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/Problem19_label44_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 17:09:05,545 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 17:09:05,548 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 17:09:05,567 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 17:09:05,567 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 17:09:05,568 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 17:09:05,570 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 17:09:05,572 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 17:09:05,574 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 17:09:05,575 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 17:09:05,576 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 17:09:05,576 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 17:09:05,577 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 17:09:05,578 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 17:09:05,579 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 17:09:05,580 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 17:09:05,581 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 17:09:05,583 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 17:09:05,585 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 17:09:05,586 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 17:09:05,588 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 17:09:05,589 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 17:09:05,591 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 17:09:05,592 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 17:09:05,592 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 17:09:05,593 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 17:09:05,594 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 17:09:05,595 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 17:09:05,595 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 17:09:05,597 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 17:09:05,597 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 17:09:05,597 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 17:09:05,600 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 17:09:05,629 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 17:09:05,630 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 17:09:05,630 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 17:09:05,631 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 17:09:05,632 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 17:09:05,632 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 17:09:05,633 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 17:09:05,633 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 17:09:05,633 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 17:09:05,633 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 17:09:05,633 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 17:09:05,633 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 17:09:05,635 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 17:09:05,635 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 17:09:05,635 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 17:09:05,635 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 17:09:05,635 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 17:09:05,636 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 17:09:05,636 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 17:09:05,636 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 17:09:05,636 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 17:09:05,637 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 17:09:05,637 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 17:09:05,637 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 17:09:05,637 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 17:09:05,637 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 17:09:05,638 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 17:09:05,638 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 17:09:05,689 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 17:09:05,704 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 17:09:05,708 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 17:09:05,710 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 17:09:05,710 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 17:09:05,711 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label44_true-unreach-call.c [2018-10-24 17:09:05,767 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ce40d83a9/a2e71dd4a365453abd8f25b4627c4e94/FLAGe8f3bec1c [2018-10-24 17:09:06,638 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 17:09:06,639 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label44_true-unreach-call.c [2018-10-24 17:09:06,683 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ce40d83a9/a2e71dd4a365453abd8f25b4627c4e94/FLAGe8f3bec1c [2018-10-24 17:09:06,699 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ce40d83a9/a2e71dd4a365453abd8f25b4627c4e94 [2018-10-24 17:09:06,714 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 17:09:06,717 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 17:09:06,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 17:09:06,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 17:09:06,724 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 17:09:06,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:09:06" (1/1) ... [2018-10-24 17:09:06,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31151419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:06, skipping insertion in model container [2018-10-24 17:09:06,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:09:06" (1/1) ... [2018-10-24 17:09:06,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 17:09:07,006 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 17:09:08,981 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:09:08,986 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 17:09:10,189 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:09:10,250 INFO L193 MainTranslator]: Completed translation [2018-10-24 17:09:10,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:10 WrapperNode [2018-10-24 17:09:10,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 17:09:10,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 17:09:10,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 17:09:10,253 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 17:09:10,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:10" (1/1) ... [2018-10-24 17:09:10,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:10" (1/1) ... [2018-10-24 17:09:11,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 17:09:11,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 17:09:11,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 17:09:11,457 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 17:09:11,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:10" (1/1) ... [2018-10-24 17:09:11,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:10" (1/1) ... [2018-10-24 17:09:11,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:10" (1/1) ... [2018-10-24 17:09:11,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:10" (1/1) ... [2018-10-24 17:09:11,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:10" (1/1) ... [2018-10-24 17:09:11,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:10" (1/1) ... [2018-10-24 17:09:12,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:10" (1/1) ... [2018-10-24 17:09:12,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 17:09:12,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 17:09:12,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 17:09:12,277 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 17:09:12,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:10" (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 17:09:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 17:09:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 17:09:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 17:09:28,769 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 17:09:28,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:09:28 BoogieIcfgContainer [2018-10-24 17:09:28,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 17:09:28,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 17:09:28,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 17:09:28,779 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 17:09:28,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 05:09:06" (1/3) ... [2018-10-24 17:09:28,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2e86f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:09:28, skipping insertion in model container [2018-10-24 17:09:28,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:10" (2/3) ... [2018-10-24 17:09:28,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2e86f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:09:28, skipping insertion in model container [2018-10-24 17:09:28,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:09:28" (3/3) ... [2018-10-24 17:09:28,786 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label44_true-unreach-call.c [2018-10-24 17:09:28,795 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 17:09:28,806 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 17:09:28,823 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 17:09:28,871 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 17:09:28,872 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 17:09:28,872 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 17:09:28,872 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 17:09:28,872 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 17:09:28,872 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 17:09:28,872 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 17:09:28,873 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 17:09:28,873 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 17:09:28,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 17:09:28,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-24 17:09:28,928 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:09:28,929 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] [2018-10-24 17:09:28,932 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:09:28,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:09:28,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1433927590, now seen corresponding path program 1 times [2018-10-24 17:09:28,940 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:09:28,941 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:09:28,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:28,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:09:28,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:09:29,386 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 17:09:29,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:09:29,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:09:29,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:09:29,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:09:29,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:09:29,413 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 17:09:54,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:09:54,220 INFO L93 Difference]: Finished difference Result 6321 states and 12079 transitions. [2018-10-24 17:09:54,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:09:54,222 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2018-10-24 17:09:54,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:09:54,288 INFO L225 Difference]: With dead ends: 6321 [2018-10-24 17:09:54,289 INFO L226 Difference]: Without dead ends: 4565 [2018-10-24 17:09:54,299 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:09:54,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4565 states. [2018-10-24 17:09:54,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4565 to 4560. [2018-10-24 17:09:54,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4560 states. [2018-10-24 17:09:54,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4560 states to 4560 states and 7503 transitions. [2018-10-24 17:09:54,501 INFO L78 Accepts]: Start accepts. Automaton has 4560 states and 7503 transitions. Word has length 35 [2018-10-24 17:09:54,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:09:54,502 INFO L481 AbstractCegarLoop]: Abstraction has 4560 states and 7503 transitions. [2018-10-24 17:09:54,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:09:54,502 INFO L276 IsEmpty]: Start isEmpty. Operand 4560 states and 7503 transitions. [2018-10-24 17:09:54,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-24 17:09:54,508 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:09:54,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:09:54,510 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:09:54,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:09:54,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1426030111, now seen corresponding path program 1 times [2018-10-24 17:09:54,511 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:09:54,511 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:09:54,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:54,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:09:54,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:09:54,947 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:09:54,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:09:54,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:09:54,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:09:54,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:09:54,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:09:54,951 INFO L87 Difference]: Start difference. First operand 4560 states and 7503 transitions. Second operand 4 states. [2018-10-24 17:10:25,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:10:25,027 INFO L93 Difference]: Finished difference Result 17540 states and 29073 transitions. [2018-10-24 17:10:25,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:10:25,027 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2018-10-24 17:10:25,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:10:25,091 INFO L225 Difference]: With dead ends: 17540 [2018-10-24 17:10:25,091 INFO L226 Difference]: Without dead ends: 12982 [2018-10-24 17:10:25,100 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 17:10:25,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12982 states. [2018-10-24 17:10:25,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12982 to 8662. [2018-10-24 17:10:25,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8662 states. [2018-10-24 17:10:25,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8662 states to 8662 states and 13867 transitions. [2018-10-24 17:10:25,296 INFO L78 Accepts]: Start accepts. Automaton has 8662 states and 13867 transitions. Word has length 105 [2018-10-24 17:10:25,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:10:25,297 INFO L481 AbstractCegarLoop]: Abstraction has 8662 states and 13867 transitions. [2018-10-24 17:10:25,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:10:25,297 INFO L276 IsEmpty]: Start isEmpty. Operand 8662 states and 13867 transitions. [2018-10-24 17:10:25,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-10-24 17:10:25,305 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:10:25,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:10:25,305 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:10:25,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:10:25,308 INFO L82 PathProgramCache]: Analyzing trace with hash -422930194, now seen corresponding path program 1 times [2018-10-24 17:10:25,308 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:10:25,308 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:10:25,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:25,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:10:25,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:10:25,725 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:10:25,726 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:10:25,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:10:25,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:10:25,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:10:25,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:10:25,728 INFO L87 Difference]: Start difference. First operand 8662 states and 13867 transitions. Second operand 4 states. [2018-10-24 17:10:44,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:10:44,611 INFO L93 Difference]: Finished difference Result 33830 states and 54431 transitions. [2018-10-24 17:10:44,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:10:44,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2018-10-24 17:10:44,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:10:44,691 INFO L225 Difference]: With dead ends: 33830 [2018-10-24 17:10:44,691 INFO L226 Difference]: Without dead ends: 25170 [2018-10-24 17:10:44,702 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:10:44,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25170 states. [2018-10-24 17:10:44,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25170 to 16874. [2018-10-24 17:10:44,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16874 states. [2018-10-24 17:10:45,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16874 states to 16874 states and 23664 transitions. [2018-10-24 17:10:45,024 INFO L78 Accepts]: Start accepts. Automaton has 16874 states and 23664 transitions. Word has length 127 [2018-10-24 17:10:45,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:10:45,025 INFO L481 AbstractCegarLoop]: Abstraction has 16874 states and 23664 transitions. [2018-10-24 17:10:45,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:10:45,025 INFO L276 IsEmpty]: Start isEmpty. Operand 16874 states and 23664 transitions. [2018-10-24 17:10:45,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-24 17:10:45,028 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:10:45,028 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:10:45,028 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:10:45,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:10:45,029 INFO L82 PathProgramCache]: Analyzing trace with hash 186252804, now seen corresponding path program 1 times [2018-10-24 17:10:45,029 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:10:45,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:10:45,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:45,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:10:45,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:10:45,358 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:10:45,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:10:45,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:10:45,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:10:45,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:10:45,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:10:45,360 INFO L87 Difference]: Start difference. First operand 16874 states and 23664 transitions. Second operand 4 states. [2018-10-24 17:11:03,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:11:03,443 INFO L93 Difference]: Finished difference Result 65443 states and 92319 transitions. [2018-10-24 17:11:03,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:11:03,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2018-10-24 17:11:03,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:11:03,514 INFO L225 Difference]: With dead ends: 65443 [2018-10-24 17:11:03,514 INFO L226 Difference]: Without dead ends: 48571 [2018-10-24 17:11:03,536 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:11:03,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48571 states. [2018-10-24 17:11:04,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48571 to 48559. [2018-10-24 17:11:04,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48559 states. [2018-10-24 17:11:04,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48559 states to 48559 states and 60406 transitions. [2018-10-24 17:11:04,178 INFO L78 Accepts]: Start accepts. Automaton has 48559 states and 60406 transitions. Word has length 152 [2018-10-24 17:11:04,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:11:04,179 INFO L481 AbstractCegarLoop]: Abstraction has 48559 states and 60406 transitions. [2018-10-24 17:11:04,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:11:04,179 INFO L276 IsEmpty]: Start isEmpty. Operand 48559 states and 60406 transitions. [2018-10-24 17:11:04,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2018-10-24 17:11:04,200 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:11:04,200 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:11:04,201 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:11:04,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:11:04,201 INFO L82 PathProgramCache]: Analyzing trace with hash 736486478, now seen corresponding path program 1 times [2018-10-24 17:11:04,201 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:11:04,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:11:04,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:11:04,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:11:04,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:11:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:11:04,768 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 17:11:05,054 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-24 17:11:05,228 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2018-10-24 17:11:05,684 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2018-10-24 17:11:05,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:11:05,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 17:11:05,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 17:11:05,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 17:11:05,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 17:11:05,686 INFO L87 Difference]: Start difference. First operand 48559 states and 60406 transitions. Second operand 7 states. [2018-10-24 17:11:29,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:11:29,363 INFO L93 Difference]: Finished difference Result 118988 states and 144128 transitions. [2018-10-24 17:11:29,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:11:29,364 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 554 [2018-10-24 17:11:29,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:11:29,455 INFO L225 Difference]: With dead ends: 118988 [2018-10-24 17:11:29,456 INFO L226 Difference]: Without dead ends: 70431 [2018-10-24 17:11:29,498 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-24 17:11:29,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70431 states. [2018-10-24 17:11:30,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70431 to 66327. [2018-10-24 17:11:30,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66327 states. [2018-10-24 17:11:30,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66327 states to 66327 states and 79040 transitions. [2018-10-24 17:11:30,301 INFO L78 Accepts]: Start accepts. Automaton has 66327 states and 79040 transitions. Word has length 554 [2018-10-24 17:11:30,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:11:30,301 INFO L481 AbstractCegarLoop]: Abstraction has 66327 states and 79040 transitions. [2018-10-24 17:11:30,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 17:11:30,302 INFO L276 IsEmpty]: Start isEmpty. Operand 66327 states and 79040 transitions. [2018-10-24 17:11:30,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2018-10-24 17:11:30,332 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:11:30,333 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 17:11:30,333 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:11:30,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:11:30,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1236237032, now seen corresponding path program 1 times [2018-10-24 17:11:30,334 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:11:30,335 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:11:30,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:11:30,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:11:30,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:11:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:11:30,957 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 515 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-10-24 17:11:30,957 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:11:30,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 17:11:30,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:11:30,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:11:30,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:11:30,958 INFO L87 Difference]: Start difference. First operand 66327 states and 79040 transitions. Second operand 4 states. [2018-10-24 17:11:48,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:11:48,757 INFO L93 Difference]: Finished difference Result 162716 states and 196910 transitions. [2018-10-24 17:11:48,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:11:48,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 582 [2018-10-24 17:11:48,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:11:48,898 INFO L225 Difference]: With dead ends: 162716 [2018-10-24 17:11:48,899 INFO L226 Difference]: Without dead ends: 96391 [2018-10-24 17:11:48,968 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 17:11:49,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96391 states. [2018-10-24 17:11:50,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96391 to 96378. [2018-10-24 17:11:50,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96378 states. [2018-10-24 17:11:50,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96378 states to 96378 states and 111949 transitions. [2018-10-24 17:11:50,561 INFO L78 Accepts]: Start accepts. Automaton has 96378 states and 111949 transitions. Word has length 582 [2018-10-24 17:11:50,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:11:50,561 INFO L481 AbstractCegarLoop]: Abstraction has 96378 states and 111949 transitions. [2018-10-24 17:11:50,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:11:50,562 INFO L276 IsEmpty]: Start isEmpty. Operand 96378 states and 111949 transitions. [2018-10-24 17:11:50,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 891 [2018-10-24 17:11:50,596 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:11:50,597 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:11:50,598 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:11:50,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:11:50,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1329973613, now seen corresponding path program 1 times [2018-10-24 17:11:50,598 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:11:50,599 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:11:50,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:11:50,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:11:50,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:11:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:11:51,796 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-10-24 17:11:51,797 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:11:51,797 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 17:11:51,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:11:51,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:11:51,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:11:51,799 INFO L87 Difference]: Start difference. First operand 96378 states and 111949 transitions. Second operand 4 states. [2018-10-24 17:12:08,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:12:08,172 INFO L93 Difference]: Finished difference Result 192758 states and 223906 transitions. [2018-10-24 17:12:08,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:12:08,177 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 890 [2018-10-24 17:12:08,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:12:08,287 INFO L225 Difference]: With dead ends: 192758 [2018-10-24 17:12:08,287 INFO L226 Difference]: Without dead ends: 96382 [2018-10-24 17:12:08,348 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 17:12:08,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96382 states. [2018-10-24 17:12:09,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96382 to 96370. [2018-10-24 17:12:09,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96370 states. [2018-10-24 17:12:09,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96370 states to 96370 states and 106904 transitions. [2018-10-24 17:12:09,210 INFO L78 Accepts]: Start accepts. Automaton has 96370 states and 106904 transitions. Word has length 890 [2018-10-24 17:12:09,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:12:09,211 INFO L481 AbstractCegarLoop]: Abstraction has 96370 states and 106904 transitions. [2018-10-24 17:12:09,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:12:09,211 INFO L276 IsEmpty]: Start isEmpty. Operand 96370 states and 106904 transitions. [2018-10-24 17:12:09,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 924 [2018-10-24 17:12:09,246 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:12:09,247 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:09,247 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:12:09,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:12:09,247 INFO L82 PathProgramCache]: Analyzing trace with hash 250505118, now seen corresponding path program 1 times [2018-10-24 17:12:09,248 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:12:09,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:12:09,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:12:09,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:12:09,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:12:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:12:10,776 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-10-24 17:12:10,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:12:10,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 17:12:10,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:12:10,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:12:10,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:12:10,779 INFO L87 Difference]: Start difference. First operand 96370 states and 106904 transitions. Second operand 4 states. [2018-10-24 17:12:37,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:12:37,295 INFO L93 Difference]: Finished difference Result 272112 states and 307338 transitions. [2018-10-24 17:12:37,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:12:37,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 923 [2018-10-24 17:12:37,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:12:37,522 INFO L225 Difference]: With dead ends: 272112 [2018-10-24 17:12:37,523 INFO L226 Difference]: Without dead ends: 175744 [2018-10-24 17:12:37,588 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 17:12:37,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175744 states. [2018-10-24 17:12:38,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175744 to 175662. [2018-10-24 17:12:38,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175662 states. [2018-10-24 17:12:40,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175662 states to 175662 states and 195218 transitions. [2018-10-24 17:12:40,017 INFO L78 Accepts]: Start accepts. Automaton has 175662 states and 195218 transitions. Word has length 923 [2018-10-24 17:12:40,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:12:40,018 INFO L481 AbstractCegarLoop]: Abstraction has 175662 states and 195218 transitions. [2018-10-24 17:12:40,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:12:40,019 INFO L276 IsEmpty]: Start isEmpty. Operand 175662 states and 195218 transitions. [2018-10-24 17:12:40,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2018-10-24 17:12:40,035 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:12:40,036 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:40,036 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:12:40,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:12:40,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1523479339, now seen corresponding path program 1 times [2018-10-24 17:12:40,037 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:12:40,038 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:12:40,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:12:40,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:12:40,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:12:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:12:41,258 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 527 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-10-24 17:12:41,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:12:41,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 17:12:41,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 17:12:41,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 17:12:41,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:12:41,260 INFO L87 Difference]: Start difference. First operand 175662 states and 195218 transitions. Second operand 5 states. [2018-10-24 17:13:01,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:13:01,633 INFO L93 Difference]: Finished difference Result 467750 states and 519962 transitions. [2018-10-24 17:13:01,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:13:01,634 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 957 [2018-10-24 17:13:01,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:13:01,962 INFO L225 Difference]: With dead ends: 467750 [2018-10-24 17:13:01,962 INFO L226 Difference]: Without dead ends: 287986 [2018-10-24 17:13:02,042 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:13:02,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287986 states. Received shutdown request... [2018-10-24 17:13:05,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287986 to 282225. [2018-10-24 17:13:05,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282225 states. [2018-10-24 17:13:05,778 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 17:13:05,784 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 17:13:05,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 05:13:05 BoogieIcfgContainer [2018-10-24 17:13:05,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 17:13:05,785 INFO L168 Benchmark]: Toolchain (without parser) took 239070.71 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -529.0 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-10-24 17:13:05,787 INFO L168 Benchmark]: CDTParser took 0.21 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 17:13:05,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3533.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-10-24 17:13:05,790 INFO L168 Benchmark]: Boogie Procedure Inliner took 1203.99 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 874.5 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-24 17:13:05,791 INFO L168 Benchmark]: Boogie Preprocessor took 819.72 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 95.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. [2018-10-24 17:13:05,794 INFO L168 Benchmark]: RCFGBuilder took 16494.23 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 284.7 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -393.8 MB). Peak memory consumption was 867.1 MB. Max. memory is 7.1 GB. [2018-10-24 17:13:05,796 INFO L168 Benchmark]: TraceAbstraction took 217013.03 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 1.0 GB). Free memory was 2.5 GB in the beginning and 1.9 GB in the end (delta: 525.9 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-10-24 17:13:05,802 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 3533.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1203.99 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 874.5 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 819.72 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 95.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16494.23 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 284.7 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -393.8 MB). Peak memory consumption was 867.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 217013.03 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 1.0 GB). Free memory was 2.5 GB in the beginning and 1.9 GB in the end (delta: 525.9 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 118). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 216.9s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 198.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15354 SDtfs, 42305 SDslu, 3359 SDs, 0 SdLazy, 81634 SolverSat, 18220 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 167.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 14 SyntacticMatches, 6 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=175662occurred in iteration=8, 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: 10.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 16844 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 4325 NumberOfCodeBlocks, 4325 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 4316 ConstructedInterpolants, 0 QuantifiedInterpolants, 6941611 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 3269/3269 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown