 INFO L82 PathProgramCache]: Analyzing trace with hash 617018433, now seen corresponding path program 1 times [2018-10-24 16:10:36,729 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:10:36,729 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:10:36,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:10:36,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:10:36,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:10:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:10:37,242 WARN L179 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 9 [2018-10-24 16:10:37,380 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 146 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-10-24 16:10:37,381 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:10:37,381 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:10:37,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:10:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:10:37,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:10:37,542 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:10:37,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:10:37,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-10-24 16:10:37,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 16:10:37,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 16:10:37,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:10:37,569 INFO L87 Difference]: Start difference. First operand 9840 states and 14314 transitions. Second operand 7 states. [2018-10-24 16:11:02,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:11:02,326 INFO L93 Difference]: Finished difference Result 49788 states and 73805 transitions. [2018-10-24 16:11:02,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 16:11:02,327 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2018-10-24 16:11:02,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:11:02,421 INFO L225 Difference]: With dead ends: 49788 [2018-10-24 16:11:02,421 INFO L226 Difference]: Without dead ends: 38443 [2018-10-24 16:11:02,442 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 199 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-10-24 16:11:02,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38443 states. [2018-10-24 16:11:02,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38443 to 23375. [2018-10-24 16:11:02,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23375 states. [2018-10-24 16:11:03,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23375 states to 23375 states and 28888 transitions. [2018-10-24 16:11:03,002 INFO L78 Accepts]: Start accepts. Automaton has 23375 states and 28888 transitions. Word has length 198 [2018-10-24 16:11:03,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:11:03,002 INFO L481 AbstractCegarLoop]: Abstraction has 23375 states and 28888 transitions. [2018-10-24 16:11:03,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 16:11:03,002 INFO L276 IsEmpty]: Start isEmpty. Operand 23375 states and 28888 transitions. [2018-10-24 16:11:03,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2018-10-24 16:11:03,021 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:11:03,022 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2018-10-24 16:11:03,022 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:11:03,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:11:03,022 INFO L82 PathProgramCache]: Analyzing trace with hash -738194658, now seen corresponding path program 1 times [2018-10-24 16:11:03,023 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:11:03,023 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:11:03,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:03,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:11:03,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:11:03,753 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 509 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2018-10-24 16:11:03,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:11:03,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:11:03,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:11:03,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:11:03,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:11:03,755 INFO L87 Difference]: Start difference. First operand 23375 states and 28888 transitions. Second operand 3 states. [2018-10-24 16:11:07,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:11:07,997 INFO L93 Difference]: Finished difference Result 52764 states and 65832 transitions. [2018-10-24 16:11:07,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:11:07,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 432 [2018-10-24 16:11:07,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:11:08,051 INFO L225 Difference]: With dead ends: 52764 [2018-10-24 16:11:08,052 INFO L226 Difference]: Without dead ends: 30143 [2018-10-24 16:11:08,077 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:11:08,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30143 states. [2018-10-24 16:11:08,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30143 to 29391. [2018-10-24 16:11:08,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29391 states. [2018-10-24 16:11:08,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29391 states to 29391 states and 35499 transitions. [2018-10-24 16:11:08,471 INFO L78 Accepts]: Start accepts. Automaton has 29391 states and 35499 transitions. Word has length 432 [2018-10-24 16:11:08,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:11:08,472 INFO L481 AbstractCegarLoop]: Abstraction has 29391 states and 35499 transitions. [2018-10-24 16:11:08,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:11:08,472 INFO L276 IsEmpty]: Start isEmpty. Operand 29391 states and 35499 transitions. [2018-10-24 16:11:08,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2018-10-24 16:11:08,487 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:11:08,488 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-24 16:11:08,488 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:11:08,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:11:08,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1038639364, now seen corresponding path program 1 times [2018-10-24 16:11:08,489 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:11:08,489 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:11:08,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:08,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:11:08,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:11:08,877 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-24 16:11:09,069 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 524 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-10-24 16:11:09,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:11:09,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:11:09,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:11:09,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:11:09,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:11:09,072 INFO L87 Difference]: Start difference. First operand 29391 states and 35499 transitions. Second operand 4 states. [2018-10-24 16:11:17,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:11:17,067 INFO L93 Difference]: Finished difference Result 100140 states and 120550 transitions. [2018-10-24 16:11:17,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:11:17,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 438 [2018-10-24 16:11:17,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:11:17,187 INFO L225 Difference]: With dead ends: 100140 [2018-10-24 16:11:17,187 INFO L226 Difference]: Without dead ends: 71503 [2018-10-24 16:11:17,226 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:11:17,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71503 states. [2018-10-24 16:11:17,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71503 to 70751. [2018-10-24 16:11:17,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70751 states. [2018-10-24 16:11:18,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70751 states to 70751 states and 80351 transitions. [2018-10-24 16:11:18,028 INFO L78 Accepts]: Start accepts. Automaton has 70751 states and 80351 transitions. Word has length 438 [2018-10-24 16:11:18,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:11:18,029 INFO L481 AbstractCegarLoop]: Abstraction has 70751 states and 80351 transitions. [2018-10-24 16:11:18,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:11:18,029 INFO L276 IsEmpty]: Start isEmpty. Operand 70751 states and 80351 transitions. [2018-10-24 16:11:18,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2018-10-24 16:11:18,054 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:11:18,054 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:11:18,055 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:11:18,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:11:18,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1743584792, now seen corresponding path program 1 times [2018-10-24 16:11:18,055 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:11:18,056 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:11:18,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:18,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:11:18,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:11:18,404 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2018-10-24 16:11:18,404 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:11:18,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:11:18,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:11:18,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:11:18,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:11:18,406 INFO L87 Difference]: Start difference. First operand 70751 states and 80351 transitions. Second operand 3 states. [2018-10-24 16:11:25,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:11:25,863 INFO L93 Difference]: Finished difference Result 141496 states and 160804 transitions. [2018-10-24 16:11:25,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:11:25,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 460 [2018-10-24 16:11:25,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:11:25,946 INFO L225 Difference]: With dead ends: 141496 [2018-10-24 16:11:25,947 INFO L226 Difference]: Without dead ends: 71499 [2018-10-24 16:11:25,978 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:11:26,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71499 states. [2018-10-24 16:11:26,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71499 to 69243. [2018-10-24 16:11:26,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69243 states. [2018-10-24 16:11:26,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69243 states to 69243 states and 76319 transitions. [2018-10-24 16:11:26,692 INFO L78 Accepts]: Start accepts. Automaton has 69243 states and 76319 transitions. Word has length 460 [2018-10-24 16:11:26,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:11:26,693 INFO L481 AbstractCegarLoop]: Abstraction has 69243 states and 76319 transitions. [2018-10-24 16:11:26,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:11:26,693 INFO L276 IsEmpty]: Start isEmpty. Operand 69243 states and 76319 transitions. [2018-10-24 16:11:26,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2018-10-24 16:11:26,749 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:11:26,749 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:11:26,749 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:11:26,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:11:26,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1557070065, now seen corresponding path program 1 times [2018-10-24 16:11:26,750 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:11:26,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:11:26,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:26,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:11:26,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:11:27,394 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2018-10-24 16:11:27,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:11:27,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:11:27,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:11:27,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:11:27,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:11:27,396 INFO L87 Difference]: Start difference. First operand 69243 states and 76319 transitions. Second operand 4 states. [2018-10-24 16:11:35,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:11:35,549 INFO L93 Difference]: Finished difference Result 146756 states and 162435 transitions. [2018-10-24 16:11:35,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:11:35,549 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 619 [2018-10-24 16:11:35,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:11:35,631 INFO L225 Difference]: With dead ends: 146756 [2018-10-24 16:11:35,631 INFO L226 Difference]: Without dead ends: 78267 [2018-10-24 16:11:35,663 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:11:35,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78267 states. [2018-10-24 16:11:36,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78267 to 75259. [2018-10-24 16:11:36,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75259 states. [2018-10-24 16:11:36,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75259 states to 75259 states and 81932 transitions. [2018-10-24 16:11:36,386 INFO L78 Accepts]: Start accepts. Automaton has 75259 states and 81932 transitions. Word has length 619 [2018-10-24 16:11:36,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:11:36,387 INFO L481 AbstractCegarLoop]: Abstraction has 75259 states and 81932 transitions. [2018-10-24 16:11:36,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:11:36,387 INFO L276 IsEmpty]: Start isEmpty. Operand 75259 states and 81932 transitions. [2018-10-24 16:11:36,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2018-10-24 16:11:36,414 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:11:36,415 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2018-10-24 16:11:36,415 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:11:36,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:11:36,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1469063627, now seen corresponding path program 1 times [2018-10-24 16:11:36,416 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:11:36,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:11:36,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:36,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:11:36,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:11:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 606 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2018-10-24 16:11:36,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:11:36,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:11:36,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:11:36,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:11:36,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:11:36,825 INFO L87 Difference]: Start difference. First operand 75259 states and 81932 transitions. Second operand 4 states. [2018-10-24 16:11:46,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:11:46,910 INFO L93 Difference]: Finished difference Result 155780 states and 169512 transitions. [2018-10-24 16:11:46,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:11:46,910 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 643 [2018-10-24 16:11:46,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:11:47,004 INFO L225 Difference]: With dead ends: 155780 [2018-10-24 16:11:47,004 INFO L226 Difference]: Without dead ends: 81275 [2018-10-24 16:11:47,038 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:11:47,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81275 states. [2018-10-24 16:11:47,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81275 to 79771. [2018-10-24 16:11:47,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79771 states. [2018-10-24 16:11:47,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79771 states to 79771 states and 86190 transitions. [2018-10-24 16:11:47,903 INFO L78 Accepts]: Start accepts. Automaton has 79771 states and 86190 transitions. Word has length 643 [2018-10-24 16:11:47,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:11:47,903 INFO L481 AbstractCegarLoop]: Abstraction has 79771 states and 86190 transitions. [2018-10-24 16:11:47,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:11:47,904 INFO L276 IsEmpty]: Start isEmpty. Operand 79771 states and 86190 transitions. [2018-10-24 16:11:47,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2018-10-24 16:11:47,933 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:11:47,934 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 2, 2, 2, 2, 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] [2018-10-24 16:11:47,935 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:11:47,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:11:47,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1351687765, now seen corresponding path program 1 times [2018-10-24 16:11:47,936 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:11:47,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:11:47,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:47,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:11:47,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:11:48,612 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 16:11:48,957 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 516 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-10-24 16:11:48,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:11:48,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:11:48,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:11:48,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:11:48,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:11:48,959 INFO L87 Difference]: Start difference. First operand 79771 states and 86190 transitions. Second operand 4 states. [2018-10-24 16:11:58,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:11:58,305 INFO L93 Difference]: Finished difference Result 160292 states and 173188 transitions. [2018-10-24 16:11:58,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:11:58,305 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 647 [2018-10-24 16:11:58,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:11:58,377 INFO L225 Difference]: With dead ends: 160292 [2018-10-24 16:11:58,377 INFO L226 Difference]: Without dead ends: 79767 [2018-10-24 16:11:58,405 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:11:58,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79767 states. [2018-10-24 16:11:58,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79767 to 79767. [2018-10-24 16:11:58,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79767 states. [2018-10-24 16:11:58,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79767 states to 79767 states and 85293 transitions. [2018-10-24 16:11:58,990 INFO L78 Accepts]: Start accepts. Automaton has 79767 states and 85293 transitions. Word has length 647 [2018-10-24 16:11:58,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:11:58,991 INFO L481 AbstractCegarLoop]: Abstraction has 79767 states and 85293 transitions. [2018-10-24 16:11:58,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:11:58,992 INFO L276 IsEmpty]: Start isEmpty. Operand 79767 states and 85293 transitions. [2018-10-24 16:11:59,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2018-10-24 16:11:59,012 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:11:59,012 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:11:59,013 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:11:59,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:11:59,013 INFO L82 PathProgramCache]: Analyzing trace with hash 508948473, now seen corresponding path program 1 times [2018-10-24 16:11:59,013 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:11:59,014 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:11:59,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:59,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:11:59,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:11:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:11:59,485 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 704 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2018-10-24 16:11:59,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:11:59,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:11:59,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:11:59,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:11:59,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:11:59,487 INFO L87 Difference]: Start difference. First operand 79767 states and 85293 transitions. Second operand 3 states. [2018-10-24 16:12:05,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:12:05,508 INFO L93 Difference]: Finished difference Result 200892 states and 215538 transitions. [2018-10-24 16:12:05,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:12:05,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 676 [2018-10-24 16:12:05,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:12:05,679 INFO L225 Difference]: With dead ends: 200892 [2018-10-24 16:12:05,679 INFO L226 Difference]: Without dead ends: 121879 [2018-10-24 16:12:05,714 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:12:05,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121879 states. [2018-10-24 16:12:06,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121879 to 118871. [2018-10-24 16:12:06,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118871 states. [2018-10-24 16:12:06,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118871 states to 118871 states and 125898 transitions. [2018-10-24 16:12:06,658 INFO L78 Accepts]: Start accepts. Automaton has 118871 states and 125898 transitions. Word has length 676 [2018-10-24 16:12:06,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:12:06,658 INFO L481 AbstractCegarLoop]: Abstraction has 118871 states and 125898 transitions. [2018-10-24 16:12:06,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:12:06,659 INFO L276 IsEmpty]: Start isEmpty. Operand 118871 states and 125898 transitions. [2018-10-24 16:12:06,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2018-10-24 16:12:06,681 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:12:06,681 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:12:06,682 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:12:06,682 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:12:06,682 INFO L82 PathProgramCache]: Analyzing trace with hash 61251109, now seen corresponding path program 1 times [2018-10-24 16:12:06,682 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:12:06,682 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:12:06,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:12:06,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:12:06,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:12:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:12:07,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1000 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2018-10-24 16:12:07,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:12:07,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:12:07,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:12:07,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:12:07,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:12:07,282 INFO L87 Difference]: Start difference. First operand 118871 states and 125898 transitions. Second operand 4 states. [2018-10-24 16:12:16,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:12:16,346 INFO L93 Difference]: Finished difference Result 238492 states and 252556 transitions. [2018-10-24 16:12:16,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:12:16,346 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 698 [2018-10-24 16:12:16,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:12:16,468 INFO L225 Difference]: With dead ends: 238492 [2018-10-24 16:12:16,468 INFO L226 Difference]: Without dead ends: 115855 [2018-10-24 16:12:16,517 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:12:16,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115855 states. [2018-10-24 16:12:17,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115855 to 113599. [2018-10-24 16:12:17,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113599 states. [2018-10-24 16:12:17,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113599 states to 113599 states and 118956 transitions. [2018-10-24 16:12:17,484 INFO L78 Accepts]: Start accepts. Automaton has 113599 states and 118956 transitions. Word has length 698 [2018-10-24 16:12:17,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:12:17,485 INFO L481 AbstractCegarLoop]: Abstraction has 113599 states and 118956 transitions. [2018-10-24 16:12:17,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:12:17,485 INFO L276 IsEmpty]: Start isEmpty. Operand 113599 states and 118956 transitions. [2018-10-24 16:12:17,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2018-10-24 16:12:17,501 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:12:17,502 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:12:17,502 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:12:17,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:12:17,503 INFO L82 PathProgramCache]: Analyzing trace with hash -341500258, now seen corresponding path program 1 times [2018-10-24 16:12:17,503 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:12:17,503 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:12:17,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:12:17,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:12:17,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:12:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:12:18,305 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 16:12:18,585 WARN L179 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 13 [2018-10-24 16:12:19,751 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 190 proven. 634 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-10-24 16:12:19,751 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:12:19,751 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:12:19,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:12:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:12:19,955 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:12:20,391 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 599 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2018-10-24 16:12:20,412 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:12:20,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2018-10-24 16:12:20,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 16:12:20,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 16:12:20,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-10-24 16:12:20,416 INFO L87 Difference]: Start difference. First operand 113599 states and 118956 transitions. Second operand 9 states. [2018-10-24 16:12:53,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:12:53,315 INFO L93 Difference]: Finished difference Result 245243 states and 256934 transitions. [2018-10-24 16:12:53,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-24 16:12:53,315 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 730 [2018-10-24 16:12:53,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:12:53,452 INFO L225 Difference]: With dead ends: 245243 [2018-10-24 16:12:53,452 INFO L226 Difference]: Without dead ends: 123361 [2018-10-24 16:12:53,501 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 757 GetRequests, 737 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2018-10-24 16:12:53,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123361 states. [2018-10-24 16:12:54,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123361 to 102304. [2018-10-24 16:12:54,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102304 states. [2018-10-24 16:12:54,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102304 states to 102304 states and 105834 transitions. [2018-10-24 16:12:54,405 INFO L78 Accepts]: Start accepts. Automaton has 102304 states and 105834 transitions. Word has length 730 [2018-10-24 16:12:54,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:12:54,405 INFO L481 AbstractCegarLoop]: Abstraction has 102304 states and 105834 transitions. [2018-10-24 16:12:54,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 16:12:54,405 INFO L276 IsEmpty]: Start isEmpty. Operand 102304 states and 105834 transitions. [2018-10-24 16:12:54,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2018-10-24 16:12:54,424 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:12:54,425 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:12:54,425 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:12:54,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:12:54,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1696256535, now seen corresponding path program 1 times [2018-10-24 16:12:54,426 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:12:54,426 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:12:54,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:12:54,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:12:54,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:12:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:12:55,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 649 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-10-24 16:12:55,800 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:12:55,800 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:12:55,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:12:55,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:12:55,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:12:55,802 INFO L87 Difference]: Start difference. First operand 102304 states and 105834 transitions. Second operand 4 states. [2018-10-24 16:13:04,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:13:04,055 INFO L93 Difference]: Finished difference Result 207614 states and 214716 transitions. [2018-10-24 16:13:04,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:13:04,056 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 780 [2018-10-24 16:13:04,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:13:04,159 INFO L225 Difference]: With dead ends: 207614 [2018-10-24 16:13:04,160 INFO L226 Difference]: Without dead ends: 106064 [2018-10-24 16:13:04,212 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 [2018-10-24 16:13:04,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106064 states. [2018-10-24 16:13:05,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106064 to 102304. [2018-10-24 16:13:05,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102304 states. [2018-10-24 16:13:05,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102304 states to 102304 states and 105700 transitions. [2018-10-24 16:13:05,509 INFO L78 Accepts]: Start accepts. Automaton has 102304 states and 105700 transitions. Word has length 780 [2018-10-24 16:13:05,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:13:05,510 INFO L481 AbstractCegarLoop]: Abstraction has 102304 states and 105700 transitions. [2018-10-24 16:13:05,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:13:05,510 INFO L276 IsEmpty]: Start isEmpty. Operand 102304 states and 105700 transitions. [2018-10-24 16:13:05,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2018-10-24 16:13:05,533 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:13:05,533 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:13:05,533 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:13:05,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:13:05,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1787581214, now seen corresponding path program 1 times [2018-10-24 16:13:05,534 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:13:05,534 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:13:05,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:13:05,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:13:05,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:13:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:13:08,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 312 proven. 869 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-10-24 16:13:08,221 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:13:08,221 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:13:08,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:13:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:13:08,429 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:13:09,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 723 proven. 0 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2018-10-24 16:13:09,498 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:13:09,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2018-10-24 16:13:09,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 16:13:09,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 16:13:09,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-10-24 16:13:09,502 INFO L87 Difference]: Start difference. First operand 102304 states and 105700 transitions. Second operand 12 states. Received shutdown request... [2018-10-24 16:13:26,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-24 16:13:26,996 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 16:13:27,003 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 16:13:27,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:13:27 BoogieIcfgContainer [2018-10-24 16:13:27,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 16:13:27,004 INFO L168 Benchmark]: Toolchain (without parser) took 233526.18 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -182.6 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 16:13:27,006 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. [2018-10-24 16:13:27,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2013.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-10-24 16:13:27,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 733.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -957.6 MB). Peak memory consumption was 69.0 MB. Max. memory is 7.1 GB. [2018-10-24 16:13:27,008 INFO L168 Benchmark]: Boogie Preprocessor took 433.45 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. [2018-10-24 16:13:27,009 INFO L168 Benchmark]: RCFGBuilder took 8796.35 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 304.6 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -300.4 MB). Peak memory consumption was 684.7 MB. Max. memory is 7.1 GB. [2018-10-24 16:13:27,010 INFO L168 Benchmark]: TraceAbstraction took 221543.42 ms. Allocated memory was 2.6 GB in the beginning and 3.8 GB in the end (delta: 1.2 GB). Free memory was 2.4 GB in the beginning and 1.6 GB in the end (delta: 836.1 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 16:13:27,015 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 2013.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 733.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -957.6 MB). Peak memory consumption was 69.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 433.45 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8796.35 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 304.6 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -300.4 MB). Peak memory consumption was 684.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221543.42 ms. Allocated memory was 2.6 GB in the beginning and 3.8 GB in the end (delta: 1.2 GB). Free memory was 2.4 GB in the beginning and 1.6 GB in the end (delta: 836.1 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 153]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 153). Cancelled while BasicCegarLoop was constructing difference of abstraction (102304states) and FLOYD_HOARE automaton (currently 17 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (34431 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 221.4s OverallTime, 15 OverallIterations, 6 TraceHistogramMax, 196.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10774 SDtfs, 33862 SDslu, 2033 SDs, 0 SdLazy, 109980 SolverSat, 13108 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 160.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1860 GetRequests, 1774 SyntacticMatches, 23 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118871occurred in iteration=11, 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: 9.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 53421 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 9159 NumberOfCodeBlocks, 9159 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 9141 ConstructedInterpolants, 0 QuantifiedInterpolants, 20515405 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2150 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 18 InterpolantComputations, 15 PerfectInterpolantSequences, 10471/11979 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown